Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 161. Отображено 97.
04-01-2018 дата публикации

System and method for performing an engine stop and start for a rolling vehicle

Номер: US20180001896A1
Автор: Alexander O`Connor Gibson, HONG Jiang, Kirk Pebley, Matthew John Shelton, Steven Anatole Frait
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems for improving operation of a vehicle driveline that includes an engine and an automatic transmission with a torque converter are presented. In one non-limiting example, the engine may be stopped while a vehicle in which the engine operates is rolling. A transmission coupled to the engine may be shifted as the vehicle rolls so that vehicle response may be improved if a driver requests an increase of engine torque.

Подробнее
Номер записи: 1
16-01-2020 дата публикации

CONTINUOUSLY VARIABLE TRANSMISSION

Номер: US20200018384A1
Автор: Armstrong Oronde J., Dawe Daniel J., Eidson Elton L., ELHARDT PAUL M., Lohr Charles B., McDaniel Loren T., Nichols Jon M., Pohl Brad P., Poxton Peter D., Simister Matthew P., Stewart Terry L., Thomassy Fernand A., Usmani Ghayyurul I.
Принадлежит:

Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a main axle is adapted to receive a shift rod that cooperates with a shift rod nut to actuate a ratio change in a CVT. In another embodiment, an axial force generating mechanism can include a torsion spring, a traction ring adapted to receive the torsion spring, and a roller cage retainer configured to cooperate with the traction ring to house the torsion spring. Various inventive idler-and-shift-cam assemblies can be used to facilitate shifting the ratio of a CVT. Embodiments of a hub shell and a hub cover are adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces and braking features for a CVT are disclosed. 113.-. (canceled)14. A power input assembly for a continuously variable transmission (CVT) having a longitudinal axis , the power input assembly comprising:a load cam driver;a torsion plate adapted to drive the load cam driver;an input driver configured to drive the torsion plate, wherein the load cam driver, the torsion plate, and the input driver are mounted coaxially about the longitudinal axis of the continuously variable transmission; anda one-way clutch adapted to drive the input driver.15. The power input assembly of claim 14 , wherein the load cam driver comprises a set of ramps.16. The power input assembly of claim 15 , the input driver having a first end and a second end claim 15 , wherein the first end of the input driver has a first set of splines claim 15 , wherein the torsion plate has a central bore adapted to couple to the second end of the input driver claim 15 , and wherein the torsion plate comprises a second set of splines.17. The power input assembly of claim 16 , wherein the input driver comprises a substantially hollow body claim 16 , ...

Подробнее
Номер записи: 2
14-02-2019 дата публикации

CONTROLLER FOR VARIABLE TRANSMISSION

Номер: US20190049004A1
Автор: Anderson Scott R., Jr. Stanley B., Miller Alan L., Quinn
Принадлежит:

An electronic controller for a variable ratio transmission and an electronically controllable variable ratio transmission including a variator or other CVT are described herein. The electronic controller can be configured to receive input signals indicative of parameters associated with an engine coupled to the transmission. The electronic controller can also receive one or more control inputs. The electronic controller can determine an active range and an active variator mode based on the input signals and control inputs. The electronic controller can control a final drive ratio of the variable ratio transmission by controlling one or more electronic solenoids that control the ratios of one or more portions of the variable ratio transmission. 1. A control system for a variable ratio transmission in a drivetrain comprising a variator and a range box , the drivetrain having a pressurized hydraulic fluid in a control path with at least one passage in the control path associated with the variator , the control system comprising:a plurality of sensors, each of the plurality of sensors configured to communicate a signal representing a measurement or a control state;a variator solenoid configured to control hydraulic pressure to the variator;a range clutch solenoid configured to control hydraulic pressure to a range clutch;a forward clutch solenoid configured to control hydraulic pressure to a forward clutch;a reverse clutch solenoid configured to control hydraulic pressure to a reverse clutch; and a shift logic module configured to send a command to one or more of a torque converter clutch solenoid, the range clutch solenoid, the forward clutch solenoid, and the reverse clutch solenoid to apply one or more of a torque converter clutch, the range clutch, the forward clutch, and the reverse clutch; and', 'a shift quality control module configured to determine a rate at which each of the torque converter clutch, the range clutch, the forward clutch, and the reverse clutch ...

Подробнее
Номер записи: 3
21-03-2019 дата публикации

CLUTCH TORQUE TRAJECTORY CORRECTION TO PROVIDE TORQUE HOLE FILLING DURING A RATIO UPSHIFT

Номер: US20190084576A1
Автор: Fodor Michael Glenn, Fujii Yuji, Lee Seung-hoon, Pietron Gregory Michael, Teslak Christopher John, Tseng Hongtei Eric, Yanakiev Diana
Принадлежит:

A control system and method for controlling a multiple gear ratio automatic transmission in a powertrain for an automatic transmission having pressure activated fiction torque elements to effect gear ratio upshifts. The friction torque elements are synchronously engaged and released during a torque phase of an upshift event as torque from a torque source is increased while allowing the off-going friction elements to slip, followed by an inertia phase during which torque from a torque source is modulated. A perceptible transmission output torque reduction during an upshift is avoided. Measured torque values are used during a torque phase of the upshift to correct an estimated oncoming friction element target torque so that transient torque disturbances at an oncoming clutch are avoided and torque transients at the output shaft are reduced. 1. A powertrain having a source of input torque and a multiple ratio power transmission with oncoming and off-going friction elements , and a shift controller configured for correcting an estimated oncoming friction element torque during a torque phase of a ratio shift using a measured powertrain operating variable whereby an increasing torque for the oncoming friction element is achieved with minimal torque transients during the torque phase.2. A powertrain having a source of input torque and a multiple ratio power transmission with oncoming friction elements and off-going friction elements for effecting ratio upshifts , and a shift controller configured for:increasing input torque during a torque phase of an upshift;estimating oncoming friction element target torque during the torque phase of the upshift;measuring an actual transmission operating variable for a torque transmitting element of the transmission; andcorrecting estimated oncoming friction element torque using the measured variable Whereby an increasing torque for the oncoming friction element is achieved with minimal torque transients during the torque phase.3. The ...

Подробнее
Номер записи: 4
05-04-2018 дата публикации

METHODS AND SYSTEMS FOR IMPROVING TRANSMISSION SHIFTING

Номер: US20180093657A1
Автор: Doering Jeffrey Allen, Gibson Alex O`Connor, Lee Seung-hoon, Pietron Gregory Michael, Reed Dennis Craig
Принадлежит:

Systems and methods for improving operation of a hybrid vehicle are presented. In one example, an engine is couple to a transmission in response to a transmission upshift to reduce transmission output shaft torque disturbances. 1. A method comprising:operating a hybrid-electric vehicle with a mechanical transmission with a plurality of clutches responsive to an operator input, the mechanical transmission separate from an engine via a disconnect clutch;in response to each of an automatic request to restart an engine and to shift the transmission, and after release of an off-going clutch, initiating application of an on-coming clutch and applying a load from the engine to an input shaft of the transmission via initiating application of a driveline disconnect clutch, the application of the on-coming clutch and the application of the driveline disconnect clutch initiated concurrently.2. The method of claim 1 , wherein the engine is coupled through the disconnect clutch to a driveline integrated starter/generator.3. The method of claim 1 , wherein the transmission is a dual layshaft dual clutch transmission.4. The method of claim 1 , where the engine does not apply a load to the input shaft of the transmission prior to the request to restart the engine and upshift the transmission claim 1 , where the transmission is in a moving vehicle and in a forward drive gear claim 1 , where the vehicle continues to move claim 1 , and where the transmission is shifted to a higher gear.5. The method of claim 1 , where an application rate of the driveline disconnect clutch is adjusted responsive to a desired cranking torque for the engine claim 1 , and where the driveline disconnect clutch is positioned in a driveline between the engine and a torque converter.6. The method of claim 1 , where the engine is accelerated from rest to a desired cranking speed via the application of the driveline disconnect clutch.7. The method of claim 1 , further comprising starting the engine when engine ...

Подробнее
Номер записи: 5
18-04-2019 дата публикации

Manual shifting control system and method for multi-speed automatic transmission

Номер: US20190113136A1
Автор: Brent Maurer, Edmond M. Etchason, Mark A. Rains
Принадлежит: Allison Transmission Inc

Systems and methods for managing shift changes of a multi-speed automatic transmission of a vehicle are provided. The multi-speed automatic transmission being capable of establishing a plurality of forward speed ratios. The vehicle may include a transmission shift selector having at least one operator selectable shift request input to request a shift change of the multi-speed automatic transmission. A control circuit operatively coupled to the multi-speed automatic transmission is provided which shifts the multi-speed automatic transmission from a first forward speed ratio to a second forward speed ratio in response to shift criteria. The shift criteria may be based on a plurality of operational characteristics related to the vehicle.

Подробнее
Номер записи: 6
03-06-2021 дата публикации

Systems and methods for controlling rollback in continuously variable transmissions

Номер: US20210164563A1
Автор: Brad P. Pohl, Charles B. Lohr, David Brian Jackson, Fernand A. Thomassy
Принадлежит: Fallbrook Intellectual Property Co LLC

A continuously variable transmission capable of operating in a forward direction or reverse direction may be controlled in the reverse direction by providing an initial skew angle in a first skew direction, followed by a set or sequence of skew angle adjustments in an opposite direction to prevent runaway or other unintended consequences. A continuously variable transmission may include a timing plate to maintain all planets at an angle or within a range of an angle in forward and reverse operations.

Подробнее
Номер записи: 7
12-07-2018 дата публикации

METHOD OF OPERATING A VEHICLE AND A VEHICLE

Номер: US20180195606A1
Автор: ROLAND Guenther, STIEBINGER Christian
Принадлежит:

A method of operating a vehicle having an engine, a throttle valve and a throttle operator. A continuously variable transmission operatively connected to the engine has a driving pulley, a driven pulley, and a belt operatively connecting therebetween. A ground engaging member is operatively connected to the driven pulley. A piston is operatively connected to the driving pulley for applying a piston force thereto and thereby changing an effective diameter of the driving pulley. A control unit controls actuation of the piston and the piston force. The method includes determining at least one of the throttle operator and throttle valve position, detecting a parking/drive away condition indicative of one of a parking operation and a drive-away operation of the vehicle, and, responsive to the detection, actuating the piston and controlling the piston force based on the at least one of the throttle operator position and the throttle valve position. 1. A method of operating a vehicle , an engine;', 'a throttle operator being operable by a driver of the vehicle;', 'a throttle valve regulating airflow to the engine, a throttle valve position of the throttle valve being based at least in part on a throttle operator position of the throttle operator;', 'a continuously variable transmission (CVT) operatively connected to the engine, the CVT including a driving pulley, a driven pulley, and a belt operatively connecting the driving pulley to the driven pulley;', 'at least one ground engaging member operatively connected to the driven pulley and comprising at least one of: a wheel and a track;', 'a piston operatively connected to the driving pulley for applying a piston force to the driving pulley when actuated and thereby changing an effective diameter of the driving pulley; and', 'a control unit for controlling actuation of the piston and the piston force,, 'the vehicle comprising determining at least one of the throttle operator position and the throttle valve position;', ' ...

