Wet clutch sticking fault handling method and apparatus, device, and storage medium

By comprehensively detecting various abnormal states of the vehicle, accurately diagnose the wet clutch adhesion fault, solving the problem of untimely diagnosis in the prior art, and improving the accuracy of fault handling and user experience.

WO2025152495A1PCT designated stage expired Publication Date: 2025-07-24DONGFENG MOTOR GRP
View PDF 6 Cites 0 Cited by

Patent Information

Application Number
PCT/CN2024/120720
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-01-17
Filing Date
2024-09-24
Publication Date
2025-07-24

AI Technical Summary

Technical Problem

In the prior art, the diagnosis of adhesion faults of wet clutch is too single, which can easily lead to misdiagnosis, misdiagnosis or untimely diagnosis, affecting vehicle safety and driving comfort.

Method used

By detecting whether the vehicle is in the engine startup failure state, the gearbox static gear failure state, the vehicle abnormal displacement state and the clutch abnormal torque transmission state, the wet clutch adhesion fault is comprehensively diagnosed and targeted processing is carried out.

Benefits of technology

It realizes timely and accurate diagnosis of wet clutch adhesion faults, avoids damage to parts and the inability to operate normally, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN2024120720_24072025_PF_FP_ABST
    Figure CN2024120720_24072025_PF_FP_ABST
Patent Text Reader

Abstract

A wet clutch sticking fault handling method and apparatus, a device, and a storage medium. The handling method comprises: detecting whether a vehicle is in at least one of abnormal clutch states, wherein the abnormal clutch states include: an engine start failure state, a gearbox static gear engagement failure state, an abnormal whole-vehicle displacement state, and an abnormal clutch torque transmission state; if the vehicle is in at least one of the abnormal clutch states, determining that a clutch of the vehicle has a sticking fault; and performing corresponding handling on the vehicle on the basis of the abnormal clutch state of the vehicle.
Need to check novelty before this filing date? Find Prior Art

Description

Wet clutch adhesion fault treatment method, device, equipment and storage medium CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The embodiments of this application are based on and claim priority of Chinese patent application number CN202410069695.2, filed on January 17, 2024. The entire contents of the Chinese patent application are incorporated herein by reference into the embodiments of this application. Technical Field

[0002] The present application relates to, but is not limited to, the field of vehicle fault diagnosis and treatment, and in particular to a method, device, equipment, and storage medium for treating a wet clutch adhesion fault. Background Art

[0003] A wet clutch uses oil to cool the friction surfaces. Heat generated by sliding friction during the engagement process is readily dissipated by the cooling oil, effectively controlling the temperature of the friction surfaces and significantly reducing wear. Wet clutches are commonly used in automatic transmissions.

[0004] For wet clutches, excessive transmission oil viscosity, water ingress, and rusting of the clutch can cause clutch sticking. When this happens, the clutch cannot fully open, and the residual torque in the clutch restricts the normal operation of the transmission, affecting vehicle safety and driving comfort, while also reducing the clutch's service life.

[0005] Related technologies primarily identify clutch sticking based on the pressure and speed differences across the clutch. However, this single diagnostic criterion can easily lead to misdiagnosis, missed diagnosis, or delayed diagnosis. Summary of the Invention

[0006] In view of this, the embodiments of the present application provide a method, device, equipment and storage medium for handling wet clutch adhesion failure, which can promptly detect the abnormal clutch state of the vehicle and handle the clutch adhesion failure in a targeted manner, thereby improving the user experience.

[0007] The technical solution of the embodiment of the present application is implemented as follows:

[0008] An embodiment of the present application provides a method for handling a wet clutch adhesion fault, comprising: detecting whether a vehicle is in at least one of the clutch abnormal states; wherein the clutch abnormal state includes: an engine start failure state, a transmission static gear failure state, an abnormal vehicle displacement state, and an abnormal clutch torque transmission state; if the vehicle is in at least one of the clutch abnormal states, it is determined that the vehicle's clutch has an adhesion fault; and based on the vehicle's clutch abnormal state, the vehicle is subjected to corresponding processing.

[0009] An embodiment of the present application also provides a device for processing a wet clutch adhesion fault, comprising: a detection module, configured to detect whether a vehicle is in at least one of the clutch abnormal states; wherein the clutch abnormal state includes: an engine start failure state, a transmission static gear failure state, a whole vehicle abnormal displacement state and a clutch abnormal torque transmission state; and, if the vehicle is in at least one of the clutch abnormal states, it is determined that the clutch of the vehicle has an adhesion fault; a processing module, configured to perform corresponding processing on the vehicle based on the clutch abnormal state of the vehicle.

