Clutch control methods, devices and computer equipment

Abstract

This application relates to a clutch control method, apparatus, and computer device. The method includes: acquiring vehicle operating parameter information and environmental information; when the operating parameter information meets preset conditions, acquiring the current position and actual temperature of the vehicle's clutch, and acquiring the actual transmitted torque of the clutch based on the operating parameter information and the environmental information; updating a first characteristic association library of the clutch based on the current position, the actual temperature, and the actual transmitted torque; and controlling the clutch based on the operating parameter information and the updated first characteristic association library. This method enables the clutch to move to the correct position during vehicle operation.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a clutch control method, device, and computer equipment. Background Technology

[0002] As people's demands for driving comfort increase, commercial vehicles are gradually replacing manual transmissions with AMT (Automated Mechanical Transmission) to reduce the workload of drivers.

[0003] AMT (Automated Manual Transmission) controls the clutch actuator to perform corresponding clutch engagement actions to complete vehicle behaviors such as shifting gears, starting, and accelerating by sending commands to the clutch actuator. The current mainstream clutch control method is to first obtain the target torque of the vehicle through the accelerator pedal, and then obtain the current position of the clutch by looking up a table using the target torque, that is, to control the clutch movement using the position-torque control method.

[0004] However, during vehicle operation, clutch slippage and other factors inevitably occur, leading to inaccurate position-torque tables and consequently preventing the clutch from moving to the correct position. Summary of the Invention

[0005] Therefore, it is necessary to provide a clutch control method, device, and computer equipment that can enable the clutch to move to the correct position according to the target torque during driving, in order to address the above-mentioned technical problems.

[0006] In a first aspect, this application provides a clutch control method, the method comprising:

[0007] Obtain vehicle operating parameters and environmental information;

[0008] When the operating parameter information meets the preset conditions, the current position and actual temperature of the vehicle's clutch are obtained, and the actual transmitted torque of the clutch is obtained based on the operating parameter information and the environmental information.

[0009] The first characteristic association library of the clutch is updated based on the current position, the actual temperature, and the actual transmitted torque;

[0010] The clutch is controlled based on the operating parameter information and the updated first characteristic association library.

[0011] In one embodiment, the operating parameter information includes: gearbox gear position, vehicle acceleration, and vehicle frontal area; the environmental information includes the environmental slope angle.

[0012] The step of obtaining the actual transmitted torque of the vehicle based on the operating parameter information and the environmental information includes:

[0013] The driving resistance is determined based on the vehicle acceleration, the vehicle's frontal area, the environmental slope angle, and the preset vehicle mass.

[0014] The transmission ratio of the transmission system is determined based on the gearbox gear position and the preset gear ratio relationship library;

[0015] The actual transmitted torque of the clutch is determined based on the transmission ratio of the transmission system and the driving resistance.

[0016] In one embodiment, the operating parameter information further includes the accelerator pedal opening; controlling the clutch based on the operating parameter information and the updated first characteristic association library includes:

[0017] The target transmission torque of the clutch is determined based on the accelerator pedal opening and a preset first torque relationship library;

[0018] The target position of the clutch is determined based on the target transmitted torque, the actual temperature of the clutch, and the updated first characteristic association library.

[0019] In one embodiment, the method further comprises:

[0020] Upon receiving a vehicle start command, the clutch is controlled to move toward the flywheel, and the first wear amount of the clutch is obtained;

[0021] The pre-stored initial characteristic association library is updated based on the first wear amount and the pre-stored historical wear amount to obtain the first characteristic association library.

[0022] In one embodiment, updating the pre-stored initial characteristic association library based on the first wear amount and the pre-stored historical wear amount to obtain the first characteristic association library includes:

[0023] If the difference between the first wear amount and the historical wear amount is greater than a preset wear threshold, the initial feature association library is updated according to the difference between the first wear amount and the pre-stored historical wear amount to obtain the first feature association library;

[0024] If the difference between the first wear amount and the historical wear amount is equal to a preset wear threshold, the initial feature association library is directly determined as the first feature association library;

[0025] If the difference between the first wear amount and the historical wear amount is less than a preset wear threshold, the pre-stored original characteristic association library of the clutch is obtained, and the original characteristic association library is determined as the first characteristic association library.

