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1022 results about "Automatic transmission" patented technology

An automatic transmission, also called auto, self-shifting transmission, n-speed automatic (where n is its number of forward gear ratios), or AT, is a type of motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually. Like other transmission systems on vehicles, it allows an internal combustion engine, best suited to run at a relatively high rotational speed, to provide a range of speed and torque outputs necessary for vehicular travel. The number of forward gear ratios is often expressed for manual transmissions as well (e.g., 6-speed manual).

AMT bearing operation state detection system and method under active and passive switching working condition

The invention relates to the technical field of automobile automatic transmission, and discloses an AMT bearing operation state detection system and method under an active and passive switching working condition, and the method comprises the steps: collecting real-time data through a vibration acceleration sensor, a current sensor, a temperature sensor and a rotating speed encoder, carrying out the preprocessing of envelope demodulation, Kalman filtering and the like, and carrying out the detection of the operation state of an AMT bearing; and generating a time-frequency characteristic matrix by using variational mode decomposition and Hilbert transform. And inputting the matrix into a probabilistic neural network model adopting a sliding time window mechanism, and outputting a bearing health state probability value. A multi-parameter state evaluation model optimized by a quantum genetic algorithm is constructed, an optimal feature combination is obtained, and early warning levels and maintenance suggestions are output through a belief rule base inference device in combination with a hierarchical diagnosis control model (including an acquisition layer, an analysis layer and an execution layer). The system is further provided with a signal verification module to ensure data reliability. According to the invention, multi-source data fusion and dynamic adaptive diagnosis are realized, and the state detection precision and real-time performance of the AMT bearing under complex working conditions are improved.
Owner:NANJING BEARING

Metal wire drawing production system

The invention relates to the technical field of metal wire machining, in particular to a metal wire drawing production system which is characterized in that after production order information is uploaded to a central control unit through a man-machine interaction APP, the central control unit commands an intelligent pay-off module to complete wire coil placement, and the APP can be used for personnel to check the system state and remotely access; the intelligent pay-off module ensures that the pay-off tension is stable by means of a tension sensor and a PID algorithm; the wire rod preprocessing module collects images by using a high-definition camera, and defect conditions are determined through preprocessing of the central control unit and analysis of a convolutional neural network; and the intelligent control module dynamically adjusts the rotating speed of the motor by adopting a variable-frequency speed regulation technology and combining various data according to the requirements of a wire drawing process, so that the whole production process is efficient, accurate and stable. Precise placement of the wire coil is achieved through the automatic recognition device and the automatic transmission equipment, the time needed by manual operation is greatly shortened, and the working efficiency of the whole pay-off link is improved.
Owner:SANSHUI JINDELI IND CO LTD

Automatic speed changing assembly and electric capstan with automatic speed changing assembly

The invention provides an automatic speed changing assembly which comprises a planetary gear speed reducing mechanism, a first-stage speed changing mechanism and a second-stage speed changing mechanism. An inner rotation driving member; the outer element is movably connected with the inner rotation driving part, so that the outer element can be driven to rotate under the driving of the inner rotation driving part, and the outer element is allowed to axially move between a first position and a second position relative to the inner rotation driving part; the driving disc is movably connected with the outer element, so that the driving disc can be driven to rotate under the driving of the outer element, and the driving disc is configured to be capable of changing between a first state in which the driving disc is combined with the power output element and a second state in which the driving disc is separated from the power output element; the first stage sun gear is configured to disengage from the outer element in a first position of the outer element and to engage with the outer element in a second position of the outer element. According to the automatic speed changing assembly and the electric capstan with the automatic speed changing assembly, the automatic speed changing function can be achieved, and reliability is good.
Owner:ZHEJIANG HONGBIN IND & TRADE CO LTD

