AXLE ASSEMBLY WITH OUTBOARD AXLE BEARINGS

An axle assembly having an axle housing, a wheel end cover and an axle shaft. The axle housing has a tubular member with an end flange coupled thereto. A pair of axle bearings are mounted to the axle shaft and the end flange and support the axle shaft for rotation relative to the axle housing. The wheel end cover is mounted to the end flange and carries a seal that is engaged to the axle shaft. A method for assembling an axle assembly is also provided. 1. An axle assembly comprising:an axle housing having a tubular member and an end flange that is fixedly coupled to the tubular member, the end flange defining a central body and a first flange that extends radially outwardly from the central body, the central body defining a through bore, a first flange mount and an outer seal surface, the through bore having first and second bearing bore portions, the first flange mount having a first annular shoulder;an axle shaft that defines an inner seal surface, a first bearing mount and a second bearing mount;a dust shield mount abutted to the first annular shoulder on the first flange mount;a wheel end cover having an annular body and a second flange that extends radially outwardly from the annular body, the second flange abutting the dust shield on a side of the dust shield opposite the first shoulder, the annular body being engaged to the outer seal surface of the central body;a seal that is mounted to the annular body of the wheel end cover and sealingly engages the inner seal surface of the axle shaft; andfirst and second axle bearings, the first axle bearing being located on the first bearing mount and the first bearing bore portion, the second axle bearing being located on the second bearing mount and the second bearing bore portion, the first and second axle bearings supporting the axle shaft for rotation relative to the axle housing.2. The axle assembly of claim 1 , wherein the seal is overmolded onto the wheel end cover.3. The axle assembly of claim 1 , wherein ...

Hydraulically operated clutch actuator

A clutched device including an actuator and a clutch. The actuator can include a housing and a piston having a first, second, and third face. The first face and the housing can define a first chamber. The second face and the housing can define a second chamber. The second face can have a greater surface area than the first face. The third face and the housing can define a third chamber, isolated from the first and second chambers. A conduit can couple the first and second chambers. A vent can be coupled to the third chamber. A pump can pump fluid from a reservoir to the first chamber. A valve can selectively inhibit fluid communication between the second chamber and the reservoir. A shift element can be coupled to the piston for common translation and can move a clutch member between first and second positions.

Axle assembly

An axle assembly with a housing, a pinion, a ring gear, a bearing and a pair of shafts. The pinon is mounted to the housing for rotation about a first axis. The ring gear is received in the housing and meshingly engaged with the pinion. The bearing supports the ring gear for rotation relative to the housing about a second axis and also handles thrust loads between the housing and the ring gear that are directed (in both directions) along the second axis. The bearing has a plurality of bearing elements and is abutted against a shoulder formed on the housing that is positioned along the second axis between the first axis and the bearing elements. The differential assembly has a differential case, which is coupled to the ring gear for rotation therewith, and a pair of output members that are coupled to the shafts for common rotation.

AXLE ASSEMBLY

A family of axle assemblies that employ a modular concept to maximize part commonality amongst the several axle assemblies. The axle assemblies have a housing assembly that employs a main housing that is formed from a casting that is common to all of the axle assemblies. 1. An axle assembly comprising:a housing defining a pinion bearing bore;an input pinion;a pinion bearing received in the pinion bearing bore and supporting the input pinion relative to the housing for rotation about a first axis and for axial thrust in opposite directions along the first axis;a retainer plate abutted against the single bearing on an end of the single bearing opposite the housing;a plurality of threaded fasteners securing the retainer plate to the housing, the threaded fasteners being disposed about a bolt circle, the threaded fasteners having a centerline and a major diameter;a differential assembly mounted in the housing for rotation about a second axis that is not parallel to the first axis; anda ring gear meshingly engaged with the input pinion and coupled to the differential assembly for rotation therewith about the second axis;wherein the centerlines of a first quantity of the threaded fasteners are clustered into a segment, the segment spanning less than 180 degrees of the bolt circle and extending radially outward from the first axis beyond the bolt circle by a distance that is less than or equal to five times the major diameter of the threaded fasteners, wherein a second quantity of the threaded fasteners are not disposed within the segment, and wherein the second quantity is less than the first quantity.2. The axle assembly of claim 1 , wherein the segment spans 120 degrees or less of the bolt circle.3. The axle assembly of claim 2 , wherein the segment spans 90 degrees or less of the bolt circle.4. The axle assembly of claim 1 , further comprising an axle mount that is fixedly coupled to the retainer plate.5. The axle assembly of claim 1 , wherein the pinion bearing is a ...

HYDRAULICALLY OPERATED CLUTCH ACTUATOR

A clutched device including an actuator and a clutch. The actuator can include a housing and a piston having a first, second, and third face. The first face and the housing can define a first chamber. The second face and the housing can define a second chamber. The second face can have a greater surface area than the first face. The third face and the housing can define a third chamber, isolated from the first and second chambers. A conduit can couple the first and second chambers. A vent can be coupled to the third chamber. A pump can pump fluid from a reservoir to the first chamber. A valve can selectively inhibit fluid communication between the second chamber and the reservoir. A shift element can be coupled to the piston for common translation and can move a clutch member between first and second positions. 1. A clutched device comprising: a first member and a second member that are rotatable about an axis; and', 'a clutch having a clutch member that is movable along the axis between a first clutch position and a second clutch position, wherein the clutch is configured to transmit rotary power between the first and second members when the clutch member is in the first clutch position, and wherein the clutch is configured to decouple the first and second members when the clutch member is in the second clutch position; and, 'a vehicle component including a housing;', 'a piston that is slidably received within the housing and translatable along the axis, the piston having a first piston face, a second piston face, and a third piston face, wherein the first piston face and the housing define a first chamber, wherein the second piston face and the housing define a second chamber and the second piston face has a greater surface area than the first piston face, and wherein the third piston face and the housing define a third chamber that is fluidly isolated from the first and second chambers;', 'a conduit that fluidly couples the first and second chambers;', 'a vent ...

Axle assembly

An axle assembly having an input pinion with a pinion gear, which is received in an axle housing and rotatable about a first axis, and a pinion shaft. The pinion gear is meshed with a ring gear that is coupled to a differential assembly. A head bearing, which is disposed on a first axial end of the input pinion, supports the input pinion for rotation relative to the housing about the first axis. A tail bearing supports the input pinion for rotation relative to the housing about the first axis. The pinion gear is disposed axially between the tail bearing and the head bearing. A bearing groove is formed into the pinion shaft and the bearing elements are received into the bearing groove such that an inner bearing race of the tail bearing is unitarily and integrally formed with the pinion shaft.

Disconnectable driveline for all-wheel drive vehicle

A vehicle driveline that includes a differential assembly, a two-speed transmission, a power take-off unit, a range sleeve, a mode sleeve and an input shaft. The range sleeve is non-rotatably but axially slidably coupled to the input shaft. The range sleeve provides rotary power to the two-speed transmission and is movable into different positions to control the gear ratio in which the two-speed transmission operates. The two-speed transmission outputs rotary power to the differential assembly. The mode sleeve is selectively movable into a position where it transmits rotary power between the range sleeve and a PTU input of the power-take off unit. Movement of the range and mode sleeves can be coordinated to provide a two-wheel drive high speed mode, a four-wheel drive high speed mode and a four-wheel drive low speed mode.

AXLE ASSEMBLY

An axle assembly with a housing, a pinion, a ring gear, a bearing and a pair of shafts. The pinon is mounted to the housing for rotation about a first axis. The ring gear is received in the housing and meshingly engaged with the pinion. The bearing supports the ring gear for rotation relative to the housing about a second axis and also handles thrust loads between the housing and the ring gear that are directed (in both directions) along the second axis . The bearing has a plurality of bearing elements and is abutted against a shoulder formed on the housing that is positioned along the second axis between the first axis and the bearing elements. The differential assembly has a differential case, which is coupled to the ring gear for rotation therewith, and a pair of output members that are coupled to the shafts for common rotation.

DRIVELINE COMPONENT WITH MECHANISM TO CONTROL LUBRICANT LEVEL

A driveline component with a housing, which defines a sump, a power-transmitting device received in the housing, a reservoir coupled to the housing, and a reservoir level control device (RLCD). The reservoir has an inlet and outlet and defines a cavity. The RLCD has a skimmer and an outlet port flow control (OPFC). The skimmer is coupled to the housing for movement between a first position, in which the skimmer is positioned relative to a driven component of the power-transmitting device to skim the lubricant from the driven component, and a second position. The OPFC can be operated in a first condition, in which fluid flow from the outlet port is substantially blocked to thereby inhibit a flow of the lubricant in the cavity to the sump, and a second condition, in which fluid flow through the outlet port from the cavity to the sump is permitted. 1. A driveline component comprising:a power-transmitting device having an input member, a pair of output members, and a differential-and-clutch assembly having at least one clutch, the differential-and-clutch assembly being configured to operate in a first mode, in which rotary power is transmitted from the input member to the output members in a manner that permits speed differentiation between the output members, and in a second mode in which rotary power is not transmitted through the at least one clutch to thereby decouple the input member from at least one of the output members;a housing in which the power-transmitting device is housed, the housing having a sump that is configured to hold a lubricant that is configured to lubricate at least a portion of the differential and clutch assembly;a reservoir coupled to the housing, the reservoir defining a reservoir cavity and having a reservoir inlet and a reservoir outlet that are in fluid communication with the reservoir cavity; anda reservoir level control device having a lubricant skimmer and an outlet port flow control, the lubricant skimmer being movably coupled to the ...

Two-speed drive module

A drive module that includes an electric motor, a differential assembly with a differential input member and a pair of differential output members, a multi-speed transmission assembly, which transmits rotary power between the electric motor and the differential input member, and a pair of axle shafts that are each coupled to an associated one of the differential output members for rotation therewith. The multi-speed transmission assembly and includes a housing, a two-speed planetary transmission stage, a plurality of clutches and a transmission output member that provides rotary power to the differential input member. The two-speed planetary transmission stage has an input sun gear, which is driven by the motor, and employs a set of planet gears having compound planet gears that provide a gear reduction between the sun gear and the transmission output member. The clutches are employed to control an overall reduction ratio.

Driveline component with mechanism to control lubricant level

A driveline component with a housing, which defines a sump, a power-transmitting device received in the housing, a reservoir coupled to the housing, and a reservoir level control device (RLCD). The reservoir has an inlet and outlet and defines a cavity. The RLCD has a skimmer and an outlet port flow control (OPFC). The skimmer is coupled to the housing for movement between a first position, in which the skimmer is positioned relative to a driven component of the power-transmitting device to skim the lubricant from the driven component, and a second position. The OPFC can be operated in a first condition, in which fluid flow from the outlet port is substantially blocked to thereby inhibit a flow of the lubricant in the cavity to the sump, and a second condition, in which fluid flow through the outlet port from the cavity to the sump is permitted.

AXLE ASSEMBLY

An axle assembly with a carrier housing, an input pinion and a ring gear. The input pinion includes pinion gear teeth and is supported for rotation about a first axis relative to the carrier housing via first and second bearings. The ring gear includes ring gear teeth that are meshed to the pinion gear teeth and a third bearing supports the ring gear for rotation about the second axis relative to the carrier housing. The third bearing is disposed along the second axis on a side of the ring gear that is opposite the first axis. 1. An axle assembly comprising:a housing;an input pinion having a pinion gear and a pinion shaft, the input pinion being received in the housing and being rotatable about a first axis;a ring gear meshed with the pinion gear and rotatable about a second axis that is transverse to the first axis;a differential assembly having a differential input and a pair of output members, the differential input being driven by the ring gear; anda first bearing and a second bearing for supporting the input pinon for rotation relative to the housing about the first axis, the first bearing being a four-point angular contact bearing having a first outer bearing race, a first inner bearing race and a single row of bearing elements that are disposed between the first outer bearing race and the first inner bearing race.2. The axle assembly of claim 1 , wherein the pinion gear is disposed along the first axis between the first bearing and the second bearing.3. The axle assembly of claim 1 , wherein the differential assembly comprises a differential gearset that is received in the differential input.4. The axle assembly of claim 3 , wherein the differential gearset comprises a pair of side gears and a plurality of differential pinions claim 3 , each of the side gears being rotatably coupled to an associated one of the output members claim 3 , each of the differential pinions being meshingly engaged to the pair of side gears.5. The axle assembly of claim 3 , wherein ...

CLUTCH ASSEMBLY WITH FLUID EVACUATION

A clutched device can include a differential, a clutch, and a gate. The differential can transmit torque between an input member and first and second output members. A housing can define a sump and a reservoir spaced apart from the sump. A first aperture open to the sump and reservoir can be above a static fluid level of the sump. A second aperture can couple the sump and reservoir below the static fluid level. An outer clutch plate carrier can rotate through the sump and sling fluid through the first aperture. The outer carrier can be coupled for rotation with the second output member and an inner clutch plate carrier can be coupled to a third output member. The gate can be movable between first and second positions. In the first position the gate can block the second aperture. In the second position the second aperture can be open.

Dual piston actuator

A power transmitting component can include a friction clutch, hydraulic ram, and an actuator. The actuator can include first and second pistons, and a resilient member. The resilient member can translate the first piston to provide a high volume of fluid at low pressure to the ram when a pressure in a first chamber is less than a predetermined pressure and the second piston is translated in a first direction. The resilient member can compress between the first and second pistons to permit relative motion between the pistons when the pressure is equal to, or greater than, the predetermined pressure and the second piston is translated in the first direction. The second piston provides a low volume of fluid at high pressure to the ram when pressure in the first chamber is equal to, or greater than, the predetermined pressure and the second piston is translated in the first direction.

