Hybrid power automobile power assembly control method

The invention fully discloses a control method for the power assembly of a hybrid electric vehicle. The power assembly of the hybrid electric vehicle comprises an engine and a motor which are coaxially connected, under the unified coordination of HCU, by using the output torque of the EMS control engine and the output torque of the MCU control motor, the working model of the power assembly is divided into the followings modes: an engine automatic start/stop mode, an auxiliary drive mode, a power-generating mode and a regenerative braking model, wherein, the auxiliary drive mode can be divided into a performance auxiliary drive mode and an efficiency auxiliary drive mode by HCM according to the condition of SOC battery. Therefore, the scheme ensures that SCO battery is in an optimum state, thereby not only ensuring that the regenerative braking mode is charged, but also ensuring that a sufficient electric energy can be used for driving the automobile and starting the engine under the engine ...

Power assembly system of electric vehicle

The present invention provides a power assembly system of electric vehicle, which comprises three main assemblies of a motor (1), a reduction gearbox (2) and a differential mechanism (3). The motor (1) comprises a rotor (4) and a stator (5). The rotor (4) of motor is hollow. A left output shaft of power assembly transmits the power to the outside through the hollow part of rotor (4) of motor. A sun wheel (9) of reduction gearbox (2) receives the power transmitted from the motor. A planet wheel (8) of reduction gearbox, a left output shaft and an output shaft of differential mechanism have an integrated structure. The power is transmitted to the right output shaft by the input shaft of differential mechanism through the differential mechanism. The power assembly system of electric vehicle of the invention has a compact structure, about one half of volume and mass of traditional parallel-axis power assembly, reduced vibration strength of power assembly, and increased stability of power assembly ...

Unsupervised sentence representation learning method based on redundant information filtering

The invention discloses an unsupervised sentence representation learning method based on redundant information filtering, which is characterized in that redundant information in a pre-training data set is filtered based on reconstruction operation of an information minimization principle, BERT and RoBERTa are used as basic models for training, and the basic models are trained on a Wikipedia data set to obtain an InforMin-CL model; the hidden vector of the output end of the model is further mapped by the full-connection network to obtain a vector, the vector is used as a learned sentence representation, and the reconstruction is that one positive sample reconstructs another positive sample so as to realize filtering of redundant information. Compared with the prior art, the method has a reconstruction operation designed based on an information minimization principle to discard redundant information, can contribute to a pre-training redundant information filtering problem in all sentence ...

Assembly method of permanent magnet motor rotor

The invention discloses an assembly method of a permanent magnet motor rotor. In the method, the specifications and sizes of a rotor magnetic steel are determined according to the design scheme of a motor, the sizes of the magnetic steel are different, the magnetic steel of each pole is possibly composed of different pieces of small magnetic steel; and the pieces of small magnetic steel forming the magnetic steel of each pole are shaped by a special die through a special working procedure and then are qualified by bonding glue, therefore, the magnetic steel of each pole is shaped into a whole with the bonding glue, the sizes of the shaped magnetic steel need to meet the requirement of being matched with grooves on rotor stamping steel, and the integral stamped magnetic steel is pressed into rotor grooves through a press. According to the difference of axial lengths of the magnetic steel, the total axial length can be equally divided into multiple sections, thereby reducing the difficulty ...

Testing system of hybrid power motor and testing method thereof

The invention relates to a testing system of a hybrid power motor and a testing method thereof, wherein an engine, a motor and a power assembly of a gear box are assembled on the production line by one time; the power assembly is directed transported to a testing bench; firstly, the calibration of a motor position sensor is conducted; next, the reliability test of the motor is conducted; the testing system is provided with a calibration controller which conducts the calibration to the motor position sensor; the testing system also comprises a direct-current power cabinet, a PC computer, a three-phase converter box and a safety micro-control switch, wherein the phase a, the phase b and the phase c of the motor are connected with the calibration controller by the three-phase converter box; the calibration controller is electrified by the direct-current power cabinet and conducts communication with the PC computer by a CAN wire; the PC computer controls the power cabinet by a communication ...

Unsupervised sentence representation learning method for removing negative samples

The invention discloses an unsupervised sentence representation learning method for removing negative samples, which is characterized in that the performance of a SiamCSE model is improved by adopting a method for filtering redundant information in a pre-training data set by adopting a prediction task, randomly selected words in sentences are repeated, and then the repeated words are transmitted into an encoder, so that a non-supervised sentence representation learning method without losing semantic information in the sentences is obtained. According to the method, sentence representation learning of negative samples is achieved through positive samples which are different in length, and the method specifically comprises the steps of setting a mapping layer of a multi-layer perceptron, restraining similarity of middle hidden vectors through an objective function, removing redundant information through a prediction task, generating a cross-correlation matrix and a decorrelation matrix, training ...