8at automatic transmission hydraulic system

PCT designated stage expiredWO2025097648A1Gearing controlAutomatic transmissionSolenoid valve
An 8AT automatic transmission hydraulic system. The system comprising: a first pressure regulating valve (10), a second pressure regulating valve (12), a first switching valve (4), a main oil circuit (33), a first solenoid valve (6), a second solenoid valve (11), a third solenoid valve (23), a fourth solenoid valve (13), a fifth solenoid valve (8), and a sixth solenoid valve (22). The first solenoid valve and the fifth solenoid valve are connected to a forward oil circuit (32); the sixth solenoid valve is connected to the main oil circuit; the second solenoid valve and the fourth solenoid valve are connected to a pressure reducing oil circuit (35); the first solenoid valve, the fifth solenoid valve, the third solenoid valve and the sixth solenoid valve are direct-drive solenoid valves; the second solenoid valve and the fourth solenoid valve are pilot solenoid valves. The direct-drive solenoid valves and the pilot solenoid valves are used to control each clutch of a transmission, simplifying the design of the pressure regulating valve, and reducing space occupied thereby.
Owner:ANHUI FULGENTAUTOMOTIVE POWERTRAIN SYSTEM CO LTD

Wafer bearing transmission system and wafer box automatic transmission method

The invention provides a wafer bearing transmission system and a wafer box automatic transmission method. The wafer bearing transmission system comprises an upper fixed carrying table, a multi-layer temporary storage carrying table system and a lower fixed carrying table which are distributed from top to bottom; the multi-layer temporary storage platform deck system comprises an upper layer and a lower layer; wherein the upper layer comprises a left temporary storage carrying table and a right temporary storage carrying table, the lower layer comprises a left temporary storage carrying table and a right temporary storage carrying table, and each temporary storage carrying table comprises a material storage table, a rodless cylinder and a linear guide rail, and the rodless cylinder and the linear guide rail are coupled with the material storage table.
Owner:SHANGHAI JIYI TECH CO LTD

Device for automatically conveying board-beating goods during board beating of air goods

The utility model relates to the field of air transportation, and discloses a device for automatically conveying board-beating goods during board-beating of air goods, which comprises a base, a lifting frame is arranged at the top of the right side of the base, a platform is arranged at the top of the lifting frame, a first conveying belt is arranged in the platform, and a supporting plate is arranged at the top of the left side of the base. A second conveying belt is arranged in the supporting plate, a lifting assembly is installed on the top of the base and comprises two first portals, the bottom ends of the first portals are fixedly connected to the top of the base, and a shell is fixedly connected to the top ends of the first portals. According to the conveying device, the chain is pulled through the driving mechanism, the chain wheel starts to rotate under the supporting of the first portal and the protection of the shell, meanwhile, the fixing block drives the first steel rope to pull the supporting plate and the second conveying belt to ascend and descend, goods are automatically and rapidly moved to the designated position, and the first conveying belt conveys the goods from the ground to the second conveying belt up and down; and the working efficiency and the safety coefficient are effectively improved.
Owner:马正举

Intelligent control method for automatic transmission of commercial vehicle based on VCU architecture

The invention relates to an intelligent control method for an automatic transmission of a commercial vehicle based on a VCU (vehicle control unit) architecture, which comprises the following steps of: based on a rule-based control mode, determining an operation mode of an AMT (automated mechanical transmission) of the vehicle according to an optimal principle according to a vehicle operation condition, a road condition and an intention of a driver, and performing intelligent switching control on economical and dynamic gear shifting rules of the transmission by the VCU, and the economic mode is selected under the condition that the accelerator opening degree is smaller than or equal to a preset threshold value under the light load or the small road slope or the uphill working condition. And selecting a power mode under the conditions of heavy load, relatively large gradient and greater accelerator opening degree than a preset value under the uphill working condition. Intelligent switching control is carried out on economical efficiency and dynamic property gear shifting rules of the transmission, it is guaranteed that an engine works in a proper rotating speed interval, and the climbing dynamic property is improved on the premise that economical efficiency is guaranteed. And meanwhile, the VCU improves the feeling of a driver on the fuel economy and the dynamic property of the vehicle through the multi-stage accelerator Map switching control method.
Owner:SHAANXI HEAVY DUTY AUTOMOBILE CO LTD