[0010] An embodiment of the present application further provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor implements the steps in the above method when executing the program.

[0011] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, which implements the steps in the above method when the computer program is executed by a processor.

[0012] Thus, the embodiments of the present application can promptly detect any abnormal clutch state in the vehicle and provide targeted treatment for the clutch adhesion fault. This allows for rapid and accurate diagnosis of clutch adhesion faults, avoiding component damage or vehicle malfunction due to untimely or erroneous fault diagnosis, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a schematic diagram of a first implementation flow of a method for handling a wet clutch adhesion fault provided by an embodiment of the present application;

[0014] FIG2 is a second schematic diagram of a process for processing a wet clutch adhesion fault according to an embodiment of the present application;

[0015] FIG3 is a third schematic diagram of a process for processing a wet clutch adhesion fault according to an embodiment of the present application;

[0016] FIG4 is a fourth schematic diagram of a flow chart of a method for handling a wet clutch adhesion fault according to an embodiment of the present application;

[0017] FIG5 is a fifth flow chart of a method for handling a wet clutch adhesion fault according to an embodiment of the present application;

[0018] FIG6 is a schematic diagram of the structure of a device for processing a wet clutch adhesion fault according to an embodiment of the present application;

[0019] FIG7 is a schematic diagram of a hardware entity of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions of this application are further elaborated in detail below with reference to the accompanying drawings and embodiments. The described embodiments should not be regarded as limiting this application. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0021] In the following description, references to "some embodiments" describe a subset of all possible embodiments. However, it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict. The terms "first / second / third" are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It is understood that the specific order or sequence of "first / second / third" may be interchanged where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing this application only and are not intended to limit this application.

[0023] The present invention provides a method for handling a wet clutch adhesion fault, which can be executed by a processor of a computer device, wherein the computer device can be installed in a vehicle or in a vehicle testing device.

[0024] FIG1 is a schematic diagram of an implementation flow of a method for processing a wet clutch adhesion fault provided in an embodiment of the present application. As shown in FIG1 , the method includes steps S101 to S103 .

[0025] S101. Detect whether the vehicle is in at least one of the following clutch abnormal states; wherein the clutch abnormal state includes: engine start failure state, transmission static gear failure state, vehicle abnormal displacement state, and clutch abnormal torque transmission state.

[0026] S102: If the vehicle is in at least one of the clutch abnormal states, it is determined that a clutch adhesion fault occurs in the vehicle.

[0027] It should be noted that under normal conditions, when the clutch is fully open, the clutch input and output shafts do not affect each other or only slightly drag the oil. However, if the clutch experiences a sticking fault, there is still significant interaction between the input and output, which can cause other abnormal vehicle failures. For example, if the clutch is open and the passive end of the clutch still has torque output, then at engine idle speed, the vehicle will move forward or backward abnormally, and the transmission will be unable to engage a gear due to the interference torque. For another example, if the clutch is open and the active end of the clutch is subjected to the braking torque of the passive end, the engine will not start. Therefore, clutch sticking not only reduces the clutch speed difference, but also causes the engine to fail to start, the transmission to fail to engage a gear, and abnormal vehicle displacement.

[0028] In this embodiment of the present application, clutch sticking faults can be diagnosed from multiple perspectives, combined with other vehicle abnormalities caused by clutch sticking faults to comprehensively detect whether the vehicle is in an abnormal clutch state. Furthermore, it can detect whether the vehicle is in one or more of the following states: engine start failure, transmission static gear failure, abnormal vehicle displacement, and abnormal clutch torque transmission.

[0029] It should also be noted that in order to ensure the accuracy of detection of abnormal clutch conditions, the method provided in the embodiment of the present application needs to be carried out under certain enabling conditions to eliminate missed detection and misjudgment.

[0030] S103: Perform corresponding processing on the vehicle based on the abnormal clutch state of the vehicle.

[0031] In an embodiment of the present application, after determining which clutch abnormal state the vehicle is in, the vehicle can be processed in a targeted manner, for example, attempting to eliminate the fault and issuing an early warning to the driver or tester.

[0032] It is understood that the embodiments of the present application can promptly detect any abnormal clutch state in the vehicle and provide targeted treatment for the clutch adhesion fault. This allows for rapid and accurate diagnosis of clutch adhesion faults, avoiding component damage or vehicle malfunction caused by untimely or erroneous fault diagnosis, and improving the user experience.