Подробнее
Номер записи: 8
12-07-2018 дата публикации

METHOD OF OPERATING A VEHICLE AND A VEHICLE

Номер: US20180195607A1
Автор: ROLAND Guenther, STIEBINGER Christian
Принадлежит:

A method of operating a vehicle having an engine, a throttle valve and a throttle operator. A continuously variable transmission is operatively connected to the engine and has a driving pulley, a driven pulley, and a belt operatively connecting therebetween. At least one ground engaging member is operatively connected to the driven pulley and includes at least one of a wheel and a track. A piston is operatively connected to the driving pulley for applying a piston force to the driving pulley when actuated and thereby changing an effective diameter of the driving pulley. A control unit controls actuation of the piston and the piston force. The method includes determining an engine speed, and controlling the piston force based on the engine speed. 1. A method of operating a vehicle , an engine;', 'a throttle operator being moveable by a driver of the vehicle;', 'a throttle valve regulating airflow to the engine, a throttle valve position being based at least in part on a throttle operator position;', 'a continuously variable transmission (CVT) operatively connected to the engine, the CVT including a driving pulley, a driven pulley, and a belt operatively connecting the driving pulley to the driven pulley;', 'at least one ground engaging member operatively connected to the driven pulley and comprising at least one of: a wheel and a track;', 'a piston operatively connected to the driving pulley for applying a piston force to the driving pulley when actuated and thereby changing an effective diameter of the driving pulley; and', 'a control unit for controlling actuation of the piston and the piston force, the method comprising:', 'determining an engine speed; and', 'controlling the piston force based on the engine speed., 'the vehicle comprising2. The method of claim 1 , wherein the piston force is set to be at least as great as a minimum piston force claim 1 , the minimum piston force being predefined based on the determined engine speed.3. The method of claim 1 , ...

Подробнее
Номер записи: 9
13-09-2018 дата публикации

METHOD FOR CONTROLLING AN ENGINE DURING A RESTART

Номер: US20180258896A1
Автор: Lewis Donald J., Pursifull Ross Dykstra, Surnilla Gopichandra
Принадлежит:

Various systems and methods are described for controlling an engine in a vehicle, the engine being coupled to a transmission. One example method comprises, under selected braking conditions, shutting-off the engine and spinning-down the engine to rest while the vehicle is traveling, and in response to a foot-off-brake event, restarting the engine by at least partially engaging the transmission and adjusting engine torque control actuators. 120-. (canceled)21. A method for controlling a vehicle engine coupled to a transmission , comprising:in response to a first condition, restarting the engine by at least partially engaging the transmission to push-start and assist the engine in spinning-up from rest while a vehicle is traveling;when providing increased push-starting transmission torque, positioning a throttle to a first position; andwhen providing less push-starting transmission torque, positioning the throttle to a second, different position.22. The method of claim 21 , wherein the first position is a position that is more open than the second position.23. The method of claim 21 , wherein the first position is a position that is less open than the second position. The present description relates generally to an internal combustion engine coupled to a transmission in a motor vehicle.Vehicle engines may be configured to shut-off during idle conditions when the vehicle comes to a stop while a brake is applied and restarted once the brake is released (e.g., a stop/start system) in order to reduce fuel consumption. Fuel consumption may be further reduced by shutting down the engine during braking or by shutting down the engine when the operator is not braking and not requesting torque, before the vehicle has come to a stop.One approach to shutdown and subsequently restart the engine while the vehicle is traveling is disclosed in U.S. Pat. No. 6,951,525. In the cited reference, the engine is restarted prior to a transition from free-wheel mode to engaged clutch travel ...

Подробнее
Номер записи: 10
28-09-2017 дата публикации

SYSTEMS AND METHODS FOR CONTROL OF TRANSMISSION AND/OR PRIME MOVER

Номер: US20170274903A1
Автор: Bartholomew Mark Edward, Carter Jeremy, Delz Alan Mark, Diehl Eric, Keilers Cyril, McDaniel Loren T., Orand Austin, Parks Paul Argus, Pohl Brad P., Rogers David Lynn, Ruggles Tim, Vasiliotis Christopher M.
Принадлежит:

Disclosed here are inventive systems and methods for a powertrain of an electric vehicle (EV). In some embodiments, said powertrain includes a continuously variable transmission (CVT) coupled to an electric drive motor, wherein a control system is configured to control the CVT and/or the drive motor to optimize various efficiencies associated with the EV and/or its subsystems. In one specific embodiment, the control system is configured to operate the EV in an economy mode. Operating in said mode, the control system simultaneously manages the CVT and the drive motor to optimize the range of the EV. The control system can be configured to manage the current provided to the drive motor, as well as adjust a transmission speed ratio of the CVT. Other modes of operation are also disclosed. The control system can be configured to manage the power to the drive motor and adjust the transmission speed ratio of the CVT taking into account battery voltage, throttle position, and transmission speed ratio, for example. 1. A drive system comprising:a continuously variable transmission (CVT) having a plurality of tiltable spherical planets arranged about a longitudinal axis of the CVT; and a first sensor configured to provide vehicle speed data,', 'a second sensor configured to provide data associated with a transmission speed ratio of the CVT, and', 'a controller in electrical communication with an actuator, the controller configured to receive a signal from the first sensor and a signal from the second sensor, wherein the controller is further configured to determine when an efficiency improvement of the drive system can be achieved and adjust the CVT to achieve a desired transmission efficiency, and wherein the controller is configured to control the actuator to change a transmission speed ratio of the CVT to achieve the desired transmission efficiency., 'a transmission control system coupled to the CVT, the transmission control system comprising'}2. The drive system of claim 1 ...

Подробнее
Номер записи: 11
05-10-2017 дата публикации

CONTINUOUSLY VARIABLE GEAR TRANSMISSION

Номер: US20170284519A1
Автор: Kolstrup Anders
Принадлежит:

A continuously variable gear is described having an input shaft, a plurality of traction balls distributed radially around the axis, each traction ball is mounted on an axle passing there through, the axles are tiltable in the radial grooves in the housing and support plate. To control the position of the traction balls, the axles are guided in curved slots of a turnable iris plate. To control the axial placement of the traction balls, there is a rotatable input disc positioned adjacent to the traction balls, a rotatable output disc positioned adjacent to the traction balls opposite the input disc, and a pre-spanning ring around the traction balls such that each of the traction balls is making three-point contact with the input disc, the output disc and the pre-spanning ring, the contact surface of the pre-spanning ring having a specific curvature larger than the radius of the traction balls. 1. An apparatus for facilitating control of the ratio of a continuously variable transmission (CVT) , the apparatus comprising:a first member having a first plurality of radial grooves arranged angularly about an axis, the first plurality of radial grooves engaging a first end of ball axles of a plurality of traction balls of the CVT, wherein the first member is non-rotatable;a second member having a second plurality of radial grooves arranged angularly about the axis, the second plurality of radial grooves engaging a second end of the ball axles; andan actuator for rotating the first and second members relative to one another such that during operation of the CVT the first plurality of radial grooves can be angularly misaligned relative to the second plurality of grooves through a plane lying through the shaft, wherein an angular misalignment of the first and second plurality of radial grooves corresponds to a tilting of the ball axles in the first and second pluralities of radial grooves.2. The apparatus of claim 1 , wherein the first member comprises a stationary member ...

Подробнее
Номер записи: 12
12-09-2019 дата публикации

SYSTEM AND METHOD FOR PERFORMING AN ENGINE STOP AND START FOR A ROLLING VEHICLE

Номер: US20190276024A1
Автор: Frait Steven Anatole, Gibson Alexander O`Connor, Jiang Hong, Pebley Kirk, Shelton Matthew John
Принадлежит:

Methods and systems for improving operation of a vehicle driveline that includes an engine and an automatic transmission with a torque converter are presented. In one non-limiting example, the engine may be stopped while a vehicle in which the engine operates is rolling. A transmission coupled to the engine may be shifted as the vehicle rolls so that vehicle response may be improved if a driver requests an increase of engine torque. 17-. (canceled)8. A method for operating a vehicle driveline , comprising:activating an electric transmission pump in response to a request to stop an engine; andadjusting a speed of the electric transmission pump in response to an estimate of an amount of time between transmission gear shifts.9. The method of claim 8 , where the amount of time is based on a vehicle deceleration rate and a gear shift schedule.10. The method of claim 8 , further comprising adjusting the speed of the electric transmission pump in response to a pressure in an accumulator positioned downstream of the electric transmission pump.11. The method of claim 8 , further comprising starting the engine after stopping the engine and deactivating the electric transmission pump in response to engine speed exceeding a threshold speed a first time after a most recent engine start.12. The method of claim 8 , further comprising an accumulator positioned downstream of the electric transmission pump and a mechanical transmission pump claim 8 , and opening a valve on an outlet side of the accumulator in response to a request to stroke a transmission gear clutch.13. The method of claim 8 , further comprising partially activating a plurality of transmission gears by fully closing one or more clutches for each of the plurality of transmission gears and stroking claim 8 , but not fully closing claim 8 , one clutch for each of the plurality of transmission gears while the engine has stopped rotating.14. The method of claim 13 , further comprising opening and closing a valve located ...