Automatic transmission device for day lily split charging tray

The utility model provides an automatic transmission device for a hemerocallis citrina subpackage charging tray, which belongs to the technical field of hemerocallis citrina processing and transportation and comprises a feeding assembly, a conveying assembly and a discharging assembly, the feeding assembly comprises a charging tray containing table and a feeding clamping gripper, the charging tray containing table and the feeding clamping gripper are arranged on the feeding side of the conveying assembly, and the discharging assembly is arranged on the discharging side of the conveying assembly. The charging tray containing table is used for containing the day lily charging trays, the feeding clamping gripper is used for clamping the day lily charging trays on the charging tray containing table and transferring the day lily charging trays to the conveying assembly, the discharging assembly comprises a discharging clamping gripper, and the discharging clamping gripper is arranged on the discharging side of the conveying assembly and used for clamping the day lily charging trays on the charging tray containing table and transferring the day lily charging trays to the conveying assembly. And the taking-down assembly is used for taking down the day-lily charging tray filled with day-lily on the conveying assembly. The function that the charging tray conveying assembly can automatically replace the daylily charging trays in the daylily charging tray conveying process is achieved, and manpower is saved.
Owner:NINGXIA ACADEMY OF AGRICULTURE AND FORESTRY SCIENCES INSTITUTE OF HORTICULTURE (NINGXIA FACILITY AGRICULTURE ENGINEERING TECHNOLOGY RESEARCH CENTER)

Full-automatic feeding machine of positioner

The invention discloses a full-automatic feeding machine of a positioner. The full-automatic feeding machine comprises a feeding bin device, a feeding transmission line arranged on one side of the feeding bin device and a feeding carrying device arranged between the feeding bin device and the feeding transmission line. A first lower vision mechanism is further arranged between the feeding bin device and the feeding conveying line. A first upper visual mechanism is arranged above the feeding bin device, and a second upper visual mechanism is further arranged above one end of the feeding conveying line. A series of working procedures such as automatic tray distribution of the material trays, automatic transferring and feeding of the positioners and automatic conveying of the carriers can be achieved, the automation degree is high, and the working efficiency is high.
Owner:SHENZHEN SHENGMAO TECH CO LTD

Dynamic response estimation method for planetary gear system of automatic transmission

The invention relates to a dynamic response estimation method for a planetary gear system of an automatic transmission, belongs to the technical field of planetary gears of the automatic transmission, and solves the problems that the dynamic response estimation method of the automatic transmission in the prior art is limited in prediction precision and is difficult to accurately simulate the dynamic response in the gear shifting process. Comprising the following steps: acquiring component parameters, bearing parameters and control piece parameters of the planetary gear transmission system; based on the parameters and the state of the control member, constructing a control member dynamic model; and based on the component parameters, the bearing parameters and the control piece parameters, constructing a planetary gear transmission system dynamics model. Within a given time step, when an inner ring and an outer ring of a supporting bearing rotate at the same time, calculating a dynamic load fo and deformation deltao of a planet carrier / bearing seat to the outer ring of the bearing and a dynamic load fi and deformation deltai of a transmission shaft to the inner ring, and calculating a dynamic response of a system at the current moment; and a fourth-order Runge-Kutta numerical iteration algorithm is used to solve the dynamic response in the next time step length, and loop iteration is carried out until dynamic characteristic estimation is completed.
Owner:CHINA NORTH VEHICLE RES INST

Anti-flameout control method and device for vehicle engine

The invention discloses a vehicle engine flameout prevention control method and device, a vehicle comprises an automatic transmission, the automatic transmission comprises a hydraulic torque converter and a starting clutch, and the hydraulic torque converter comprises a turbine. When the WRD working condition of wrong direction occurs during vehicle gear shifting, a turbine may reversely rotate, so that the load of an engine is increased, and the risk of flameout of the engine is caused. On the basis, whether the turbine reverse rotation working condition exists or not after vehicle gear shifting is firstly recognized. Meanwhile, no matter whether the WRD working condition occurs or not, the starting clutch is controlled to be connected after gear shifting of the vehicle, so that the power response speed of the vehicle is increased. And furthermore, when it is confirmed that the turbine reverse rotation working condition exists, the flameout risk degree of the vehicle is pre-estimated. When the flameout risk degree of the vehicle meets the preset condition, it is indicated that the flameout risk degree of the vehicle is high. At this time, the target oil pressure of the starting clutch is controlled to be reduced so as to open the starting clutch, cut off power transmission, relieve the turbine reverse rotation phenomenon and prevent the vehicle engine from stalling.
Owner:SAIC MOTOR

High-precision assembly testing device for satellite signal source production and assembly

