Clutch slip fault processing method, device, electronic device and storage medium
By judging and increasing the main oil circuit pressure when driving in the target gear of the vehicle and adjusting the oil pressure with the PI regulator, the problem of clutch slip fault in the automatic transmission cannot be repaired, and the fault self-repair and safety hazard reduction are achieved.
Patent Information
- Application Number
- CN202310230633.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-07
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2043-03-07
AI Technical Summary
In the prior art, automatic transmissions cannot self-repair when there is a slippage failure of the clutch, resulting in safety hazards and damage to the hydraulic automatic transmission.
When the vehicle is driving in the target gear, determine whether the main oil circuit pressure value is less than the maximum value, and increase the main oil circuit pressure if necessary, and use the PI regulator to adjust the oil pressure to eliminate slippage faults.
It realizes self-repair of clutch slip faults, reduces driving safety hazards and protects the hydraulic automatic transmission, avoiding further damage.
Smart Images

Figure CN116221392B_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of transmissions, and in particular to a clutch slip fault processing method, device, electronic device, and storage medium. Background Art
[0002] During automatic transmission operation, gear shifting is achieved by changing the working conditions of the clutch and brake. In practice, due to insufficient transmission oil pressure or clutch failure, the clutch may slip, causing the clutch steel plate or friction plate to overheat and fail, resulting in the transmission's inability to effectively transmit torque.
[0003] Existing vehicles are usually equipped with a friction diagnosis function, which can report the fault when a friction fault occurs in the vehicle, but cannot achieve self-repair of the friction fault. Summary of the Invention
[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a clutch slip fault processing method, device, electronic device and storage medium.
[0005] In a first aspect, the present disclosure provides a method for handling a clutch slippage fault, comprising:
[0006] When the vehicle is traveling in a target gear and a slip fault occurs in the clutch of the vehicle, determining whether the current main oil circuit pressure value is less than the maximum main oil circuit oil pressure value of the target gear;
[0007] If the current main oil circuit pressure value is less than the maximum main oil circuit pressure value of the target gear, increase the main oil circuit pressure value.
[0008] In a second aspect, the present disclosure further provides a clutch slip fault processing device, comprising:
[0009] a judgment module, configured to judge whether a current main oil circuit pressure value is less than a maximum main oil circuit oil pressure value of the target gear when the vehicle is traveling in the target gear and a slip fault occurs in the clutch of the vehicle;
[0010] The increasing module is used to increase the main oil circuit pressure value if the current main oil circuit pressure value is less than the maximum main oil circuit pressure value of the target gear.
[0011] In a third aspect, the present disclosure further provides an electronic device, comprising: a processor and a memory;
[0012] The processor is used to execute the steps of any of the above methods by calling the program or instructions stored in the memory.
[0013] In a fourth aspect, the present disclosure further provides a computer-readable storage medium, which stores a program or instruction, and the program or instruction enables a computer to execute the steps of any of the above methods.
[0014] The technical solution provided by the embodiments of the present disclosure has the following advantages over the prior art:
[0015] The technical solution provided by the disclosed embodiment is designed to determine whether the current main oil circuit pressure value is less than the maximum main oil circuit pressure value for the target gear when the vehicle is traveling in the target gear and a slipping fault occurs in the clutch. If the current main oil circuit pressure value is less than the maximum main oil circuit pressure value for the target gear, the main oil circuit pressure value is increased. In essence, when a slipping fault is detected in the vehicle clutch, the fault self-repair is performed. This can reduce safety hazards in subsequent driving and avoid damage to the hydraulic automatic transmission. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0017] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0018] Figure 1 This is a flow chart of a method for handling a clutch slippage fault provided by an embodiment of the present disclosure;
[0019] Figure 2 A schematic diagram of a PI regulator provided in an embodiment of the present disclosure;
[0020] Figure 3 A schematic diagram showing the change of slip and main oil circuit oil pressure over time during the process of increasing the main oil circuit pressure value provided by an embodiment of the present disclosure;
[0021] Figure 4 1 is a flow chart of another clutch slip fault processing method provided by an embodiment of the present disclosure;
[0022] Figure 5 A schematic structural diagram of a clutch slippage fault processing device proposed in an embodiment of the present disclosure;
[0023] Figure 6 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION
[0024] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.