Externally appiled traditional Chinese medicine preparation for treating venereal diseases, mycoplasma infection and Chlamydia infection

The invention discloses an externally applied traditional Chinese medicine preparation for treating venereal diseases, mycoplasma infection and Chlamydia infection, which comprises the following raw material medicaments in parts by weight: cnidium, lightyellow sophora root, atractylis, smilax glabra, coptis, tribulus terrestris, borneol and radix notoginseng. The preparation includes a powdery preparation and a suppository preparation which are directly applied to an affected part. The adopted medicaments work together to achieve the efficacy of killing insects and detoxicating, converging bleeding, removing fever and eliminating cold, changing rotten matter into muscles, and dispersing pathogenic wind and relieving itching, are directly used on the affected part, and have good therapeutic effects on mycoplasma infection, Chlamydia infection, gonorrhoea and various venereal diseases. Through clinical application, the external traditional Chinese medicine preparation has the advantages of ...

Driving system of electric automobile and control method thereof

The invention relates to a driving system of an electric automobile and a control method thereof. A mileage prolonging system taking an electric generating set as a main body can prolong the mileage when the energy content of a battery is too low; an engine is not taken as a power source for driving the whole automobile any more, and has the main function of driving an electric generator for power generation. Pure electromotion running without oil consumption can be realized within pure electromotion design mileage; when the running mileage excesses the design mileage of the battery, a driving motor drives the whole automobile by utilizing the electrical energy generated by the electric generator, and the mode control among the motor, the battery and the electric generating set is optimized, so that the continuous driving mileage of the whole automobile can be increased.

Handheld 3D scanner and use method

The handheld 3D scanner comprises a shell (1) and a front panel (2), a lens module, a power supply circuit board (31), a battery and a mainboard (10) are arranged in the shell (1), the lens module is fixedly or detachably connected with the power supply circuit board (31), the battery is in power supply connection with the lens module, the power supply circuit board (31) and the mainboard, and the power supply circuit board (31) is electrically connected with the mainboard. A touch screen (3) is further arranged at the position, located in the area where the lens module is located, of the exterior of the shell (1), the touch screen (3) is in communication connection with the power circuit board (31), various complex on-site testing environments are met, good portability is achieved, and compared with a laser scanner, the laser scanner has the great advantage in cost.

Balanced suspension assembly annex commodity circulation frame

The utility model provides a balanced suspension assembly annex commodity circulation frame, including the support body, the support body comprises stand, spreader, and welded connection is as an organic whole between stand and the spreader, be provided with the baffle on the spreader, divide into the three -layer with the support body, shang mian two -layer baffle one end edge is articulated with the spreader that contacts respectively, and baffle side edge is provided with air spring, and air spring's fulcrum and stand fixed connection realize the upset, the most the lower layer of baffle and the fixed welding of spreader, baffle first layer surface is provided with the rubber slab, has the well on the rubber slab. The utility model discloses balanced suspension assembly annex commodity circulation frame designs to relevant annexes such as balanced suspension assembly and distance rod, U type bolts specially, solved among the prior art wooden case the commodity circulation in and the ...

Oral drug for gynecologic preoperative bowel preparation

The invention discloses an oral drug for gynecologic preoperative bowel preparation, and solves the bowel cleanse problem before a gynecological operation. The oral drug is characterized by being prepared from the following raw materials in a weight proportion: horseweed herb, fructus cinnamomi, capparis acutifolia, Chinese starjasmine stem, loofah sponge, fruit of Chinese wolfberry, dipsacus asperoides, rhizoma acori graminei, sunflower flowers, turbo cornutus solander, ox horn bones and magnesium sulfate. Proved by clinical experiments, the oral drug disclosed by the invention has the characteristic of being good in bowel cleanse effect before the gynecological operation, and is worthy of clinical application and popularization.

Model board trolley of cable trough in tunnel channel

The invention relates to a model board trolley of a cable trough in a tunnel channel. The model board trolley comprises a frame and a template, wherein the upper end of the frame is connected with a cross beam on which a first upright and a second upright are respectively connected; the model board trolley further comprises an arch truss, the bottom end of the arch truss is provided with an arch truss floor beam, and the two ends of the arch truss are respectively fixed on a cross beam; the lower end of the arch truss floor beam is uniformly provided with a pole cross beam, and the pole cross beam and the cross beam are respectively, movably and vertically provided with ten suspenders, the bottom ends of the suspenders are connected with the template; the template comprises a power cable trough template, a side ditch template, a communication signal cable trough template and an edge template, wherein movable concrete casting aggregate bins are arranged among power cable trough templates ...

Fuel cell system, control method thereof and vehicle

The invention discloses a fuel cell system, a control method thereof and a vehicle. The fuel cell system comprises a fuel cell stack, a gas supply system, a stack cooling system, a controller and a heating system, the heating system comprises a first heating unit, a first switch unit and a second heating unit; the first end of the first heating unit is electrically connected with the positive electrode of the fuel cell stack, and the second end of the first heating unit is electrically connected with the first end of the first switch unit; the second end of the first switch unit is electrically connected with the first end of the second heating unit, and the second end of the second heating unit is electrically connected with the negative electrode of the fuel cell stack; the first heating unit is used for heating the cooling liquid in the first pipeline; and the second heating unit is used for heating at least part of the single batteries in the second battery part. According to the invention ...