The utility model discloses a high-precision assembly testing device for satellite signal source production and assembly, which belongs to the technical field of signal source production and assembly, and comprises a base marble, the top of the base marble is fixedly connected with a Y1 marble and a Y2 marble, and the Y1 marble and the Y2 marble are arranged on the base marble. A marble Z1 and a marble Z2 are fixedly connected between the top of the marble Y1 and the top of the marble Y2, a first transmission assembly is installed on the top of the marble Z1, a scanning assembly is installed on the first transmission assembly, and a reverse rotation assembly is connected with a feeding plate in a sliding mode. According to the automatic assembling machine, accurate motion control can be achieved, it is guaranteed that the positions and postures of all parts are accurate in the assembling process, most heavy and repeated work is undertaken through an automatic transmission assembly, the labor intensity of workers is relieved, and meanwhile the production quality and efficiency are improved.
Owner:SUZHOU SHUSUAN ARTIFICIAL INTELLIGENCE TECH CO LTD

All-in-one power domain control system and control method for new energy automobile

The invention belongs to the technical field of new energy vehicles, and particularly relates to an all-in-one power domain control system and method for a new energy vehicle. A thermal management module and / or a refueling door module and / or a traction motor control module and / or an integrated starter configured to control the temperature of an engine management module and / or an automatic transmission electronic control module and / or a shift control module and / or a hybrid vehicle control module and / or an air conditioning module and / or a battery and an electric motor the power generator control module and / or the DC-to-DC converter module and / or the slow charging module and / or the quick charging module execute corresponding functions, so that each functional module in the new energy automobile is directly and electrically connected with the main control module, and each functional module can directly send detected parameter data to the main control module; the delay caused by step-by-step data transmission is avoided, and the main control module can immediately feed back a corresponding control signal according to the obtained parameter data.
Owner:CHANGZHOU YIWEI POWER TECH CO LTD

Automatic winding and unwinding rolling and pressing machine

The utility model discloses a rolling and pressing machine capable of automatically winding and unwinding. The rolling and pressing machine comprises a bottom plate, a discharging roll, a first tensioning mechanism, an automatic rolling and pressing mechanism, a second tensioning mechanism, a collecting roll and a plurality of material passing shafts are sequentially installed from one end to the other end of the bottom plate, the tensioning mechanism comprises a fixed tensioning shaft and a lifting tensioning shaft, and the lifting tensioning shaft is located over the fixed tensioning shaft. The automatic rolling and pressing mechanism comprises a fixed rolling and pressing shaft and a movable rolling and pressing shaft which are arranged side by side; a transmission motor is installed on the bottom plate, and a rotor of the motor is in transmission connection with the fixed tensioning shafts, the fixed rolling shaft and the material passing shafts through a plurality of transmission chains. According to the rolling and pressing machine with the automatic winding and unwinding functions, the discharging mechanism, the tensioning mechanisms, the rolling and pressing mechanism and the collecting mechanism are combined together, a plurality of transmission chains and transmission gears are arranged to form an automatic transmission mechanism to achieve automatic rolling and pressing, and therefore the efficiency and the yield of rolling and pressing machining of thin film products are guaranteed.
Owner:苏州美艾仑新材料科技有限公司

Conveying device capable of automatically cooperating with piled parts

The invention relates to the technical field of automatic part conveying and machining, in particular to a conveying device capable of automatically cooperating with stacked parts, which comprises a material conveying assembly, the material conveying assembly is mounted on a first lifting assembly, and the material conveying assembly and the first lifting assembly are both electrically connected with a control assembly; the weighing assembly is located on the downstream of the material conveying assembly, a material conveying assembly is arranged between the material conveying assembly and the weighing assembly, and the weighing assembly and the material conveying assembly are both electrically connected with the control assembly; the material moving assembly is installed on a hydraulic assembly, clamping assemblies are installed on the material moving assembly and the material conveying assembly, and the material moving assembly and the clamping assemblies are electrically connected with the control assembly; and the discharging assembly is located on the downstream of the material moving assembly, the discharging assembly is installed on a second lifting assembly, and the discharging assembly and the second lifting assembly are both electrically connected with the control assembly.
Owner:CHONGQING JULIANG MASCH MFG CO LTD