[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.
[0026] Figure 1 This is a flow chart of a method for handling a clutch slippage fault provided by an embodiment of the present disclosure. Figure 1 The method is applicable to situations where a vehicle has a slip fault and can be executed by a transmission controller in the vehicle. The method may include the following steps:
[0027] S110: When the vehicle is traveling in a target gear and a slip fault occurs in a clutch of the vehicle, it is determined whether the current main oil circuit pressure value is less than the maximum main oil circuit oil pressure value of the target gear.
[0028] The target gear refers to a forward gear or a reverse gear.
[0029] There are many methods for determining whether a slip fault occurs in the clutch of a vehicle, and this application does not limit this. In some embodiments, optionally, the method for determining whether a slip fault occurs in the clutch of a vehicle includes: determining whether the speed of the clutch locked by the brake exceeds a preset speed. Or, optionally, the method for determining whether a slip fault occurs in the clutch of a vehicle includes: obtaining the input shaft speed and output shaft speed of the automatic transmission, determining the actual transmission ratio based on the input shaft speed and the output shaft speed; and determining whether the actual transmission ratio is less than the preset transmission ratio corresponding to the target gear. The preset speed and the preset transmission ratio are both parameters used to determine whether a slip fault occurs in the clutch, and this application does not limit the specific values of each parameter.
[0030] The maximum main oil circuit oil pressure value of the target gear may refer to the maximum main oil circuit oil pressure value that can be formed or achieved at the target gear. In some embodiments, the maximum main oil circuit oil pressure value of the target gear may be different for different target gears.
[0031] If the current main oil circuit pressure value is less than the maximum main oil circuit pressure value for the target gear, it means that there is room for further increase in the main oil circuit pressure value. If the current main oil circuit pressure value is equal to the maximum main oil circuit pressure value for the target gear, it means that there is no room for further increase in the main oil circuit pressure value.
[0032] S120: If the current main oil circuit pressure value is less than the maximum main oil circuit pressure value of the target gear, increase the main oil circuit pressure value.
[0033] If the current main oil pressure is less than the maximum main oil pressure for the target gear, increasing the main oil pressure can tighten the clutch, thereby increasing the transmission ratio and eliminating clutch slip. Therefore, increasing the main oil pressure can be considered a self-repair method.
[0034] The above-mentioned technical solution, when a vehicle is traveling in a target gear and a clutch slip fault occurs, determines whether the current main oil circuit pressure value is less than the maximum main oil circuit pressure value for the target gear; if the current main oil circuit pressure value is less than the maximum main oil circuit pressure value for the target gear, the main oil circuit pressure value is increased. The essence of this technical solution is to perform fault self-repair upon detecting a clutch slip fault. This reduces safety risks during subsequent driving and prevents damage to the hydraulic automatic transmission.
[0035] In the above technical solution, there are multiple methods for increasing the main oil circuit pressure value, which are not limited in this application. In one embodiment, the method for increasing the main oil circuit pressure value includes: obtaining the current vehicle slip, the current main oil circuit pressure value, and the desired slip; inputting the current vehicle slip and the desired slip into a PI regulator to obtain a target oil pressure increment; determining a target oil pressure value, where the target oil pressure value is equal to the sum of the current main oil circuit pressure value and the target oil pressure increment; if the target oil pressure value is less than or equal to the maximum main oil circuit oil pressure value for the target gear, adjusting the opening of the proportional solenoid valve on the vehicle transmission valve plate so that the adjusted main oil circuit pressure value equals the target oil pressure value.