Подробнее
Номер записи: 13
06-12-2018 дата публикации

SYSTEMS AND METHODS FOR CONTROLLING ROLLBACK IN CONTINUOUSLY VARIABLE TRANSMISSIONS

Номер: US20180347693A1
Автор: Jackson David Brian, Lohr Charles B., Pohl Brad P., Thomassy Fernand A.
Принадлежит:

A continuously variable transmission capable of operating in a forward direction or reverse direction may be controlled in the reverse direction by providing an initial skew angle in a first skew direction, followed by a set or sequence of skew angle adjustments in an opposite direction to prevent runaway or other unintended consequences. A continuously variable transmission may include a timing plate to maintain all planets at an angle or within a range of an angle in forward and reverse operations. 1. A method for controlling rollback in a continuously variable transmission (CVT) by a control system comprising a controller communicatively coupled to a sensor configured to sense a first operating parameter of the CVT , the control system further comprising an actuator configured to change a second operating parameter of the CVT , the method comprising:sensing the first operating parameter of the CVT; and sending a first command to the actuator to cause a first adjustment of the CVT;', 'sensing a rate of change of the first operating parameter based on the first adjustment; and', 'sending a second command to the actuator to cause a second adjustment of the CVT to maintain the rate of change of the first operating parameter constant., 'sending a command to the actuator to adjust a speed ratio of the CVT based on the sensed first operating parameter and a direction of rotation of the CVT, wherein if the CVT changes direction of rotation, sending a command to the actuator comprises2. The method of claim 1 , wherein the second command is sent based on the sensed first operating parameter.3. The method of claim 2 , wherein the first operating parameter comprises a speed ratio and the second operating parameter comprises a tilt angle or a skew angle.4. The method of claim 2 , wherein the first operating parameter comprises a tilt angle and the second operating parameter comprises the tilt angle or a skew angle.5. The method of claim 1 , wherein sensing the rate of change ...

Подробнее
Номер записи: 14
27-12-2018 дата публикации

Method for non-microslip based dual clutch transmission power on up shift

Номер: US20180370535A1
Автор: Andrew Hart, II Jeffrey S. Dunfee, Michael Gallion, Simon Fitzgerald
Принадлежит: Eaton Cummins Automated Transmission Technologies LLC

A method of controlling a dual clutch transmission power on up shift including an on-coming clutch and an off-going clutch. The method includes implementing a prep phase comprised of decreasing torque on the off-going clutch, monitoring the off-going clutch speed to determine a slip point, and adding a bump torque to the off-going clutch when the off-going clutch reaches the slip point. The method implements a torque phase transferring torque from the off-going clutch to the on-coming clutch by increasing torque on the on-coming clutch towards an engine torque, decreasing torque on the off-going clutch, and simultaneously keeping the combination of torques greater than the slip point.

Подробнее
Номер записи: 15
06-10-2015 дата публикации

Transmission for outdoor power equipment

Номер: US9150212B2
Автор: Jason J. Raasch
Принадлежит: Briggs and Stratton Corp

An engine includes a throttle, a drive shaft, a driven shaft, a continuously variable transmission coupling the drive and driven shafts and providing a mechanical advantage therebetween, and a governor that operates the throttle as a function of rotational speed of the driven shaft. The transmission includes a first wheel coupled to the drive shaft, a second wheel coupled to the driven shaft, and a belt coupling the first and second wheels, wherein a working diameter of the second wheel changes as a function of torque acting on the driven shaft, thereby automatically changing the mechanical advantage in response to torque experienced by the driven shaft, and wherein a working diameter of the first wheel changes a function of tension in the belt.

Подробнее
Номер записи: 16
26-05-2015 дата публикации

Methods and systems for adjusting driveline disconnect clutch operation

Номер: US9039570B2
Автор: Alex O'Connor Gibson, Dennis Craig Reed, Gregory Michael Pietron, Jeffrey Allen Doering, Seung-Hoon Lee
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Systems and methods for improving operation of a hybrid vehicle are presented. In one example, torque transferred via a driveline disconnect clutch is estimated based on characteristics of a torque converter to improve driveline operation.

Подробнее
Номер записи: 17
16-06-2015 дата публикации

Transmission downshift input torque modulation for a hybrid electric vehicle

Номер: US9056610B2
Автор: Andrew J. Silveri, Ihab S. Soliman
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

In a powertrain for motor vehicle that includes an engine, an electric machine able to function alternately as a motor and a generator, and a transmission whose input is driveably connected to the engine and the electric machine, a method for controlling transmission input torque during an downshift including using the engine to produce torque transmitted to the transmission input, during the ratio change phase of the downshift, operating the electric machine as a motor, and controlling a net torque transmitted to the transmission input by using the engine to drive the transmission and the electric machine concurrently, and during the torque transfer phase of the downshift, operating the electric machine as a generator.

Подробнее
Номер записи: 18
12-05-2015 дата публикации

Powertrain and method for a kinetic hybrid vehicle

Номер: US9028362B2
Автор: Hongping He, Jing He
Принадлежит: Hongping He, Jing He

A kinetic hybrid device and method for a vehicle may include a planetary gear system configured as a continuously variable transmission comprised of three or four ports. The kinetic hybrid device and method may include a flywheel connected to a first port of the system, a final drive connected to a second port of the system, and the variator for the flywheel connected to a third or fourth port of the system. The prime mover and/or other power sources may share a port with the flywheel, but do not share a port with the final drive.

Подробнее
Номер записи: 19
04-08-2015 дата публикации

System and method for operating an engine of a vehicle

Номер: US9096213B2
Автор: Anders Eriksson, Jan Öberg, Lena Larsson
Принадлежит: VOLVO LASTVAGNAR AB

A system and a method for operating an engine of a vehicle are provided wherein a transmission coupled to the engine has a freewheeling mode. The engine is switched off by setting the transmission into the freewheeling mode and interrupting fuel supply to the engine in the freewheeling mode depending on one or more operating conditions of the vehicle. A gear in the transmission is selected proactively depending on one or more operating actions of the vehicle anticipated to be required on or within a predefined time limit after restart of the engine.

Подробнее
Номер записи: 20
04-08-2015 дата публикации

Vehicle drive control device

Номер: US9097189B2
Автор: Masashi Takagi, Motonari Ohbayashi, Shinya Kodama, Toshihiro Takagi, Yuki Minase
Принадлежит: Toyota Motor Corp

When a driver attempts to hurriedly start driving a stopped vehicle, for example, the driver may, without realizing it, begin operating an accelerator pedal before shifting a shift lever from a non-drive position to a drive position. In such a situation, when the shift lever is shifted from a non-drive position to a drive position while the accelerator pedal is being operated, a drive power limiting process is implemented for limiting the drive power when the drive power is output from a drive source in accordance with the amount that the accelerator is being operated. As a result, when the shift lever is shifted from a non-drive position to a drive position in the abovementioned manner, it is possible to restrict starting of the vehicle, which is caused by the transmission of drive power from the drive source to the wheels. This reduces the strange sensation experienced by the driver.

Подробнее
Номер записи: 21
17-01-2017 дата публикации

Clutch stroke adaptation on engine shutdown

Номер: US9545908B2
Автор: Adam Nathan Banker, Dennis Craig Reed, Jeffrey Allen Doering
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method according to an exemplary aspect of the present disclosure includes, among other things, controlling a transmission system of a vehicle by positioning a disconnect clutch at its stroke point in response to a commanded engine shutdown.

Подробнее
Номер записи: 22
17-07-2018 дата публикации

Minimizing engine pull-ups and gear shifts in a hybrid vehicle

Номер: US10023179B2
Автор: Alexander T. Zaremba, David Richens Brigham, Kukhyun Ahn, Mark John Jennings, Mohammad SHAKIBA-HERFEH
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A hybrid vehicle includes powertrain components such as an engine, an automatic transmission, and a traction motor selectively coupled to the engine via a clutch and to the transmission. At least one controller is programmed to control these powertrain components. The vehicle is driven over a drive cycle that includes multiple engine starts and transmission gear shifts. An amount of fuel consumption used during these engine starts and transmissions gear shifts is stored on an on-board storage device. Subsequently, the engine is inhibited from starting and the transmission is inhibited from shifting gears based on the amount of fuel consumption associated with the engine starts and transmission gear shifts performed during the drive cycle as recalled from the storage device.

Подробнее
Номер записи: 23
11-06-2019 дата публикации

Method for controlling upshift sequencing

Номер: US10316961B2
Автор: Brandon M Fell, Henry R Wright, Mateusz M Nowak
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for transmission upshift sequencing includes detecting a lift foot gear hold condition is met and that a current engine speed is greater than a pattern gear engine speed for the current gear. If these conditions exists then the current gear is held until a first sequence timer expires and then an upshift event occurs to a first gear having an engine speed less than the current engine speed. The first gear is then held until a at least one other sequence timer expires and, thereafter, at least one other gear is selected and held until the engine speed is less than or equal to a pattern gear engine speed.

Подробнее
Номер записи: 24
24-05-2016 дата публикации

Power take-off for engine used in multi-function system and load management of such system

Номер: US9346464B2
Автор: Maciej PATER, Peter Ivan DAHLE, Tod GILBERT
Принадлежит: VMAC Global Technology Inc

An apparatus comprising an engine, a power take-off to be driven by the engine, one or more load services to be driven by the engine, a PTO modulator coupled to the power-takeoff output port and operable to selectively engage the power take-off to the engine to provide output rotational power, one or more load-service modulators coupled to the one or more load services and operable to selectively engage the one or more load services to the engine to provide service outputs, and a load controller configured to selectively operate the PTO modulator and the one or more load-service modulators to change the output from the power take-off or the one or more load services based on a condition of the engine and a load priority assigned to the power take-off or the one or more load services.

Подробнее
Номер записи: 25
31-01-2017 дата публикации

System and methods for assisted direct start control

Номер: US9555792B2
Автор: Alex O'Connor Gibson, Roger Lyle Huffmaster
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Systems and methods for assisted direct start control are provided. An example method varies engine torque, forward clutch engagement pressure, and wheel brake pressure during a vehicle launch responsive to longitudinal vehicle grade to improve launch performance.

Подробнее
Номер записи: 26
28-03-2017 дата публикации

Method and system to control vehicle operation

Номер: US9604645B2
Автор: Chris Paul Glugla, Shuya Shark Yamada
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for performing a multiple gear downshift of a transmission gear by transiently operating in an intermediate gear. In response to ambient humidity and a condensate level in a charge air cooler, the transmission gear may be downshifted from a higher gear to an intermediate gear, and then to a requested lower gear. Downshifting through an intermediate gear may also be controlled based on the gear shift request.

Подробнее
Номер записи: 27
06-10-2015 дата публикации

Gross slip-based control of a variator assembly

Номер: US9151382B2
Автор: Jesse B. Bradley, Jing Zhou, John E. Marano, Zhen J. Zhang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A vehicle includes an engine, drive wheels, a continuously variable transmission (CVT), and a controller. The CVT includes an input member connected to the engine, an output member delivering output torque to the wheels, and a variator assembly connecting the input and output members. The controller determines, via a method, an input and output speed of the variator assembly, converts the output speed to an equivalent input speed using a calibrated variator speed ratio, and calculates a gross slip of the variator assembly using the input and equivalent input speeds. A gross slip flag is set only when the gross slip exceeds a calibrated slip value for a predetermined duration. A CVT assembly includes the controller, input and output members, and variator assembly. The variator assembly may include drive and driven pulleys, a drive mechanism connecting the pulleys, and an actuator applying a clamping force to one of the pulleys.