Wafer loading port device and wafer conveying method

The invention relates to the technical field of wafer loading ports, and particularly discloses a wafer loading port device and method, and the device comprises a device main body, and a sealed wafer box which is disposed at the top of the device main body and can accommodate a wafer. The device main body comprises a lower casing, an upper wafer box which is arranged at the top of the lower casing and can be communicated with the closed wafer box to accommodate a wafer, and a backrest plate which is arranged at the top of the lower casing and is positioned on the side wall of the upper wafer box, and a through groove which is communicated with the interior of the upper wafer box and a process cavity where the wafer needs to reach during transportation is formed in the backrest plate; the backrest plate is in sliding sealing connection with a closing door for sealing the through groove, a moving assembly for driving the wafer to move up and down and a closing assembly for driving the closing door to be opened and closed are arranged in the lower case, the wafer conveying device can be compatible to multiple sizes, the wafer is high in cleanliness, automatic conveying is achieved, the structure is compact, and the application range is wide.
Owner:CENT SOUTH UNIV

Transmission mechanism in automatic transmission

The present invention provides a transmission mechanism in an automatic transmission device, belonging to the technical field of speed change. It solves the problem of poor working stability. It includes an output shaft, a low-speed input component arranged on the output shaft and capable of being engaged and disengaged therewith, and a high-speed input component arranged on the output shaft. Two driving blocks are hinged on the high-speed input component. When the high-speed input component rotates, the two driving blocks can swing and drive the output shaft to rotate. A linkage ring is also sleeved on the output shaft and the two drive blocks are unidirectionally transmitted. Two reset components corresponding to the two driving blocks are also hinged on the high-speed input component. When the speed of the high-speed input component is greater than that of the output shaft, the two reset components can push the linkage ring to rotate relative to the output shaft. When the speed of the output shaft is greater than that of the high-speed input component, the linkage ring can be driven to rotate to push the two reset components to swing. Both reset components are provided with an action part that can push the corresponding driving block to reset when it swings under the action of the linkage ring. It has the advantages of high working stability and sensitive gear switching.
Owner:YUHUAN DONGFANG AUTOMOBILE BRAKE FACTORY

Vehicle starting control method and device, electronic equipment and vehicle

The invention relates to a vehicle starting control method and device, electronic equipment and a vehicle. The vehicle starting control method comprises the steps that a vehicle is controlled to run in a rapid starting mode; calculating a first torque of an engine required to meet a vehicle starting condition in the rapid starting mode; when the brake release signal is received, the engine is controlled to output first torque, and meanwhile the clutch is controlled to be engaged to a first engagement process; under the condition that the brake loosening duration is smaller than the set starting duration and an accelerator opening signal is received, the vehicle is controlled to execute the rapid starting action; and under the condition that the accelerator opening signal is not received and the brake loosening duration is longer than or equal to the set starting duration, the vehicle is controlled to execute the automatic starting action. According to the vehicle starting control method, after the brake is released, the engine is controlled to output the first torque immediately, the clutch is controlled to be engaged immediately, the starting speed of the automatic transmission vehicle is effectively increased, and the automatic transmission vehicle can meet the application requirement for multi-scene rapid starting.
Owner:一汽解放青岛汽车有限公司 +1

Vehicle speed control method and apparatus, device, storage medium, and program product

A vehicle speed control method, comprising: when an automatic parking system is operating, an automatic transmission control unit (100a) of a vehicle (100) entering an automatic parking operating condition in response to a torque output from an engine of the vehicle (100); under the automatic parking operating condition, the automatic transmission control unit (100a) acquiring a vehicle speed control signal of the vehicle (100), the vehicle speed control signal comprising a braking force signal or a throttle signal, the braking force signal being issued by an electronic stability system of the vehicle (100) under control of the automatic parking system, and the throttle signal being issued by an engine management system (100b) of the vehicle (100) under control of the automatic parking system; and the automatic transmission control unit (100a) controlling a clutch (100a1) of an automatic transmission of the vehicle (100) on the basis of the vehicle speed control signal, so that the vehicle speed of the vehicle (100) is maintained at a target vehicle speed corresponding to the automatic parking operating condition. A vehicle speed control apparatus, used for implementing the vehicle speed control method. A computer device, used for performing the vehicle speed control method. A computer-readable storage medium, used for implementing the vehicle speed control method. A computer program product, used for implementing the vehicle speed control method. Such a configuration ensures the accuracy of vehicle speed control and improves vehicle speed control performance.
Owner:CHERY AUTOMOBILE CO LTD