Semiconductor engine driving technology for new electric vehicle

A new semiconductor engine driving technology for an electric vehicle is provided. A working principle of the present invention is in a completely different way from conventional batteries because there is no battery stack like a normal battery. The reason is that during the charging and discharging process, reversible electrochemical reaction does not occurs on the electrode, but the flowing charged graphene polymer porous microspheres is entered into an ion membrane reaction cell and a semiconductor capacitor accumulator to generate a low voltage current. The semiconductor capacitor accumulator is formed by a plurality of PN junction films connected in series and parallel, and is connected with an electric motor to form an automobile engine to form a new capacitive driving circuit. 1. An automotive semiconductor capacitive driving system comprising: a Faraday capacitor collector module mounted on a vehicle precursor , charged solution containing a large amount of graphene polymer porous microspheres , a diaphragm reaction tank , two filling tanks respectively with a circulation pump and a motor driven by a front wheel and a rear wheel.2. The automotive semiconductor capacitive driving system claim 1 , as recited in claim 1 , wherein a basic structure of the Faraday semiconductor capacitor collector module comprises dozens of parallel semiconductor PN film materials wrapped to form a sealed current collector; a positive electrode and a negative electrode of graphene are provided between the semiconductor films and are isolated by electrical isolation ion membrane claim 1 , wherein a container is made of polyethylene plastic claim 1 , and connected to the ion membrane reaction tank.3. The automotive semiconductor capacitive driving system claim 1 , as recited in claim 1 , wherein the Faraday semiconductor capacitor collector module is a new semiconductor product in which positive charges and negative charges form a working circuit by a semiconductor reaction ...

Tunnel water drainage tank bank protection device

The utility model provides a tunnel water drainage tank bank protection device, including aperture plate, many dead levers, the aperture plate with dead lever fixed connection, the dead lever inserts in tunnel water drainage tank's the slope. Have and prevent down that basin slope earth, rubble can act on in the slope surface current advances the cistern to for the suction pump alleviates work load, increase the life of motor, guarantee the production safety, improve production efficiency.

Oil-cooling motor cooling loop

The invention provides an oil-cooling motor cooling loop. On the basis of continuing to use a transmission oil way, two oil cooling passages are formed by dividing before entering a transmission, and following two oil ways are adopted to cool a motor; before a main oil way enters the transmission, a part of oil is branched into a motor shell, and the end of a stator is cooled through oil holes in the motor shell; after being out of a transmission shaft, transmission oil passes an oil way on a rotor support, and spraying of the oil is driven through rotation of a rotor, so that the oil is completely sprayed to the end of the stator to achieve the objective of cooling the motor. The transmission oil is used to cool the motor, and no extra water-cooling cooling motor is adopted, so that own oil cooling system of the transmission is fully utilized, and no extra cooling mechanism needs to be added.

A monitoring system of mixing dynamical vehicle torsional moment

The invention describes a safety monitoring system and a monitoring method for the torque output by a power assembly of a hybrid vehicle. The safety monitoring system and the monitoring method can be used for preventing the entire output torque from increasing and reducing accidently to provide relatively reliable protection for every module in the hybrid system, thereby ensuring the safety performance of the hybrid system. The torque monitoring of the safety monitoring system relates to three main controllers, including a hybrid control unit, an engine management system and the hybrid safety monitoring system, and respectively monitors the real output torque of the entire vehicle, a motor and the engine; the system can monitor the entire torque in normal mode and failure mode; the monitoring in normal mode can ensure the accurate explain of the entire real output torque; while the monitoring in failure mode can limit the entire real entire output torque.

Metal bearing thrust pole rubber connector assembly

The utility model provides a metal bearing thrust pole rubber connector assembly, vulcanize the layer including back shaft, shock attenuation, the back shaft is that the middle -end is spheroidal spherical round pin axle, the tight cover of excircle of sphere round pin axle has the metal bearing, and closely the laminating is outer at the metal bearing on shock attenuation vulcanization layer, and it is fixed spacing that the retaining ring is passed through at a shock attenuation vulcanization layer both ends, the metal bearing then vulcanizes between the layer fixedly in the excircle and the shock attenuation of sphere round pin axle. The retaining ring is provided with the dustproof layer of vulcanizing with the clearance of the excircle of spherical round pin axle, and the dustproof one end of vulcanizing the layer is vulcanized at the retaining ring edge, in addition one end vulcanize fix at the sphere round pin epaxial. The utility model discloses use the metal bearing to make intensity ...

Connecting rod fixing device for thoracolumbar vertebral fracture and preparation method of connecting rod fixing device

The invention discloses a connecting rod fixing device for thoracolumbar vertebral fracture and a preparation method thereof.The connecting rod fixing device comprises a connecting piece, the connecting piece is in a rod shape and is made of titanium alloy, at least one end of the connecting piece is connected with a porous structural part, and the porous structural part is made of an autolytic material; the porous structural part is provided with a three-dimensional communicated porous structure, the three-dimensional communicated porous structure is filled with crosslinked hydrogel, the connecting part is arranged on the fusion section, and the porous structural part is arranged on the non-fusion section. Selective autolysis can be carried out on the porous structural part of the non-fusion section, so that the movement function of the spine is recovered, stress increase and degeneration of adjacent sections caused by fracture long section fixation are reduced, post-operation nail taking ...