[0033] In some embodiments of the present application, S101 shown in FIG. 1 may be implemented through S201 to S203 shown in FIG. 2 , which will be described in conjunction with each step.

[0034] S201. Detect whether the vehicle meets a first enabling condition; the first enabling condition includes: the clutch is in an idle state; the clutch pressure is less than a preset value; and the engine meets a start-up condition.

[0035] S202: If the vehicle meets all first enabling conditions, monitor the vehicle for engine start failure.

[0036] In the embodiment of the present application, the engine start failure status monitoring requires that the vehicle simultaneously meets the following first enabling conditions:

[0037] (1) The clutch is in the return state;

[0038] (2) The clutch pressure is less than the preset value;

[0039] (3) The engine meets the starting and running conditions.

[0040] Furthermore, after the first enabling condition is satisfied for a certain period of time, the engine start failure status monitoring can be performed. If the first enabling condition is not fully satisfied during the fault diagnosis process, the diagnosis is terminated and the diagnosis is performed again after all the first enabling conditions are satisfied simultaneously.

[0041] S203: If the vehicle's engine has not been started yet when the start button is triggered, or the vehicle's engine startup duration exceeds a preset startup time value, it is determined that the vehicle is in an engine start failure state.

[0042] In this embodiment of the present application, after entering the engine start failure state monitoring, if the engine start button is triggered but the engine still does not complete the start, or if the engine enters the running state and the start duration exceeds a preset time, then the engine start failure is determined, and the vehicle is in a clutch abnormal state due to the engine start failure. The engine start duration refers to the time it takes for the engine to attempt to enter the running state.

[0043] In some embodiments of the present application, S103 shown in FIG. 1 may be implemented through S204 to S206 shown in FIG. 2 , which will be described in conjunction with each step.

[0044] S204: If the vehicle is in an engine start failure state, the vehicle's engine exits the current start procedure.

[0045] S205: Try to restart the vehicle's engine and detect whether the vehicle enters the engine start failure state again.

[0046] S206: If the vehicle enters the engine start failure state again, the engine start instruction is terminated, the current fault code is stored, and the fault light on the instrument is turned on.

[0047] In this embodiment of the present application, if the fault phenomenon is an engine start failure, the engine will first exit the current start procedure, and then attempt to restart the engine. At the same time, the engine start failure status monitoring will continue according to steps S201 to S203. If the engine fails to start again, the engine start command will be terminated, the fault code will be stored, and the fault light on the instrument panel will be illuminated to warn the driver or tester.

[0048] In some embodiments of the present application, S101 shown in FIG. 1 may be implemented through S301 to S303 shown in FIG. 3 , which will be described in conjunction with each step.

[0049] S301. Detect whether the vehicle satisfies a second enabling condition; the second enabling condition includes: the vehicle speed is less than a preset vehicle speed value; the throttle opening is less than a first preset opening value; the shift lever was in P or N gear at the previous moment and is in D or R gear at the current moment; the clutch pressure is less than a preset value; and the shift hub is not faulty.

[0050] S302: If the vehicle satisfies all second enabling conditions, the vehicle is monitored for transmission static gear engagement failure.

[0051] In this embodiment of the present application, static gear engagement of the transmission refers to the shift lever being shifted from P (park) or N (neutral) to D (drive) or R (reverse). The static gear engagement failure detection for the transmission requires the vehicle to simultaneously meet the following second enabling conditions:

[0052] (1) The vehicle speed is lower than the preset speed value;

[0053] (2) The throttle opening is less than the first preset opening value;

[0054] (3) The gear lever was in the P or N position at the previous moment, and the target position at the current moment is the D or R position;

[0055] (4) The clutch pressure is less than the preset value;

[0056] (5) There is no fault with the shift hub.

[0057] Furthermore, after the second enabling condition is met for a certain period of time, the transmission static gear failure monitoring can be performed. If the second enabling condition is not fully met during the fault diagnosis process, the diagnosis is terminated and the diagnosis is resumed after all the second enabling conditions are met simultaneously.

[0058] S303: If the transmission of the vehicle does not enter the D gear or the R gear within the preset time, it is determined that the vehicle is in a transmission static gear shift failure state.

[0059] In the embodiment of the present application, after entering the transmission static gear shift failure state monitoring, if the transmission position has not entered the D gear or the R gear for more than a preset time, then it is determined that the clutch static gear shift failure has occurred, and the vehicle is in a clutch abnormal state due to the clutch static gear shift failure.