Material transferring frame for continuous electroplating equipment

The invention relates to the technical field of storage transfer racks, in particular to a transfer rack for continuous electroplating equipment. Supporting side frames are welded and fixed on two sides of the surface; the inner sides of the two supporting side frames are each provided with an automatic material transferring frame structure used for automatically placing continuously-electroplated parts. The automatic material transferring frame structure comprises driven material transferring frame structures assembled on the two sides of the main frame correspondingly, and a plurality of automatic material table structures used for containing parts are annularly assembled on the automatic material transferring frame structure and the driven material transferring frame structures at equal intervals. The automatic material transferring device has the automatic material conveying and adjusting functions, continuous movement of materials can be achieved between the two automatic material transferring frame structures through the material continuous conveying structure, automatic feeding or discharging can be conducted at the same time, and parts on one automatic material transferring frame structure are automatically conveyed to the other automatic material transferring frame structure; the material conveying efficiency is improved, manual intervention is reduced, and the automatic production process is achieved.
Owner:TAIXING YONGZHI ELECTRONIC DEVICE CO LTD

Automatic brazing device based on graphite rod indirect heating and brazing method thereof

The invention discloses an automatic brazing device based on graphite rod indirect heating and a brazing method thereof, and relates to the technical field of precision part welding. The automatic brazing device comprises a high-frequency induction heating system, a graphite rod heating body, a temperature closed-loop control system, an automatic transmission and positioning system and a rapid cooling system; the automatic transmission and positioning system is used for clamping and moving a workpiece, the high-frequency induction heating system and the rapid cooling system are sequentially arranged along the moving path of the workpiece, a graphite rod heating body is arranged in an induction field and is subjected to induction heating, and the temperature closed-loop system monitors the temperature of the graphite rod heating body in real time and feeds back and controls the power of the induction field. And the rapid cooling system is arranged at a downstream station of the high-frequency induction heating system and is used for carrying out forced cooling on the welded workpiece. Rapid local heating, precise temperature control and instant cooling can be achieved, and therefore the elastic performance of a workpiece is effectively protected while the welding quality and efficiency are improved.
Owner:SHANGHAI HENGTUO HYDRAULIC CONTROL TECH

Automatic speed changing assembly and electric capstan with automatic speed changing function

The invention provides an automatic speed changing assembly and an electric capstan with an automatic speed changing function. The automatic speed changing assembly can be achieved by controlling a planetary gear mechanism or a fixed shaft gear mechanism through a mechanical mechanism, power can be transmitted through a transmission mechanism with the small transmission ratio when the load is small, and high efficiency is obtained on the premise that the dynamic property is met. When the load is large, power is transmitted through the transmission mechanism with the large transmission ratio, speed reduction and torque increase are achieved to the maximum extent, and the working requirement is met. According to the automatic speed changing assembly and the electric capstan with the automatic speed changing function, the automatic speed changing function can be achieved under the condition that no electric control element is used, and reliability is good.
Owner:ZHEJIANG NORMAL UNIV

Hydraulic system fluctuation testing device and method

A hydraulic system fluctuation testing device and method belongs to the technical field of hydraulic system fluctuation testing. The device is as follows: the oil supply system outlet of the automatic transmission oil pump is connected to the valve body inlet through a flow meter, and each oil pressure channel of the valve body is connected to the inlet of each load clutch through an oil circuit. The oil supply systems of all load clutches and the automatic transmission oil pump are connected to the EATS test equipment signal through a digital acquisition module. The electronic control system of the EATS test equipment is electrically connected to the solenoid valve in the valve body, and the oil temperature control system is connected to the ETAS test equipment signal. The oil temperature control system and the control system of the automatic transmission oil pump are electrically connected to the ETAS test equipment through a hard line. The method is: first test the joint working performance of the automatic transmission oil pump and the valve body, and then test the working performance of the hydraulic system. The present invention achieves a detailed and accurate evaluation of the overall stability of the hydraulic system by testing the joint working performance of the automatic transmission oil pump, the valve body, and the load clutch.
Owner:HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD

Automatic transmission gear shifting control method and control device and vehicle with automatic transmission gear shifting control method and control device