[0026] In one embodiment, the method further comprises:

[0027] Upon receiving the first shift command, the initial transmission torque of the clutch is determined based on the operating parameter information, and the current temperature of the clutch is obtained.

[0028] The initial position of the clutch is determined based on the initial transmitted torque, the current temperature, and the first characteristic association library;

[0029] Control the clutch to move towards the initial position.

[0030] In one embodiment, controlling the clutch to move to the initial position includes:

[0031] During the process of controlling the clutch to move towards the initial position, the input shaft speed of the vehicle is obtained;

[0032] If the input shaft speed exceeds a preset first input shaft threshold, the clutch is controlled to move to a preset position;

[0033] If the input shaft speed does not exceed a preset first input shaft threshold, the clutch is controlled to move to the initial position.

[0034] In one embodiment, the method further comprises:

[0035] Upon receiving a second shift command, the clutch is controlled to disengage to a preset position.

[0036] Secondly, this application also provides a clutch control device, the device comprising:

[0037] The first acquisition module is used to acquire vehicle operating parameter information and environmental information;

[0038] The second acquisition module is used to acquire the current position and actual temperature of the clutch of the vehicle when the operating parameter information meets the preset relative slip conditions, and to acquire the actual transmitted torque of the clutch based on the operating parameter information and the environmental information.

[0039] The first update module is used to update the first characteristic association library of the clutch based on the current position, the actual temperature and the actual transmitted torque;

[0040] The first execution module is used to control the clutch according to the updated first feature association library.

[0041] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, characterized in that the processor executes the computer program to implement the steps of the clutch control method in any of the above embodiments.

[0042] The aforementioned clutch control method, device, and computer equipment acquire vehicle operating parameter information and environmental information during vehicle operation. When the operating parameter information meets preset conditions, the actual transmission torque of the clutch is obtained based on the operating parameter information and environmental information. Then, the first characteristic association library of the clutch is updated based on the current position, actual temperature, and actual transmission torque of the clutch. Since the current position of the clutch is obtained by searching the first characteristic association library based on the clutch temperature and the clutch target torque, this application calculates the actual transmission torque of the clutch to update the torque magnitude of the clutch at the current position and current temperature in the first characteristic association library. Then, the position of the clutch is controlled according to the updated first characteristic association library, so that the clutch can move to the correct position according to the torque required by the vehicle. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a flowchart illustrating a clutch control method in one embodiment;

[0045] Figure 2 This is a flowchart illustrating step S102 in one embodiment;

[0046] Figure 3 This is a flowchart illustrating step S104 in one embodiment;

[0047] Figure 4 This is a flowchart illustrating the clutch control method in another embodiment;

[0048] Figure 5 This is a flowchart illustrating step S402 in one embodiment;

[0049] Figure 6 This is a flowchart illustrating the clutch control method in another embodiment;

[0050] Figure 7 This is a flowchart illustrating step S603 in one embodiment;

[0051] Figure 8 This is a structural block diagram of the clutch control device in one embodiment;

[0052] Figure 9 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0054] As described in the background section, with increasing demands for driving comfort, commercial vehicles are gradually replacing manual transmissions with automatic transmissions to reduce driver workload. Most commercial vehicles are equipped with AMT (automatic manual transmission). AMT transmissions offer advantages such as high transmission efficiency, low cost, and good fuel economy; therefore, their application has become increasingly widespread in recent years.

[0055] The AMT controller sends commands to the clutch actuator to control the actuator to perform corresponding clutch engagement actions, completing vehicle behaviors such as shifting, starting, and accelerating. The current mainstream clutch control method is to first obtain the target torque of the vehicle through the accelerator pedal, and then obtain the current clutch position by looking up a table using the target torque. This is a position-torque control method to control clutch movement. This method is relatively simple, but during vehicle operation, clutch slippage and temperature rise are inevitable, which can lead to inaccurate position-torque tables. Frequent starts often result in clutch slippage during start-up, affecting the driving experience.

[0056] To address the aforementioned technical problems, in an exemplary embodiment, please refer to... Figure 1 This application provides a clutch control method, which includes steps S101 to S104.