Polymer self -lubricating body distance rod rubber connector assembly

The utility model provides a polymer self -lubricating body distance rod rubber connector assembly, including the buffer layer that back shaft and back shaft outer fringe cover were wrapped up in, its characterized in that: the back shaft is that the middle -end is spherical round pin axle, the buffer layer is polyurethane elastomer, the tight cover of excircle of spherical round pin axle has a polymer self -lubricating body, the external layer of the polymer self -lubricating above -mentioned polyurethane elastomer that closely laminates, and polyurethane elastomer's both ends are passed through the retaining ring and are fixed spacingly with the elasticity jump ring, the polymer self -lubricating body is then fixed between the excircle of sphere round pin axle and polyurethane elastomer, utilizes the polymer self -lubricating body to fix between the excircle and polyurethane elastomer of sphere round pin axle, can play lubrication action with the bearing that touches to sphere round pin ...

Air conditioning system for hybrid power automobile

The invention discloses an air conditioning system used for hybrid vehicles and a control method thereof. The air conditioning system comprises an air conditioning controller (1), an air conditioningswitch (2), a blower (3), an air conditioning device (4), an engine (5), an engine management system (6) and a hybrid controller (7); the air conditioning controller (1) detects that whether the current temperature of the vehicle is in a reasonable range and when the current temperature in the vehicle is over the range, the air conditioning controller (1) informs the hybrid controller (7) of not allowing to carry out idle speed stop. The invention can also keep the temperature in the vehicle under the condition that the hybrid vehicle carries out idle speed stop by carrying out simple improvement on the basis of the traditional vehicle air conditioner and the cost is low.

Power assembly of full electric vehicle electric drive system

The invention provides a power assembly of a full electric vehicle electric drive system. The invention has a core that the power assembly is provided with an integral integration power assembly design consisting of one set of planetary gear train mechanism and two sets of drive motors; the motors and the transmission shaft of the power assembly adopt a coaxial design; two sets of motors are respectively connected with a planetary gear sun gear and a gear ring; two motors are in coordination control to realize stepless speed regulation; for an electric vehicle which requires high performance, an original single big motor is changed into two small motors for input, and the optimal matching of the revolving speed, the torque and the high efficiency area of the motors can be realized so as to realize the low cost and the high reliability of motor miniaturization, realize the high efficiency of the electric drive system and improve an endurance mileage to the maximum limit. Meanwhile, a speed ...

Electric automobile motor temperature sensor system and detection method thereof

The invention relates to an electric automobile motor temperature sensor system and a detection method thereof. The electric automobile motor temperature sensor system comprises a drive motor, three temperature sensors and a drive motor control component, wherein the drive motor is provided with a stator slot; the three temperature sensors are arranged in the stator slot and are used for detecting the temperature of the motor and outputting the temperature information to the drive motor control component; and the drive motor control component is used for collecting the data sent by the three temperature sensors and outputting the motor temperature after the collected data is comprehensively judged.

Support system for construction of straight-line section of cantilever beam at soft foundation and erecting method of support system

The invention provides a support system for construction of a straight-line section of a cantilever beam at a soft foundation and an erecting method of the support system. The support system comprises a first steel pipe of which the bottom is connected with a bearing platform and a second steel pipe inserted in the soft foundation; a cross strut and a diagonal bridging are connected between the first steel pipe and the second steel pipe; a bailey truss is arranged at the top ends of the first steel pipe and the second steel pipe; a triangular cantilever support is connected to the end end of the bailey truss; the triangular cantilever support comprises a cross beam and a longitudinal beam perpendicular to each other; the longitudinal beam is connected with the bailey truss; the cross beam is level with the top end of the bailey truss; lumps of wood and formworks are further paved on the top ends of the bailey truss and the triangular cantilever support. After the poured concrete of the ...

Air conditioning system for hybrid power automobile

The invention discloses an air conditioning system used for hybrid vehicles and a control method thereof. The air conditioning system comprises an air conditioning controller (1), an air conditioning switch (2), a blower (3), an air conditioning device (4), an engine (5), an engine management system (6) and a hybrid controller (7); the air conditioning controller (1) detects that whether the current temperature of the vehicle is in a reasonable range and when the current temperature in the vehicle is over the range, the air conditioning controller (1) informs the hybrid controller (7) of not allowing to carry out idle speed stop. The invention can also keep the temperature in the vehicle under the condition that the hybrid vehicle carries out idle speed stop by carrying out simple improvement on the basis of the traditional vehicle air conditioner and the cost is low.

Testing system of hybrid power motor and testing method thereof

The invention relates to a testing method using a testing system of a hybrid power motor, wherein an engine, a motor and a power assembly of a gear box are assembled on the production line by one time; the power assembly is directed transported to a testing bench; firstly, the calibration of a motor position sensor is conducted; next, the reliability test of the motor is conducted; the testing system is provided with a calibration controller which conducts the calibration to the motor position sensor; the testing system also comprises a direct-current power cabinet, a PC computer, a three-phase converter box and a safety micro-control switch, wherein the phase a, the phase b and the phase c of the motor are connected with the calibration controller by the three-phase converter box; the calibration controller is electrified by the direct-current power cabinet and conducts communication with the PC computer by a CAN wire; the PC computer controls the power cabinet by a communication wire; ...