[0060] In some embodiments of the present application, S103 shown in FIG. 1 may be implemented through S304 to S306 shown in FIG. 3 , which will be described in conjunction with each step.

[0061] S304: If the vehicle is in a transmission static gear shift failure state, the vehicle's transmission exits the current gear shift program.

[0062] S305: Try to shift the vehicle's transmission again, and detect whether the vehicle enters the transmission static gear failure state again.

[0063] S306. If the vehicle enters the transmission static gear shift failure state again, the transmission shift instruction is terminated, the current fault code is stored, and the fault light on the instrument panel is turned on.

[0064] In this embodiment of the present application, if the fault phenomenon is a transmission failure to engage a gear while statically, the transmission will first exit the current shift sequence and then attempt to shift again. Simultaneously, the transmission will continue to monitor for transmission failures while statically engaging a gear according to steps S301 to S303. If the transmission fails to engage a gear again, the transmission shift command will be terminated, a fault code will be stored, and a fault light on the instrument panel will be illuminated to alert the driver or tester.

[0065] In some embodiments of the present application, S101 shown in FIG. 1 may be implemented through S401 to S403 shown in FIG. 4 , which will be described in conjunction with each step.

[0066] S401. Detect whether the vehicle meets a third enabling condition; the third enabling condition includes: the engine is in idle state; the throttle opening is less than a second preset opening value; the braking deceleration is less than a preset deceleration value; the clutch pressure is less than a preset value; the road surface on which the vehicle is traveling is flat; and the absolute value of the vehicle speed is less than a first preset vehicle speed.

[0067] S402: If the vehicle satisfies all third enabling conditions, abnormal displacement monitoring of the vehicle is performed.

[0068] In this embodiment of the present application, abnormal vehicle displacement refers to the phenomenon of the vehicle rolling when the vehicle is in N gear (neutral) and is stationary on a flat road. Abnormal vehicle displacement monitoring requires that the vehicle simultaneously meets the following third enabling condition:

[0069] (1) The engine is in idle state;

[0070] (2) The throttle opening is less than the second preset opening value;

[0071] (3) The braking deceleration is less than the preset deceleration value;

[0072] (4) The gear lever is currently in the N position;

[0073] (5) The clutch pressure is less than the preset value;

[0074] (6) The road surface on which the vehicle is traveling is smooth;

[0075] (7) The absolute value of the vehicle speed is less than the first preset vehicle speed v1.

[0076] Furthermore, after the third enabling condition is met for a certain period of time, abnormal displacement monitoring of the entire vehicle can be performed. If the third enabling condition is not fully met during the fault diagnosis process, the diagnosis is terminated and the diagnosis is resumed after all the third enabling conditions are met simultaneously.

[0077] S403: If the absolute value of the vehicle speed is greater than a second preset speed and the duration is greater than a preset time, it is determined that the vehicle is in an abnormal vehicle displacement state; wherein the second preset speed is greater than the first preset speed.

[0078] In this embodiment of the present application, after entering the vehicle abnormal displacement monitoring, if the absolute value of the vehicle speed is greater than the second preset speed v2 and the duration is greater than the preset time, then the vehicle is determined to be in the vehicle abnormal displacement state. Wherein, the second preset speed v2 is greater than the first preset speed v1.

[0079] In some embodiments of the present application, S103 shown in FIG. 1 may be implemented through S404 shown in FIG. 4 , which will be described in conjunction with each step.

[0080] S404: If the vehicle is in an abnormal vehicle displacement state, the driver is prompted to step on the brakes, the current fault code is stored, and the fault light on the instrument is lit.

[0081] In an embodiment of the present application, if the fault phenomenon is abnormal displacement of the entire vehicle, the driver is prompted to step on the brakes. At the same time, the fault code is stored and the fault light on the instrument is lit to warn the driver or tester.

[0082] In some embodiments of the present application, S101 shown in FIG. 1 may be implemented through S501 to S503 shown in FIG. 5 , which will be described in conjunction with each step.

[0083] S501. Detect whether the vehicle meets a fourth enabling condition; the fourth enabling condition includes: the engine is in a working state; and the pressure of the clutch is less than a preset value.

[0084] S502: If the vehicle satisfies all fourth enabling conditions, abnormal clutch torque transmission monitoring is performed on the vehicle.