PendingCN119467688Areduce workloadLow maintenance and repair costsGearing controlDriving currentAutomatic transmission
The invention discloses an automatic transmission gear shifting control method and device and a vehicle with the automatic transmission gear shifting control method and device. The control method comprises the steps that a speed signal is collected, and a gear shifting signal is obtained according to the speed signal; whether the gear shifting signal reaches the gear shifting range of the gear shifting curve or not is judged, if not, the gear shifting mode is not started, corresponding signals continue to be collected till the gear shifting signal reaches the corresponding gear shifting range, and an upshift or downshift instruction is sent out; and a gear shifting mode is entered, the TCU outputs the driving current of the corresponding gear electromagnetic valve, the current gear clutch is controlled to be separated, and the target gear clutch is controlled to be combined. In the invention, through closed-loop control based on the rotating speed signal, the dynamic response speed of the system can be improved, the gear shifting impact is reduced, the gear shifting quality is optimized, the workload of a driver is greatly reduced, and the working efficiency is improved.
Owner:SHANGHAI MICROPOWERS

Convoy travel control device

A target gear stage of the automatic transmission of the own vehicle (following vehicle) is determined based on the target acceleration (=required drive torque) and the target vehicle speed of the leading vehicle by the convoy participation time speed change control unit, and when the target gear stage and the actual gear stage of the own vehicle are different, the gear stage of the automatic transmission of the own vehicle is switched to the target gear stage in advance. Thus, the speed change of the following vehicle participating in the convoy traveling can be executed in advance on the gear stage for obtaining the driving force for following the leading vehicle, and disturbance of the convoy traveling is suppressed.
Owner:TOYOTA JIDOSHA KK

Piston spring return assembly for automatic transmission

A spring assembly for the clutch of an automatic transmission includes a plurality of springs residing between upper and lower retaining rings which are secured together with a plurality of fasteners. The spring assembly is compressed against the force of the springs when the clutch piston is applied to engage the clutch, and then expanded when the clutch piston is released to disengage the clutch. The fasteners of the spring assembly eliminate radial movement of the rings relative to one another and control the axial movement of either of the upper and lower spring retaining rings.
Owner:GOEREND TRANSMISSIONS INC

Diagnostic method for pressure sensor of double-clutch automatic transmission

The invention discloses a double-clutch automatic transmission pressure sensor diagnosis method, and relates to the technical field of pressure sensor fault prediction, and the method comprises the steps: collecting data of a double-clutch automatic transmission pressure sensor under different working conditions of a double-clutch automatic transmission, and synchronously recording environment data; the method comprises the following steps: preprocessing collected sensor data and environmental data, dynamically adjusting pressure thresholds under different working conditions according to historical sensor data and environmental data, constructing a self-adaptive correction factor model based on a current environmental parameter in combination with a dynamic coefficient, and obtaining a correction factor; correcting reading deviation, caused by temperature change, of a pressure sensor in the double-clutch automatic transmission to obtain a corrected deviation value; according to the method, the difference between the current environment temperature and the reference temperature is calculated, the correction factor is calculated by using the temperature coefficient, and the real-time measurement data is corrected, so that the reading accuracy of the sensor is remarkably improved. The method is very important for ensuring normal operation under different temperature conditions.
Owner:SMART WORKSHOP ENTERPRISE MANAGEMENT (WUXI) CO LTD

Automatic gearbox spindle assembly part sorting and dispatching logistics system and method

The invention discloses an automatic gearbox spindle assembly part sorting and dispatching logistics system and method. A standby material area, a sorting material area, a robot working area and a sorting station conveying line are arranged in parallel. The sorting station conveying line is sequentially provided with an empty frame station, a working station and a discharging station in the conveying direction. The working positions are provided with a code scanning position, a working position 1, a cache position 1, a cache position 2 and a working position 2 in the conveying direction; the standby material area and the sorting material area are sequentially a first-shaft gear placing area, a first-shaft differential gear placing area, a second-shaft first-gear gear placing area, a second-shaft second-gear gear placing area, a second-shaft third-gear gear placing area, a second-shaft reverse-gear gear placing area and a second-shaft placing area in the conveying direction of the sorting station conveying line. Repeated ex-warehouse and in-warehouse operation is avoided, switching is smoother, production switching time is greatly shortened, work order switching time is saved by about 30%, data transmission interfaces are reduced, data chaos caused by network fluctuation or interface jamming is prevented, and data are more accurate.
Owner:SHAANXI FAST GEAR CO LTD