High-strength low-parking-effect 6-series aluminum alloy and preparation method thereof

The invention relates to a 6-series aluminum alloy with high strength and low parking effect and a preparation method of the 6-series aluminum alloy, and the 6-series aluminum alloy comprises the following components in percentage by mass: 0.70-1.20% of Mg; 0.80% to 1.30% of Si; 0.50% or less of Cu; mn: less than or equal to 0.60%; less than or equal to 0.30% of Cr; zr: less than or equal to 0.20%; 0.05% to 0.20% of Sn; fe: less than or equal to 0.35%; other inevitable impurity elements and the balance of Al. The Mg/Si ratio and a trace amount of Sn are strictly limited, so that the obtained product has excellent strength and low parking effect and has a good application prospect.

Electric pulse-assisted nitriding method of austenitic stainless steel

An electric pulse-assisted nitriding method of austenitic stainless steel comprises the following steps: preparing a nitriding medium, uniformly mixing wood chips, urea, sodium carbonate and ammonium chloride according to a mass ratio of 10:6:3:1; turning on a heat treatment furnace power supply to increase the temperature in the furnace to 500-700 DEG C, performing heat preservation for 1 hour, then performing electric pulse treatment for 10 minutes with pulse parameters of 6.5-9 KV of voltage and 7-10 Hz of frequency, stopping electric pulse, waiting for 50 minutes, then performing electric pulse treatment for 10 minutes with the same parameters, and repeating the above treatment for more than four times. The method of the invention improves the nitriding efficiency, shortens the nitriding time, and greatly reduces the energy consumption.

Mixed power motor torsional moment smoothness processing controlling system

The invention relates to the field of the motor control of the hybrid electric vehicle, in particular to a motor torque smooth processing control system. The invention first determines the target working mode of the motor and the value of the required torque according to the status decision of the overall vehicle, then processes the motor torque smoothly through a motor torque smooth processing subsystem, and finally the smoothly processed torque is sent to a motor controller MCU through CAN to realize the torque. The control system improves the time response property of the motor torque, and the output torque step length obtained by the control system is decreased gradually as time goes by, thus ensuring that the real smooth transition of the motor torque is realized and enhancing the driving comfort. Besides, the control system decides the current working mode of the motor through the output torque of the motor and is characterized by a feedback control, thus ensuring that the control ...

Measuring instrument

The invention discloses a measuring instrument which comprises a base, a shell, a first driving mechanism, a second driving mechanism, an image acquisition module, a battery module and a controller. The base is connected with the shell through a first driving mechanism; the first driving mechanism is used for driving the shell to rotate; the image acquisition module is rotationally installed on the shell, the second driving mechanism is installed on the shell and then used for driving the image acquisition module to rotate, and the first driving mechanism, the second driving mechanism and the image acquisition module are connected with the controller; the battery module is installed in the shell and used for supplying power to the first driving mechanism, the second driving mechanism, the image obtaining module and the controller, the image obtaining module comprises a first shell, a support, an adjusting mechanism, a mounting plate, a distance measuring module, a camera and a mounting ...

Molten iron sample production by vibration smashing method

The invention relates to a method for preparing iron water sample by vibration pulverizing method, which adopts vibrating mill. The method comprises the following steps: 1) confirming the iron water sample stations respectively before desulphurization and after desulphurization, and determining the equipment parameters accordingly, where the vibration time is 5-40 seconds, the sieving particle size is 120-200 mu, and the tungeten steel or tungsten carbide millstone is used; 2) preparing sampling according to the determined equipment parameters; 3) screening the sample according to the particle size required in the infrared instrument analysis, and putting into sample box. By adopting vibration mill to grind sample, the invention greatly reduces worker labor intensity, and increases working efficiency.

Flexible super-lyophobic coating as well as preparation method and application thereof

The invention provides a flexible super-lyophobic coating as well as a preparation method and application thereof. The preparation method comprises the following steps: spraying an adhesive and nanofibers on a pre-stretched substrate, fixing the nanofibers on an adhesive layer formed by the adhesive to obtain a coating, and carrying out curing and fluorination treatment to obtain the super-lyophobic coating. The flexible and stretchable super-lyophobic coating is efficiently and conveniently manufactured by a method of directly spraying the nanofibers on the pre-stretched elastic substrate, and the nanofibers are directly fixed on the elastic substrate, so that the limitation of direct growth of organic silicon nanofibers in the prior art is overcome, and the preparation complexity is reduced.

Data work quantification method for primary nursing workers

The invention discloses a primary nursing worker-oriented data work quantification method, which integrates information such as workload, work difficulty, work cost and digital literacy, and performs daily data workload quantification and calculation so as to support more fair and accurate workload calculation. According to the method, a traditional timing salary calculation mode is abandoned, data work quantification is carried out by integrating the task load, the task content, the task difficulty and the like, and people-oriented, accurate and efficient data work quantification is realized.

Novel medical sheet

The utility model relates to a medical care articles for use specifically are a novel medical sheet. It includes sheet body (1), sheet body (1) including double -deck sheet body (101), individual layer sheet body (102), its double -deck sheet body (101) set up in individual layer sheet body (102) center department, and the length of double -deck sheet body (101) is than the long 50mm of mattress length that it mated, its the mattress width that matees of the width ratio of double -deck sheet body (101) 50mm, the cavity of double -deck sheet body (101) inside be equipped with medical non -woven fabrics layer (103), its one side, sheet face below are equipped with has contact with hook face (104), its one side sheet the inside top is equipped with has contact with matte (105). Its beneficial effect lies in: simple structure, convenient to use, change clothes the convenience, save the resource, reduce hospital care articles for use use cost.