[0085] In the embodiment of the present application, abnormal clutch torque transmission refers to: a large torque is still transmitted after the clutch is disengaged. Abnormal clutch torque transmission monitoring requires the vehicle to simultaneously meet the following fourth enabling condition:

[0086] (1) The engine is in working condition;

[0087] (2) The clutch pressure is less than the preset value.

[0088] Furthermore, after the fourth enabling condition is satisfied for a certain period of time, abnormal clutch torque transmission monitoring can be performed. If the fourth enabling condition is not fully satisfied during the fault diagnosis process, the diagnosis is terminated and the diagnosis is resumed after all the fourth enabling conditions are satisfied simultaneously.

[0089] S503: If the speed difference between the active end and the passive end of the vehicle's clutch is less than a preset speed difference value, it is determined that the vehicle is in an abnormal clutch torque transmission state.

[0090] In an embodiment of the present application, after entering the clutch abnormal torque transmission monitoring, if the speed difference between the active end and the passive end of the clutch is less than the preset speed difference value and the duration exceeds a preset time, then it is determined that the vehicle is in the clutch abnormal torque transmission state.

[0091] In some embodiments of the present application, S103 shown in FIG. 1 may be implemented through S504 to S505 shown in FIG. 5 , which will be described in conjunction with each step.

[0092] S504: If the vehicle is in the clutch abnormal torque transmission state, wait for the next clutch engagement and disengagement instruction, and detect whether the vehicle enters the clutch abnormal torque transmission state again.

[0093] S505: If the vehicle enters the abnormal clutch torque transmission state again, the current fault code is stored and the fault light on the instrument is turned on.

[0094] In this embodiment, if the fault is abnormal clutch torque transmission, the system waits for the next clutch engagement and disengagement command while continuing to monitor abnormal clutch torque transmission according to steps S501 to S503. If abnormal clutch torque transmission recurs, a fault code is stored and a fault light on the instrument panel illuminates to alert the driver or tester.

[0095] It is understood that the embodiments of this application diagnose clutch sticking faults from the perspectives of the vehicle, engine, transmission, and clutch, providing sufficient diagnostic conditions and effectively reducing missed and misdiagnosed conditions. Furthermore, the embodiments of this application provide detailed diagnostic enabling conditions and post-processing methods. This enables timely and accurate diagnosis of clutch sticking, thereby preventing further damage to the clutch hardware and improving driving safety.

[0096] FIG6 is a schematic diagram illustrating the structure of a wet clutch adhesion fault treatment device provided in an embodiment of the present application. As shown in FIG6 , wet clutch adhesion fault treatment device 800 includes a detection module 810 and a processing module 820. Detection module 810 is configured to detect whether the vehicle is in at least one of the following clutch abnormalities: engine start failure, transmission static gear engagement failure, abnormal vehicle displacement, and abnormal clutch torque transmission. If the vehicle is in at least one of these clutch abnormalities, it is determined that the vehicle's clutch has adhesion faulted. Processing module 820 is configured to perform appropriate processing on the vehicle based on the clutch abnormality.

[0097] In some embodiments of the present application, the detection module 810 is further configured to detect whether the vehicle meets the first enabling condition; the first enabling condition includes: the clutch is in the return-to-empty state; the clutch pressure is less than a preset value; and the engine meets the starting and running conditions; if the vehicle meets all the first enabling conditions, the vehicle is monitored for engine start failure status; if the vehicle's engine has not completed starting when the start button is triggered, or the vehicle's engine start duration exceeds the running time preset value, the vehicle is determined to be in an engine start failure state.

[0098] In some embodiments of the present application, the processing module 820 is further configured to, if the vehicle is in an engine start failure state, exit the vehicle's engine from the current start procedure; attempt to start the vehicle's engine again, and detect whether the vehicle enters the engine start failure state again; if the vehicle enters the engine start failure state again, terminate the engine start instruction, store the current fault code, and light up the fault light on the instrument.

[0099] In some embodiments of the present application, the detection module 810 is further configured to detect whether the vehicle meets a second enabling condition; the second enabling condition includes: the vehicle speed is less than a preset vehicle speed value; the throttle opening is less than a first opening preset value; the shift lever is in P gear or N gear at the previous moment, and the target position at the current moment is D gear or R gear; the clutch pressure is less than a preset value; and the shift hub has no fault; if the vehicle meets all the second enabling conditions, the vehicle is monitored for transmission static gear shift failure; if the vehicle's transmission does not enter D gear or R gear within the preset time, it is determined that the vehicle is in a transmission static gear shift failure state.