AXLE ASSEMBLY WITH OUTBOARD AXLE BEARINGS

An axle assembly having an axle housing, an axle shaft, a plurality of axle shaft bearings and a seal. The axle housing has a tubular member and an end flange that is coupled to the tubular member. The axle shaft bearings and the seal are received in the end flange and are engaged to the axle shaft. The axle shaft bearings support the axle shaft for rotation relative to the axle housing. The seal is sealingly engaged to the end flange and the axle shaft. A method for assembling an axle assembly is also provided. 1. An axle assembly comprising:an axle housing having a tubular member and an end flange that is fixedly coupled to the tubular member, the end flange defining a first bearing bore and a second bearing bore;a ring gear received in the housing and rotatable about a rotary axis;a ring gear bearing that directly supports the ring gear for rotation about the rotary axis;a differential assembly received in the axle housing, the differential assembly having a pair of differential output members;an axle shaft received thorough the end flange and extending into the tubular member, the axle shaft having a proximal end, which is drivingly engaged to one of the differential output members, and a distal end opposite the proximal end, the distal end comprising a first bearing journal, a second bearing journal, a seal interface and a wheel flange, the first bearing journal being disposed along the rotary axis between the second bearing journal and the seal interface, the wheel flange being adapted to abut a wheel that is mounted to the axle shaft for rotation therewith, the seal interface being disposed along the rotary axis between the wheel flange and the first bearing journal;first and second tapered roller bearings, the first tapered roller bearing being received in the first bearing bore and on the first bearing journal, the second tapered roller bearing being received in the second bearing bore and on the second bearing journal, the first and second tapered roller ...

Axle assembly with outboard axle bearings

An axle assembly having an axle housing, a wheel end cover and an axle shaft. The axle housing has a tubular member with an end flange coupled thereto. A pair of axle bearings are mounted to the axle shaft and the end flange and support the axle shaft for rotation relative to the axle housing. The wheel end cover is mounted to the end flange and carries a seal that is engaged to the axle shaft. A method for assembling an axle assembly is also provided.

DUAL PISTON ACTUATOR

An actuator assembly can include a housing, first and second pistons, and spring. The housing can include first and second cylinders disposed about an axis. The first piston and cylinder can define a first chamber in fluid communication with an inlet. The second piston and cylinder can define a second chamber in fluid communication with an outlet. Opposite ends of the spring can be coupled for axial translation with the first and second piston, respectively. The spring can translate the first piston to provide high volume, low pressure fluid to the outlet when a pressure in the first chamber is less than a predetermined pressure. When the pressure in the first chamber is equal to, or greater than, the predetermined pressure and the second piston is translated in the first axial direction, the spring can compress and the second piston can provide low volume, high pressure fluid to the outlet. 1. An actuator assembly comprising:a first piston and a first cylinder, the first piston being received in the first cylinder, the first piston and the first cylinder defining a first chamber, the first cylinder defining an inlet in fluid communication with the first chamber;a second piston and a second cylinder, the second piston being received in the second cylinder, the second piston and the second cylinder defining a second chamber, the second cylinder defining an outlet in fluid communication with the second chamber, the second piston defining a fluid passage configured to permit fluid communication between the first and second chambers;a valve body being movable between a first valve position wherein the fluid passage is open to permit fluid communication between the first and second chambers, and a second valve position wherein the valve body blocks the fluid passage to prevent fluid communication between the first and second chambers; anda linear actuator configured to axially translate the second piston, and configured to axially translate the first piston when a ...

AXLE ASSEMBLY

An axle assembly with a carrier housing, an input pinion and a ring gear. The input pinion includes pinion gear teeth and is supported for rotation about a first axis relative to the carrier housing via first and second bearings that are disposed along the first axis on opposite sides of the pinion gear teeth. The ring gear includes ring gear teeth that are meshed to the pinion gear teeth and a third bearing supports the ring gear for rotation about the second axis relative to the carrier housing. The third bearing is disposed along the second axis on a side of the ring gear that is opposite the first axis. 1. An axle assembly comprising:a carrier housing;an input pinion received in the carrier housing and rotatable about a first axis, the input pinion having a plurality of pinion teeth;a ring gear received in the carrier housing and rotatable about a second axis that is not parallel to the first axis, the ring gear having a plurality of ring gear teeth;a case received in the carrier housing and coupled to the ring gear for rotation about the second axis;a first bearing assembly supporting the input pinion for rotation about the first axis relative to the carrier housing, the first bearing assembly having a first outer bearing race that is mounted to the carrier housing at a location along the first axis between the case and the ring gear teeth;a second bearing assembly supporting the input pinion for rotation about the first axis relative to the carrier housing, the second bearing assembly being disposed along the first axis on a side of the pinion teeth that is opposite the first bearing; anda third bearing assembly supporting the ring gear for rotation about the second axis relative to the carrier housing, the third bearing assembly being disposed along the second axis on a side of the ring gear teeth that is opposite the first axis.2. The axle assembly of claim 1 , wherein the third bearing assembly comprises a plurality of bearing elements that are disposed ...

Disconnecting rear drive axle for longitudinally arranged powertrains

A powertrain with a disconnecting rear drive axle generally includes a prime mover including an output that rotates about a rotational axis. A transmission includes an output that rotates about a rotational axis. The rotational axes of the outputs are substantially parallel to a longitudinal axis of the powertrain. A front driveline is operable to direct rotary power from the prime mover to front vehicle wheels. A rear driveline includes a propeller shaft that provides rotary power to a first shaft member and a second shaft member through a pinion and a ring gear. The first shaft member and the second shaft are operable to connect to rear vehicle wheels. A power switching mechanism has an engaged condition and a disengaged condition. The power switching mechanism is operable to direct the rotary power from the transmission to the rear driveline in the engaged condition. A torque transfer device has an engaged condition and a disengaged condition. The power switching mechanism and the torque transfer device in the disengaged condition are operable to only transmit rotary power to the first vehicle wheels. The torque transfer device in the disengaged condition prevents the first shaft member and the second shaft member from back-driving the ring gear and the pinion of the rear driveline. The power switching mechanism in the disengaged condition prevents the transmission from driving the propeller shaft.

MULTIPLE PUMP CONFIGURATION FOR ELECTRONIC LIMITED SLIP DIFFERENTIAL AND TORQUE TRANSFER DEVICE

A hydraulic system for a vehicle drivetrain includes a torque transfer device having a first actuator that actuates to selectively communicate rotatable motion from an input member to an output member. A limited slip differential selectively transfers drive torque from the output member to at least one of the first and second axle shafts. A motor drives a first and a second output shaft. A first pump is rotatably driven by the first output shaft. The first pump selectively supplies the hydraulic fluid to the first actuator. A second pump is rotatably driven by the second output shaft. The second pump selectively supplies the hydraulic fluid to the second actuator. 1. A hydraulic system for a vehicle drive train , the hydraulic system comprising:a torque transfer device having a first actuator that actuates to selectively communicate rotatable motion from an input member to an output member;a limited slip differential that selectively transfers drive torque from the output member to at least one of the first and second axle shafts, the limited slip differential having a second actuator that actuates to vary the drive torque between a first and a second axle shaft;a motor that drives a first and a second output shaft;a first pump that is rotatably driven by the first output shaft of the motor and that selectively supplies the hydraulic fluid to the first actuator; anda second pump that is rotatably driven by the second output shaft of the motor and that selectively supplies the hydraulic fluid to the second actuator.2. The hydraulic system of claim 1 , further comprising a first clutch disposed between the motor and the second pump.3. The hydraulic system of wherein the first clutch actuates to selectively transfer torque from the motor to the second pump.4. The hydraulic system of wherein the first clutch is an electronic clutch.5. The hydraulic system of claim 2 , further comprising a second clutch disposed between the motor and the first pump.6. The hydraulic ...

POWER TRANSMITTING COMPONENT

A power transmitting component with a housing, a shaft and a seal. The housing has a wall member, a shaft bore, and a shield wall. The shaft bore is formed through the wall member. The shield wall is coupled to and extends outwardly from the wall member. The shield wall is formed about the shaft bore and defines a drain spout. The shaft is received through the shaft bore. The seal is received in the shaft bore and sealingly engages the housing and the shaft. The drain spout is configured to drain liquid from a space that is radially inward of the shield wall when the power transmitting component is disposed in a predetermined orientation. 1. A power transmitting component comprising:a housing having a wall member, a shaft bore, and a shield wall, the shaft bore being formed through the wall member, the shield wall being coupled to and extending outwardly from the wall member, the shield wall being formed about the shaft bore and defining a drain spout;a shaft received through the shaft bore; anda seal received in the shaft bore and sealingly engaging the housing and the shaft;wherein the drain spout is configured to drain liquid from a space that is radially inward of the shield wall when the power transmitting component is disposed in a predetermined orientation.2. The power transmitting component of claim 1 , further comprising a slinger coupled to the shaft claim 1 , the slinger extending radially outwardly from the shaft and into the space.3. The power transmitting component of claim 2 , wherein an end of the slinger tapers outwardly toward the shield wall with decreasing distance to the wall member.4. The power transmitting component of claim 2 , wherein the drain spout terminates at a pocket located axially between the slinger and the shield wall.5. The power transmitting component of claim 1 , wherein the wall member comprises an annular projection to which the seal is mounted.6. The power transmitting component of claim 5 , wherein a radially outward side of ...

TWO-SPEED DISCONNECTING DRIVELINE WITH ONE REDUCTION GEARSET

A vehicle driveline that includes an input member, a multi-speed transmission, a first differential assembly, a first bevel ring gear and a mode clutch that are disposed axially along a rotational axis of the input member. The multi-speed transmission includes a range collar that is axially movable along the input member axis. 1. A vehicle driveline comprising:a housing;an input member received in the housing and being rotatable about an input member axis, the input member being adapted to receive rotary power from a vehicle transmission;a multi-speed driveline transmission disposed in the housing, the multi-speed driveline transmission comprising an input shaft, a sun gear, a plurality of planet gears, a planet carrier, a ring gear and a range collar, the sun gear being mounted on the input shaft for rotation therewith, the planet gears meshingly engaged with the sun gear and the ring gear, a planet carrier having a carrier body and a plurality of pins that are fixed to the carrier body for rotation therewith, each of the pins journally supporting an associated one of the planet gears, the ring gear being non-rotatably coupled to the housing, the range collar being concentric with the input member and the input shaft and being movable along the input member axis between a first range position, a second range position and a third range position, wherein the range collar rotatably couples the input member to the input shaft when the range collar is in the first range position, wherein rotary power is not transmitted through the range collar when the range collar is disposed in the second range position, and wherein the range collar rotatably couples the input member to the carrier body when the range collar is in the third range position;a first differential assembly having a differential case and a differential gearset having a pair of first output members, the differential case being coupled to the carrier body for rotation therewith, the differential gearset being ...

DISCONNECTABLE DRIVELINE FOR ALL-WHEEL DRIVE VEHICLE

A disconnectable driveline arrangement for an all-wheel drive vehicle includes a power take-off unit having a disconnect mechanism, and a drive module having a torque transfer device and a limited slip clutch assembly. 1. A drivetrain for an all-wheel drive motor vehicle , the drivetrain comprising:a first driveline that is adapted to drive a pair of first vehicle wheels, the first driveline including a first differential and a pair of first axleshafts, the first differential having a first differential case and a pair of first output gears driven by the first differential case, the first axleshafts being drivingly coupled to the first output gears and to the first vehicle wheels;a power switching mechanism having an input shaft adapted to rotate with the first differential case, an output pinion shaft, and a disconnect mechanism, the disconnect mechanism being operable in a disconnected mode, which inhibits transmission of rotary power between the input shaft and the output pinion shaft, and in a connected mode that permits transmission of rotary power between the input shaft and the output pinion shaft; anda second driveline that is adapted to drive a pair of second vehicle wheels, the second driveline including a propshaft and a drive module, the drive module including an input pinion shaft, a second differential, a pair of second axleshafts, which are adapted to be drivingly coupled to the pair of second vehicle wheels, a torque transfer device, and a limited slip clutch assembly, the second differential having a second differential case and a pair of second output gears that are driven by the second differential case, the second output gears being drivingly coupled to the second axleshafts, the input pinion shaft being coupled by the propshaft to the output pinion shaft of the power switching mechanism, the torque transfer device being operable in a first switching mode, which inhibits transmission of rotary power between the input pinion shaft and the second ...

DISCONNECTABLE DRIVELINE WITH A MULTI-SPEED RDM AND PTU

A disconnectable all-wheel drive system for motor vehicles having a multi-speed power take-off unit and a multi-speed rear drive module. 1. An all-wheel drive system for a motor vehicle , the motor vehicle having a powertrain , a first pair of wheels and a second pair of wheels , the all-wheel drive system comprising:a primary driveline including a first input, a first differential and a power take-off unit, the first input being configured to be driven by the powertrain, the first differential being configured to distribute rotary power for driving the first pair of wheels, the power take-off unit having a disconnect mechanism, a first multi-speed range unit and a first output; anda secondary driveline including a second input, a second differential and a second multi-speed range unit, the second input being coupled to the power take-off unit to receive rotary power therefrom, the second differential being configured to distribute rotary power for driving the second pair of wheels;wherein the disconnect mechanism is selectively operable to connect the first input to the first output, wherein the first multi-speed range unit is selectively operable to establish first and second speed ratio drive connections between the first input and the first differential, and when the second multi-speed range unit is selectively operable to establish first and second speed ratio drive connections between the second input and the second differential.2. The all-wheel drive system of claim 1 , wherein the second multi-speed range unit comprises a transmission claim 1 , which is operable in a first speed ratio and a second claim 1 , different speed ratio claim 1 , and first and second clutches that are selectively operable to control operation of the transmission.3. The all-wheel drive system of claim 2 , wherein at least one of first and second clutches comprises a multi-plate friction clutch.4. The all-wheel drive system of claim 2 , wherein the transmission is a planetary ...