[0057] S101: Obtain vehicle operating parameter information and environmental information.

[0058] It is understandable that during vehicle operation, the driver controls the vehicle's speed by pressing and releasing the accelerator pedal. The vehicle's controller can calculate the required torque of the clutch by measuring the accelerator pedal opening in real time and monitor the clutch temperature in real time. Based on the required torque and temperature, the controller then searches the first characteristic association library to determine the clutch position. During this process, the vehicle controller can also acquire vehicle operating parameters and environmental information, such as engine speed, input shaft speed, and the slope angle of the road. Based on these operating parameters, it determines whether the current clutch position is sufficient to transmit the required torque, and consequently, whether the clutch's first characteristic association library needs to be updated.

[0059] S102: When the operating parameter information meets the preset conditions, obtain the current position and actual temperature of the vehicle's clutch, and obtain the actual transmitted torque of the clutch based on the operating parameter information and environmental information.

[0060] The operating parameters include engine speed and input shaft speed. Meeting the preset conditions means that during gear shifting, the absolute value of the difference between the engine speed and the input shaft speed is greater than a preset differential threshold. If the operating parameters meet the preset conditions, i.e., the engine output torque exceeds the clutch's capacity at its current position (meaning the current clutch position does not match the clutch's required torque transmission), the vehicle controller can calculate the actual current transmission torque of the clutch based on the operating parameters and environmental information.

[0061] S103: Update the first characteristic association library of the clutch based on the current position, actual temperature and actual transmitted torque.

[0062] Specifically, the first characteristic association library of the clutch records the correlation between the clutch's temperature, transmitted torque, and position. That is, the first characteristic association library records how much torque the clutch can transmit at what temperature and position. Therefore, after calculating the current actual transmitted torque of the clutch, the transmitted torque of the clutch at the current position and current actual temperature recorded in the first characteristic association library can be updated based on the actual transmitted torque. Furthermore, the transmitted torque at all other positions at the current actual temperature can be updated based on the difference between the transmitted torque of the clutch at the current position and current actual temperature recorded in the first characteristic association library and the actual transmitted torque.

[0063] S104: Control the clutch based on the operating parameter information and the updated first characteristic association library.

[0064] Subsequently, the vehicle's overall controller continues to calculate the required torque of the clutch by measuring the opening of the accelerator pedal in real time, and monitors the temperature of the clutch in real time. Based on the required torque of the clutch and the temperature of the clutch, it searches the updated first characteristic association library to determine the position of the clutch, thereby enabling the clutch to move to the correct position according to the required torque of the clutch.

[0065] The aforementioned clutch control method acquires vehicle operating parameter information and environmental information during vehicle operation. When the operating parameter information meets preset conditions, it obtains the actual transmission torque of the clutch based on the operating parameter information and environmental information. Then, it updates the clutch's first characteristic association library based on the clutch's current position, actual temperature, and actual transmission torque. Since the clutch's current position is obtained by searching the first characteristic association library based on the clutch's temperature and target torque, this application calculates the clutch's actual transmission torque to update the clutch's torque value at the current position and temperature in the first characteristic association library. Then, it controls the clutch position based on the updated first characteristic association library, enabling the clutch to move to the correct position according to the torque required by the vehicle.

[0066] In one exemplary embodiment, please refer to Figure 2 Step S102 involves obtaining the actual transmitted torque of the vehicle based on operating parameter information and environmental information, including steps S201 to S203.

[0067] S201: Determine the driving resistance based on the vehicle acceleration, vehicle frontal area, environmental slope angle, and preset vehicle mass.

[0068] The operating parameters include gearbox gear position, vehicle acceleration, and vehicle frontal area, while environmental information includes the ambient slope angle. The vehicle's frontal area can be a preset value, or the vehicle controller can calculate the frontal area based on the vehicle's driving status. During vehicle operation, the vehicle controller can monitor the gearbox gear position, vehicle acceleration, and vehicle frontal area in real time, as well as obtain the ambient slope angle of the road the vehicle is traveling on, to calculate the vehicle's current driving resistance based on the vehicle acceleration, vehicle frontal area, ambient slope angle, and preset vehicle mass.