[0100] In some embodiments of the present application, the processing module 820 is further configured to, if the vehicle is in a transmission static gear shift failure state, exit the vehicle's transmission from the current gear shifting program; attempt to shift the vehicle's transmission again, and detect whether the vehicle enters the transmission static gear shift failure state again; if the vehicle enters the transmission static gear shift failure state again, terminate the transmission shift instruction, store the current fault code, and light up the fault light on the instrument panel.

[0101] In some embodiments of the present application, the detection module 810 is further configured to detect whether the vehicle meets a third enabling condition; the third enabling condition includes: the engine is in idle state; the throttle opening is less than a second opening preset value; the braking deceleration is less than a deceleration preset value; the shift lever is in N gear at the current moment; the clutch pressure is less than a preset value; the road surface on which the vehicle is traveling is flat; and the absolute value of the vehicle speed is less than a first preset speed; if the vehicle meets all the third enabling conditions, the vehicle is monitored for abnormal displacement of the entire vehicle; if the absolute value of the vehicle speed is greater than the second preset speed, and the duration is greater than the preset time, it is determined that the vehicle is in an abnormal displacement state of the entire vehicle; wherein, the second preset speed is greater than the first preset speed.

[0102] In some embodiments of the present application, the processing module 820 is further configured to prompt the driver to brake if the vehicle is in an abnormal vehicle displacement state, store the current fault code, and light up the fault light on the instrument.

[0103] In some embodiments of the present application, the detection module 810 is further configured to detect whether the vehicle meets the fourth enabling condition; the fourth enabling condition includes: the engine is in working condition; and the pressure of the clutch is less than a preset value; if the vehicle meets all the fourth enabling conditions, the vehicle is monitored for abnormal clutch torque transmission; if the speed difference between the active and passive ends of the vehicle's clutch is less than the speed difference preset value, it is determined that the vehicle is in an abnormal clutch torque transmission state.

[0104] In some embodiments of the present application, the processing module 820 is further configured to wait for the next clutch engagement and disengagement instruction if the vehicle is in the clutch abnormal torque transmission state, and detect whether the vehicle enters the clutch abnormal torque transmission state again; if the vehicle enters the clutch abnormal torque transmission state again, the current fault code is stored and the fault light on the instrument is turned on.

[0105] The description of the above device embodiment is similar to the description of the above method embodiment and has similar beneficial effects as the method embodiment. In some embodiments, the functions or modules included in the device provided in the embodiments of the present application can be used to perform the methods described in the above method embodiments. For technical details not disclosed in the device embodiments of the present application, please refer to the description of the method embodiments of the present application for understanding.

[0106] It should be noted that in the embodiments of the present application, if the aforementioned method for handling wet clutch adhesion failure is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of the present application, or the portion that contributes to the relevant technology, can be embodied in the form of a software product. This software product is stored in a storage medium and includes instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of the present application. The aforementioned storage medium includes various media that can store program code, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a magnetic disk, or an optical disk. Thus, the embodiments of the present application are not limited to any specific hardware, software, or firmware, or any combination of hardware, software, and firmware.

[0107] An embodiment of the present application provides a computer device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the program, some or all of the steps in the above method are implemented.

[0108] The present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements some or all of the steps in the above method. The computer-readable storage medium may be transient or non-transient.

[0109] An embodiment of the present application provides a computer program, including computer-readable code. When the computer-readable code is run in a computer device, a processor in the computer device executes some or all of the steps for implementing the above method.

[0110] An embodiment of the present application provides a computer program product, comprising a non-transitory computer-readable storage medium storing a computer program. When the computer program is read and executed by a computer, the computer program implements some or all of the steps of the above-described method. The computer program product can be implemented in hardware, software, or a combination thereof. In some embodiments, the computer program product is embodied as a computer storage medium. In other embodiments, the computer program product is embodied as a software product, such as a software development kit (SDK).

[0111] It should be noted that the descriptions of the various embodiments above tend to emphasize the differences between the various embodiments, and their similarities or similarities can be referenced to each other. The descriptions of the above device, storage medium, computer program, and computer program product embodiments are similar to the descriptions of the above method embodiments and have similar beneficial effects as the method embodiments. For technical details not disclosed in the embodiments of the device, storage medium, computer program, and computer program product of this application, please refer to the description of the method embodiments of this application for understanding.