Подробнее
Номер записи: 28
03-05-2016 дата публикации

Methods and systems for starting an engine while a vehicle is creeping

Номер: US9327721B2
Автор: Jeffrey Allen Doering, Rajit Johri, Scott James Thompson, XiaoYong Wang
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Systems and methods for starting an engine of a hybrid vehicle that is in a creep mode are presented. In one example, a torque converter lockup clutch is released and vehicle speed is closed loop controlled in response to a request to start an engine. The vehicle speed is controlled so that a torque disturbance related to closing a driveline disconnect clutch may be reduced.

Подробнее
Номер записи: 29
05-05-2015 дата публикации

Method and apparatus for executing a shift path to a target powertrain state

Номер: US9026327B2
Автор: Anthony H. Heap, Besim Demirovic, Lawrence A. Kaminsky, Pinaki Gupta
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for controlling a transmission of a powertrain system includes executing a single source shortest path search to identify a preferred shift path originating with an initial powertrain state and terminating at a target powertrain state, wherein the single source shortest path search employs transition-specific costs and situational costs to identify the preferred shift path. The preferred shift path is executed to achieve the target powertrain state.

Подробнее
Номер записи: 30
25-08-2015 дата публикации

System and method to prevent unintended vehicle travel

Номер: US9114704B2
Автор: Thomas J. Hermann
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A movement prevention system preventing undesired travel of a vehicle. A transmission gear sensor senses an out of park position of a vehicle transmission. An occupant detection system senses a presence of a driver in a driver seat of a vehicle in response to the vehicle transmission being out of the park position. A processor determines whether movement of the vehicle is likely to occur in response to a determination of the non-presence of the driver. A vehicle movement prevention device prevents movement of the vehicle in response to the processor determining whether movement of the vehicle is likely to occur.

Подробнее
Номер записи: 31
22-11-2016 дата публикации

Method to initiate, manage, and adapt vehicle motion at low speeds in a wet clutch dual clutch transmission

Номер: US9499154B2
Автор: Anthony Stasik, Frederic Boissinot, Graeme A. Jackson, Sarika Marfatia, Thomas R. Connolly, Tim Sandy
Принадлежит: Eaton Corp

A transmission control device for a vehicle that includes a controller configured to calculate a first transmission torque based on a first set of inputs, calculate a second transmission torque based on a second set of inputs, determine whether a brake pedal is applied, and apply either the first transmission torque or the second transmission torque based on whether the brake is applied.

Подробнее
Номер записи: 32
28-06-2016 дата публикации

Smart transmission shift delay method and system for climate control for a vehicle

Номер: US9376099B2
Автор: Jim Rollinson, Manfred Koberstein, Ranganathan Madhavan, Stephen R. Dennon, Tina Maurer
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method and system for the cancellation of transmission shift delay as a function of an optimum target temperature is disclosed. Once the pre-selected optimum target is achieved, the shift delay is cancelled and the transmission is upshifted. Thus the disclosed inventive concept is based on the cancellation of the shift delay on achieving climate control air conditioning comfort targets. Such comfort targets could include one or more of the measured HVAC evaporator temperature, the HVAC discharge temperature, or the in-vehicle cabin temperatures. When a temperature sensor measuring the selected temperature reaches the pre-selected target temperature the shift delay may be cancelled and the transmission may be upshifted, thus maximizing passenger comfort while minimizing fuel consumption. Having the shift delay based upon the achievement of specific measurable comfort targets in the form of target temperatures rather than on a set time period allows optimization between cabin comfort and fuel efficiency.

Подробнее
Номер записи: 33
15-11-2016 дата публикации

Method for increasing vacuum production for a vehicle

Номер: US9493164B2
Автор: Ralph Wayne Cunningham, Ross Dykstra Pursifull
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems for providing vacuum to a vehicle are described. In one example, a method adjusts an application force of a transmission clutch in response to a request for additional vacuum.

Подробнее
Номер записи: 34
29-11-2016 дата публикации

Industrial vehicle

Номер: US9505395B2
Автор: Norihiko Kato, Yukikazu Koide
Принадлежит: Toyota Industries Corp

An industrial vehicle includes an accelerator, an accelerator opening sensor which detects an opening of the accelerator, a loading unit, an engine and a torque restriction releasing unit. When the torque restriction releasing unit is set in an Eco-mode in which torque of the engine is restricted, if the opening of the accelerator detected by the accelerator opening sensor is a first predetermined value or greater and at least one of conditions that a speed of the vehicle is a second predetermined value or greater and that the loading unit is in a lifting operation, is satisfied and such conditions of the accelerator and the vehicle speed and/or lifting operation are continued for a predetermined period of time, the torque restriction releasing unit releases the torque restriction.

Подробнее
Номер записи: 35
16-02-2016 дата публикации

Methods and systems for operating a driveline disconnect clutch responsive to engine operating conditions

Номер: US9260107B2
Автор: Alex O'Connor Gibson, Dennis Craig Reed, Gregory Michael Pietron, Jeffrey Allen Doering, Seung-Hoon Lee
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Systems and methods for improving operation of a hybrid vehicle are presented. In one example, a driveline disconnect clutch transfer function may be adapted in response to engine operating conditions during closing of the driveline disconnect clutch.

Подробнее
Номер записи: 36
18-06-2019 дата публикации

Multi-stage transmission

Номер: US10323697B2
Автор: Juergen Schweitzer, Klaus Riedl, Recep Tevetoglu, Roland Lotter, Tobias Schilder
Принадлежит: DAIMLER AG

A multi-stage transmission having at least four planetary gear stages which are disposed one behind the other along a main axis of rotation and which in each case have a sun gear, a planetary gear support, and a ring gear is disclosed. The multi-stage transmission has a bearing which supports the sun gear of the second planetary gear stage and the ring gear of the third planetary gear stage axially with respect to one another.

Подробнее
Номер записи: 37
13-09-2016 дата публикации

System and method of speed-based downspeed coasting management

Номер: US9440635B2
Автор: An Wu, Barty L. Moffett, Howard R. Frost, Kenneth Follen, Phani Vajapeyazula, Vivek A. Sujan
Принадлежит: Cummins Intellectual Property Inc

A velocity profile can be used in conjunction with vehicle operating condition data to determine a gear shift schedule that mitigates the amount of service brake effort required to slow a vehicle by making optimal use of engine speed, friction and engine brakes. The gear shift point drives the engine to a higher operating speed and greater frictional torque, slowing the vehicle, which can then coast to a desired speed. The gear shift point can be timed to minimize fuel consumption during the maneuver. Thus, a vehicle downshift event is created based on the transmission gear recommendation. The benefit is increased freight efficiency in transporting cargo from source to destination by minimizing fuel consumption and maintaining drivability.

Подробнее
Номер записи: 38
19-04-2016 дата публикации

Change of mind shift control

Номер: US9316309B2
Автор: Harinath Atmaram, William R. Mayhew
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of controlling shifts in a multi-speed transmission includes beginning an initial shift, which changes the transmission from a starting gear to an initial target gear, and executing an adjusted shift, which changes the transmission to an adjusted target gear having higher speed ratio than the initial target gear, when transition conditions are satisfied. The transition conditions include a threshold increase in torque request, which is sufficient to require the transmission to be placed into the adjusted target gear. The transition conditions also include a common controlling clutch, which is partially engaged during the initial shift and the adjusted shift and is an off-going clutch to place the transmission in the adjusted target gear. Executing the adjusted shift does not include placing the transmission in a neutral mode. Furthermore, executing the adjusted shift does not include completing the initial shift.

Подробнее
Номер записи: 39
10-03-2015 дата публикации

Method and system to control vehicle operation

Номер: US8974346B2
Автор: Chris Paul Glugla, Shuya Shark Yamada
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for performing a multiple gear downshift of a transmission gear by transiently operating in an intermediate gear. In response to ambient humidity and a condensate level in a charge air cooler, the transmission gear may be downshifted from a higher gear to an intermediate gear, and then to a requested lower gear. Downshifting through an intermediate gear may also be controlled based on the gear shift request.

Подробнее
Номер записи: 40
07-07-2015 дата публикации

Deceleration control system for a vehicle

Номер: US9073540B2
Автор: Craig A. Cauthen
Принадлежит: Toyota Motor Engineering and Manufacturing North America Inc

A system for decelerating a hybrid vehicle, the system includes a continuously variable transmission (CVT), a brake pedal, an accelerator pedal, a sensor for detecting a vehicle deceleration, a memory for storing a target deceleration corresponding to a coasting deceleration of the vehicle, and a processor. When the brake pedal and the accelerator pedal are released, the vehicle coasts. If the vehicle deceleration does not match the target deceleration, the processor adjusts the torque output by the CVT so that the vehicle deceleration substantially matches the target deceleration.

Подробнее
Номер записи: 41
02-02-2021 дата публикации

Differential system with differential rate governed by variable speed motor and associated method of operation

Номер: US10907715B2
Автор: Shaun Chu
Принадлежит: Individual

Disclosed herein are systems, gearing assemblies, and methods for controlling a differential rotation rate between shafts of a vehicle using a variable speed motor. An embodiment includes a gearing assembly including a differential configured to engage a first axle shaft, a second axle shaft, and a drive shaft of a vehicle. The gearing assembly further includes a plurality of adjustment gears configured to engage the differential, configured to be driven by a variable speed motor of the vehicle, and configured to controllably alter a rotation of the first axle shaft relative to the second axle shaft based on rotation produced by the variable speed motor. The plurality of adjustment gears includes a subassembly of planetary gears including a planetary gear carrier, a first set of planetary gears coupled to the planetary gear carrier, and a second set of planetary gears coupled to the planetary gear carrier.

Подробнее
Номер записи: 42
12-04-2016 дата публикации

Power transmission apparatus

Номер: US9309932B2
Автор: Takahiro Yoshimura
Принадлежит: Toyota Motor Corp

A power transmission apparatus comprises an input shaft, an output shaft, a clutch device, and an actuator. The clutch device comprises a clutch hub, a clutch housing, a clutch pack, an input side cam mechanism for pressing the clutch pack toward the output shaft, an output side cam mechanism for pressing the clutch pack toward the input shaft, a return spring for urging the clutch pack to have its elements moved away from each other, and a drive shaft having an input side gear for transmitting the driving force of the actuator to the input side cam mechanism, and an output side gear for transmitting the driving force of the actuator to the output side cam mechanism.