DISCONNECTABLE DRIVELINE FOR ALL-WHEEL DRIVE VEHICLE

A disconnectable driveline arrangement for an all-wheel drive vehicle includes a power take-off unit having a disconnect mechanism, and a drive module having a torque transfer device and a limited slip clutch assembly. 1. A drivetrain for an all-wheel drive motor vehicle , the drivetrain comprising:a first driveline that is adapted to drive a pair of first vehicle wheels, the first driveline including a first differential and a pair of first axleshafts, the first differential having a first differential case and a pair of first output gears driven by the first differential case, the first axleshafts being drivingly coupled to the first output gears and to the first vehicle wheels;a power switching mechanism having an input shaft, an output pinion shaft, and a disconnect mechanism, the input shaft being driven by the first driveline, the disconnect mechanism being operable in a disconnected mode, which inhibits transmission of rotary power between the input shaft and the output pinion shaft, and in a connected mode that permits transmission of rotary power between the input shaft and the output pinion shaft; anda second driveline that is adapted to drive a pair of second vehicle wheels, the second driveline including a propshaft and a drive module, the drive module including an input pinion shaft, a second differential, a pair of second axleshafts, which are adapted to be drivingly coupled to the pair of second vehicle wheels, a torque transfer device, and a limited slip clutch assembly, the second differential having a second differential case and a pair of second output gears that are driven by the second differential case, the second output gears being drivingly coupled to the second axleshafts, the input pinion shaft being coupled by the propshaft to the output pinion shaft of the power switching mechanism, the torque transfer device being operable in a first switching mode, which inhibits transmission of rotary power between the input pinion shaft and the second ...

INTEGRATED POWER SWITCHING DEVICE HEAT SINK

An electrical assembly that includes a semiconductor die, a heat sink and a case. The semiconductor die includes a power semiconductor device with a plurality of terminals, and a plurality of electrically conductive leads. Each of the electrically conductive leads is electrically coupled to an associated one of the terminals on the power semiconductor device. The heat sink has a base, a mount, and a plurality of fins. The mount extends from a first side of the base and is coupled to the semiconductor die. The fins are fixedly coupled to the base and extend from a second side of the base that is opposite the first side of the base. The case is formed of a first electrically insulating material. A first one of the leads is integrally and unitarily formed with the mount. 1. An electrical assembly comprising:a semiconductor die that includes a power semiconductor device, the power semiconductor device having a plurality of terminals;a plurality of electrically conductive leads, each of the electrically conductive leads being electrically coupled to an associated one of the terminals on the power semiconductor device;a heat sink that is formed of an electrically and thermally conductive material, the heat sink having a base, a mount, and a plurality of fins, wherein the mount extends from a first side of the base and is coupled to the semiconductor die, wherein the plurality of fins are fixedly coupled to the base and extend from a second side of the base that is opposite the first side of the base; anda case formed of a first electrically insulating material, wherein the semiconductor die and the mount are encapsulated in the case,wherein a first one of the plurality of leads is integrally and unitarily formed with the mount.2. The electrical assembly of wherein each of the leads that is not unitarily and integrally formed with the mount is electrically coupled to its associated one of the terminals via a bond wire.3. The electrical assembly of claim 1 , wherein the ...

ELECTRIC DRIVE MODULE

An electric drive module having a motor and an inverter that are disposed in a housing The motor includes a stator, which has a plurality of sets of windings. The inverter has a plurality of power semiconductors, which are mounted into a retaining member, an end plate, which is sealingly coupled to the retaining member, and an inlet port that extends through the end plate. Sets of the semiconductor devices are electrically coupled to corresponding sets of the windings. Power terminals on the semiconductor devices are coupled to a heat sink. Fins on the heat sinks extend into an annular region that is adjacent to axial ends of the windings. At least one of the retaining member and the end plate is sealingly coupled to the housing assembly. The inlet port, the annular region and cooling passages in the stator are coupled in fluid communication. 1. An electric drive module comprising:{'b': '12', 'a housing assembly ();'}{'b': 14', '12', '32', '34', '32', '36', '294', '450', '32', '36', '40', '294', '36', '34', '32', '40, 'an electric motor () received in the housing assembly () and having a stator () and a rotor (), the stator () having a plurality of sets of field windings () and a plurality of phase leads (), wherein a plurality of stator cooling passages () are formed through the stator (), each of the sets of field windings () being disposed about a rotary axis (), each of the phase leads () being electrically coupled to a corresponding one of the sets of field windings (), the rotor () being rotatably disposed in the stator () for rotation about the rotary axis (); and'}{'b': 204', '264', '264', '290', '252', '260', '262', '264', '264', '12', '36', '290', '264', '264', '252', '34', '264', '264', '290', '252', '294', '260', '270', '270', '270', '270', '270', '270', '260', '264', '264', '290', '270', '270', '270', '260', '290', '252', '260', '262', '262', '282', '282', '262', '36', '450', '296', '290', '296', '296, 'i': a', 'a', 'a', 'a', 'a', 'b', 'c', 'a', 'b', 'c ...

DISCONNECTING AXLE ASSEMBLY

A disconnecting axle includes a housing assembly including a first end cap coupled to a first side of a housing member to define a clutch cavity, and a second end cap coupled to a second side of the housing member to define a differential cavity. The housing member can define a central bore, a sump, and a plurality of passages. The central bore extends axially between the clutch and differential cavities. The sump can be spaced apart from the clutch and differential cavities, and the central bore. A clutch passage couples the clutch cavity to the sump. A differential passage couples the differential cavity to the sump. A first output member of the differential extends axially within the central bore. A piston is configured to compress friction plates to selectively transmit torque. A pump can pump fluid from the sump to the cylinder to move the piston. 1. A disconnecting axle assembly comprising:a housing assembly including a first end cap, a second end cap, a sump cover, and a housing member, the housing member defining a central bore, a clutch return passage, and a differential return passage, the first end cap being fixedly coupled to a first side of the housing member such that the first end cap and the housing member define a clutch cavity, the second end cap being fixedly coupled to a second side of the housing member such that the second end cap and the housing member define a differential cavity spaced apart from the clutch cavity, the central bore being disposed about an output axis and extending axially between the clutch cavity and the differential cavity, the sump cover being fixedly coupled to a third side of the housing member such that the sump cover and the housing member define a sump that is spaced apart from the clutch cavity, the differential cavity, and the central bore, the clutch return passage coupling the clutch cavity to the sump in fluid communication, and the differential return passage coupling the differential cavity to the sump in ...

CLUTCHED COMPONENT

The present teachings provide for a clutched component including a first member, a second member, and a clutch. The first member can have an output portion. The second member can have an input portion that is disposed within the output portion. The clutch can include a plurality of first lock members and a control member for coordinating radially inward movement of the first lock members to drivingly couple the output portion and the input portion. 1. A driveline component comprising:a differential including an outer differential case, a side gear, and a first rotating member, the outer differential case configured for rotation about a first axis and defining a plurality of circumferentially spaced apart first passages, the first rotating member coupled to the side gear for common rotation about the first axis, the first rotating member defining a plurality of first cavities radially inward of the first passages; anda lock having a plurality of first locking elements and a sleeve, the plurality of first locking elements being received in the plurality of first passages, the sleeve being disposed about the outer differential case and being slidable along the first axis between a first sleeve position and a second sleeve position;wherein when the sleeve is in the first sleeve position, the sleeve holds the plurality of first locking elements in engagement with the plurality of first cavities to non-rotatably couple the outer differential case to the first rotating member, and when the sleeve is in the second sleeve position, the sleeve allows the plurality of first locking elements to disengage the plurality of first cavities to allow relative rotation of the outer differential case and first rotating member.2. The driveline component of claim 1 , wherein the plurality of first passages extend radially through the outer differential case claim 1 , and when in the first sleeve position claim 1 , the sleeve limits radially outward movement of the first locking elements ...

AXLE ASSEMBLY HAVING RING GEAR WITH UNITARILY AND INTEGRALLY FORMED PORTION OF A BEARING RACE

An axle assembly that includes a housing assembly, an input pinion, a ring gear, a ring gear bearing, and a differential assembly having a differential case. The ring gear bearing supports the ring gear for rotation on the housing assembly as well as handles thrust loads between the ring gear and the housing assembly in opposite axial directions. The ring gear bearing includes an outer bearing race having a first race member, which may be unitarily and integrally formed with the ring gear, and a second race member that is received in a groove formed on the ring gear. The differential case is coupled to the ring gear and secures the second race member to the ring gear. 1. An axle assembly comprising:a housing assembly;an input pinion mounted to the housing assembly for rotation about a first axis;a ring gear received in the housing and meshingly engaged with the input pinion;a ring gear bearing that supports the ring gear for rotation relative to the housing assembly about a second axis, the ring gear bearing having a first bearing race, a second bearing race and a plurality of first bearing elements, the first bearing race comprising a first race member and a second race member, the first race member being unitarily and integrally formed with the ring gear, the second race member being received into a circumferentially extending groove formed in the ring gear, the second bearing race of the ring gear bearing being abutted against a shoulder formed on the housing assembly that is positioned along the second axis at a location that is between the first axis and the first bearing elements, the first bearing elements being engaged to the second bearing race and the first and second race members of the first bearing race; anda differential assembly having a differential case and a pair of output members, the differential case being fixedly coupled to the ring gear such that the second race member of the first bearing race is disposed along the second axis between the ...

Vehicle Driveline Component Having A Differential With Asymmetric Differential Gearing

A vehicle driveline component having a limited slip differential with a differential gearset and a pair of clutch packs received in a differential case. The differential gearset employs side gears that are meshed with first differential pinions, which are mounted about a first pin axis, and second differential pinions, which are mounted about a second pin axis that is not perpendicular to the first pin axis. The teeth of the first differential pinions are formed with drive side having a first pressure angle. The teeth of the second differential pinions are formed with a coast side having a second pressure angle that is different from the first pressure angle. The teeth of the side gears are asymmetric and have a first side, which is formed with the first pressure angle, and a second side that is formed with the second pressure angle. 1. A vehicle driveline component comprising:a differential case that is rotatable about a differential axis, the differential case defining a case cavity; anda differential gearset received in the case cavity, the differential gearset comprising a plurality of first differential pinions, a plurality of second differential pinions and a pair of side gears, the first differential pinions having first pinion teeth and being coupled to the differential case for rotation about a first differential pinion axis that is perpendicular to the differential axis, the second differential pinions having second pinion teeth and being coupled to the differential case for rotation about a second differential pinion axis that is perpendicular to the differential axis but non-perpendicular to the first differential pinion axis, each of the side gears being rotatable about the differential axis and having side gear teeth that are meshingly engaged with the first and second pinion teeth;wherein the side gear teeth are asymmetric and have a first side, and a second side wherein the teeth of the first pinions and the first side of the teeth of the side gears ...

Power transmitting component with torque transfer device configured with drag reduction system

The present teachings provide for a power transmitting component including a housing, a clutch, a vent, and a dam. The vent can fluidly couple a first and second cavity. The dam can include a door member. Rotation of the outer carrier through a fluid in the second cavity can sling a portion of the fluid toward the vent to cause the portion of the fluid to be transferred from the second cavity, through the vent, and to the first cavity. When the piston is in a first position, the door member can be in a closed position to limit fluid flow from the first cavity to the second cavity. When the piston is in a second position, the door member can be in an open position to allow fluid to flow from the first cavity to the second cavity.

ELECTRIC DRIVE MODULE WITH TRANSMISSION HAVING PARALLEL TWIN GEAR PAIRS SHARING LOAD TO A FINAL DRIVE GEAR

An electric drive module that includes an electric motor, a differential assembly, and a transmission that transmits rotary power between the electric motor and the differential assembly. The transmission has first and second reductions. The first reduction has a drive gear, which is rotatable about a first axis, and a pair of first reduction gears that are each meshingly engaged to the drive gear rotatable about a respective second axis. The second axes are spaced apart from one another and are parallel to the first axis. The second reduction has a driven gear and a pair of second reduction gears. The driven gear is rotatable about a third axis that is parallel to the first axis. Each of the second reduction gears is being meshingly engaged to the driven gear and non-rotatably coupled to an associated one of the first reduction gears. 1. An electric drive module having:an electric motor having a motor output shaft;a driven gear;a differential assembly driven by the driven gear; anda transmission transmitting rotary power between the electric motor and the driven gear, the transmission including a drive gear, a pair of first reduction gears, and a pair of second reduction gears, the drive gear being coupled to the motor output shaft for rotation therewith about a first axis, each of the first reduction gears being meshingly engaged to the drive gear and being rotatable about a respective second axis, wherein the second axes are spaced apart from one another and are parallel to the first axis, each of the second reduction gears being meshingly engaged to the driven gear and non-rotatably coupled to an associated one of the first reduction gears;wherein the driven gear is rotatable about a third axis.2. The electric drive module of claim 1 , wherein the differential assembly includes a differential input member and wherein the driven gear is coupled to the differential input member for common rotation about the third axis.3. The electric drive module of claim 2 , ...

DISCONNECTING AXLE ASSEMBLY INCLUDING AN ASYMMETRICALLY GEARED DIFFERENTIAL

A disconnecting axle assembly for a vehicle can include a planetary differential and a clutch. The differential input can be meshingly engaged with an input pinion. The clutch can include first and second friction plates. The first plates can be non-rotatably but axially slidably coupled to a first differential output. The second plates can be interleaved with the first plates and non-rotatably but axially slidably coupled to a first axle half-shaft which can drive a first wheel. A second differential output can be drivingly coupled to a second axle half-shaft which can drive a second wheel. The differential can output a greater amount of torque to the first differential output than the second differential output when the vehicle is traveling in a straight line. 1. A disconnecting axle assembly for selectively driving a set of drive wheels of a vehicle , the disconnecting axle assembly comprising:an input pinion supported for rotation about a first axis;a first output member supported for rotation about a second axis that is transverse to the first axis and adapted to output torque to a first wheel of the set of drive wheels;a second output member supported for rotation about the second axis and adapted to output torque to a second wheel of the set of drive wheels;a differential including a differential input member, a first differential output, a second differential output and a differential gearset, the differential input member being supported for rotation about the second axis and meshingly engaged with the input pinion, the planetary gearset being configured to receive input torque from the differential input member and to output differential torque to the first and second differential outputs, the second differential output being drivingly coupled to the second output member, wherein the differential is configured to output a greater amount of torque to the first differential output than the second differential output when the vehicle is traveling in a ...

Power transmitting component including a limited slip differential

A power transmitting component can include a planetary differential including a differential case. The planet carrier can be disposed within the differential case and rotatable about the output axis relative thereto. The first output member can be coupled to the planet carrier for common rotation about the output axis. The second output member can be coupled to the sun gear for common rotation about the output axis. A clutch basket can be fixedly coupled to the planet carrier and disposed within the differential case. A set of first friction plates can be coupled to the clutch basket for common rotation about the output axis therewith and for axial translation relative to the clutch basket. A set of second friction plates can be coupled to the sun gear for common rotation about the output axis and for axial translation relative to the sun gear.