[0112] Figure 7 is a schematic diagram of the hardware entity of a computer device provided in an embodiment of the present application. As shown in Figure 7, the hardware entity of the computer device 1100 includes: a processor 1101 and a memory 1102, wherein the memory 1102 stores a computer program that can be run on the processor 1101, and when the processor 1101 executes the program, the steps in the method of any of the above embodiments are implemented.

[0113] The memory 1102 stores computer programs that can be run on the processor. The memory 1102 is configured to store instructions and applications executable by the processor 1101. It can also cache data to be processed or processed by the processor 1101 and various modules in the computer device 1100 (for example, image data, audio data, voice communication data, and video communication data). It can be implemented through flash memory (FLASH) or random access memory (RAM).

[0114] When the processor 1101 executes the program, the steps of any of the above-mentioned methods for handling a wet clutch sticking fault are implemented. The processor 1101 generally controls the overall operation of the computer device 1100.

[0115] An embodiment of the present application provides a computer storage medium storing one or more programs, which can be executed by one or more processors to implement the steps of the method for handling wet clutch adhesion failure as described in any of the above embodiments.

[0116] It should be noted that the description of the above storage medium and device embodiments is similar to the description of the above method embodiments and has similar beneficial effects as the method embodiments. For technical details not disclosed in the storage medium and device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

[0117] The processor may be at least one of an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a central processing unit (CPU), a controller, a microcontroller, and a microprocessor. It is understood that the electronic device that implements the functions of the processor may also be other electronic devices, and the embodiments of the present application are not specifically limited thereto.

[0118] The above-mentioned computer storage medium / memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory (Flash Memory), a magnetic surface storage device, an optical disc, or a compact disc read-only memory (CD-ROM); it can also be various terminals that include one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

[0119] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned steps / processes does not mean the order of execution, and the execution order of each step / process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are for description only and do not represent the advantages and disadvantages of the embodiments.

[0120] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0121] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0122] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed across multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0123] In addition, the functional units in the various embodiments of the present application may all be integrated into a single processing unit, or each unit may be independently configured as a unit, or two or more units may be integrated into a single unit; the aforementioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units. A person skilled in the art will appreciate that all or part of the steps in implementing the aforementioned method embodiments may be accomplished by hardware associated with program instructions, and the aforementioned program may be stored in a computer-readable storage medium. When the program is executed, the program executes the steps of the aforementioned method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as a mobile storage device, a read-only memory (ROM), a magnetic disk, or an optical disk.

[0124] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the relevant technology, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0125] The above is only an implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this application, which should be covered by the scope of protection of the present application.

Claims

1. A method for handling the adhesion failure of a wet clutch, comprising: Detecting whether the vehicle is in at least one of the abnormal clutch states; wherein, the abnormal clutch states include: engine start failure state, transmission static gear shifting failure state, vehicle abnormal displacement state, and abnormal torque transmission state of the clutch; If the vehicle is in at least one of the abnormal clutch states, it is determined that the clutch of the vehicle has an adhesion failure; Based on the abnormal clutch state of the vehicle, corresponding processing is performed on the vehicle.

2. The method for handling the wet clutch adhesion failure according to claim 1, wherein, Detecting whether the vehicle is in the engine start failure state includes: Detecting whether the vehicle meets the first enabling condition; the first enabling condition includes: the clutch is in the return empty state; the clutch pressure is less than a preset value; and, the engine meets the start and operation conditions; If the vehicle meets all of the first enabling conditions, engine start failure state monitoring is performed on the vehicle; If the engine of the vehicle has not completed starting when the start button is triggered, or, the start duration of the engine of the vehicle exceeds the preset operation time value, it is determined that the vehicle is in the engine start failure state.

3. The method for handling the wet clutch adhesion failure according to claim 1, wherein, Based on the abnormal clutch state of the vehicle, corresponding processing is performed on the vehicle, including: If the vehicle is in the engine start failure state, the engine of the vehicle is exited from the current start program; Attempt to start the engine of the vehicle again and detect whether the vehicle enters the engine start failure state again; If the vehicle enters the engine start failure state again, the engine start instruction is terminated, the current fault code is stored, and the fault light on the instrument panel is lit.

4. The method for handling the wet clutch adhesion failure according to claim 1, wherein, Detecting whether the vehicle is in the transmission static gear shifting failure state includes: Detecting whether the vehicle meets the second enabling condition; the second enabling condition includes: the vehicle speed is less than the preset vehicle speed value; the throttle opening is less than the first preset opening value; the position of the shift lever was in the P gear or N gear at the previous moment and the target position is in the D gear or R gear at the current moment; the clutch pressure is less than the preset value; and, the shift hub has no fault; If the vehicle meets all of the second enabling conditions, transmission static gear shifting failure monitoring is performed on the vehicle; If the transmission of the vehicle does not enter the D gear or R gear within the preset time, it is determined that the vehicle is in the transmission static gear shifting failure state.