Подробнее
Номер записи: 43
24-05-2016 дата публикации

Transmission control system

Номер: US9346456B2
Автор: Naoki Sakamoto
Принадлежит: Honda Motor Co Ltd

A transmission control system can include a main transmission. The transmission control system can also include a sub transmission that has two forward transmission gears mechanically shiftable in response to a shift operation. The transmission control system can further include a controller that shifts the transmission gears of the main transmission by activating a shift control motor, and control the clutches configured to enable and disable transmission of a rotational driving force of an engine. When one forward transmission gear of the sub transmission is shifted to the other forward transmission gear in response to the shift operation, the controller can relax engagement of the clutch if an engine speed exceeds a clutch release speed.

Подробнее
Номер записи: 44
11-07-2017 дата публикации

Method for operating a motor vehicle with a dual clutch transmission and control unit for carrying out the method

Номер: US9701301B2
Автор: Roland Mair
Принадлежит: ZF FRIEDRICHSHAFEN AG

A method for operating a dual-clutch transmission of a vehicle having partial transmissions with respective transmission input shafts. Two friction clutches can couple a corresponding input shaft of the partial transmissions to a drive shaft. Both partial transmissions drive a common output shaft. During a rocking free operation for rocking the vehicle free, a gear in each respective partial transmission is engaged for driving in opposed primary and secondary directions as specified by the driver. The clutches are alternately engaged and disengaged. For rocking the vehicle free, the clutch of the partial transmission having the gear for driving in the primary direction when engaged, is engaged based on accelerator pedal actuation, and in contrast the clutch of the partial transmission having the gear for driving in the secondary direction when engaged, is automatically engaged if neither of the accelerator or brake pedals has been actuated.

Подробнее
Номер записи: 45
12-06-2018 дата публикации

Method and device for actuating a shift element of an automatic transmission having a start-stop means

Номер: US9995385B2
Автор: Horst RÖGNER, Josef Haupt
Принадлежит: ZF FRIEDRICHSHAFEN AG

A method and device for actuating a shift element of an automatic transmission having a start-stop function and a pressure medium pump driven by an internal combustion engine. The shifting elements are clutches or brakes that can be actuated by a piston which is actuated for engagement via pressure supplied to a pressure space. The pressure space is depressurized when the engine stops. To enhance start-stop operation, the shifting elements comprise an additional pressure space that acts, in opposition to the pressure space acting in the engaging direction, as a controllable restoring mechanism which can be rendered inactive, if desired. If the engine stops and the automatic start-stop function is activated, the additional pressure spaces, acting in the restoring direction, are depressurized before the pressure drop in the pressure spaces, acting in the engaging direction, of the pistons, but are otherwise permanently pressurized during driving operation.

Подробнее
Номер записи: 46
10-03-2020 дата публикации

Control apparatus for vehicle

Номер: US10583836B2
Автор: Nahoko TAKADA, Naoyuki Tashiro
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

Provided is a novel control apparatus for a vehicle which allows the number of stops and restarts to be reduced while performing engine stop and coasting control. The configuration is such that, when there is a high probability of restarting an engine under circumstances where engine stop and coasting control is performed, the engine is maintained in idling operation while only the clutch is disengaged. For example, if it is determined that there is a high probability of restarting due to a change in the acceleration of a host vehicle or a preceding vehicle, the clutch is disengaged and the vehicle is coasted. Since the engine is maintained in an idle state, there is no need for restarting, and the number of restarts can be minimized.

Подробнее
Номер записи: 47
06-10-2015 дата публикации

Interactive transmission shift techniques

Номер: US9151383B2
Автор: Changwei Cao, David D. Dicks, Jason P. Frisch, Joseph B. Adams, Joseph J. Sobczak, Raymond J. Tessier, JR., Richard G. Mayer, William Mayhew
Принадлежит: FCA US LLC

A method for interactive transmission garage shifts includes receiving a request for a transmission garage shift; controlling the transmission to bring the vehicle to a stop state based on determining that the vehicle is rolling backwards on a grade above a predetermined grade threshold and at a speed below a predetermined speed threshold; controlling an electric park brake (EPB) to hold the vehicle at the stop state; controlling the transmission to engage a dog clutch so as to place the transmission in a forward drive gear; and controlling the EPB to i) deactivate if the dog clutch is determined to be engaged, or ii) maintain activation to maintain the vehicle at the stop state if the dog clutch is determined to be disengaged.

Подробнее
Номер записи: 48
14-07-2020 дата публикации

Method of operating a vehicle and a vehicle

Номер: US10711889B2
Автор: Christian Stiebinger, Guenther ROLAND
Принадлежит: BRP Rotax GmbH and Co KG

A method of operating a vehicle having an engine, a throttle valve and a throttle operator. A continuously variable transmission operatively connected to the engine has a driving pulley, a driven pulley, and a belt operatively connecting therebetween. A ground engaging member is operatively connected to the driven pulley. A piston is operatively connected to the driving pulley for applying a piston force thereto and thereby changing an effective diameter of the driving pulley. A control unit controls actuation of the piston and the piston force. The method includes determining at least one of the throttle operator and throttle valve position, detecting a parking/drive away condition indicative of one of a parking operation and a drive-away operation of the vehicle, and, responsive to the detection, actuating the piston and controlling the piston force based on the at least one of the throttle operator position and the throttle valve position.

Подробнее
Номер записи: 49
26-01-2016 дата публикации

Method of calibration of a park brake of a continuously variable transmission

Номер: US9242632B2
Автор: Garth H. Bulgrien, Pavel Kuros, Peter J. Dix, Robert C Prasse
Принадлежит: CNH INDUSTRIAL AMERICA LLC

A method of calibrating a hydraulically operated park brake of a continuously variable transmission of a vehicle. With the vehicle moving at a set, slow speed within a specified range, and the park brake off, a search technique is used, wherein the brake hydraulic pressure is reduced by application of a control signal of a selected test value to apply the brake. When the selected test value is reached, it is held constant, and a condition in a HSU of the transmission is monitored for a change indicative of engagement of the park brake. This will expectedly be in the form of a pressure change and more particularly an increase indicating initial contact between the plates of the brake, and if the HSU change is not detected, the step will time out and another control signal value will be tested.

Подробнее
Номер записи: 50
24-11-2015 дата публикации

Automatic transmission and method for controlling the same

Номер: US9193345B2
Автор: Yutaka Ishikawa
Принадлежит: Honda Motor Co Ltd

An automatic transmission includes an input member, a planetary gear set, a plurality of engagement mechanisms, an output member, a switching mechanism, an engine braking determination device, a vehicle speed detector, and a controller. The controller is configured to prevent the switching mechanism from switching a mode from a fixed mode to a reverse rotation prevention mode when a shift position is changed from a reverse drive range to a forward drive range, and if the engine braking determination device determines that a vehicle is in an engine braking mode or if a travel speed of the vehicle detected by the vehicle speed detector is higher than a predetermined speed.

Подробнее
Номер записи: 51
02-02-2016 дата публикации

Power unit for motorcycle

Номер: US9249842B2
Автор: Hodaka Mukouhara
Принадлежит: Honda Motor Co Ltd

A power unit for a motorcycle includes an internal combustion engine with a transmission having an input shaft and an output shaft. A clutch with a hydraulic cylinder is provided for changing over the connection/disconnection of power transmission between a crankshaft and the input shaft. A cylinder support member, mounted on the engine body, includes a cylindrical case portion where a portion of the hydraulic cylinder is housed. The power unit can be miniaturized by suppressing the projection of the hydraulic cylinder from the engine body in the axial direction. A cover member is mounted on the engine body for covering and surrounding a projecting end portion of an output shaft from an engine body. A cylinder support member is mounted on the engine body such that a portion of a case portion is arranged in an opening portion formed by cutting away a portion of the cover member.

Подробнее
Номер записи: 52
02-07-2019 дата публикации

System and method for performing an engine stop and start for a rolling vehicle

Номер: US10336333B2
Автор: Alexander O'Connor Gibson, HONG Jiang, Kirk Pebley, Matthew John Shelton, Steven Anatole Frait
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems for improving operation of a vehicle driveline that includes an engine and an automatic transmission with a torque converter are presented. In one non-limiting example, the engine may be stopped while a vehicle in which the engine operates is rolling. A transmission coupled to the engine may be shifted as the vehicle rolls so that vehicle response may be improved if a driver requests an increase of engine torque.

Подробнее
Номер записи: 53
27-06-2017 дата публикации

Method and apparatus to control a continuously variable transmission

Номер: US9689495B2
Автор: Paul G. Otanez, Shushan Bai, Zhen J. Zhang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A powertrain system including an internal combustion engine rotatably coupled to a variator of a continuously variable transmission (CVT) is described. A method for controlling the CVT includes determining a first speed ratio change rate based upon a desired speed ratio and a commanded speed ratio, and determining a commanded speed ratio trajectory based upon the first speed ratio change rate, an actual speed ratio and a commanded speed ratio. A ratio change coefficient and a force ratio factor are determined based upon the commanded speed ratio trajectory. A shift force is determined based upon the ratio change coefficient and a total speed ratio change rate. A primary pulley pressure and a secondary pulley pressure for the CVT are controlled based upon the shift force and the force ratio factor.

Подробнее
Номер записи: 54
13-09-2016 дата публикации

Shift control device and shift control method for vehicle

Номер: US9441731B2
Автор: Keisuke Ota, Seiji Masunaga, Yoshio Hasegawa
Принадлежит: Toyota Motor Corp

Torque shares that express an exchange of torque are set as a constraint condition of an equation of motion of an automatic transmission, so it is suitable to control an exchange of torque between engagement devices, which is difficult in shift control, and it is possible to solve the equation of motion. In other words, it is possible to handle any shift pattern with the use of a predetermined shift model. Furthermore, at the time of a shift in which two elements are released and two elements are engaged, a first shift and a second shift in each of which one element is released and one element is engaged are carried out, so three control operation amounts are used in each of the first shift and the second shift, with the result that it is possible to solve the equation of motion.

Подробнее
Номер записи: 55
31-01-2017 дата публикации

Transmission system having temperature based input control

Номер: US9556807B2
Автор: Brian D. Hoff, Mark E. Rettig, Michael D. Beyer, Steven D. SPENCER
Принадлежит: Caterpillar Inc

A transmission system is disclosed for use with an engine. The transmission system may have a plurality of gear sets, an input member configured to be powered by the engine and to drive the plurality of gear sets, an output member driven by the plurality of gear sets, and at least one clutch configured to selectively engage select gears of the plurality of gear sets. The transmission system may also have a controller in communication with the engine. The controller may be configured to generate an estimated temperature of the at least one clutch. The controller may further be configured to selectively derate the engine based on the estimated temperature.