Axle Assembly With Inboard Axle Shaft Bearings That Support A Differential Mechanism

An axle assembly having a housing, a ring gear received in the housing, a ring gear bearing, a pair of shafts, a differential mechanism and a pair of inboard bearings. The ring gear bearing contacts the housing and the ring gear to support the ring gear for rotation about an axis. The shafts are received in the housing and rotate about the axis. Each of the shafts has a bearing mount and a male splined segment. The differential mechanism has a pair of output members, each of which having a splined internal aperture into which the male splined segment of one of the shafts is slidably received. Each shaft bearing is disposed on the bearing mount of one of the axle shafts and supports the shafts for rotation on the housing. The differential mechanism is supported for rotation about the axis by the ring gear bearing and the inboard bearings. 1. A method for forming an axle shaft , the method comprising:providing a wheel flange having a rotational axis, the wheel flange defining a shaft portion, a first joint member and a containment lip, the first joint member having an annular shape and extending along the rotational axis concentric with the shaft portion such that an annular weld cavity is formed radially between the first joint member and the shaft portion, the containment lip being fixedly coupled to the shaft portion and extending radially outwardly therefrom, the containment lip bounding a distal end of the annular weld cavity;providing a tubular shaft that defines a second joint member;causing relative rotation between the wheel flange and the tubular shaft while engaging the first and second joint members to one another to thereby form a friction weld that retains the wheel flange to the tubular shaft;wherein portions of the first and second joint members are extruded during the formation of the friction weld, the extruded portions of the first and second joint members being received into the annular weld cavity radially inward of the containment lip.2. The ...

Modular Disconnecting Drive Module With Torque Vectoring Augmentation

A drive module having a housing, an input pinion, a ring gear driven by the input pinion, a ring gear bearing supporting the ring gear for rotation relative to the housing, a pair of output shafts and a clutch that selectively transmits rotary power between the ring gear and the output shafts. The clutch includes a clutch input, which is rotatably coupled to the ring gear, a clutch plate separator that is rotatably coupled to the clutch input, a pair of clutch outputs, which are each coupled to a respective one of the output shafts, a pair of clutch packs, which transmit rotary power between the clutch input and a respective one of the clutch outputs, and a pair of apply pistons. The apply pistons are housed in the clutch plate separator. 1. A drive module comprising:a housing defining a central cavity, an input axis and an output axis that is transverse to the input axis;an input pinion received in the central cavity and rotatable about the input axis;a ring gear received in the central cavity and meshed with the input pinion;a ring gear bearing mounted to the ring gear and the housing, the ring gear bearing supporting the ring gear for rotation relative to the housing about the output axis;a clutch received in the central cavity, the clutch having a clutch input, which is coupled to the ring gear for rotation therewith, first and second clutch outputs, which are rotatable about the output axis, a clutch pack separator, which is disposed along the output axis between the first and second clutch outputs, first and second clutch packs, and first and second apply pistons, the clutch pack separator being coupled to the clutch input for rotation therewith, the first clutch pack having first and second clutch plates that are interleaved together, the first clutch plates being non-rotatably but axially slidably coupled to the clutch input, the second clutch plates being non-rotatably but axially slidably coupled to the first clutch output, the second clutch pack having ...

LIMITED SLIP AND/OR LOCKING SPLIT SHAFT DISCONNECT AXLE

An all-wheel drive vehicle drivetrain can include an input member, first and second output members, a planetary differential, a first clutch, and a second clutch. The differential can include an internal gear, a carrier, a sun gear, and a differential gear set. The internal gear can be coupled to the input member to receive input torque about an axis. The carrier can be coupled to the first output for common rotation about the axis. The differential gear set can receive input torque from the internal gear and output differential torque to the carrier and the sun gear. The first clutch can be operable to selectively couple and decouple the sun gear with the second output member for common rotation. The second clutch can be operable to selectively transmit torque between the carrier and the second output member. 1. An all-wheel drive vehicle drivetrain comprising:a input member;a first output member and a second output member; an internal gear disposed about a central axis and drivingly coupled to the input member to receive input torque from the input member;', 'a planet carrier coupled to the first output for common rotation about the central axis, the planet carrier being rotatable relative to the internal gear;', 'a sun gear rotatable about the central axis relative to the internal gear and the planet carrier; and', 'a differential gear set supported by the planet carrier and configured to receive input torque from the internal gear and to output differential torque to the planet carrier and the sun gear;, 'a planetary differential includinga first clutch operable in a first mode wherein the sun gear is rotatable relative to the second output member, and a second mode wherein the first clutch couples the sun gear to the second output member for common rotation about the central axis; anda second clutch operable in a third mode wherein the second clutch does not transmit torque between the planet carrier and the second output member, and a fourth mode wherein the ...

AXLE ASSEMBLY WITH HYDRAULICALLY-OPERATED DISCONNECT MECHANISM AND SPIN-ON HYDRAULIC FILTER

An axle assembly can include a housing defining a reservoir and cylindrical bore open thereto. A clutch can selectively transmit torque between input and output members. A first inlet/outlet of a pump can be in fluid communication with the reservoir and define first threads coaxial with the cylindrical bore. The pump can be configured to pump fluid from the first inlet/outlet to an actuator of the clutch via a second inlet/outlet. The filter can include a base, port, and filter element. The port can define second threads that threadably engage the first threads. The base can be fixedly coupled to the port and include a cylindrical wall coaxial with the second threads. A seal member can form a seal between the cylindrical wall and the cylindrical bore when the first and second threads are engaged. The filter element can be disposed between the reservoir and the first inlet/outlet. 1. An axle assembly comprising:a housing defining a reservoir and a cylindrical bore open to the reservoir;an input member and an output member;a clutch including a hydraulic actuator operable to selectively activate the clutch to selectively transmit rotary power between the input member and the output member;a pump mounted to the housing, the pump including a first inlet/outlet and a second inlet/outlet, the first inlet/outlet being in fluid communication with the reservoir and defining a first set of threads coaxial with the cylindrical bore, the second inlet/outlet being in fluid communication with the actuator, the pump being configured to pump a fluid between the first inlet/outlet and the second inlet/outlet; anda filter including a filter base, a filter port, a filter element, and a seal member, the filter port defining a second set of threads configured to threadably engage the first set of threads, the filter base being fixedly coupled to the filter port and including a cylindrical wall coaxial with the second set of threads, the seal member configured to form a seal between the ...

DUAL PISTON ACTUATOR

A power transmitting component can include a friction clutch, hydraulic ram, and an actuator. The actuator can include first and second pistons, and a resilient member. The resilient member can translate the first piston to provide a high volume of fluid at low pressure to the ram when a pressure in a first chamber is less than a predetermined pressure and the second piston is translated in a first direction. The resilient member can compress between the first and second pistons to permit relative motion between the pistons when the pressure is equal to, or greater than, the predetermined pressure and the second piston is translated in the first direction. The second piston provides a low volume of fluid at high pressure to the ram when pressure in the first chamber is equal to, or greater than, the predetermined pressure and the second piston is translated in the first direction. 1. A power transmitting component comprising:a friction clutch having a plurality of first clutch plates and a plurality of second clutch plates that are interleaved with the first clutch plates;a hydraulic ram coupled to the friction clutch, the hydraulic ram having a ram chamber and a ram piston that is movable in the ram chamber between a first ram position in which the ram piston is retracted relative to the first and second clutch plates, and a second ram position in which the ram piston is extended toward the first and second clutch plates to a greater extent than when the ram piston is in the first position; and a first piston and cylinder, the first piston being received in the first cylinder, the first piston and cylinder defining a first chamber;', 'a second piston and cylinder, the second piston being received in the second cylinder, the second piston and cylinder defining a second chamber in fluid communication with the ram chamber, the second piston defining a fluid passage fluidly coupling the first and second chambers;', 'a valve body being movable between a first valve ...

Axle Assembly

An axle assembly with a housing, a shaft received in the housing, a shaft bearing supporting the shaft for rotation relative to the housing about a shaft axis, a differential assembly, an annular band and a secondary retainer. The shaft bearing has an inner race, which is received on and directly engaged to the shaft, and an outer race that is received on and directly engaged to the axle housing. The differential assembly has an output member that is non-rotatably coupled to the shaft. The annular band is fixedly coupled to the shaft at a location along the axle shaft axis between the inner race and the output member. The secondary retainer is disposed along the axle shaft axis between the annular band and the output member and is configured to limit movement of the annular band along the axle shaft axis in a direction toward the output member. 1. An axle assembly comprising:an axle housing;a shaft received in the axle housing;a shaft bearing supporting the shaft for rotation relative to the housing about an axle shaft axis, the shaft bearing having an inner race, which is received on and directly engaged to the shaft, and an outer race that is received on and directly engaged to the axle housing;a differential assembly having an output member that is non-rotatably coupled to the shaft; andan annular band, which is fixedly coupled to the shaft at a location along the axle shaft axis between the inner race and the output member; anda secondary retainer that is disposed along the axle shaft axis between the annular band and the output member and is configured to limit movement of the annular band along the axle shaft axis in a direction toward the output member.2. The axle assembly of claim 1 , wherein the secondary retainer comprises a retaining ring that is received into a circumferentially extending slot formed in the shaft.3. The axle assembly of claim 1 , wherein the secondary retainer comprises a clip that is coupled to the shaft.4. The axle assembly of claim 3 ...

DISCONNECTABLE DRIVELINE FOR ALL-WHEEL DRIVE VEHICLE

A rear drive module for an all-wheel drive vehicle. The rear drive module includes a disconnect clutch, a differential assembly and a hollow shaft. The disconnect clutch has a first clutch member, which is coupled to the spool for rotation therewith, and a second clutch member. The differential assembly includes a differential case. The hollow shaft is coupled to the differential case for rotation therewith and is configured to transmit rotary power in a power path between the disconnect clutch and the differential assembly. 1. A rear drive module for a drivetrain of an all-wheel drive motor vehicle , the rear drive module comprising:an axle housing;an input pinion rotatably coupled to the axle housing;a spool rotatably coupled to the axle housing;a ring gear coupled to the spool for rotation therewith, the ring gear being meshingly engaged with the input pinion;a disconnect clutch having a first clutch member and a second clutch member, the first clutch member being coupled to the spool for rotation therewith, the disconnect clutch being configured to selectively transmit rotary power between the first and second clutch members;a hollow shaft coupled for rotation with the second clutch member, the hollow shaft being received in the spool;a differential assembly having a differential case and a differential gearset with a pair of differential outputs, the differential case being coupled to the hollow shaft for rotation therewith, the differential gearset being configured to receive rotary power from the differential case and to output rotary power to the differential outputs; anda pair of axle shafts, each axle shaft being coupled to a corresponding one of the differential outputs for rotation therewith.2. The rear drive module of claim 1 , wherein the disconnect clutch is a friction clutch having a clutch pack that is configured to transmit rotary power between the first and second clutch members.3. The rear drive module of claim 1 , wherein a portion of the first ...

CLUTCHED POWER TRANSMITTING DEVICE WITH FILTER ELEMENT

A power transmitting device can include a clutch, filter and housing defining first and second sumps spaced apart by a first wall. First and second members can meshingly engage and rotate through the first sump. The clutch plates can rotate through the second sump. A third member can be drivingly coupled to the second member and clutch plates. An outer surface of the third member and the first wall can define an annular cavity that fluidly couples the sumps. The filter can be received in the annular cavity about the third member and can include a second wall, outer portion, inner portion, and a filter element. The second wall can define an aperture. The outer portion can seal with the first wall. The inner portion can seal with the outer surface. The filter element can span the aperture to permit fluid communication between the sumps and inhibit passage of solids. 1. A power transmitting device comprising:a housing having a first wall, the housing defining a first sump and a second sump spaced apart from the first sump by the first wall;a fluid received in the first and second sumps;a first member received in the housing and configured for rotation relative to the housing;a second member received in the housing and configured for rotation relative to the housing, the second member being meshingly engaged with the first member and configured to rotate through the first sump;a clutch assembly including a plurality of first clutch plates and a plurality of second clutch plates interleaved with the plurality of first clutch plates, the first and second clutch plates being configured to rotate through the second sump;a third member having an outer surface, the third member being drivingly coupled to the second member and the first clutch plates, the outer surface and the first wall defining an annular cavity that fluidly couples the first and second sumps; and a second wall extending radially between the first wall and the outer surface of the third member, the second ...

Single speed and two-speed disconnecting axle arrangements

A driveline component with a housing, a pinion mounted in the housing for rotation about a first axis, a ring gear and a pair of output members. The ring gear is meshed with the pinion and is rotatable about a second axis. The ring gear is supported for rotation relative to the housing by a pair of tapered roller bearings that are disposed along the second axis on a common lateral side of the ring gear. The output members are drivingly coupled to the ring gear.

Axle Assembly

An axle assembly having an input pinion with a pinion gear, which is received in an axle housing and rotatable about a first axis, and a pinion shaft. The pinion gear is meshed with a ring gear that is coupled to a differential assembly. A head bearing, which is disposed on a first axial end of the input pinion, supports the input pinion for rotation relative to the housing about the first axis. A tail bearing supports the input pinion for rotation relative to the housing about the first axis. The pinion gear is disposed axially between the tail bearing and the head bearing. A bearing groove is formed into the pinion shaft and the bearing elements are received into the bearing groove such that an inner bearing race of the tail bearing is unitarily and integrally formed with the pinion shaft. 1. An axle assembly comprising:a housing;an input pinion having a pinion gear and a pinion shaft, the input pinion being received in the housing and being rotatable about a first axis;a ring gear meshed with the pinion gear and rotatable about a second axis that is transverse to the first axis;a differential assembly having a differential case and a pair of output members, the differential case being driven by the ring gear; anda head bearing and a tail bearing for supporting the input pinion for rotation relative to the housing about the first axis, the head bearing being disposed on a first axial end of the input pinion, the tail bearing being a four-point contact ball bearing having a plurality of bearing elements, an inner race and an outer race, the pinion gear being disposed axially between the tail bearing and the head bearing;wherein a bearing groove is formed into the pinion shaft and wherein the bearing elements are received into the bearing groove such that the inner bearing race is unitarily and integrally formed with the pinion shaft.2. The axle assembly of claim 1 , wherein the outer race comprises a first outer race member and a second outer race member that are ...