[0036] A PI regulator is a linear controller that controls the controlled object by forming a control deviation between a given value and the actual output value. The proportional and integral of the deviations are linearly combined to form a control variable. In this application, the actual output value can be the current vehicle slip, and the given value can be the desired slip—the desired slip within the tolerance range after the slip fault is eliminated. In other words, the slip fault is considered eliminated when the vehicle's actual slip equals the desired slip. In some embodiments, the desired slip can be set to 0.
[0037] Optionally, if the target oil pressure value is greater than the maximum value of the main oil circuit oil pressure at the target gear, the opening of the proportional solenoid valve on the vehicle transmission valve plate is adjusted so that the adjusted main oil circuit pressure value is equal to the maximum value of the main oil circuit oil pressure at the target gear. Since the maximum value of the main oil circuit oil pressure may refer to the maximum value of the main oil circuit oil pressure that can be formed or reached at the target gear. If the target oil pressure value is greater than the maximum value of the main oil circuit oil pressure at the target gear, it means that the main oil circuit oil pressure cannot reach the target oil pressure value, so the adjusted main oil circuit pressure value is set to be equal to the maximum value of the main oil circuit oil pressure at the target gear. It should be noted that in this case, after adjusting the opening of the proportional solenoid valve on the vehicle transmission valve plate, the slipping fault cannot be completely eliminated, and the slipping fault can only be improved to a certain extent.
[0038] Furthermore, the current vehicle slip and the expected slip are input into the PI regulator to obtain the target oil pressure increment, including: obtaining the P-phase gain value and the I-phase gain value; inputting the P-phase gain value, the I-phase gain value, the expected slip and the current vehicle slip into the PI regulator to obtain the target oil pressure increment.
[0039] It should be noted that the process of adjusting the main oil circuit pressure using a PI regulator involves multiple adjustments, not a one-time process. Specifically, increasing the main oil circuit pressure involves repeatedly performing the main oil circuit pressure adjustment steps until the clutch slippage fault in the vehicle is eliminated after adjustment, or until the clutch slippage fault is not eliminated after adjustment, but the adjusted main oil circuit pressure equals the maximum main oil circuit pressure for the target gear. The main oil circuit pressure value adjustment step includes: obtaining the current vehicle slip, the current main oil circuit pressure value and the expected slip; inputting the current vehicle slip and the expected slip into the PI regulator to obtain a target oil pressure increment; determining a target oil pressure value, the target oil pressure value being equal to the sum of the current main oil circuit pressure value and the target oil pressure increment; judging whether the target oil pressure value is less than or equal to the maximum main oil circuit oil pressure of the target gear; if the target oil pressure value is less than or equal to the maximum main oil circuit oil pressure of the target gear, adjusting the opening of the proportional solenoid valve on the vehicle transmission valve plate so that the adjusted main oil circuit pressure value is equal to the target oil pressure value; judging whether the clutch slip fault in the vehicle is eliminated after adjusting the opening of the proportional solenoid valve.
[0040] Figure 2 A schematic diagram of a PI regulator provided in an embodiment of the present disclosure. Figure 2 This is a schematic diagram showing the change of slip and main oil circuit pressure over time in the process of increasing the main oil circuit pressure value provided by the embodiment of the present disclosure. Figure 2 and Figure 3 For example, when the main oil circuit pressure value adjustment step is performed for the mth time, the target oil pressure increment U(n) obtained by using the PI regulator can be expressed as follows:
[0041]
[0042] Where T is a constant, K P is the P phase gain value, K I is the I-phase gain value, and e(n) is the difference between the current vehicle slip and the expected slip.