Подробнее
Номер записи: 56
06-06-2017 дата публикации

Shift control device for continuously variable transmission

Номер: US9671017B2
Автор: Keisuke Ajimoto
Принадлежит: Fuji Jukogyo KK

A transmission control device includes a converter that converts continuous accelerator positions detected by an accelerator pedal sensor into a stepped step position, and a controller that controls the gear ratio of a continuously variable transmission based on the converted step position. The converter creates a hysteresis regarding the converted step position, when the accelerator depression amount increases, and when the accelerator depression amount decreases. In the case where the step position reaches a predetermined position or greater, the controller executes kick-down control where the gear ratio is controlled to a low side.

Подробнее
Номер записи: 57
10-05-2016 дата публикации

Control device and control method for continuously variable transmission

Номер: US9334933B2
Автор: Hideshi Wakayama, Keichi Tatewaki, Kousuke Waku, Naohiro Yamada, Noritaka Aoyama
Принадлежит: JATCO Ltd

A control device for continuously variable transmission is composed of a continuously variable transmission mechanism and friction engagement elements, and includes a control unit for decreasing, during a coast stop control to stop a driving power source in a traveling state of a vehicle, a transmission torque capacity transmittable by the friction engagement elements to fall under a belt capacity being torque transmittable by a belt using a holding force of pulleys.

Подробнее
Номер записи: 58
06-09-2016 дата публикации

Continuously variable transmission and control method therefor

Номер: US9435434B2
Автор: Hiroyasu Tanaka, Mamiko Inoue, Takuichiro Inoue
Принадлежит: JATCO Ltd, Nissan Motor Co Ltd

A transmission controller determines whether or not to downshift a sub-transmission mechanism based on an opening and an opening speed of an accelerator pedal and a torque change rate of an engine, and downshifts the sub-transmission mechanism when a determination is made to downshift the sub-transmission mechanism.

Подробнее
Номер записи: 59
09-02-2016 дата публикации

Driving force transmission device and vehicle having said driving force transmission device

Номер: US9254746B2
Автор: Takami Yokoo
Принадлежит: Toyota Motor Corp

In a 4WD vehicle that is basically an FF type, a propeller shaft 4 includes, on a front end and a rear end thereof, respective driving force transmission devices 3 and 5 . The propeller shaft 4 includes an electric motor 41 , and when the electric motor 41 is rotated in a backward direction of the vehicle during a 2WD state, a hypoid ring gear 36 of a transfer mechanism 32 of the driving force transmission device 3 is moved so as to engage a clutch mechanism 31 . By such an engagement, engine torque is transmitted to the driving force transmission device 5 via the propeller shaft 4 . Thus, a hypoid ring gear 56 of a transfer mechanism 52 of the driving force transmission device 5 is moved so as to engage a clutch mechanism 51 . Accordingly, a drive state is switched to a 4WD state.

Подробнее
Номер записи: 60
07-07-2015 дата публикации

Control device and control method for continuously variable transmission

Номер: US9073537B2
Автор: Kiyokazu Tanaka, Takuya TAKAMURA, Toshinari OHDE
Принадлежит: JATCO Ltd

A shift control device is mounted on a vehicle and provided with a shift control unit to control a speed ratio of a continuously variable transmission which continuously shifts and allows output of a rotational speed of a driving power source, wherein the shift control unit executes, based on a driving state of the vehicle, a first shift control for suppressing a change of the speed ratio and a second shift control for upshifting the speed ratio to a predetermined speed ratio, and suppresses a change of the speed ratio in the first shift control, followed by shifting the speed ratio to become lower before execution of the second shift control.

Подробнее
Номер записи: 61
05-01-2016 дата публикации

Method for calibrating a detector in a damping assembly

Номер: US9227618B2
Автор: Gabriele Morandi, Mancarella Francesco, Matteo VENTURELLI
Принадлежит: CNH INDUSTRIAL AMERICA LLC

A method for calibrating a detector of a damping assembly in a vehicle. The damping assembly comprises a damper for connecting a transmission shaft of a transmission system of the vehicle to a driving shaft, the method comprising the step of applying different torques at the damping assembly by generating losses at different working conditions of the transmission system, so that the damper can be compared to a damper of a reference vehicle for each of the different working conditions.

Подробнее
Номер записи: 62
27-12-2016 дата публикации

Clutch failure diagnostic method for DCT

Номер: US9528604B2
Автор: Young Min Yoon
Принадлежит: Hyundai Motor Co, Kia Motors Corp

A clutch failure diagnostic method for a dual clutch transmission (DCT), may include a synchronous clutch confirming step of confirming whether a clutch rotating in synchronization with an engine speed may be present after a cranking of an engine, when the clutch rotating in the synchronization with the engine speed may be determined to be present, a gear joining attempting step of attempting to join shift gears connected to the clutch rotating in the synchronization with the engine speed, and a failure determining step of determining that a corresponding clutch fails when the gears may be not joined, as a performance result of the gear joining attempting step.

Подробнее
Номер записи: 63
23-06-2020 дата публикации

Method for non-microslip based dual clutch transmission power on up shift

Номер: US10689001B2
Автор: Andrew Hart, II Jeffrey S. Dunfee, Michael Gallion, Simon Fitzgerald
Принадлежит: Eaton Cummins Automated Transmission Technologies LLC

A method of controlling a dual clutch transmission power on up shift including an on-coming clutch and an off-going clutch. The method includes implementing a prep phase comprised of decreasing torque on the off-going clutch, monitoring the off-going clutch speed to determine a slip point, and adding a bump torque to the off-going clutch when the off-going clutch reaches the slip point. The method implements a torque phase transferring torque from the off-going clutch to the on-coming clutch by increasing torque on the on-coming clutch towards an engine torque, decreasing torque on the off-going clutch, and simultaneously keeping the combination of torques greater than the slip point.

Подробнее
Номер записи: 64
31-01-2017 дата публикации

Transmission control device of motorcycle

Номер: US9555810B2
Автор: Kenichi Yamagata, Masahiko Nomura, Mitsuaki Shirasaki
Принадлежит: Mitsubishi Electric Corp

A motorcycle's transmission control device is provided in which, in a case of a clutchless shift operation, disengagement of a fit of gears of a transmission and the fit of subsequent gears thereof can be smoothly achieved. A throttle operation unit controls the degree of opening of a throttle valve to become a first throttle opening-degree when a clutchless shifting unit determines that a clutchless down-shift operation can be implemented, and controls the degree of opening of the throttle valve to become a second throttle opening-degree when the clutchless shifting unit determines that a fit between shift gears is disengaged by the clutchless down-shift operation.

Подробнее
Номер записи: 65
14-04-2020 дата публикации

Shifting control system and method for multi-speed automatic transmission based on object detection

Номер: US10619728B2
Автор: Brent Maurer, Edmond M. Etchason, Mark A. Rains
Принадлежит: Allison Transmission Inc

Systems and methods for managing shift changes of a multi-speed automatic transmission of a vehicle are provided. The multi-speed automatic transmission being capable of establishing a plurality of forward speed ratios. The vehicle may include a transmission shift selector having at least one operator selectable shift request input to request a shift change of the multi-speed automatic transmission. A control circuit operatively coupled to the multi-speed automatic transmission is provided which shifts the multi-speed automatic transmission from a first forward speed ratio to a second forward speed ratio in response to shift criteria. The shift criteria may be based on a plurality of operational characteristics related to the vehicle.

Подробнее
Номер записи: 66
14-04-2020 дата публикации

Shifting control system and method for multi-speed automatic transmission based on vehicle location

Номер: US10619727B2
Автор: Brent Maurer, Edmond M. Etchason, Mark A. Rains
Принадлежит: Allison Transmission Inc

Systems and methods for managing shift changes of a multi-speed automatic transmission of a vehicle are provided. The multi-speed automatic transmission being capable of establishing a plurality of forward speed ratios. The vehicle may include a transmission shift selector having at least one operator selectable shift request input to request a shift change of the multi-speed automatic transmission. A control circuit operatively coupled to the multi-speed automatic transmission is provided which shifts the multi-speed automatic transmission from a first forward speed ratio to a second forward speed ratio in response to shift criteria. The shift criteria may be based on a plurality of operational characteristics related to the vehicle.

Подробнее
Номер записи: 67
30-08-2016 дата публикации

DCT control method in case of failure of wheel speed sensor

Номер: US9429200B2
Автор: Young Min Yoon
Принадлежит: Hyundai Motor Co, Kia Motors Corp

A dual clutch transmission (DCT) control method for a vehicle mounted with a DCT, which is not provided with an output shaft speed sensor, when a wheel speed sensor has failed, or the information cannot be controlled in a situation where shift gears are not coupled, properly couples the shift gears while preventing a clutch burst, and thus a controller can control DCT by calculating an output shaft speed of DCT.

Подробнее
Номер записи: 68
17-07-2018 дата публикации

Method for controlling lock-up clutch of automatic transmission

Номер: US10024422B2
Автор: Bong Uk BAE, Chang Wook Lee, Jin Young Hwang, Kyung Moo Lee, Min Jae CHAI, Se Hwan Jo, Won Ho Kim
Принадлежит: Hyundai Motor Co

The present disclosure relates to a method for controlling a lock-up clutch of an automatic transmission. The method includes: a detecting step of detecting, by a controller, a current signal applied to a solenoid valve of an engaging element when a gear change operation begins; and a first increasing control step of controlling, by the controller, an amount of current that is applied to a solenoid valve of a lock-up clutch during an initial fill time period when it is determined that the current signal is applied to the solenoid valve of the engaging element. In particular, the solenoid valve of the engaging element is used to form a gear stage, and the controller increases the amount of current to a predetermined level for a predetermined period of time.

Подробнее
Номер записи: 69
11-02-2020 дата публикации

Control apparatus

Номер: US10557545B2
Автор: Koichi Fushimi, Masaya Tamai, Ryohei Yamagishi, Tetsuya Mochizuki, Yutaka Ishikawa, Yuya Tachibanada
Принадлежит: Honda Motor Co Ltd

A control apparatus of an automatic transmission, which includes a mechanical engaging mechanism functioning as a brake, includes a determination unit determining, when a selected gear is a lowest forward speed gear, and the mechanism is in a second state, whether to switch the mechanism to the first state, and a switching processing unit switching the mechanism to the first state based on a determination result. In the first state, only rotation of a predetermined rotational element provided in planetary gear mechanisms in a first direction is restricted. In the second state, rotation of the predetermined rotational element in both the first and second direction is restricted. The determination unit determines to switch the mechanism to the first state at least on condition that a driving force is larger than a predetermined driving force.