[0069] S202: Determine the transmission ratio of the transmission system based on the gearbox gear and the preset gear ratio relationship library.

[0070] The transmission ratio of a vehicle's drivetrain is generally related to the gears in the vehicle's gearbox. Therefore, the relationship between the gearbox gears and the drivetrain ratio can be pre-calibrated to form a gear ratio relationship library. After that, the drivetrain ratio can be directly determined based on the gearbox gears and the gear ratio relationship library.

[0071] S203: Determine the actual transmitted torque of the clutch based on the transmission ratio of the transmission system and the driving resistance.

[0072] Then, the actual transmitted torque of the clutch can be determined based on the transmission ratio of the transmission system and the driving resistance, and the first characteristic association library can be updated based on the actual transmitted torque.

[0073] In one exemplary embodiment, please refer to Figure 3 Step S104 involves controlling the clutch based on the operating parameter information and the updated first characteristic association library, including steps S301 and S302.

[0074] S301: Determine the target transmission torque of the clutch based on the accelerator pedal opening and the preset first torque relationship library.

[0075] The operating parameter information also includes the accelerator pedal opening, which is the accelerator pedal opening in the above embodiment. The vehicle controller continues to calculate the target transmission torque of the clutch by measuring the accelerator pedal opening in real time.

[0076] S302: Determine the target position of the clutch based on the target transmitted torque, the actual temperature of the clutch, and the updated first characteristic association library.

[0077] Meanwhile, the vehicle controller continues to monitor the actual temperature of the clutch in real time. Based on the clutch's required torque and actual temperature, it searches the updated first characteristic association library to determine the clutch's position, ensuring that the clutch moves to the correct position according to its required torque. It's understandable that during subsequent vehicle operation, the vehicle controller will continue to determine whether the current clutch position matches the required torque, updating the first characteristic association library again.

[0078] In one exemplary embodiment, please refer to Figure 4 The clutch control method of this application further includes steps S401 and S402.

[0079] S401: Upon receiving a vehicle start command, control the clutch to move toward the flywheel and acquire the first wear amount of the clutch.

[0080] In this application, each time the vehicle is started, the clutch must first undergo self-learning, that is, the clutch is controlled to move towards the flywheel and press against the flywheel. Assuming that the point where a new clutch is fully pressed against the flywheel is the clutch 0 point, the clutch moving towards the flywheel is negative, and vice versa is positive. If the clutch value is negative after pressing against the flywheel during the self-learning process, it is considered that the clutch is worn. The wear amount of this clutch self-learning is recorded as the first wear amount.

[0081] S402: Update the pre-stored initial characteristic association library based on the first wear amount and the pre-stored historical wear amount to obtain the first characteristic association library.

[0082] Then, the wear level of the clutch can be determined based on the difference between the first wear level and the pre-stored wear level from the last self-learning, i.e., the historical wear level. The initial characteristic association library is updated based on the difference between the first wear level and the historical wear level to obtain the first characteristic association library. The initial characteristic association library is the first characteristic association library obtained from the last update during the last driving process.

[0083] In one exemplary embodiment, please refer to Figure 5 Step S402 involves updating the pre-stored initial characteristic association library based on the first wear amount and the pre-stored historical wear amount to obtain the first characteristic association library, including steps S501 to S503.

[0084] S501: If the difference between the first wear amount and the historical wear amount is greater than the preset wear threshold, the initial characteristic association library is updated according to the difference between the first wear amount and the pre-stored historical wear amount, and the first characteristic association library is obtained.

[0085] If the difference between the first wear amount Δ1 and the historical wear amount Δ2, Δ2-Δ1, is greater than the preset wear threshold, it indicates that the clutch has worn during the last driving process. The initial characteristic association library needs to be updated by the difference between the first wear amount and the pre-stored historical wear amount, Δ2-Δ1. That is, Δ2-Δ1 is added to all items of the clutch position in the initial characteristic association library to form the first characteristic association library. The preset wear threshold can be 0.

[0086] S502: If the difference between the first wear amount and the historical wear amount is equal to the preset wear threshold, the initial characteristic association library is directly determined as the first characteristic association library.