ELECTRIC DRIVE MODULE

An electric drive unit having a stator, a rotor received in the stator and rotatable about a central longitudinal axis, and an inverter assembly that includes a plurality of power semiconductors, a plurality of heat sinks and an end plate. The power semiconductors are thermally coupled to the heat sinks. Each of the heat sinks has a plurality of fins that extend into a flow channel that is coaxial with the plurality of sets of field windings. The end plate is coupled to the power semiconductors and has a projection, which is sealingly coupled to the stator and which and partly defines an annular cavity, and a coolant port that is coupled in fluid communication with the annular cavity. The flow channel is in fluid communication with and disposed in a flow path between the annular cavity and the cooling channels in the stator body. 1. An electric drive unit comprising:a stator having a stator body and a plurality of sets of field windings, the stator body defining a plurality of cooling channels that extend longitudinally through the stator body, each of the sets of field windings being fixedly coupled to the stator body and being circumferentially spaced apart about a central longitudinal axis;a rotor received in the stator and rotatable about the central longitudinal axis; andan inverter assembly that includes a plurality of power semiconductors, a plurality of heat sinks and an end plate, each of the power semiconductors being thermally coupled to a corresponding one of the heat sinks, each of the heat sinks having a plurality of fins that extend into a flow channel that is coaxial with the plurality of sets of field windings, the end plate being coupled to the power semiconductors and having a projection and a coolant port, the projection being sealingly coupled to the plurality of sets of field windings and partly defining an annular cavity, the coolant port being coupled in fluid communication with the annular cavity, wherein the flow channel is in fluid ...

ELECTRIC DRIVE AXLE WITH TRACTION AND VECTORING CAPABILITIES

A drive module includes an electric motor, planetary differential, first, second, and third suns, first second and third planets, and first and second clutches disposed about an axis. The differential ring can be driven by the motor. The differential sun can be non-rotatably coupled to a first output. The differential carrier can be non-rotatably coupled to a second output. The first, second, and third planets can be supported by a common carrier for rotation about the first axis. The first sun can meshingly engage the first planets. The second sun can be non-rotatably coupled to the first output and meshingly engage the second planets. The third sun can be non-rotatably coupled to the differential carrier and meshingly engaged with the third planets. The first clutch can selectively permit or inhibit rotation of the common carrier. The second clutch can selectively permit or inhibit rotation of the first sun. 1. A drive module for a vehicle , the drive module comprising:a first output member and a second output member, the first and second output members being rotatable about a first axis;an electric motor disposed about the first axis and including a motor output shaft configured to rotate about the first axis;a planetary differential including a differential ring gear, a differential carrier, a differential sun gear, and a plurality of differential planet gears, the differential ring gear being drivingly coupled to the motor output shaft to receive input torque from the motor output shaft, the differential sun gear being coupled to the first output member for common rotation about the first axis, the differential carrier being coupled to the second output member for common rotation about the first axis, the differential planet gears being configured to receive input torque from the differential ring gear and to output differential torque to the differential carrier and the differential sun gear;a common carrier disposed about the first output member and ...

TWO-SPEED DRIVE MODULE

A drive module that includes an electric motor and a multi-speed transmission assembly having a two-speed planetary transmission stage. The multi-speed transmission assembly outputs rotary power to a differential assembly. 1. A drive module comprising:an electric motor;a differential assembly having a differential input member and a pair of differential output members;a multi-speed transmission assembly transmitting rotary power between the electric motor and the differential input member, the multi-speed transmission assembly comprising a housing, a two-speed planetary transmission stage, a first clutch, a second clutch and a transmission output member, the two-speed planetary transmission stage having a sun gear, a ring gear, a plurality of planet gears and a planet carrier, the sun gear being the input of the two-speed planetary stage, the planet gears being meshed with the sun gear and with the ring gear, the planet gears being rotatably mounted on the planet carrier, one of the planet carrier and the ring gear being the output of the two-speed planetary transmission stage and being drivingly coupled to the transmission output member, the first clutch being selectively operable for locking the two-speed planetary transmission stage such that it operates in a 1:1 gear ratio, the second clutch being operable for controlling rotation of the other one of the planet carrier and the ring gear, the transmission output member being meshingly engaged to the differential input member; anda pair of axle shafts, each of the axle shafts being coupled to an associated one of the differential output members for rotation therewith.2. The drive module of claim 1 , wherein the multi-speed transmission assembly further comprises a fixed planetary stage.3. The drive module of claim 2 , wherein the fixed planetary stage is disposed between the electric motor and the sun gear of the two-speed planetary transmission stage.4. The drive module of claim 3 , wherein the fixed planetary ...

Axle Assembly Having An Angular Contact Bearing That Supports A Ring Gear For Rotation On An Axle Housing

An axle assembly that includes a housing, an input pinion, a ring gear, an angular contact bearing, and a differential assembly. The input pinion has a plurality of pinion teeth and is received in the housing for rotation about a first axis. The ring gear, which is received in the housing, is a bevel gear having ring gear teeth that define a pitch angle and are meshingly engaged with the pinion teeth. The angular contact bearing supports the ring gear for rotation on the housing about a second axis that is transverse to the first axis. The angular contact bearing has a first race, which is integrally formed into the ring gear, a second race, and a plurality of bearing balls disposed between the first and second races. The differential assembly has a differential case that is mounted to the ring gear for rotation therewith. 1. An axle assembly comprising:an axle housing;an input pinion received in the axle housing and rotatable about a first axis, the input pinion having a plurality of pinion teeth;a ring gear received in the axle housing, the ring gear being a bevel gear having a plurality of ring gear teeth that are meshingly engaged with the pinion teeth, the ring gear teeth defining a pitch angle;an angular contact bearing supporting the ring gear for rotation on the axle housing about a second axis that is transverse to the first axis, the angular contact bearing having a first race, which is coupled to the ring gear for rotation therewith, a second race, and a plurality of bearing balls disposed between the first and second races; anda differential assembly having a differential case, the differential case being mounted to the ring gear for rotation therewith.2. The axle assembly of claim 1 , wherein the second race comprises a first race member that cooperates with the bearing balls and the first race to define a first contact angle claim 1 , and wherein the first contact angle is within ±15 degrees of being perpendicular to the pitch angle of the ring gear ...

Axle Assembly

An axle assembly having an input pinion with a pinion gear, which is received in an axle housing and rotatable about a first axis, and a pinion shaft. The pinion gear is meshed with a ring gear that is coupled to a differential assembly. A head bearing, which is disposed on a first axial end of the input pinion, supports the input pinion for rotation relative to the housing about the first axis. A tail bearing supports the input pinion for rotation relative to the housing about the first axis. The pinion gear is disposed axially between the tail bearing and the head bearing. A bearing groove is formed into the pinion shaft and the bearing elements are received into the bearing groove such that an inner bearing race of the tail bearing is unitarily and integrally formed with the pinion shaft.

Axle Assembly

An axle assembly having an axle housing, an input pinion, a ring gear, a ring gear bearing, a differential assembly and a pair of axle shafts. The input pinion is mounted to the axle housing for rotation about a first axis. The ring gear is received in the axle housing and meshed with the input pinion. The ring gear bearing supports the ring gear on the axle housing for rotation about a second axis. The ring gear bearing has a bearing race, which is integrally formed with the ring gear, and a plurality of first bearing element that contact the first bearing race. The differential assembly has a differential case, which is coupled to the ring gear for rotation therewith, and a pair of output members. Each axle shaft being coupled for rotation with a corresponding one of the output members.

AXLE ASSEMBLY HAVING RING GEAR WITH UNITARILY AND INTEGRALLY FORMED PORTION OF A BEARING RACE

An axle assembly that includes a housing assembly, an input pinion, a ring gear, a ring gear bearing, and a differential assembly having a differential case. The ring gear bearing supports the ring gear for rotation on the housing assembly as well as handles thrust loads between the ring gear and the housing assembly in opposite axial directions. The ring gear bearing includes an outer bearing race having a first race member, which may be unitarily and integrally formed with the ring gear, and a second race member that is received in a groove formed on the ring gear. The differential case is coupled to the ring gear and secures the second race member to the ring gear. 1. An axle assembly comprising:a housing assembly;an input pinion mounted to the housing assembly for rotation about a first axis;a ring gear received in the housing and meshingly engaged with the input pinion;a ring gear bearing that supports the ring gear for rotation relative to the housing assembly about a second axis, the ring gear bearing having an outer bearing race, an inner bearing race and a plurality of first bearing elements, the outer bearing race comprising a first race member and a second race member, the first race member being unitarily and integrally formed with the ring gear, the second race member being received into a circumferentially extending groove formed in the ring gear, the inner bearing race of the ring gear bearing being abutted against a shoulder formed on the housing assembly that is positioned along the second axis at a location that is between the first axis and the first bearing elements, the first bearing elements being engaged to the inner bearing race and the first and second race members of the outer bearing race; anda differential assembly having a differential case and a pair of output members, the differential case being fixedly coupled to the ring gear such that the second race member of the outer bearing race is disposed along the second axis between the ...

DISCONNECTING DRIVELINE COMPONENT

A driveline component that includes an input member, a differential case, a differential gearset housed in the differential case, a first clutch and a second clutch. The first clutch is configured to selectively transmit rotary power between the input member and the differential case. The second clutch is configured to selectively transmit rotary power between the input member and the differential case. The first clutch has a first engagement time and that is less than a second engagement time of the second clutch. 1. A driveline component comprising:an input member;a differential case;a differential gearset housed in the differential case;a first clutch operable for selectively transmitting rotary power between the input member and the differential case; anda second clutch operable for selectively transmitting rotary power between the input member and the differential case;wherein the first clutch has a first engagement time and wherein the second clutch has a second engagement time that is greater than the first engagement time.2. The driveline component of claim 1 , wherein the first clutch has a first torque capacity that is less than a second torque capacity of the second clutch.3. The driveline component of claim 1 , wherein the first clutch comprises a ball-ramp actuator.4. The driveline component of claim 3 , wherein the ball ramp actuator includes an electromagnet coil that is selectively operable for generating a magnetic field for engaging the first clutch.5. The driveline component of claim 1 , wherein the second clutch comprises a plurality of first clutch plates interleaved with a plurality of second clutch plates.6. The driveline component of claim 5 , wherein the first clutch comprises a plurality of third clutch plates interleaved with a plurality of fourth clutch plates.7. The driveline component of claim 6 , wherein the first clutch plates are greater in number than the third clutch plates.8. The driveline component of claim 1 , wherein the input ...

ELECTRIC DRIVE MODULE HAVING MOTOR WITH HEAT SINK INSERT IN ROTOR SHAFT

A motor drive system with a rotor assembly having an insert, which is received into a blind hollow rotor space in a shaft, a coolant inlet and a coolant outlet. The insert has an insert body, a first flow passage and a plurality of second flow passages. The insert body has an outer insert surface that is engaged to an inside surface of a shaft wall of the shaft. The first flow passage extends longitudinally through the insert body. The second flow passages extend longitudinally through the insert body radially between the outer insert surface and the first flow passage. The coolant inlet is fluidly coupled to one of the first and second flow passages, while the coolant outlet is fluidly coupled to the other one of the first and second flow passages. 1. A motor drive system comprising:an electric motor having a stator and a rotor assembly that is received in the stator and rotatable about a rotational axis, the rotor assembly having a rotor shaft and a means for circulating a cooling fluid in the rotor shaft, the rotor shaft having a shaft wall that is disposed circumferentially about the rotational axis, the shaft wall defining a hollow rotor space, the cooling fluid circulating means being received in the hollow rotor space and being fixedly coupled to the shaft wall, the cooling fluid circulating means having a first flow passage, which is disposed along the rotational axis, and a plurality of second flow passages that are disposed radially between the first flow passage and the shaft wall.2. The motor drive system of claim 1 , wherein the cooling fluid circulating means comprises a central tube claim 1 , a plurality of fin sets and an outer tube claim 1 , the central tube defining the first flow passage claim 1 , the outer tube being disposed concentrically about the central tube claim 1 , the fin sets being fixedly coupled to an outside surface of the central tube claim 1 , each of the fin sets having a plurality of fin members that extend radially outwardly ...

Axle Assembly With Inboard Axle Shaft Bearings That Support A Differential Mechanism

An axle assembly having a housing, a ring gear received in the housing, a ring gear bearing, a pair of shafts, a differential mechanism and a pair of inboard bearings. The ring gear bearing contacts the housing and the ring gear to support the ring gear for rotation about an axis. The shafts are received in the housing and rotate about the axis. Each of the shafts has a bearing mount and a male splined segment. The differential mechanism has a pair of output members, each of which having a splined internal aperture into which the male splined segment of one of the shafts is slidably received. Each shaft bearing is disposed on the bearing mount of one of the axle shafts and supports the shafts for rotation on the housing. The differential mechanism is supported for rotation about the axis by the ring gear bearing and the inboard bearings. 1. An axle assembly comprising:a housing;a ring gear received in the housing;a ring gear bearing contacting the housing and the ring gear, the ring gear bearing supporting the ring gear for rotation about an axis relative to the housing;a pair of axle shafts received in the housing and rotatable about the axis, each of the axle shafts having an end with a bearing mount and a male splined segment;a differential mechanism having a pair of output members, each of the output members having a splined internal aperture into which the male splined segment of one of the axle shafts is slidably received; anda pair of inboard axle shaft bearings, each inboard axle shaft bearing being disposed on the bearing mount of a corresponding one of the axle shafts and supporting the corresponding one of the axle shafts for rotation on the housing;wherein the differential mechanism is supported for rotation about the axis by the ring gear bearing and the inboard axle shaft bearings.2. The axle assembly of claim 1 , further comprising a pair of first retention mechanisms claim 1 , each first retention mechanism being coupled to an associated one of the ...