Подробнее
Номер записи: 70
08-05-2018 дата публикации

Maximum axial position changing RPM methods

Номер: US09964209B2
Автор: Armin Sebastian Tay
Принадлежит: Individual

Methods that can be used to “limit the maximum shaft/spline rpm (speed) at which axial position changing of a variator mounted on it is performed to a “maximum axial position changing rpm value” for all variator mounted shafts/splines of a CVT, while still allowing a safe driving experience and also allowing the driver to use the full power of the engine when needed.

Подробнее
Номер записи: 71
08-05-2018 дата публикации

Multi-stage transmission for a motor vehicle

Номер: US09964159B2
Автор: Juergen Schweitzer, Klaus Riedl, Thomas Kull, Tobias Haerter, Tobias Schilder
Принадлежит: DAIMLER AG

A multi-stage transmission for a motor vehicle is disclosed. The transmission has a transmission input shaft, at least four planetary gear stages which are disposed one behind the other along a main axis of rotation, and at least one combined gear shift unit which is configured as a brake and has a rotatable coupling element as well as a friction-locking unit and a form-locking unit connected in parallel with the friction-locking unit, which are in each case provided in order to connect the rotatable coupling element fixedly to the housing. One of the planetary gear stages is associated with the combined gear shift unit and includes a transmission element which is permanently connected non-rotatably to the rotatable coupling element. The planetary gear stage associated with the combined gear shift unit includes a further transmission element which is permanently connected non-rotatably to the transmission input shaft.

Подробнее
Номер записи: 72
17-04-2018 дата публикации

Method of operating a vehicle and a vehicle

Номер: US09945479B2
Автор: Christian Stiebinger, Guenther ROLAND
Принадлежит: BRP Rotax GmbH and Co KG

A method of operating a vehicle at different altitudes. The vehicle has an engine, a throttle valve and a throttle operator. A continuously variable transmission has a driving pulley connected to the engine, a driven pulley, and a belt operatively connecting therebetween. A ground engaging member is operatively connected to the driven pulley. A piston is connected to the driving pulley. A control unit controls actuation of the piston and the piston force. The method includes determining an altitude and/or an atmospheric pressure, a driven pulley speed, and at least one of the throttle operator position and the throttle valve position. The piston is selectively actuated based on the altitude and/or the atmospheric pressure. The piston force is controlled based on the driven pulley speed, and at least one of: the throttle operator position and the throttle valve position. Vehicles and other methods of operation thereof are also disclosed.

Подробнее
Номер записи: 73
10-04-2018 дата публикации

Transmission device for a motor vehicle

Номер: US09939028B2
Автор: Markus Brandenburg, Markus Rossmeier, Nils Tonius, Tobias Haerter
Принадлежит: DAIMLER AG

A transmission device for a motor vehicle is disclosed. The transmission device includes at least one coupling unit, which for non-rotatable connection of two coupling elements, has a friction-locking unit and a form-locking unit connected in parallel to the friction-locking unit. The device further includes a first hydraulic and/or pneumatic actuator for actuation of the form-locking unit, a second hydraulic and/or pneumatic actuator for actuating the friction-locking unit, and a directional valve for controlling the first actuator provided for actuation of the form-locking unit. The directional valve has a control line connection which in at least one operational state is connected in pressure terms to the second actuator provided for actuation of the friction-locking unit.

Подробнее
Номер записи: 74
20-03-2018 дата публикации

Method and device for controlling a coasting operating mode in a motor vehicle with an internal combustion engine

Номер: US09921589B2
Автор: Frederic Stefan, Goetz-Philipp Wegner, Rainer Busch, Urs Christen
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method and a device for automatically deactivating a coasting operating mode in a motor vehicle with an internal combustion engine is disclosed. An activated coasting operating mode is deactivated if the current vehicle speed exceeds a threshold value. The threshold value is set as the sum of a minimum vehicle speed and of a maximum permissible increase in speed.

Подробнее
Номер записи: 75
20-02-2018 дата публикации

Temperature warning device and temperature warning method of friction element

Номер: US09897202B2
Автор: Hidetoshi Tsukidate, Kenichi Ooshima, Takeshi Yamamoto
Принадлежит: Nissan Motor Co Ltd

A temperature warning method of a friction element for issuing a warning depending on temperature of the friction element arranged between a power source and a driving wheel, includes issuing the warning when the temperature of the friction element exceeds an upper limit temperature, and making a period of time, from when the temperature of the friction element exceeds the upper limit temperature until when the warning is issued, longer when the temperature of the friction element exceeds the upper limit temperature for a first time than when the temperature of the friction element exceeds the upper limit temperature for a second or subsequent time.

Подробнее
Номер записи: 76
13-02-2018 дата публикации

Solenoid valve control system, a control valve system, and a method of controlling electronic valve

Номер: US09891634B2
Автор: Jyunichi SAKASHITA, Naoki Kobayashi, Yoshihisa Sugimoto
Принадлежит: Nidec Tosok Corp

A solenoid valve control system comprising a solenoid valve drive circuit applying a drive current to the solenoid valve; a pressure data calculation unit calculating a pressure data including a band and a cycle of pressure fluctuation from a pressure value; a pressure hysteresis calculation unit calculating a difference between the pressure value when the drive current value is increased and the pressure value when the drive current value is decrease as a hysteresis amount; a vibration determination unit determining whether or not the pressure data is included in an area outside the pressure data range, which is outside a first predetermined range; a hysteresis determination unit determining whether or not the pressure hysteresis amount is included in an area outside the pressure hysteresis amount range, which is outside a second predetermined range; and a drive frequency adjustment unit adjusting a drive frequency based on the determination result.

Подробнее
Номер записи: 77
13-02-2018 дата публикации

Vehicle powertrain synchronization based on predicted driver actions

Номер: US09889852B2
Автор: Brent Hodges, Gregory J. Boss, John E. Moore, JR., Tamer E. Abuelsaad
Принадлежит: International Business Machines Corp

An approach is provided in which a powertrain synchronizer analyzes condition data that corresponds to impending conditions external to a vehicle. The powertrain synchronizer predicts a driver's future action in response analyzing the condition data and adjusts the vehicle's powertrain subsystem based upon the predicted driver action.

Подробнее
Номер записи: 78
13-02-2018 дата публикации

Vehicle and method for improving fuel-efficiency during temporary stop

Номер: US09889840B2
Автор: Dong-Hoon Jeong, Hyun-Ku Lee, Hyun-Seung Suh, Kyoo-Ho Lee, Moo-Suk Kim, Myong-Chan Kim, Sang-Bum Baek, Woo-Jin Chang
Принадлежит: Hyundai Motor Co, Kia Motors Corp

A method for improving fuel-efficiency during a temporary stop may include dividing, by an engine control apparatus, a neutral control condition into a neutral control entry and a neutral control release during a D-stage temporary stop, determining, a neutral control entry D-stage target RPM at a time of the neutral control entry, and a neutral control release D-stage target RPM at a time of the neutral control release, and RPM shifting the neutral control entry D-stage target RPM to a speed gradient conforming to a transmission clutch release time of a transmission control apparatus at a time of a neutral control after the neutral control entry and RPM shifting the neutral control release D-stage target RPM to a speed gradient conforming to a clutch coupling time of a transmission by the transmission control apparatus at a time of a neutral control after the neutral control release.

Подробнее
Номер записи: 79
30-01-2018 дата публикации

Systems and methods for control of transmission and/or prime mover

Номер: US09878719B2
Автор: Alan Mark Delz, Austin Orand, Brad P. Pohl, Christopher M. Vasiliotis, Cyril Keilers, David Lynn Rogers, Eric Diehl, Jeremy Carter, Loren T. Mcdaniel, Mark Edward Bartholomew, Paul Argus Parks, Tim Ruggles
Принадлежит: Fallbrook Intellectual Property Co LLC

Disclosed here are inventive systems and methods for a powertrain of an electric vehicle (EV). In some embodiments, said powertrain includes a continuously variable transmission (CVT) coupled to an electric drive motor, wherein a control system is configured to control the CVT and/or the drive motor to optimize various efficiencies associated with the EV and/or its subsystems. In one specific embodiment, the control system is configured to operate the EV in an economy mode. Operating in said mode, the control system simultaneously manages the CVT and the drive motor to optimize the range of the EV. The control system can be configured to manage the current provided to the drive motor, as well as adjust a transmission speed ratio of the CVT. Other modes of operation are also disclosed. The control system can be configured to manage the power to the drive motor and adjust the transmission speed ratio of the CVT taking into account battery voltage, throttle position, and transmission speed ratio, for example.

Подробнее
Номер записи: 80
09-01-2018 дата публикации

Modular control device for a transmission of a commercial vehicle

Номер: US09863527B2
Автор: Daniel Geis-Esser, Juergen SCHUDY
Принадлежит: Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH

A control device is provided for a transmission having at least three shift actuators for the gear selection, a plurality of valves for actuating the shift actuators and a further plurality of valves for actuating the clutch. The shift actuators, the valves for actuating the shift actuators and the valves for actuating the clutch are combined in a common housing and that, within this housing, the shift actuators are grouped into a spatially connected shift group, the shift actuator valves are grouped into a spatially connected valve group and the clutch actuator valves are grouped into a further spatially connected valve group, wherein the shift group and the two valve groups and do not spatially overlap.

Подробнее
Номер записи: 81
09-01-2018 дата публикации

Vehicle system and method for keyless authentication and control of an ignition system

Номер: US09862353B2
Автор: Julianne KRAWCIW
Принадлежит: Denso Corp, Denso International America Inc

The present teachings provide for a keyless authentication system for a vehicle including a sensor, a control module, and a portable transceiver and a method of authenticating the portable transceiver. The sensor can be configured to transmit a first sensor signal when a brake or clutch pedal of the vehicle is pressed. The control module can be configured to receive the first sensor signal and to wirelessly transmit a first inquiry signal if a power plant of the vehicle is on and the control module receives the first sensor signal. The portable transceiver can be configured to receive the first inquiry signal and to wirelessly transmit a first response signal in response to receiving the first inquiry signal. The control module can be configured to receive the first response signal and to shut off the power plant of the vehicle if the first response signal is not an authorized signal.

Подробнее
Номер записи: 82
02-01-2018 дата публикации

Control method of dual clutch transmission for vehicle and control system for the same

Номер: US09856978B2
Автор: Ho Young Lee
Принадлежит: Hyundai Motor Co

The present disclosure provides a control method and a control system of a dual clutch transmission for a vehicle. The method includes: a pre-engagement-determining step of determining whether any one of gears has been pre-engaged, by means of a controller; a clutch-moving step of generating an oscillation signal to the release input shaft and increasing a clutch position value of the release input shaft; and a signal-determining step of determining whether the oscillation signal generated to the release input shaft is sensed at the engagement input shaft.