5. The method for handling the wet clutch adhesion failure according to claim 1, wherein, Based on the abnormal clutch state of the vehicle, corresponding processing is performed on the vehicle, further including: If the vehicle is in the transmission static gear shifting failure state, the transmission of the vehicle is exited from the current gear shifting program; Attempt to shift the transmission of the vehicle again and detect whether the vehicle enters the transmission static gear shifting failure state again; If the vehicle enters the transmission static gear shifting failure state again, the transmission gear shifting instruction is terminated, the current fault code is stored, and the fault light on the instrument panel is lit.

6. The method for dealing with the wet clutch adhesion failure according to claim 1, wherein, Detecting whether the vehicle is in the vehicle abnormal displacement state includes: Detect whether the vehicle meets the third enabling condition; the third enabling condition includes: the engine is in the idle state; the throttle opening is less than the second preset opening value; the braking deceleration is less than the preset deceleration value; the position of the shift lever at the current moment is in the N gear; the pressure of the clutch is less than the preset value; the road surface on which the vehicle travels is flat; and, the absolute value of the vehicle speed is less than the first preset vehicle speed; If the vehicle meets all of the third enabling conditions, perform vehicle abnormal displacement monitoring on the vehicle; If the absolute value of the vehicle speed is greater than the second preset vehicle speed and the duration is greater than the preset time, determine that the vehicle is in the vehicle abnormal displacement state; wherein, the second preset vehicle speed is greater than the first preset vehicle speed.

7. The method for handling the wet clutch adhesion failure according to claim 1, wherein, Based on the abnormal state of the clutch of the vehicle, corresponding processing on the vehicle further includes: If the vehicle is in the vehicle abnormal displacement state, prompt the driver to step on the brake, store the current fault code, and turn on the fault light on the instrument panel.

8. The method for handling the wet clutch adhesion failure according to claim 1, wherein, Detect whether the vehicle is in the abnormal torque transmission state of the clutch, including: Detect whether the vehicle meets the fourth enabling condition; the fourth enabling condition includes: the engine is in the working state; and, the pressure of the clutch is less than the preset value; If the vehicle meets all of the fourth enabling conditions, perform abnormal torque transmission monitoring on the clutch of the vehicle; If the rotational speed difference between the driving end and the driven end of the clutch of the vehicle is less than the preset rotational speed difference value, determine that the vehicle is in the abnormal torque transmission state of the clutch.

9. The method for handling the wet clutch adhesion fault according to claim 1, wherein, Based on the abnormal state of the clutch of the vehicle, corresponding processing on the vehicle further includes: If the vehicle is in the abnormal torque transmission state of the clutch, wait for the next instruction of clutch engagement and disengagement, and detect whether the vehicle enters the abnormal torque transmission state of the clutch again; If the vehicle enters the abnormal torque transmission state of the clutch again, store the current fault code and turn on the fault light on the instrument panel.

10. A processing device for wet clutch adhesion failure, comprising: A detection module, configured to detect whether the vehicle is in at least one of the abnormal clutch states; wherein, the abnormal clutch states include: engine start failure state, transmission static gear shifting failure state, vehicle abnormal displacement state, and abnormal torque transmission state of the clutch; and, if the vehicle is in at least one of the abnormal clutch states, determine that the clutch of the vehicle has an adhesion failure; A processing module, configured to perform corresponding processing on the vehicle based on the abnormal state of the clutch of the vehicle.

11. A computer device, comprising a memory and a processor, the memory stores a computer program that can run on the processor, and when the processor executes the program, it implements the steps in the method according to any one of claims 1 to 9.

12. A computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps in the method according to any one of claims 1 to 9.

Citation Information

Patent Citations

  • Fault diagnosis method of clutch

    CN104455378A

  • Emergency starting system during clutch opening and closing breakdown based on vehicle type of MT with PEPS

    CN108639064A

  • Clutch torque transmission abnormity detection method and device, medium and electronic equipment

    CN115045928A

  • Method for detecting adhesion state of clutch in gear shifting process

    CN116398622A

  • Wet clutch adhesion fault processing method, device and equipment and storage medium

    CN117967783A