Engineering vehicle oil tank cover

An engineering vehicle fuel tank cap comprises a cap body, an O-shaped ring, a lock cylinder, a handle and a pressurizing plate, and a clamping groove is formed in the bottom end of the cap body. Handle with rotating shaft, handle and rotary shaft hinge, the rotating shaft penetrates through the cover and extends to the inner side of the cover; the rotating shaft is rotatably and hermetically connected with the cover, a pressing plate is fixed at the bottom end, a clamping piece is arranged on the outer side of the pressing plate and can penetrate through a long groove formed in the oil tank opening in the axial direction, a handle handheld part is hinged to the rotating shaft, and a cam is fixed on one side, close to the cover, of the handheld part; the lock cylinder is covered and fixed,an inserting rod is arranged at the bottom end of the lock cylinder, the inserting rod at the bottom end of the lock cylinder can be inserted into the through hole in the pressing plate by screwing the ...

Automotive integrated controller

The invention relates to an automotive integrated controller which comprises a motor controller MCU, a DC/DC converter and a high-voltage junction box, wherein the motor controller MCU and the DC/DC converter are integrated in a mechanical mode, and the high-voltage junction box is integrated in the integrated controller and is arranged on the upper portion of the integrated controller. Due to the fact that the high-voltage junction box is integrated in the integrated controller, a major loop of a power source is integrated, high-voltage wiring harness connection is reduced, system reliability is improved, the junction box integrates an electric air conditioner with a power circuit of a PTC, and then management of a power supply is more convenient. The major loop of the power source, the electric air conditioner and the PTC circuit are all of a plug type, installation is easy and replacement is convenient. A power cable is connected with a terminal through a bolt, and therefore large current ...

Safety gas meter with gas monitoring scheme

The invention discloses a safety gas meter with a gas monitoring scheme, which comprises a gas alarm and a safety control type gas meter, the gas alarm comprises a gas alarm end small wireless transmission module and a monitoring system, and the monitoring system is in communication connection with the gas alarm end small wireless transmission module; the safety control type gas meter comprises a gas meter body and a controller. The controller comprises a main control board and a meter end small wireless transmission module, the main control board comprises an MCU and an NB transmission module, the meter end small wireless transmission module is in communication connection with the MCU, the MCU is in communication connection with the NB transmission module, and the gas meter body is in communication connection with the MCU; the gas alarm end small wireless transmission module is in communication connection with the meter end small wireless transmission module, and the NB transmission module ...

A monitoring system for torsional moment of mixing dynamical vehicle

The invention describes a safety monitoring system and a monitoring method for the torque output by a power assembly of a hybrid vehicle. The safety monitoring system and the monitoring method can beused for preventing the entire output torque from increasing and reducing accidently to provide relatively reliable protection for every module in the hybrid system, thereby ensuring the safety performance of the hybrid system. The torque monitoring of the safety monitoring system relates to three main controllers, including a hybrid control unit, an engine management system and the hybrid safetymonitoring system, and respectively monitors the real output torque of the entire vehicle, a motor and the engine; the system can monitor the entire torque in normal mode and failure mode; the monitoring in normal mode can ensure the accurate explain of the entire real output torque; while the monitoring in failure mode can limit the entire real entire output torque.

High-strength and high-deformability 6-series aluminum alloy and preparation method thereof

The invention relates to a high-strength and high-deformability 6-series aluminum alloy and a preparation method thereof, and the high-strength and high-deformability 6-series aluminum alloy comprises the following components in percentage by mass: 0.70-1.20% of Mg; 0.65 to 1.10 percent of Si; 0.30% or less of Cu; mn: less than or equal to 1.00%; less than or equal to 0.30% of Cr; zr: less than or equal to 0.20%; fe: less than or equal to 0.35%; other inevitable impurity elements and the balance of Al. By strictly limiting the component content and providing a corresponding production process, the obtained product has excellent strength and deformation resistance, and can be applied to various parts of an automobile, especially functional structural parts, such as a front beam, a longitudinal beam, an anti-collision rod, a battery box and the like.

Molten iron sample production by vibration smashing method

The invention relates to a method for preparing iron water sample by adopting vibration pulverizing method, which adopts vibrating mill. The method comprises the following steps: 1) confirming the iron water sample stations respectively before desulphurization and after desulphurization, and determining the equipment parameters accordingly, where the vibration time is 5-40 seconds, the sieving particle size is 120-200 mu, and the tungsten steel or tungsten carbide millstone is used; 2) preparing sampling according to the determined equipment parameters; 3) screening the sample according to the particle size required in the infrared instrument analysis, and putting into sample box. By adopting vibration mill to grind sample, the method provided by the present invention greatly reduces worker labor intensity, and increases working efficiency.