Подробнее
Номер записи: 83
02-01-2018 дата публикации

Shift control device

Номер: US09856977B2
Автор: Koichi Inoue, Koichiro Terai, Masato Igarashi, Takahiro Kinoshita
Принадлежит: Subaru Corp

[Object] To provide a shift control device that, in a shift control device of a vehicle equipped with an idling-stop mechanism and a shift-by-wire mechanism, is capable of preventing setting off at a timing that the driver does not expect when returning from an idling-stop state. [Solution] The SBW-CU ( 40 ) that constitutes the shift control device ( 1 ), in the case of selection information for selecting the R range being output during an idling stop, switches the shift range of the automatic transmission ( 10 ) to the R range when the vehicle is braked, and switches the shift range to the N range or the P range when the vehicle is not braked and the shift range of the automatic transmission ( 10 ) is the D range. Also, the SBW-CU ( 40 ), in the case of selection information for selecting the R range being output during an idling stop, maintains the shift range without switching it when the vehicle is braked and the shift range of the automatic transmission ( 10 ) is other than the D range.

Подробнее
Номер записи: 84
05-12-2017 дата публикации

System and method for performing an engine stop and start for a rolling vehicle

Номер: US09834217B2
Автор: Alexander O'Connor Gibson, HONG Jiang, Kirk Pebley, Matthew John Shelton, Steven Anatole Frait
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems for improving operation of a vehicle driveline that includes an engine and an automatic transmission with a torque converter are presented. In one non-limiting example, the engine may be stopped while a vehicle in which the engine operates is rolling. A transmission coupled to the engine may be shifted as the vehicle rolls so that vehicle response may be improved if a driver requests an increase of engine torque.

Подробнее
Номер записи: 85
28-11-2017 дата публикации

Drive train having a spur gearing and a centrifugal pendulum

Номер: US09829064B2
Автор: Alain Rusch, Friedrich Gerhardt, Steffen Lehmann
Принадлежит: Schaeffler Technologies AG and Co KG

A drive train including an internal combustion engine with a crankshaft, and having a spur gear arrangement with at least one transmission input shaft that is coupled to the crankshaft by a friction clutch. A clutch plate within a housing of the friction clutch is connected in a rotationally locked manner to the at least one transmission input shaft and includes a centrifugal force pendulum. To accommodate the centrifugal force pendulum in the drive train in a space saving manner, the centrifugal force pendulum is situated on the at least one transmission input shaft at an axial distance from the clutch plate.

Подробнее
Номер записи: 86
28-11-2017 дата публикации

Methods and systems for improving transmission shifting

Номер: US09827975B2
Автор: Alex O'Connor Gibson, Dennis Craig Reed, Gregory Michael Pietron, Jeffrey Allen Doering, Seung-Hoon Lee
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Systems and methods for improving operation of a hybrid vehicle are presented. In one example, an engine is couple to a transmission in response to a transmission upshift to reduce transmission output shaft torque disturbances.

Подробнее
Номер записи: 87
21-11-2017 дата публикации

Control method for driving of vehicle for fail-safe

Номер: US09821816B2
Автор: Dae Ro Park, Jin Woo Cho
Принадлежит: Hyundai Motor Co

A control method for driving of a vehicle for fail-safe, including: determining, by a controller, whether an interface apparatus selecting a shift range fails; confirming, by the controller, the shift range selected upon the failure determination; determining whether the vehicle is in a parking state when the shift range selected upon the failure determination is out of a D range; as a result of performing the determining of the parking, when the vehicle is in the parking state, guiding, by the controller, a driver to step on an accelerator pedal for forward driving of the vehicle; and after the guiding of the driving, when a manipulated quantity of an accelerator pedal is detected, limiting, by the controller, a torque to reduce an output torque value of the vehicle depending on the manipulated quantity of the accelerator pedal for a predetermined reference time.

Подробнее
Номер записи: 88
17-10-2017 дата публикации

Apparatus for controlling automatic transmission and method thereof

Номер: US09791041B2
Автор: Chong Tae Yang, Dong Hoon Jeong
Принадлежит: Hyundai Motor Co, Kia Motors Corp

An automatic transmission control apparatus includes an engine generating power by a combustion of fuel; an automatic transmission provided with a friction element including a clutch and a brake and changing the power generated in the engine into a torque required depending on a speed by an engagement and release of the friction element to be output; an accelerator pedal position sensor detecting a position signal of the accelerator pedal; and a controller determining whether a vehicle is in a rapid acceleration state from the position signal of the accelerator pedal detected from the accelerator pedal position sensor and correcting a control hydraulic pressure of the friction element if the vehicle is the rapid acceleration state. Since the friction element control hydraulic pressure is controlled depending on the operation speed of the accelerator pedal, the shift responsiveness may be improved.

Подробнее
Номер записи: 89
19-09-2017 дата публикации

Control system and control method for vehicle

Номер: US09765886B2
Автор: Daisuke Inoue, Hirofumi Nakada, Hiroki Kondo, Kazuya Ishiizumi, Kenji Matsuo, Kyohei Suzumura, Michio Yoshida, Satoshi Taninaka
Принадлежит: Toyota Motor Corp

A control system and a control method for a vehicle, the vehicle includes an engine, an input shaft, an output shaft, a continuously variable transmission section, a stepped transmission section and a clutch mechanism, and a control device. The continuously variable transmission section and the stepped transmission section are provided between the input shaft and the output shaft. The clutch mechanism is provided in a torque transmission path between the stepped transmission section and drive wheels. The control device is configured to disengage the clutch mechanism in a case where a vehicle speed is at least equal to a specified value and the engine is stopped.

Подробнее
Номер записи: 90
19-09-2017 дата публикации

Electronically controlled range valve for multi-speed planetary transmission

Номер: US09765877B2
Автор: Charles F. Long, Charles T. Taylor
Принадлежит: Allison Transmission Inc

A shift by wire control for a multi-speed vehicle transmission is provided. The control includes a shift by wire shift valve in fluid communication with other shift valves and clutch trim valves to provide double blocking features in the neutral range and a reverse range. The shift by wire valve is configured with multiple differential areas to provide failure modes for all forward ranges.

Подробнее
Номер записи: 91
12-09-2017 дата публикации

Control system for four-wheel drive vehicle

Номер: US09758037B2
Автор: Kohei Horiike, Kunihiro Iwatsuki
Принадлежит: Toyota Motor Corp

Even in the case where it is difficult to increase an engine torque (Te) during switching when a running is switched to a 4WD running or a 2WD running during a 2WD_d running, an alternative control section suppresses a fluctuation in the driving force of a four-wheel drive vehicle, hence it is possible to suppress a switching shock and an unnatural feeling of deceleration occurring during the switching to the 4WD running or the 2WD running.

Подробнее
Номер записи: 92
05-09-2017 дата публикации

Transmission control circuit

Номер: US09752675B2
Автор: Guenter Rheinheimer, Helmut Schaefer, Steffen Frassek
Принадлежит: Deere and Co

A transmission control circuit for controlling a system pressure provided by a pressure pump in a transmission. The circuit includes a pressure control valve and an electronic control unit. Load states and operating states of the working machine can be detected by the control unit and transmission input torque limits associated with the load states and state values representing at least one first operating state and state values representing at least one second operating state are stored therein. The first operating state corresponds with the maximum system pressure and the second operating state corresponds with a reduced system pressure compared to the maximum system pressure. The circuit includes a pressure limiting valve activated by the control unit to overrule the pressure control valve in order to variably set the reduced system pressure.

Подробнее
Номер записи: 93
15-08-2017 дата публикации

Control apparatus for vehicular drive system

Номер: US09732834B2
Автор: Hiroshi Natsume
Принадлежит: Toyota Motor Corp

A control apparatus for a vehicular drive system provided with an automatic transmission constituting a part of a power transmitting path between an electric motor and drive wheels, and a fluid-operated power transmitting device provided between the electric motor and the automatic transmission and having an input rotary element connected to said electric motor, and an output rotary element connected to said automatic transmission, includes a warm-up control implementing portion configured to implement a stall control of said fluid-operated power transmitting device wherein the input rotary element of said fluid-operated power transmitting device is rotated by said electric motor while the fluid-operated power transmitting device is placed in a stalling state.

Подробнее
Номер записи: 94
08-08-2017 дата публикации

Continuously variable transmission

Номер: US09726282B2
Автор: Brad P. Pohl, Charles B. Lohr, Donald C. Miller, Jeremy Carter, Robert A. Smithson
Принадлежит: Fallbrook Intellectual Property Co LLC

Embodiments are directed to a front end accessory drive (FEAD) and power modulating devices (PMD) which can be used in a FEAD. In one embodiment, a continuously variable transmission (CVT) is coupled directly to a crankshaft of a prime mover, and the CVT is used to regulate the speed and/or torque delivered to an accessory. A compound drive device includes a motor/generator subassembly cooperating with a CVT subassembly to provide a motor functionality with torque multiplication or division, or alternatively, a generator functionality with torque multiplication or division. In some embodiments, a FEAD includes a PMD having a sun shaft configured to couple to a sun of the PMD and to an electric motor component, such as an electrical armature or an electrical field. In one embodiment, the electrical armature the electrical field are placed concentrically and coaxially and configured to rotate relative to one another in opposite directions.

Подробнее
Номер записи: 95
08-08-2017 дата публикации

Adaptive automatic transmission control system

Номер: US09725095B2
Автор: Bradley S. Carlson
Принадлежит: International Truck Intellectual Property Co LLC

An adaptive automatic transmission control system responds to stopping of a vehicle for reducing torque absorption by an automatic transmission and movement of and range to obstructions forward from a vehicle for reengaging the automatic transmission after a stop. The torque converter is released from its reduced torque absorption mode under one of three circumstances: 1) the brake pedal is released; 2) the detected obstruction moves outside a first predefined maximum range; and, 3) the detected obstruction moves outside a second predefined maximum range and at greater than a predefined minimum speed.

Подробнее
Номер записи: 96
01-08-2017 дата публикации

Active rev-matching for manual transmissions

Номер: US09719595B2
Автор: Bradford W. Bur, Edward J. Rodenbo, Richard I. Chang, Shaun D. Hoffman
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An active rev-matching system for a motor vehicle manual transmission includes an engine control module that monitors and adjusts an output speed of the motor vehicle's prime mover and at least one sensor that monitors movement of a shift linkage. When the at least one sensor determines the movement of the shift linkage is an in-gate downshift, the engine control module adjusts the available time for the engine control module to match the output speed of the prime mover to an input speed of the transmission.

Подробнее
Номер записи: 97