[0043] Figure 3 middle,
[0044] Based on the above technical solution, optionally, before obtaining the P-phase gain value and the I-phase gain value, the method further includes: calibrating the P-phase gain and the I-phase gain. The method further includes: obtaining a reference slip; assigning values to the P-phase gain and the I-phase gain to obtain assigned P-phase gain values and assigned I-phase gain values; inputting the assigned P-phase gain value, the assigned I-phase gain value, the reference slip, and the desired slip into a PI regulator to determine an adjustment time for the entire process of using the PI regulator to change the reference slip to the desired slip and / or the longitudinal acceleration of the vehicle; if the adjustment time is within a set time range and / or the longitudinal acceleration is within a set acceleration range, using the assigned P-phase gain value as the calibrated P-phase gain value and using the assigned I-phase gain value as the calibrated I-phase gain value; and in obtaining the P-phase gain value and the I-phase gain value, the obtained P-phase gain value is the calibrated P-phase gain value, and the obtained I-phase gain value is the calibrated I-phase gain value.
[0045] The reference slip is a specific, pre-specified slip value, and the set duration range and set acceleration range are pre-specified specific ranges. The reference slip, set duration range, and set acceleration range are used to determine whether the assigned P-phase gain value and the assigned I-phase gain value are suitable for use as calibration results. This application does not restrict the specific value of the reference slip. This application does not restrict the specific value of the reference slip, or the specific ranges selected for the reference slip and set duration range.
[0046] Assigning values to the P-phase gain and the I-phase gain refers to specifying specific values for the P-phase gain and the I-phase gain respectively.
[0047] By setting that if the adjustment time is within the set time range and / or the longitudinal acceleration is within the set acceleration range, the assigned P-phase gain value will be used as the calibrated P-phase gain value, and the assigned I-phase gain value will be used as the calibrated I-phase gain value. This ensures that the calibration results of the P-phase gain and I-phase gain are reasonable, avoids the adverse conditions of excessively long adjustment time, impact on the clutch during the adjustment process, and affecting the driving experience.
[0048] Figure 44 is a flow chart of another clutch slip fault processing method provided by an embodiment of the present disclosure. Figure 4 for Figure 1 A specific example of . See Figure 4 , the method comprises the following steps:
[0049] S210: When the vehicle is traveling in the target gear and a slip fault occurs in the clutch of the vehicle, determine whether the current main oil circuit pressure value is less than the maximum main oil circuit oil pressure value of the target gear.
[0050] S220: If the current main oil circuit pressure value is less than the maximum main oil circuit pressure value of the target gear, increase the main oil circuit pressure value.
[0051] S230: If the main oil circuit pressure value increases to equal the maximum main oil circuit pressure value of the target gear and the clutch slip fault is not eliminated, the slip counter value of the target gear is increased by one.
[0052] Optionally, each gear position is provided with a corresponding gear slip counter. The slip counter is used to count the number of clutch slip faults that occur in the corresponding gear position. If the clutch slip fault cannot be eliminated by increasing the main oil circuit pressure, the slip counter corresponding to the target gear position is incremented by one.
[0053] S240: When the slip count value of the target gear exceeds a preset value, output a prompt message for prompting that a slip fault occurs in the automatic transmission at the target gear.
[0054] If the slip count value of the target gear exceeds a preset value, it indicates that the automatic transmission has too many non-self-repairable slip faults in the target gear. The slip fault of the automatic transmission in the target gear is reported to the user through a prompt message, so that the user can pay attention to the slip fault in time and repair it.
[0055] Optionally, the prompt information includes a fault code, which makes it easier for the user to understand what type of fault the vehicle has.
[0056] The above technical solution is arranged such that if the clutch slip fault is not eliminated after the main oil circuit pressure value increases to a value equal to the maximum main oil circuit oil pressure of the target gear, the slip counter value of the target gear is increased by one; when the slip counter value of the target gear exceeds the preset value, a prompt message is output to prompt that the automatic transmission has a slip fault in the target gear, thereby ensuring that the slip fault that cannot be self-repaired can be known to the user, thereby ensuring the user's driving safety.