[0087] If the difference between the first wear amount and the historical wear amount is equal to the preset wear threshold, it indicates that the clutch did not wear during the last driving process. Therefore, the initial characteristic association library, that is, the first characteristic association library obtained from the last update of the last driving process, can be directly determined as the first characteristic association library.

[0088] S503: If the difference between the first wear amount and the historical wear amount is less than the preset wear threshold, obtain the pre-stored original characteristic association library of the clutch and determine the original characteristic association library as the first characteristic association library.

[0089] If the difference between the first wear amount and the historical wear amount is less than the preset wear threshold, it means that the vehicle has been replaced with a new clutch. Therefore, the original feature association library of the new clutch can be obtained according to the model of the new clutch. The original feature association library is the feature association library set by the clutch at the factory.

[0090] In one exemplary embodiment, please refer to Figure 6 The clutch control method of this application further includes steps S601 to S603.

[0091] S601: Upon receiving the first shift command, determine the initial transmission torque of the clutch based on the operating parameter information and obtain the current temperature of the clutch.

[0092] The first shift command refers to shifting from neutral to drive. When the driver presses the brake pedal and moves the shift lever from neutral to drive, the vehicle controller determines the initial transmission torque Ta of the clutch based on the operating parameter information and obtains the current temperature of the clutch.

[0093] The operating parameters include the transmission gear position, axle condition, and transmission oil temperature. The initial transmitted torque is calculated by adding the transmission system resistance torque and the transmission system acceleration resistance. The magnitude of the transmission system resistance torque can be obtained through transmission system bench testing and calibration, or it can be calculated using the transmission system moment of inertia and the current transmission oil temperature. The transmission system moment of inertia can be determined based on the transmission gear position and axle condition. The transmission system acceleration resistance can be determined through calibration, or it can be calculated using the transmission gear position and axle condition.

[0094] S602: Determine the initial position of the clutch based on the initial transmitted torque, current temperature, and the first characteristic association library.

[0095] Subsequently, the vehicle controller can control the automatic transmission control unit to search the first characteristic association library based on the initial transmitted torque and the current temperature to determine the initial position of the clutch.

[0096] S603: Controls the clutch to move to the initial position.

[0097] Then, the automatic transmission control unit controls the clutch to move back to the initial position.

[0098] In one exemplary embodiment, please refer to Figure 7 Step S603, controlling the clutch to move to the initial position, includes steps S701 to S703.

[0099] S701: During the process of controlling the clutch to move to the initial position, the input shaft speed of the vehicle is obtained.

[0100] The operating status information also includes the vehicle's input shaft speed, which refers to the rotational speed of the transmission's input shaft. The engine transmits power to the transmission's input shaft via the clutch. The transmission's input shaft speed can be monitored in real time as the clutch moves towards its initial position.

[0101] S702: When the input shaft speed exceeds the preset first input shaft threshold, control the clutch to move to the preset position.

[0102] If the input shaft speed exceeds the preset first input shaft threshold during the movement of the clutch toward the initial position, it indicates that the initial position does not match the initial transmitted torque. The clutch needs to be moved to the preset position, which can be obtained through calibration. The preset position is located on the side of the initial position away from the flywheel.

[0103] S703: If the input shaft speed does not exceed the preset first input shaft threshold, control the clutch to move to the initial position.

[0104] If the input shaft speed does not exceed the preset first input shaft threshold during the clutch's movement to the initial position, it indicates that the initial position matches the initial transmitted torque, and the clutch can be controlled to move to the initial position.

[0105] In one exemplary embodiment, the clutch control method further includes the step of controlling the clutch to disengage to a preset position upon receiving a second shift command.

[0106] The second shift command is for shifting gears during driving after the vehicle starts. After receiving the second shift command, the vehicle controller can directly control the clutch to disengage to the preset position. After the shift is completed, the transmission torque of the clutch is determined according to the accelerator pedal opening, and then the clutch position is determined.