Disconnecting Axle Assembly

An axle assembly having an axle housing assembly having a carrier housing and first and second end caps that are mounted to the carrier housing. The first end cap cooperates with the carrier housing to define a differential cavity for receipt of a differential assembly, while the second end cap cooperates with the carrier housing to define a clutch cavity for receipt of a clutch. A spindle drivingly couples a first output of the differential with an input of the clutch member. A first output member is coupled for rotation with a second output of the differential and a second output member is coupled for rotation with an output of the clutch. The spindle is received through a tubular portion of carrier housing. 1. An axle assembly comprising:an axle housing assembly having a carrier housing and first and second end caps that are mounted to the carrier housing, the first end cap cooperating with the carrier housing to define a differential cavity, the second end cap cooperating with the carrier housing to define a clutch cavity;an input pinion extending into the differential cavity;a ring gear in the differential cavity and meshingly engaged with the input pinion, the ring gear being supported for rotation about a second axis by a four-point angular contact bearing;a differential assembly received in the differential cavity and configured to receive rotary power from the ring gear, the differential assembly having a first differential output and a second differential output;a clutch having a first clutch member and a second clutch member, the clutch being configured to selectively transmit rotary power between the first and second clutch members, the clutch being received in the clutch cavity;a spindle drivingly coupling the first differential output with the first clutch member, the spindle being received through a tubular portion of carrier housing; anda first and second output members, the first output member being coupled for rotation with the first differential ...

DISCONNECTABLE DRIVELINE FOR ALL-WHEEL DRIVE VEHICLE

A vehicle driveline that includes a differential assembly, a two-speed transmission, a power take-off unit, a range sleeve, a mode sleeve and an input shaft. The range sleeve is non-rotatably but axially slidably coupled to the input shaft. The range sleeve provides rotary power to the two-speed transmission and is movable into different positions to control the gear ratio in which the two-speed transmission operates. The two-speed transmission outputs rotary power to the differential assembly. The mode sleeve is selectively movable into a position where it transmits rotary power between the range sleeve and a PTU input of the power-take off unit. Movement of the range and mode sleeves can be coordinated to provide a two-wheel drive high speed mode, a four-wheel drive high speed mode and a four-wheel drive low speed mode. 1. A vehicle driveline comprising:an input shaft rotatable about a first axis;a range sleeve that is concentric with the input shaft, the range sleeve being non-rotatably but slidably coupled to the input shaft and movable along the first axis between a first range sleeve position and a second range sleeve position;a mode sleeve that is concentric with the input shaft, the mode sleeve being slidable along the first axis between a first mode sleeve position and a second mode sleeve position;a planetary transmission having a planet carrier, a sun gear and a plurality of planet gears that are rotatably mounted on the planet carrier and meshingly engaged to the sun gear;a differential assembly having a differential case and a differential gearset, the differential case being coupled to the planet carrier for common rotation about the first axis, the differential gearset being disposed in the differential case and including a pair of differential output members;an axle shaft coupled for rotation with one of the differential output members, the axle shaft extending through the sun gear and the input shaft; anda power transfer unit having a PTU input and ...

Two-speed drive module

A drive module that includes an electric motor and a multi-speed transmission assembly having a two-speed planetary transmission stage. The multi-speed transmission assembly outputs rotary power to a differential assembly.

CLUTCH ASSEMBLY WITH FLUID EVACUATION

A clutched device can include a differential, a clutch, and a gate. The differential can transmit torque between an input member and first and second output members. A housing can define a sump and a reservoir spaced apart from the sump. A first aperture open to the sump and reservoir can be above a static fluid level of the sump. A second aperture can couple the sump and reservoir below the static fluid level. An outer clutch plate carrier can rotate through the sump and sling fluid through the first aperture. The outer carrier can be coupled for rotation with the second output member and an inner clutch plate carrier can be coupled to a third output member. The gate can be movable between first and second positions. In the first position the gate can block the second aperture. In the second position the second aperture can be open. 1. A clutched device comprising:an input member configured to receive rotational power and rotate about a first axis;a first output member, a second output member, and a third output member, the first, second, and third output members configured to rotate about a second axis that is transverse to the first axis;a differential including a differential case and a differential gearset, the differential case being drivingly coupled to the input member, the differential gearset being configured to transmit rotary power between the differential case and the first and second output members;a lubricant fluid;a housing having an inner wall disposed about the second axis, the housing defining a clutch sump and a reservoir, the lubricant fluid being received in the clutch sump and the reservoir being spaced apart from the clutch sump by the inner wall, the inner wall defining a first aperture and a second aperture the first aperture being open to the clutch sump and the reservoir, the second aperture spaced apart from the first aperture and fluidly coupling the clutch sump and the reservoir;a clutch assembly including an inner carrier, an outer ...

DISCONNECTABLE DRIVELINE FOR ALL-WHEEL DRIVE VEHICLE

A disconnectable driveline arrangement for an all-wheel drive vehicle includes a power take-off unit having a dog clutch disconnect mechanism that is configured to selectively couple an input spindle and a spool on which a ring gear is mounted. 1. A drivetrain for an all-wheel drive motor vehicle , the drivetrain comprising:a differential input that is rotatable about a first axis;a differential assembly having a differential case and a differential gearset, the differential case being coupled to the differential input for common rotation about the first axis, the differential gearset being housing in the differential case and being configured to receive rotary power therefrom, the differential gearset having a pair of differential output members;a power take-off unit (PTU) having an input spindle, a spool, a ring gear, and a dog clutch, the input spindle being coupled to the differential case for common rotation about the first axis, the spool being disposed concentrically about the input spindle, the ring gear being fixedly coupled to the spool, the dog clutch having first and second dog members, the first dog member having a first set of dog teeth that are disposed circumferentially about the first axis, the first dog member being fixedly coupled to one of the spool and the input spindle, the second dog member having a second set of dog teeth that are disposed circumferentially about the first axis, the second dog member being non-rotatably but axially slidably coupled to the other one of the spool and the input spindle, the second dog member being movable along the first axis between a first position, in which the second set of dog teeth are disengaged from the first set of dog teeth to thereby inhibit transmission of rotary power between the input spindle and the spool, and a second position, in which the second set of dog teeth are engaged to the first set of dog teeth to thereby permit transmission of rotary power between the input spindle and the spool; anda ...

Planetary unit having planet carrier with pins fixedly and non-rotatably mounted to carrier body

A planetary transmission having a planet carrier with a carrier body and a plurality of carrier pins. The carrier body includes a pair of carrier plates, each of which having pin bosses that extend outwardly from a remaining portion of the carrier plate. The pin bosses on at least one of the carrier plates define an exterior surface with at least one step so that portions of the exterior surface of the pin bosses are spaced apart in an axial direction. The carrier pins have an axial ends with recesses formed therein such that each axial end of each carrier pin terminates in a thin wall section. The carrier pins are received through the carrier plates and the thin wall sections are deformed against the exterior surfaces of the pin bosses to retain the carrier pins to the carrier body.

DISCONNECTABLE AXLE ASSEMBLY HAVING A PLANETARY DIFFERENTIAL

A disconnecting axle assembly with a planetary differential assembly and a coupling that selectively couples a planet carrier of the planetary differential assembly to an axle shaft. 1. An axle assembly comprising:an housing assembly;an input pinion mounted to the housing assembly for rotation about a first axis;a ring gear mounted to the housing assembly for rotation about a second axis that is not parallel to the first axis;a differential assembly having an internal gear, a planet carrier, a plurality of planet gears, and a sun gear, the internal gear being coupled to the ring gear for rotation therewith, the planet carrier having a carrier body and a plurality of carrier pins that are fixedly coupled to the carrier body, each of the planet gears being journally mounted on a corresponding one of the carrier pins, at least a first portion of the planet gears being meshed with the internal gear, at least a second portion of the planet gears being meshed with the sun gear;a first output member;a second output member coupled to the sun gear for rotation therewith; anda clutch that is operable for selectively coupling the first output member to the carrier body.2. The axle assembly of claim 1 , wherein the clutch comprises a coupling member that is axially slidably mounted on the first output member.3. The axle assembly of claim 2 , wherein the carrier body has a first set of external teeth claim 2 , wherein the first output member has a second set of external teeth claim 2 , and wherein the coupling member has at least one set of internal teeth that are engageable to the first and second sets of external teeth.4. The axle assembly of claim 3 , wherein the coupling member is movable along the second axis between a first position claim 3 , in which the at least one set of internal teeth are engaged to both the first and second sets of external teeth claim 3 , and a second position in which the at least one set of internal teeth are disengaged from the first set of ...

ALL-WHEEL DRIVE DRIVELINE WITH FRONT LIMITED SLIP DIFFERENTIAL

An AWD system can include a differential, a PTU, and a friction clutch. A differential input can receive torque from the powertrain and rotate about a first axis. First and second differential outputs can rotate about the first axis. A third output can be drivingly coupled to the differential input and rotatable about a second axis transverse to the first axis. The clutch can include first friction members, second friction members, and an actuator. The first friction members can be coupled to the differential input for common rotation. The second friction members can be coupled to the second differential output for common rotation. The actuator can selectively engage the first friction members with the second friction members. The secondary driveline can include a second input member coupled to the third output to receive rotary power therefrom. The second driveline can distribute rotary power for driving the second set of wheels. 1. An all-wheel drive system for a motor vehicle , the motor vehicle having a powertrain , a first set of wheels and a second set of wheels , the all-wheel drive system comprising:a primary driveline including a differential, the differential including a differential input member, a first output member, and a second output member, the differential input member being adapted to receive torque from the powertrain and rotate about a first axis, the first and second output members being rotatable about the first axis and drivingly coupled to the first set of wheels, the differential being configured to output differential torque to the first and second output members; a third output member being rotatable about a second axis that is transverse to the first axis and drivingly coupled to the differential input member to receive torque therefrom;', 'a friction clutch including a plurality of first friction members and a plurality of second friction members, the first friction members being coupled to the differential input member for common ...

TWO-SPEED DRIVE MODULE

A drive module with a hydraulic circuit that includes a reversible motor, a reversible pump driven by the reversible motor, a hydraulic reservoir, a first conduit coupling a first inlet/outlet of the reversible pump to the hydraulic reservoir, a second conduit coupling a second inlet/outlet of the reversible pump to the hydraulic reservoir, first and second hydraulic cylinders, and first and second one-way valves. The first hydraulic cylinder has a third inlet/outlet that is coupled to the first conduit between the reversible pump and the hydraulic reservoir. The second hydraulic cylinder has a fourth inlet/outlet that is coupled to the second conduit between the reversible pump and the hydraulic reservoir. The first one-way valve is disposed in the first hydraulic conduit between the first hydraulic cylinder and the reservoir. The second one-way valve is disposed in the second hydraulic conduit between the second hydraulic cylinder and the reservoir. 1. A drive module comprising: a reversible motor;', 'a reversible pump driven by the reversible motor, the reversible pump having a first inlet/outlet and a second inlet/outlet;', 'a hydraulic reservoir;', 'a first conduit coupling the first inlet/outlet to the hydraulic reservoir;', 'a second conduit coupling the second inlet/outlet to the hydraulic reservoir;', 'a first hydraulic cylinder having a third inlet/outlet, the third inlet/outlet being coupled to the first conduit between the reversible pump and the hydraulic reservoir;', 'a second hydraulic cylinder having a fourth inlet/outlet, the fourth inlet/outlet being coupled to the second conduit between the reversible pump and the hydraulic reservoir;', 'a first one-way valve disposed in the first hydraulic conduit between the first hydraulic cylinder and the reservoir; and', 'a second one-way valve disposed in the second hydraulic conduit between the second hydraulic cylinder and the reservoir., 'a hydraulic circuit that includes2. The drive module of claim 1 , ...

MODULAR DISCONNECTING DRIVE MODULE WITH TORQUE VECTORING AUGMENTATION

A drive module having a housing, an input pinion, a ring gear driven by the input pinion, a ring gear bearing supporting the ring gear for rotation relative to the housing, a pair of output shafts and a clutch that selectively transmits rotary power between the ring gear and the output shafts. The clutch includes a clutch input, which is rotatably coupled to the ring gear, a clutch plate separator that is rotatably coupled to the clutch input, a pair of clutch outputs, which are each coupled to a respective one of the output shafts, a pair of clutch packs, which transmit rotary power between the clutch input and a respective one of the clutch outputs, and a pair of apply pistons. The apply pistons are housed in the clutch plate separator. 1. A drive module comprising:a housing defining a central cavity, an input axis and an output axis that is transverse to the input axis;an input pinion received in the central cavity and rotatable about the input axis;a ring gear received in the central cavity and meshed with the input pinion, the ring gear having a plurality of teeth and a toe, the toe being located at a radially inner end of the teeth;a clutch received in the central cavity, the clutch having a clutch input, which is coupled to the ring gear for rotation therewith, first and second clutch outputs, which are rotatable about the output axis, a clutch pack separator, which is disposed along the output axis between the first and second clutch outputs, and first and second clutch packs, the clutch pack separator being disposed along the output axis between the first and second clutch packs and being coupled to the clutch input for rotation therewith, the first clutch pack having first and second clutch plates that are interleaved together, the first clutch plates being non-rotatably but axially slidably coupled to the clutch input, the second clutch plates being non-rotatably but axially slidably coupled to the first clutch output, the second clutch pack having third ...

Locking differential including access windows for c-clip retainers

A locking differential includes a housing containing a chamber and a pair of opposed openings for receiving a pair of axially spaced output shafts, respectively, a pair of side gears adapted for non-rotatable connection with the respective output shafts, concentrically arranged annular center driver gear and center cam members arranged coaxially about the adjacent ends of the output shafts, and annular clutch members operable by the center cam member to disconnect an overrunning output shaft, characterized in that the center driver gear and center cam members contain radially extending access openings to permit manual mounting of C-clip retainers in peripheral grooves contained in the adjacent ends of the output shafts.