[0057] Based on the above technical solution, optionally, when the vehicle is powered on, the slip counter value of the target gear is set to 0; and / or, after outputting a prompt message indicating that the automatic transmission has experienced a slip fault in the target gear, the slip counter value of the target gear is set to 0. This configuration facilitates accurate determination of whether a slip fault that cannot be self-repaired exists.
[0058] It should be noted that for the aforementioned method embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.
[0059] Figure 5 This is a schematic diagram of the structure of a clutch slip fault processing device proposed in an embodiment of the present disclosure, as shown in FIG. Figure 5 As shown, the device includes:
[0060] The judgment module 510 is used to judge whether the current main oil circuit pressure value is less than the maximum main oil circuit oil pressure value of the target gear when the vehicle is traveling in the target gear and a slip fault occurs in the clutch of the vehicle;
[0061] The increasing module 520 is configured to increase the main oil circuit pressure value if the current main oil circuit pressure value is less than the maximum main oil circuit pressure value of the target gear.
[0062] Furthermore, the increasing module 520 is used to:
[0063] Get the current vehicle slip, current main oil circuit pressure value and expected slip;
[0064] Inputting the current vehicle slip and the expected slip into a PI regulator to obtain a target oil pressure increment;
[0065] Determining a target oil pressure value, where the target oil pressure value is equal to the sum of the current main oil circuit pressure value and the target oil pressure increment;
[0066] If the target oil pressure value is less than or equal to the maximum main oil circuit oil pressure of the target gear, adjust the opening of the proportional solenoid valve on the vehicle transmission valve plate so that the adjusted main oil circuit pressure value is equal to the target oil pressure value.
[0067] Furthermore, the increasing module 520 is used to:
[0068] If the target oil pressure value is greater than the maximum main oil circuit oil pressure of the target gear, adjust the opening of the proportional solenoid valve on the vehicle transmission valve plate so that the adjusted main oil circuit pressure value is equal to the maximum main oil circuit oil pressure of the target gear.
[0069] Furthermore, the increasing module 520 is used to:
[0070] Get the P-phase gain value and the I-phase gain value;
[0071] The P-phase gain value, the I-phase gain value, the desired slip, and the current vehicle slip are input into a PI regulator to obtain a target oil pressure increment.
[0072] Furthermore, the device also includes a calibration module, which is used to:
[0073] Before obtaining the P-phase gain value and the I-phase gain value, calibrating the P-phase gain and the I-phase gain;
[0074] The calibration module is specifically used for:
[0075] Get reference slip;
[0076] Assigning values to the P-phase gain and the I-phase gain to obtain an assigned P-phase gain value and an assigned I-phase gain value;
[0077] Inputting the assigned P-phase gain value, the assigned I-phase gain value, the reference slip, and the desired slip into the PI regulator, and determining an adjustment time for the entire process of changing the reference slip to the desired slip using the PI regulator and / or a longitudinal acceleration of the vehicle;
[0078] If the adjustment duration is within the set duration range and / or the longitudinal acceleration is within the set acceleration range, the assigned P-phase gain value is used as the calibrated P-phase gain value, and the assigned I-phase gain value is used as the calibrated I-phase gain value;
[0079] In the obtaining of the P-phase gain value and the I-phase gain value, the obtained P-phase gain value is a calibrated P-phase gain value, and the obtained I-phase gain value is a calibrated I-phase gain value.
[0080] Furthermore, the device also includes a counting module and an output module.
[0081] The counting module is used for:
[0082] If the clutch slip fault is not eliminated after the main oil circuit pressure value increases to be equal to the maximum main oil circuit oil pressure value of the target gear, the slip counter value of the target gear is increased by one;
[0083] The output module is used for: when the slip count value of the target gear exceeds the preset value, outputting prompt information for prompting the automatic transmission that a slip fault occurs at the target gear.
[0084] Furthermore, the counting module is also used to:
[0085] When the vehicle is powered on, the friction counter value of the target gear is set to 0; and / or,
[0086] After outputting a prompt message for prompting the automatic transmission that a slip fault occurs in the target gear, the slip count value of the target gear is set to 0.