[0107] In a detailed embodiment, when the vehicle starts, the clutch is first controlled to perform self-learning. Assuming the point where the new clutch is fully engaged with the flywheel is clutch point 0, clutch movement towards the flywheel is negative, and vice versa. The clutch is controlled to move until it is fully engaged with the flywheel, and the first wear amount Δ1 of the clutch is obtained. This is then combined with the pre-stored wear amount recorded during the previous drive, i.e., the historical wear amount Δ2, to obtain the difference Δ2-Δ1 between the first wear amount and the pre-stored historical wear amount. If the difference Δ2-Δ1 is greater than a preset wear threshold, the initial characteristic association library needs to be updated using the difference Δ2-Δ1 between the first wear amount and the pre-stored historical wear amount to obtain the first characteristic association library. If the difference Δ2-Δ1 is equal to the preset wear threshold, the initial characteristic association library can be directly determined as the first characteristic association library. If the difference Δ2-Δ1 is less than the preset wear threshold, the original characteristic association library of the new clutch can be obtained, and the original characteristic association library can be determined as the first characteristic association library.

[0108] After determining the first characteristic association library, when the driver depresses the brake pedal and shifts the gear lever from neutral to drive, the vehicle controller determines the initial transmission torque of the clutch based on the transmission gear, axle status, and transmission oil temperature. Then, based on the current clutch temperature and initial transmission torque, it searches the first characteristic association library to determine the initial position of the clutch and controls the clutch to move towards that initial position. During the clutch's movement towards the initial position, the transmission input shaft speed is monitored in real time. If the input shaft speed exceeds a preset first input shaft threshold, the clutch is controlled to move to the preset position; if the input shaft speed never exceeds the preset first input shaft threshold, the clutch is controlled to move to the initial position.

[0109] After shifting gears, the target transmission torque of the clutch is determined based on the accelerator pedal opening. The clutch's target position is determined by consulting the first characteristic association library in conjunction with the clutch's real-time temperature. During shifting gears during start-up and driving, the engine speed and input shaft speed are monitored in real-time. The absolute value of the difference between the engine speed and input shaft speed is calculated. If the absolute value of the difference between the engine speed and input shaft speed is greater than a preset differential threshold, the driving resistance is determined based on the vehicle acceleration, vehicle frontal area, environmental slope angle, and preset vehicle mass. The transmission ratio is determined based on the gearbox gear and a preset gear ratio relationship library. Then, the actual transmission torque of the clutch is calculated based on the driving resistance and transmission ratio. The first characteristic association library is updated based on the actual transmission torque, the clutch's current position, and the current temperature. During subsequent travel, the clutch position is determined based on the updated first characteristic association library. During subsequent shifts, the engine speed and input shaft speed are used to determine whether to continue updating the first characteristic association library until the end of the current driving process. The first characteristic association library is then set as the initial characteristic association library, ready to be used again for the next driving session.

[0110] In summary, the clutch control method of this application can update the clutch characteristic association library based on the clutch wear, the target transmission torque and the actual transmission torque of the clutch each time the vehicle starts and during driving, thereby ensuring that the clutch can move to the correct position during driving.

[0111] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0112] Based on the same inventive concept, this application also provides a clutch control device for implementing the clutch control method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more clutch control device embodiments provided below can be found in the limitations of the clutch control method described above, and will not be repeated here.

[0113] In one exemplary embodiment, such as Figure 8 As shown, this application provides a clutch control device, including: a first acquisition module 801, a second acquisition module 802, a first update module 803, and a first execution module 804, wherein:

[0114] The first acquisition module 801 is used to acquire vehicle operating parameter information and environmental information.

[0115] The second acquisition module 802 is used to acquire the current position and actual temperature of the vehicle's clutch when the operating parameter information meets the preset relative slip conditions, and to acquire the actual transmitted torque of the clutch based on the operating parameter information and environmental information.

[0116] The first update module 803 is used to update the first characteristic association library of the clutch based on the current position, actual temperature and actual transmitted torque.

[0117] The first execution module 804 is used to control the clutch according to the updated first characteristic association library.

[0118] In an exemplary embodiment, the operating parameter information includes: gearbox gear position, vehicle acceleration, and vehicle frontal area; the environmental information includes the environmental slope angle; the second acquisition module includes a first determination submodule, a second determination submodule, and a third determination submodule.

[0119] The first determination submodule is used to determine the driving resistance based on the vehicle acceleration, vehicle frontal area, environmental slope angle, and preset vehicle mass.