LOCK DIFFERENTIAL INCLUDING SHAFT RETAINING ELEMENTS

Un différentiel de verrouillage inclut un boîtier (2) contenant une chambre et une paire d'orifices opposés pour recevoir une paire d'arbres de sortie espacées axialement, respectivement, une paire de moyeux d'engrenage latéraux (18, 20) reliés sans rotation avec les arbres de sortie respectivement, un élément d'engrenage menant central annulaire (26) et un élément de came central (30) disposés coaxialement aux extrémités adjacentes des arbres de sortie, et des éléments d'embrayage annulaires (22, 24) actionnés par l'élément de came pour déconnecter l'arbre de sortie en survitesse. Des lumières d'accès s'étendant radialement sont ménagées dans l'élément de came central (30) et l'élément d'engrenage menant central (26) pour permettre un montage manuel d'éléments de retenue en C (50, 52) montés dans des gorges périphériques (54, 56) pratiquées dans les extrémités adjacentes des arbres de sortie. A locking differential includes a housing (2) containing a chamber and a pair of opposing ports for receiving a pair of axially spaced output shafts, respectively, a pair of side gear hubs (18, 20) connected without rotation with the output shafts respectively, an annular central drive gear member (26) and a central cam member (30) disposed coaxially with adjacent ends of the output shafts, and actuated annular clutch members (22, 24) by the cam element to disconnect the output shaft in overspeed. Radially extending access ports are provided in the central cam member (30) and the central drive gear member (26) to allow manual mounting of C-shaped retainers (50, 52). mounted in peripheral grooves (54, 56) formed in the adjacent ends of the output shafts.

Helical gear differential

Electric drive unit with a exchanger that is formed by disks having a disk spring portion and which are received into a bore in a rotor shaft of an electric motor

An electric drive unit that includes an electric motor having a rotor with a rotor shaft and a heat exchanger that is received in the rotor shaft. The heat exchanger has a plurality of heat exchanger plates, each of which having a hub, a rim member, and disc spring portion that interconnects the hub and the rib member. Each disk spring portion defines a plurality of coolant apertures. The heat exchanger plates are press-fit to the rotor shaft such that each disc spring portion is deflected from a pre-installation state, and each rim member is engaged to an interior surface of the rotor shaft while being spaced apart from adjacent rim members along a rotational axis of the rotor. A first coolant passage is disposed through the hubs of the plates. The coolant apertures in the heat exchanger plates cooperate to form a plurality of second coolant passages.

Dual piston actuator

An actuator assembly can include a housing, first and second pistons, and spring. The housing can include first and second cylinders disposed about an axis. The first piston and cylinder can define a first chamber in fluid communication with an inlet. The second piston and cylinder can define a second chamber in fluid communication with an outlet. Opposite ends of the spring can be coupled for axial translation with the first and second piston, respectively. The spring can translate the first piston to provide high volume, low pressure fluid to the outlet when a pressure in the first chamber is less than a predetermined pressure. When the pressure in the first chamber is equal to, or greater than, the predetermined pressure and the second piston is translated in the first axial direction, the spring can compress and the second piston can provide low volume, high pressure fluid to the outlet.

Single speed and two-speed disconnecting axle arrangements

A driveline component with a housing, a pinion mounted in the housing for rotation about a first axis, a ring gear and a pair of output members. The ring gear is meshed with the pinion and is rotatable about a second axis. The ring gear is supported for rotation relative to the housing by a pair of tapered roller bearings that are disposed along the second axis on a common lateral side of the ring gear. The output members are drivingly coupled to the ring gear.

Locking differential including access windows for C-clip retainers

A locking differential includes a housing containing a chamber and a pair of opposed openings for receiving a pair of axially spaced output shafts, respectively, a pair of side gears adapted for non-rotatable connection with the respective output shafts, concentrically arranged annular center driver gear and center cam members arranged coaxially about the adjacent ends of the output shafts, and annular clutch members operable by the center cam member to disconnect an overrunning output shaft, characterized in that the center driver gear and center cam members contain radially extending access openings to permit manual mounting of C-clip retainers in peripheral grooves contained in the adjacent ends of the output shafts.

Disconnecting rear drive axle for longitudinally arranged powertrains

A powertrain with a disconnecting rear drive axle generally includes a prime mover including an output that rotates about a rotational axis. A transmission includes an output that rotates about a rotational axis. The rotational axes of the outputs are substantially parallel to a longitudinal axis of the powertrain. A front driveline is operable to direct rotary power from the prime mover to front vehicle wheels. A rear driveline includes a propeller shaft that provides rotary power to a first shaft member and a second shaft member through a pinion and a ring gear. The first shaft member and the second shaft are operable to connect to rear vehicle wheels. A power switching mechanism has an engaged condition and a disengaged condition. The power switching mechanism is operable to direct the rotary power from the transmission to the rear driveline in the engaged condition. A torque transfer device has an engaged condition and a disengaged condition. The power switching mechanism and the torque transfer device in the disengaged condition are operable to only transmit rotary power to the first vehicle wheels. The torque transfer device in the disengaged condition prevents the first shaft member and the second shaft member from back-driving the ring gear and the pinion of the rear driveline. The power switching mechanism in the disengaged condition prevents the transmission from driving the propeller shaft.

Axle assembly with separating coupling

Achsbaugruppe (10), umfassend:eine Achsgehäusebaugruppe (12) mit einem Trägergehäuse (30; 30') und ersten und zweiten Endkappen (64, 66; 64', 66'), die an das Trägergehäuse (30; 30') montiert sind, wobei die zweite Endkappe (66; 66') mit dem Trägergehäuse (30, 30') zusammenwirkt, um einen Differentialhohlraum (72) zu definieren, wobei die erste Endkappe (64; 64') mit dem Trägergehäuse (30; 30') zusammenwirkt, um einen Kupplungshohlraum (70) zu definieren;ein Antriebsritzel (14), das sich in den Differentialhohlraum (72) erstreckt;ein Hohlrad (16) in dem Differentialhohlraum (72) und mit dem Antriebsritzel (14) kämmend in Eingriff gebracht, wobei das Hohlrad (16) zur Drehung um eine zweite Achse (52) durch ein Vierpunkt-Schräglager (50) gelagert ist;eine Differentialbaugruppe (18), aufgenommen in dem Differentialhohlraum (72) und konfiguriert, um Drehkraft von dem Hohlrad (16) aufzunehmen, wobei die Differentialbaugruppe (18) einen ersten Differentialausgang und einen zweiten Differentialausgang hat;eine Kupplung (20) mit einem ersten Kupplungselement und einem zweiten Kupplungselement, wobei die Kupplung (20) konfiguriert ist, um Drehkraft zwischen dem ersten und dem zweiten Kupplungselement selektiv zu übertragen, wobei die Kupplung (20) in dem Kupplungshohlraum (70) aufgenommen ist;eine Spindel (136), die den zweiten Differentialausgang antriebsmäßig mit dem ersten Kupplungselement kuppelt, wobei die Spindel (136) durch einen röhrenförmigen Teil (60) des Trägergehäuses (30; 30') aufgenommen ist; undein erstes und zweites Ausgangselement (22, 24), wobei das zweite Ausgangselement (24) zur Drehung mit dem ersten Differentialausgang gekuppelt ist, wobei das erste Ausgangselement (22) zur Drehung mit dem zweiten Kupplungselement gekuppelt ist, undwobei das Vierpunkt-Schräglager (50) an den röhrenförmigen Teil (60) des Trägergehäuses (30; 30') montiert ist. An axle assembly (10) comprising: an axle housing assembly (12) having a ...

Helical gear differential

Spacer pin arrangement for helical gear differential

An axle assembly that includes a differential case which is rotatable about an axis, a pair of side gears that are disposed within the differential case, a spacer ring and a cross pin. The spacer ring is disposed between the side gears. The cross pin is fixed to one of the differential case and the spacer ring and extends through the spacer ring. The aperture in the spacer that receives the cross pin may be larger than the cross pin so that the spacer ring can control end play of the side gears independently of the cross pin.

Locking differential including improved clutch member and adapter sleeve

A locking differential includes a pair of annular coaxially-arranged axially-spaced clutch members (48) having adjacent faces that contain cam gooves (50) that receive a driving cross pin (44), cooperating locking lugs (78) and grooves (80) being provided on the adjacent faces of the clutch members for preventing relative rotation therebetween. The cross pin (44) extends diametrically across a supporting sleeve (40) that is non-rotatably mounted concentrically within the central chamber of the cylindrical housing of the differential, thereby permitting the differential to be retrofit into various differential casings.

Fully-locking torque-proportioning differential

A fully-locking torque-responsive differential includes an annular coupling device arranged concentrically between an axially-extending hub portion on one side gear and the wall surface of the carrier bore in which the side gear is rotatably mounted. An axially-displaceable trigger pin is operable externally of the differential housing in which the carrier is rotatably mounted between first and second positions in which the coupling device is unlocked and locked, respectively. The trigger pin may be operated either automatically or manually by the vehicle operator, use being made of an electrical, hydraulic, pneumatic or cable-operated linear shifting member that extends through a sealed opening contained in the differential housing.

Electric drive module

An electric drive module having a motor and an inverter that are disposed in a housing The motor includes a stator, which has a plurality of sets of windings. The inverter has a plurality of power semiconductors, which are mounted into a retaining member, an end plate, which is sealingly coupled to the retaining member, and an inlet port that extends through the end plate. Sets of the semiconductor devices are electrically coupled to corresponding sets of the windings. Power terminals on the semiconductor devices are coupled to a heat sink. Fins on the heat sinks extend into an annular region that is adjacent to axial ends of the windings. At least one of the retaining member and the end plate is sealingly coupled to the housing assembly. The inlet port, the annular region and cooling passages in the stator are coupled in fluid communication.

Helical gear differential

A differential assembly (26) for a vehicle includes a differential casing (40) rotatable about an axis. A pair of side gears (68a,68b) are disposed within the differential casing (40). A first, second, third and fourth pair of pinion bores are formed in the differential casing. A first, second, third and fourth pair of pinion gears (100a,100b,102a,102b,104a,104b,106a,106b) are slidably and rotatably disposed in the first, second, third and fourth pair of pinion bores (110a,110b,112a,112b,114a,114b,116a,116b) respectively. A window opening (124) is formed in the differential casing (40) between the first (100) and fourth pair (106) of pinion gears. The second pair of pinion bores (112) are radially offset an equivalent distance from the first (110) and third pair (114) of pinion bores. The third pair (114) of pinion bores are radially offset an equivalent distance from the second (112) and the fourth pair (116) of pinion bores. The differential assembly (26) incorporates a cross pin adapted to limit inward movement of a pair of axle shafts and a spacer adapted to limit inward movement of the side gears.

Pre-load mechanism for helical gear differential

A differential assembly for a vehicle includes a differential casing rotatable about an axis. The differential casing defines a cavity. A pair of side gears is disposed within the differential casing cavity. First and second pairs of pinion gears are rotatably positioned in the cavity in driving engagement with the side gears. A thrust block has circumferentially spaced apart recesses. Rotation of the thrust block is restricted by the first and second pairs of pinion gears being in communication with the recesses. A spring biases the thrust block into engagement with one of the side gears.

Planetary unit having planet carrier with pins fixedly and non-rotatably mounted to carrier body

Axleshaft retention assembly for differentials and method of assembly

A differential assembly includes a differential housing defining a chamber and a pair of aligned openings communicating with the chamber. A pair of output shafts extend through the openings in the differential housing and include end segments located within the chamber. A pair of side gears are positioned within the chamber and fixed to the end segments of the output shaft. Paired sets of pinions are rotatably mounted within the differential housing and placed in meshed engagement with each other and with one of the side gears. A retention assembly interconnects the end segments and includes a spacer having a web positioned between and walls partially encompassing the end segments. The retention assembly includes a ring surrounding the spacer to selectively retain and allow removal of clips engaged with the end segments.

ELECTRIC DRIVE MODULE WITH A TRANSMISSION HAVING PAIRS OF PARALLEL DOUBLE GEARS SHARING THE LOAD TO A FINAL DRIVE GEAR

Ein elektrisches Antriebsmodul umfasst einen Elektromotor, eine Differenzialanordnung und ein Getriebe, das Drehkraft zwischen dem Elektromotor und der Differenzialanordnung überträgt. Das Getriebe hat eine erste und eine zweite Untersetzung. Die erste Untersetzung weist ein Antriebszahnrad, das um eine erste Achse drehbar ist, und ein Paar erster Untersetzungszahnräder, die jeweils mit dem Antriebszahnrad in Kämmeingriff stehen und um eine jeweilige zweite Achse drehbar sind, auf. Die zweiten Achsen sind voneinander beabstandet und sind parallel zur ersten Achse. Die zweite Untersetzung weist ein angetriebenes Zahnrad und ein Paar zweiter Untersetzungszahnräder auf. Das angetriebene Zahnrad ist um eine dritte Achse, die zu der ersten Achse parallel ist, drehbar. Jedes der zweiten Untersetzungszahnräder steht mit dem angetriebenen Zahnrad in Kämmeingriff und ist mit einem zugeordneten der ersten Untersetzungszahnräder nicht drehbar gekoppelt. An electric drive module includes an electric motor, a differential assembly, and a transmission that transmits rotary power between the electric motor and the differential assembly. The gearbox has a first and a second reduction. The first reduction gear includes a drive gear rotatable about a first axis and a pair of first reduction gears each meshed with the drive gear and rotatable about a respective second axis. The second axes are spaced apart and are parallel to the first axis. The second reduction gear includes a driven gear and a pair of second reduction gears. The driven gear is rotatable about a third axis parallel to the first axis. Each of the second reduction gears meshes with the driven gear and is non-rotatably coupled to an associated one of the first reduction gears.

Electronically-controlled hydraulically-actuated coupling

A power transmission device includes a friction clutch operable to selectively transfer torque between an input member and an output member. An actuator is operable to provide an actuating force to the friction clutch. The actuator includes an electric motor having an output shaft drivingly coupled to a pump. The pump is operable to provide pressurized fluid to a piston acting on the friction clutch.