Pregnancy vulvareczema nursing powder and preparation method thereof

The invention discloses pregnancy vulvareczema nursing powder and a preparation method thereof, and aims to realize nursing of pregnancy vulvareczema. The preparation method is characterized by comprising the following steps: (1) extracting volatile oil from tall gastrodia fruit, shiny-leaved birch bark coarse powder, stir-fried green bean coarse powder, poncirus bark coarse powder and fistular onion stalk for later use; (2) smashing oxhide gelatin into fine powder for later use; (3) performing water extraction and alcohol precipitation on Yunnan bulbophyllum herb, unpleasant swallowwort herb, towel gourd vegetable sponge, Chinese mosla herb, sea grass, wild buckwheat rhizome stem and leaf and decoction dregs obtained in the step 1, extracting centrifugate, concentrating and performing spray drying to obtain a primary material; (4) spraying the volatile oil obtained in the step (1) into the primary material obtained in the step (3), adding oxhide gelatin fine powder obtained in the step ...

Unsupervised sentence representation learning method based on synthetic data

The invention discloses an unsupervised sentence representation learning method based on synthetic data, which is characterized in that a generative model LSTM-VAE is used, an output sample of the generative model instead of real data is used as a data source, data enhancement of a discrete space and a continuous space is introduced to construct a positive sample, sentence representation is carried out in combination with a contrast learning method, and a sentence representation result is obtained. The method specifically comprises the steps of synthetic data generation, data enhancement in a continuous space and a discrete space, construction of positive samples of different visual angles and the like. Compared with the prior art, the method has the advantages that model performance is improved, excessive dependence on real data is avoided, experimental results show that sentence representation learned by GenCSE is equivalent to or even better than sentence representation learned from ...

Electric drive power system for all-electric vehicles

The invention relates to the technical field of all-electric vehicles, in particular to an electric drive power system for all-electric vehicles. The system comprises a main drive motor, an auxiliary drive motor, a reducer, and a transmission shaft. The reducer is provided with two input ports. One input port is coaxially connected with the main drive motor, and the other input port is coaxially connected with the auxiliary drive motor through a clutch. An output wheel system on the other side of the auxiliary drive motor is connected with an air conditioner compressor. The two low-power drive motors are provided and replace a single large high-power motor originally required by vehicles, and the defects caused by the use of the high-power motors are avoided on the premise that power output is met; power output of the main and auxiliary drive motors is controlled through the reducer, the clutch and the wheel system, and usage requirements in different modes are met.

Preparation method of 6-series aluminum alloy with high strength and low parking effect

The invention relates to a preparation method of a 6-series aluminum alloy with high strength and low parking effect, in the production process, during online cooling after extrusion, when the surface temperature of a profile is cooled to 210 +/-10 DEG C, manual rapid cooling is stopped, and then the profile is naturally and slowly cooled to the room temperature. According to the method, fine control is carried out in the quenching cooling process, cooling is stopped when the product is cooled to the aging temperature, then natural air cooling is carried out, the strength loss of the obtained product is smaller than 10 MPa after the product is extruded and placed for one month, and the good market application prospect is achieved.

Distributed anti-mosquito photovoltaic power generation energy storage device

The invention discloses a distributed anti-mosquito photovoltaic power generation energy storage device, and belongs to the technical field of photovoltaic power generation, the distributed anti-mosquito photovoltaic power generation energy storage device comprises a photovoltaic panel, a cleaning assembly is arranged on one side of the photovoltaic panel, and mounting frames are fixedly connected to four corners of the bottom of the photovoltaic panel. According to the solar cleaning device, a heat conduction block can transfer heat of external sunlight into thermal expansion liquid, so that the thermal expansion liquid expands when heated to drive a piston to move, gas in an elastic air bag is conveyed into a contraction air bag, and the contraction air bag expands to drive a rectangular sliding block, a cleaning block and a guide rod to move; the surface of the photovoltaic panel is automatically cleaned through the cleaning block, sand dust and external impurities in the air are prevented ...

Semiconductor device and method for manufacturing the same

The present disclosure provides a semiconductor device and a method for manufacturing the same, and relates to the field of semiconductor technologies. The manufacturing method includes: providing a substrate and forming a film layer stack structure thereon; etching the film layer stack structure to form a first region containing a through hole through which the substrate is exposed and a second region containing a hole section through which the substrate is not exposed; and patterning and etching the second region to remove the film layer stack structure within the second region.

SEMICONDUCTOR DEVICE AND METHOD FOR PREPARING SEMICONDUCTOR DEVICE

A method for preparing a semiconductor device, including providing a substrate, where a word line structure is formed in the substrate; a bit line supporting layer includes a first oxide layer and a first nitride layer. A bit line structure is formed in the first nitride layer, and the first oxide layer is formed on both sides of the bit line structure and located in the first nitride layer; patterning the supporting structure to form a first via corresponding to the bit line structure; and etching the bit line supporting layer to a preset height along the first via, adjusting an etching parameter and a selective etching ratio of etching gas for an oxide layer to a nitride layer, and continuing to etch the bit line supporting layer until the bit line structure is exposed, to form a polymer layer above the bit line structure. 1. A method for preparing a semiconductor device , comprising:providing a substrate, wherein a word line structure is formed in the substrate and a supporting structure is formed on the substrate, the supporting structure comprising a bit line supporting layer and a word line supporting layer above the word line structure, wherein a bit line structure is formed in the bit line supporting layer, the bit line supporting layer comprises a first oxide layer and a first nitride layer, the bit line structure is formed in the first nitride layer, and the first oxide layer is formed on both sides of the bit line structure and located in the first nitride layer;patterning the supporting structure to form a first via corresponding to the bit line structure in the bit line supporting layer; andetching the bit line supporting layer to a preset height along the first via, adjusting an etching parameter and a selective etching ratio of etching gas for an oxide layer to a nitride layer, and continuing to etch the bit line supporting layer until the bit line structure is exposed, to form a polymer layer above the bit line structure, wherein the polymer layer is ...