[0120] The second determining submodule is used to determine the transmission ratio of the transmission system based on the gearbox gear and a preset gear ratio relationship library.

[0121] The third determination submodule is used to determine the actual transmitted torque of the clutch based on the transmission ratio of the transmission system and the driving resistance.

[0122] In an exemplary embodiment, the operating parameter information further includes the accelerator pedal opening; the first execution module includes a fourth determination submodule and a fifth determination submodule.

[0123] The fourth determination submodule is used to determine the target transmission torque of the clutch based on the accelerator pedal opening and the preset first torque relationship library;

[0124] The fifth determination submodule is used to determine the target position of the clutch based on the target transmitted torque, the actual temperature of the clutch, and the updated first characteristic association library.

[0125] In one exemplary embodiment, the clutch control device further includes a third acquisition module and a fourth acquisition module.

[0126] The third acquisition module is used to control the clutch to move toward the flywheel and acquire the first wear amount of the clutch when a vehicle start command is received.

[0127] The fourth acquisition module is used to update the pre-stored initial characteristic association library based on the first wear amount and the pre-stored historical wear amount, and obtain the first characteristic association library.

[0128] In one exemplary embodiment, the fourth acquisition module includes:

[0129] The first acquisition submodule is used to update the initial feature association library based on the difference between the first wear amount and the historical wear amount when the difference between the first wear amount and the historical wear amount is greater than the preset wear threshold, and to acquire the first feature association library.

[0130] The second acquisition submodule is used to directly determine the initial characteristic association library as the first characteristic association library when the difference between the first wear amount and the historical wear amount is equal to the preset wear threshold.

[0131] The third acquisition submodule is used to acquire the pre-stored original characteristic association library of the clutch when the difference between the first wear amount and the historical wear amount is less than the preset wear threshold, and to determine the original characteristic association library as the first characteristic association library.

[0132] In one exemplary embodiment, the clutch control device further includes a first determining module, a second determining module, and a second executing module.

[0133] The first determining module is used to determine the initial transmission torque of the clutch based on the operating parameter information and obtain the current temperature of the clutch when the first shift command is received.

[0134] The second determining module is used to determine the initial position of the clutch based on the initial transmitted torque, the current temperature, and the first characteristic association library.

[0135] The second execution module is used to control the clutch to move to the initial position.

[0136] In one exemplary embodiment, the second execution module includes a fourth acquisition submodule, a first execution submodule, and a second execution submodule.

[0137] The fourth acquisition submodule is used to acquire the vehicle's input shaft speed during the process of controlling the clutch to move to the initial position.

[0138] The first execution submodule is used to control the clutch to move to a preset position when the input shaft speed exceeds a preset first input shaft threshold.

[0139] The second execution submodule is used to control the clutch to move to the initial position when the input shaft speed does not exceed the preset first input shaft threshold.

[0140] In one exemplary embodiment, the clutch control device further includes a second execution submodule.

[0141] The third execution module is used to control the clutch to disengage to a preset position upon receiving the second shift command.

[0142] Each module in the aforementioned clutch control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0143] In one exemplary embodiment, this application also provides a computer device including a memory and a processor, the memory storing a computer program, characterized in that the processor executes the computer program to implement the steps of the clutch control method in any of the above embodiments.

[0144] This computer device can be a terminal, and its internal structure diagram can be as follows: Figure 9As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When executed by the processor, the computer program implements a clutch control method. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device casing, or an external keyboard, touchpad or mouse.

[0145] Those skilled in the art will understand that Figure 9 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0146] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps of the clutch control method in any of the above embodiments.

[0147] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of the clutch control method in any of the above embodiments.