Electric drive module with transmission having parallel twin gear pairs sharing load to a final drive gear

An electric drive unit include a housing, a motor coupled to the housing, a transmission and an output gear received in the housing, and a differential assembly. The motor has a motor output shaft rotatable about a motor axis. The transmission has an input pinion and a pair of first compound gears. The input pinion is coupled to the motor output shaft for rotation therewith. Each of the first compound gears is rotatable about a first intermediate axis parallel to the motor axis, has a first gear meshingly engaged with the input pinion, and a second gear coupled to the first gear for rotation therewith. The output gear is driven by the transmission and is rotatable about an output axis. The differential assembly has a differential input member and a pair of differential output members. The differential input member is coupled to the output gear for rotation therewith. Each of the differential output members is rotatable relative to the differential input member about the output axis.

Electric drive module with transmission having parallel twin gear pairs sharing load to a final drive gear

An electric drive module that includes an electric motor, a differential assembly, and a transmission that transmits rotary power between the electric motor and the differential assembly. The transmission has first and second reductions. The first reduction has a drive gear, which is rotatable about a first axis, and a pair of first reduction gears that are each meshingly engaged to the drive gear rotatable about a respective second axis. The second axes are spaced apart from one another and are parallel to the first axis. The second reduction has a driven gear and a pair of second reduction gears. The driven gear is rotatable about a third axis that is parallel to the first axis. Each of the second reduction gears is being meshingly engaged to the driven gear and non-rotatably coupled to an associated one of the first reduction gears.

Differential gear with clav access window

Disconnecting electric drive unit

An electric drive unit has a differential assembly and an actuator. The differential assembly comprises a differential case, a differential gearset, and first and second differential output members, wherein the second differential output member is configured to move between a first position and a second position. The actuator has an actuator fork that engages an actuation flange, wherein the actuation flange is moved by the actuator.

Electric drive unit with a heat exchanger that is formed by disks having a disk spring portion and which are received into a bore in a rotor shaft of an electric motor

An electric drive unit that includes an electric motor having a rotor with a rotor shaft and a heat exchanger that is received in the rotor shaft. The heat exchanger has a plurality of heat exchanger plates, each of which having a hub, a rim member, and disc spring portion that interconnects the hub and the rib member. Each disk spring portion defines a plurality of coolant apertures. The heat exchanger plates are press-fit to the rotor shaft such that each disc spring portion is deflected from a pre-installation state, and each rim member is engaged to an interior surface of the rotor shaft while being spaced apart from adjacent rim members along a rotational axis of the rotor. A first coolant passage is disposed through the hubs of the plates. The coolant apertures in the heat exchanger plates cooperate to form a plurality of second coolant passages.

Electric drive module configured as a beam axle

An electrically-operated electric drive module for use in a vehicle framework that is configured for a powertrain that includes an internal combustion engine. The electrically-operated electric drive module permits the vehicle to be converted to an electrically propelled vehicle in a manner that is cost-effective and which is relatively low in weight.

Disconnecting electric drive unit

An electric drive unit has a differential assembly and an actuator. The differential assembly comprises a differential case, a differential gearset, and first and second differential output members, wherein the second differential output member is configured to move between a first position and a second position. The actuator has an actuator fork that engages an actuation flange, wherein the actuation flange is moved by the actuator.

Electric drive unit with a heat exchanger that is formed by disks having a disk spring portion and which are received into a bore in a rotor shaft of an electric motor

An electric drive unit that includes an electric motor having a rotor with a rotor shaft and a heat exchanger that is received in the rotor shaft. The heat exchanger has a plurality of heat exchanger plates, each of which having a hub, a rim member, and disc spring portion that interconnects the hub and the rib member. Each disk spring portion defines a plurality of coolant apertures. The heat exchanger plates are press-fit to the rotor shaft such that each disc spring portion is deflected from a pre-installation state, and each rim member is engaged to an interior surface of the rotor shaft while being spaced apart from adjacent rim members along a rotational axis of the rotor. A first coolant passage is disposed through the hubs of the plates. The coolant apertures in the heat exchanger plates cooperate to form a plurality of second coolant passages.

Modulo de accionamiento electrico con transmision que tiene pares de engranajes gemelos paralelos que comparten la carga con un engranaje de accionamiento final.

Un módulo de accionamiento eléctrico que incluye un motor eléctrico, un ensamble diferencial y una transmisión que transmite la potencia rotativa entre el motor eléctrico y el ensamble diferencial. La transmisión tiene primera y segunda reducciones. La primera reducción tiene un engrane o engranaje de accionamiento, que es giratorio o rotacional alrededor de un primer eje, y un par de primeros engranajes de reducción que están engranados o enganchados con la malla al engranaje de accionamiento giratorio alrededor de un segundo eje respectivo. Los segundos ejes están separados entre sí y son paralelos al primer eje. La segunda reducción tiene un engranaje de accionamiento y un par de segundos engranajes de reducción. El engranaje de accionamiento es giratorio alrededor de un tercer eje que es paralelo al primer eje. Cada uno de los segundos engranajes de reducción están engranados o enganchados con la malla al engranaje de accionamiento y acoplado de manera no giratoria a uno asociado de los primeros engranajes de reducción.

Electric drive unit with motor assembly isolated from beaming loads transmitted through housing assembly

An electric drive unit having an electric motor, a differential assembly, a transmission, which transmits rotary power between the electric motor and the differential assembly, a pair of axle shafts, which are drivingly coupled to output members of the differential assembly, and a housing assembly in which the electric motor, the differential assembly, the transmission, and the axle shafts are housed. The electric motor includes a stator, a rotor and a motor housing that houses the stator and the rotor. The motor housing is fixedly coupled the housing assembly. Bending loads transmitted through the motor housing are not transmitted through the electric motor.

Electric drive unit with motor assembly isolated from beaming loads transmitted through housing assembly

An electric drive unit having an electric motor, a differential assembly, a transmission, which transmits rotary power between the electric motor and the differential assembly, a pair of axle shafts, which are drivingly coupled to output members of the differential assembly, and a housing assembly in which the electric motor, the differential assembly, the transmission, and the axle shafts are housed. The electric motor includes a stator, a rotor and a motor housing that houses the stator and the rotor. The motor housing is fixedly coupled the housing assembly. Bending loads transmitted through the motor housing are not transmitted through the electric motor.

Unidade de acionamento elétrico

unidade de acionamento elétrico. uma unidade de acionamento elétrico que possui um motor elétrico multifásico e um inversor que controla a energia do motor elétrico. o inversor possui uma montagem de inversor, uma pluralidade de semicondutores de potência que são montados na montagem do inversor e uma pluralidade de barramentos. cada um dos barramentos tem uma primeira e uma segunda porções de barramento, cada uma tendo um corpo e uma pluralidade de dedos. os dedos na primeira e na segunda porções de barramento são acoplados mecânica e eletricamente a lados opostos dos terminais correspondentes dos semicondutores de potência.

Módulo de acionamento elétrico configurado como eixo de viga

módulo de acionamento elétrico configurado como eixo de viga. um módulo de acionamento elétrico operado eletricamente para uso em uma estrutura de veículo que é configurado para um trem de força que inclui um motor de combustão interna. o módulo de acionamento elétrico operado eletricamente permite que o veículo seja convertido em um veículo de propulsão elétrica de uma maneira que seja econômica e que tenha um peso relativamente baixo.

Achsbaugruppe mit außen liegenden Achslagern

Achsbaugruppe (10), umfassend:ein Achsgehäuse (20) mit einem rohrförmigen Element (86) und einem Endflansch (88), der fest an das rohrförmige Element (86) gekoppelt ist, wobei der Endflansch (88) einen Mittelkörper (90) und einen ersten Flansch (92) definiert, der sich radial auswärts von dem Mittelkörper (90) erstreckt, wobei der Mittelkörper (90) eine Durchgangsbohrung (100), eine erste Flanschhalterung (102) und eine äußere Dichtfläche (104) definiert, wobei die Durchgangsbohrung (100) einen ersten und zweiten Lagerbohrungsteil (106, 108) hat, wobei die erste Flanschhalterung (102) einen ersten ringförmigen Ansatz (110) hat;eine Achswelle (18), die eine innere Dichtfläche (50), eine erste Lagerhalterung (52) und eine zweite Lagerhalterung (54) definiert;eine Staubschildhalterung (76), die an dem ersten ringförmigen Ansatz (110) an der ersten Flanschhalterung (102) anliegt;eine Radendabdeckung (78) mit einem ringförmigen Körper (170) und einem zweiten Flansch (172), der sich radial auswärts von dem ringförmigen Körper (170) erstreckt, wobei der zweite Flansch (172) auf einer Seite der Staubschildhalterung (76) gegenüber dem ersten Flansch (92) an der Staubschildhalterung (76) anliegt, wobei der ringförmige Körper (170) mit der äußeren Dichtfläche (104) des Mittelkörpers (90) eingreift;eine Dichtung (80), die an dem ringförmigen Körper (170) der Radendabdeckung (78) angebracht ist und mit der inneren Dichtfläche (50) der Achswelle(18) dichtend eingreift; undein erstes und zweites Achslager (72, 74), wobei das erste Achslager (72) an der ersten Lagerhalterung (52) und dem ersten Lagerbohrungsteil (106) positioniert ist, wobei das zweite Achslager (74) an der zweiten Lagerhalterung (54) und dem zweiten Lagerbohrungsteil (108) positioniert ist, wobei das erste und zweite Achslager (72, 74) die Achswelle (18) für eine Drehung relativ zu dem Achsgehäuse (20) lagern.

Conjunto de eixo tendo um suporte de contato angular que suporta uma engrenagem de anel para girar em um alojamento do eixo

CONJUNTO DE EIXO TENDO UM SUPORTE DE CONTATO ANGULAR QUE SUPORTA UMA ENGRENAGEM DE ANEL PARA GIRAR EM UM ALOJAMENTO DO EIXO. A presente invenção refere-se a um conjunto de eixo que inclui um alojamento, um pinhão de entrada, uma engrenagem de anel, um suporte de contato angular e um conjunto do diferencial. O pinhão de entrada tem uma pluralidade de dentes de pinhão e é recebido no alojamento para girar sobre um primeiro eixo. A engrenagem de anel, que é recebida no alojamento, é uma engrenagem chanfrada tendo dentes de engrenagem de anel que definem um ângulo de passo e são engatados em entrosamento com os dentes de pinhão. O suporte de contato angular suporta a engrenagem de anel para girar no alojamento sobre um segundo eixo que é transversal ao primeiro eixo. O suporte de contato angular tem uma primeira corrediça, que é integralmente formada na engrenagem de anel, uma segunda corrediça, e uma pluralidade de mancais de esfera disposta entre as primeira e segunda corrediças. O conjunto do diferencial tem uma caixa do diferencial que é montada na engrenagem de anel para girar com o mesmo.

Achsbaugruppe mit außen liegenden Achslagern

Eine Achsbaugruppe mit einem Achsgehäuse, einer Radendabdeckung und einer Achswelle. Das Achsgehäuse hat ein rohrförmiges Element mit einem Endflansch, der daran gekoppelt wird. Ein Paar Achslager ist an der Achswelle und dem Endflansch angebracht und lagert die Achswelle für Drehung relativ zu dem Achsgehäuse. Die Radendabdeckung ist am Endflansch angebracht und trägt eine Dichtung, die mit der Achswelle eingreift. Ein Verfahren für ein Montieren einer Achsbaugruppe wird auch bereitgestellt.

Axle assembly

Electric drive module having motor with heat sink insert in rotor shaft

A motor drive system with a rotor assembly having an insert, which is received into a blind hollow rotor space in a rotor shaft. The insert is unitarily and integrally formed and defines a central hole, which is disposed along a rotational axis of the rotor assembly, and a plurality of slots that extend through an outer circumferential surface of the insert. The insert is disposed in the rotor shaft such that the outer circumferential surface of the insert is engaged to the inside circumferential surface of the rotor shaft. The central hole forms a first fluid passage through the insert, while the slots form a plurality of second fluid passages through the insert.

Electric drive module configured as a beam axle

An electrically-operated electric drive module for use in a vehicle framework that is configured for a powertrain that includes an internal combustion engine. The electrically-operated electric drive module permits the vehicle to be converted to an electrically propelled vehicle in a manner that is cost-effective and which is relatively low in weight.

Electric drive unit

An electric drive unit having a multi-phase electric motor and an inverter with a plurality of power semiconductors, an inverter mount, and a plurality of busbars. The power semiconductors are mounted to the base of the inverter mount in an annular arrangement and with the terminals of the power semiconductors extending through the base. Each of the busbars has a first busbar portion, which includes a first body and a set of first fingers that are fixedly coupled to the first body, and a second busbar portion that includes a second body and a set of second fingers that are fixedly coupled to the second body. Associated fingers in the first and second sets of fingers of each bus bar are mechanically and electrically coupled to opposite sides of a corresponding one of the terminals.

Electric drive module

An electric drive unit having a stator, a rotor received in the stator and rotatable about a central longitudinal axis, and an inverter assembly that includes a plurality of power semiconductors, a plurality of heat sinks and an end plate. The power semiconductors are thermally coupled to the heat sinks. Each of the heat sinks has a plurality of fins that extend into a flow channel that is coaxial with the plurality of sets of field windings. The end plate is coupled to the power semiconductors and has a projection, which is sealingly coupled to the stator and which and partly defines an annular cavity, and a coolant port that is coupled in fluid communication with the annular cavity. The flow channel is in fluid communication with and disposed in a flow path between the annular cavity and the cooling channels in the stator body.

Disipador de calor del dispositivo de conmutación de potencia integrado.

Un ensamble eléctrico que incluye un dado semiconductor, un disipador de calor y un alojamiento o carcasa. El dado semiconductor incluye un dispositivo semiconductor de potencia con una pluralidad de terminales, y una pluralidad de cables conductores eléctricamente. Cada uno de los cables conductores de electricidad está acoplado eléctricamente a una de las terminales asociadas en el dispositivo semiconductor de potencia. El disipador de calor tiene una base, un montaje y una pluralidad de aletas. El montaje se extiende desde un primer lado de la base y se acopla al dado semiconductor. Las aletas están fijamente acopladas a la base y se extienden desde un segundo lado de la base que es opuesto al primer lado de la base. El alojamiento o carcasa está formado por un primer material eléctricamente aislante. Uno de los primeros cables está formado unitaria e integralmente con el montaje.