METHOD AND APPARATUS FOR DIGITAL IMAGE QUALITY EVALUTATION

This invention provides method and apparatus for quality evaluation of digital image to be used in the field of communication. The invention is used to tackle with the problem caused by the differences between the representation space of the digital image and the observation space. The digital image quality evaluation method calculates the objective quality of the digital image reflected in the observation space, while the calculation part is completed in the space to be evaluated. The digital image quality evaluation apparatus includes a distortion value generation module, a distortion value processing module, and a digital image quality evaluation module. The invention can provide a more accurate and fast objective quality calculation method in the observation space for the digital image in the space to be evaluated. The method of the invention is applied to digital image or digital sequence which can provide the accurate rate allocation scheme for the compression coding, and the coding performance can be greatly improved in the coding tool of digital image or digital video. 1. A digital image quality evaluation method for measuring the quality of a digital image to be evaluated in observation space , the method comprising:summing the absolute value of the pixel values of the respective pixel group of the digital images in the space to be evaluated and the digital images in the reference space pixel by pixel to obtain the distortion values; processing the distortion values of the digital images in the space to be evaluated according to the distribution of pixel groups in observation space; measuring the quality of the digital images in the space to be evaluated by using the distortion value of the pixel groups of the entire digital image to be evaluated after the processing.2. The method of claim 1 , wherein the pixel group comprises at least one of the following expressions:a) one pixel;b) one set of spatially continuous pixels in the space;c) one set of ...

Method for manufacturing semiconductor structure and semiconductor structure

In the method for manufacturing a semiconductor structure, a film structure is formed on a substrate, a pattern transfer layer is formed on the film structure, a plurality of holes are defined on the pattern transfer layer, and the pattern transfer layer is flattened; the film structure is etched through the holes to form capacitor holes in the film structure.

Semiconductor device and preparation method therefor

High-strength and high-toughness impact-resistant energy-absorbing al-mg-si alloy

The present invention belongs to the technical field of aluminum alloy materials, and in particular relates to a high-strength and high-toughness impact-resistant energy-absorbing Al-Mg-Si alloy. The Al-Mg-Si alloy of the present invention comprises Mg 0.40-1.00%, Si 0.50-0.90%, Mn ≤ 0.60%, Cr ≤ 0.30%, Fe ≤ 0.25%, Al 96.8-99.1% in percentage by mass, wherein Si_free=Si-0.3×(Mn+Fe+Cr), a mass ratio of Mg/Si_free is 0.72-1.40, and a percentage by mass of Mg+2Si_free is 1.40%-2.40%. The aluminum alloy not only has excellent conventional mechanical properties, but also has good bending toughness and outstanding crushing and impact-resistant energy-absorbing properties.

Semiconductor device and method for preparing semiconductor device

A method for preparing a semiconductor device, including providing a substrate, where a word line structure is formed in the substrate; a bit line supporting layer includes a first oxide layer and a first nitride layer. A bit line structure is formed in the first nitride layer, and the first oxide layer is formed on both sides of the bit line structure and located in the first nitride layer; patterning the supporting structure to form a first via corresponding to the bit line structure; and etching the bit line supporting layer to a preset height along the first via, adjusting an etching parameter and a selective etching ratio of etching gas for an oxide layer to a nitride layer, and continuing to etch the bit line supporting layer until the bit line structure is exposed, to form a polymer layer above the bit line structure.

Topical composition for skin

The present disclosure relates to a topical composition for skin, which comprises a) a solid particle, which is a porous particle having surface openings, and has an average particle size of primary particles of 0.5 to 20 μm; b) at least one wax; c) at least one carbon chain-based oil; and d) at least one surfactant, and the composition optionally comprises water and has a water content of 5% or less based on the total mass of the composition.

High-strength and high-toughness impact-resistant energy-absorbing al-mg-si alloy

The present disclosure belongs to the technical field of aluminum alloy materials, and in particular relates to a high-strength and high-toughness impact-resistant energy-absorbing Al—Mg—Si alloy. The Al—Mg—Si alloy of the present disclosure comprises Mg 0.40-1.00%, Si 0.50-0.90%, Mn≤0.60%, Cr≤0.30%, Fe≤0.25%, Al 96.8-99.1% in percentage by mass, wherein Si free =Si—0.3×(Mn+Fe+Cr), a mass ratio of Mg/Si free is 0.72-1.40, and a percentage by mass of Mg+2Si free is 1.40%-2.40%. The aluminum alloy not only has excellent conventional mechanical properties, but also has good bending toughness and outstanding crushing and impact-resistant energy-absorbing properties.