[0148] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0149] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0150] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0151] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A clutch control method, characterized in that, The method includes: Obtain vehicle operating parameters and environmental information; When the operating parameter information meets the preset conditions, the current position and actual temperature of the vehicle's clutch are obtained, and the actual transmitted torque of the clutch is obtained based on the operating parameter information and the environmental information. The first characteristic association library of the clutch is updated based on the current position, the actual temperature, and the actual transmitted torque; The clutch is controlled based on the operating parameter information and the updated first characteristic association library; Upon receiving a vehicle start command, the clutch is controlled to move toward the flywheel, and the first wear amount of the clutch is obtained; The pre-stored initial characteristic association library is updated based on the first wear amount and the pre-stored historical wear amount to obtain the first characteristic association library; The step of updating the pre-stored initial characteristic association library based on the first wear amount and the pre-stored historical wear amount to obtain the first characteristic association library includes: when the difference between the first wear amount and the historical wear amount is greater than a preset wear threshold, updating the initial characteristic association library based on the difference between the first wear amount and the pre-stored historical wear amount to obtain the first characteristic association library; when the difference between the first wear amount and the historical wear amount is equal to the preset wear threshold, directly determining the initial characteristic association library as the first characteristic association library; when the difference between the first wear amount and the historical wear amount is less than the preset wear threshold, obtaining the pre-stored original characteristic association library of the clutch and determining the original characteristic association library as the first characteristic library.

2. The method according to claim 1, characterized in that, The operating parameter information includes: gearbox gear position, vehicle acceleration and vehicle frontal area; the environmental information includes the environmental slope angle. The step of obtaining the actual transmitted torque of the vehicle based on the operating parameter information and the environmental information includes: The driving resistance is determined based on the vehicle acceleration, the vehicle's frontal area, the environmental slope angle, and the preset vehicle mass. The transmission ratio of the transmission system is determined based on the gearbox gear position and the preset gear ratio relationship library; The actual transmitted torque of the clutch is determined based on the transmission ratio of the transmission system and the driving resistance.

3. The method according to claim 1, characterized in that, The operating parameter information also includes the accelerator pedal opening; controlling the clutch based on the operating parameter information and the updated first characteristic association library includes: The target transmission torque of the clutch is determined based on the accelerator pedal opening and a preset first torque relationship library; The target position of the clutch is determined based on the target transmitted torque, the actual temperature of the clutch, and the updated first characteristic association library.

4. The method according to claim 1, characterized in that, The method further includes: Upon receiving the first shift command, the initial transmission torque of the clutch is determined based on the operating parameter information, and the current temperature of the clutch is obtained. The initial position of the clutch is determined based on the initial transmitted torque, the current temperature, and the first characteristic association library; Control the clutch to move towards the initial position.

5. The method according to claim 4, characterized in that, The control of moving the clutch to the initial position includes: During the process of controlling the clutch to move towards the initial position, the input shaft speed of the vehicle is obtained; If the input shaft speed exceeds a preset first input shaft threshold, the clutch is controlled to move to a preset position; If the input shaft speed does not exceed a preset first input shaft threshold, the clutch is controlled to move to the initial position.

6. The method according to claim 1, characterized in that, The method further includes: Upon receiving a second shift command, the clutch is controlled to disengage to a preset position.

7. A clutch control device, characterized in that, The device includes: The first acquisition module is used to acquire vehicle operating parameter information and environmental information; The second acquisition module is used to acquire the current position and actual temperature of the clutch of the vehicle when the operating parameter information meets the preset relative slip conditions, and to acquire the actual transmitted torque of the clutch based on the operating parameter information and the environmental information. The first update module is used to update the first characteristic association library of the clutch based on the current position, the actual temperature and the actual transmitted torque; The first execution module is used to control the clutch according to the updated first feature association library; The third acquisition module is used to control the clutch to move toward the flywheel and acquire the first wear amount of the clutch when a vehicle start command is received. The fourth acquisition module is used to update the pre-stored initial characteristic association library based on the first wear amount and the pre-stored historical wear amount, so as to obtain the first characteristic association library; The fourth acquisition module includes: a first acquisition submodule, used to update the initial characteristic association library based on the difference between the first wear amount and the historical wear amount when the difference between the first wear amount and the historical wear amount is greater than a preset wear threshold, and acquire the first characteristic association library; a second acquisition submodule, used to directly determine the initial characteristic association library as the first characteristic association library when the difference between the first wear amount and the historical wear amount is equal to the preset wear threshold; and a third acquisition submodule, used to acquire the pre-stored original characteristic association library of the clutch when the difference between the first wear amount and the historical wear amount is less than the preset wear threshold, and determine the original characteristic association library as the first characteristic library.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 6.

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