[0087] The apparatus disclosed in the above embodiments can implement the process of the method disclosed in the above method embodiments and has the same or corresponding beneficial effects. To avoid repetition, they will not be described here.
[0088] Figure 6 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present disclosure is shown in FIG. Figure 6 As shown, the electronic device includes:
[0089] One or more processors 301, Figure 6 A processor 301 is taken as an example;
[0090] Memory 302;
[0091] The electronic device may further include: an input device 303 and an output device 304 .
[0092] The processor 301, memory 302, input device 303 and output device 304 in the electronic device can be connected through a bus or other means. Figure 6 The bus connection is taken as an example.
[0093] Memory 302, as a non-transitory computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the clutch slippage fault handling method in the embodiments of the present disclosure. Processor 301 executes the software programs, instructions, and modules stored in memory 302 to execute various server functional applications and data processing, thereby implementing the clutch slippage fault handling method in the aforementioned method embodiment.
[0094] The memory 302 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 302 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 302 may optionally include a memory remotely arranged relative to the processor 301, and these remote memories may be connected to the terminal device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.
[0095] The input device 303 may be used to receive input digital or character information and generate signal input related to user settings and function control of the electronic device. The output device 304 may include a display device such as a display screen.
[0096] The present disclosure also provides a computer-readable storage medium storing a program or instruction, which, when executed by a computer, is used to execute a clutch slip fault processing method, the method comprising:
[0097] When the vehicle is traveling in a target gear and a slip fault occurs in the clutch of the vehicle, determining whether the current main oil circuit pressure value is less than the maximum main oil circuit oil pressure value of the target gear;
[0098] If the current main oil circuit pressure value is less than the maximum main oil circuit pressure value of the target gear, increase the main oil circuit pressure value.
[0099] Optionally, when executed by a computer processor, the computer executable instructions can also be used to execute the technical solution of the clutch slip fault processing method provided by any embodiment of the present disclosure.
[0100] Through the above description of the implementation methods, those skilled in the art can clearly understand that the present disclosure can be implemented with the help of software and necessary general-purpose hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer's floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment of the present disclosure.
[0101] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device 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 device. 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 device comprising the element.
[0102] The foregoing description is intended only to provide specific embodiments of the present disclosure, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the embodiments described herein, but rather to be construed in the broadest manner consistent with the principles and novel features disclosed herein.
Claims
1. A method for handling clutch slippage fault, characterized in that: include: When the vehicle is traveling in a target gear and a slip fault occurs in the clutch of the vehicle, determining whether the current main oil circuit pressure value is less than the maximum main oil circuit oil pressure value of the target gear; If the current main oil circuit pressure value is less than the maximum main oil circuit pressure value of the target gear, increase the main oil circuit pressure value; Increasing the main oil circuit pressure value includes: Get the current vehicle slip, current main oil circuit pressure value and expected slip; Inputting the current vehicle slip and the expected slip into a PI regulator to obtain a target oil pressure increment; Determining a target oil pressure value, where the target oil pressure value is equal to the sum of the current main oil circuit pressure value and the target oil pressure increment; If the target oil pressure value is less than or equal to the maximum main oil circuit oil pressure value of the target gear, adjusting the opening of the proportional solenoid valve on the vehicle transmission valve plate so that the adjusted main oil circuit pressure value is equal to the target oil pressure value; The step of inputting the current vehicle slip and the expected slip into a PI regulator to obtain a target oil pressure increment includes: Get the P-phase gain value and the I-phase gain value; The P-phase gain value, the I-phase gain value, the desired slip, and the current vehicle slip are input into a PI regulator to obtain a target oil pressure increment.
2. The method according to claim 1, characterized in that Also includes: If the target oil pressure value is greater than the maximum main oil circuit oil pressure of the target gear, adjust the opening of the proportional solenoid valve on the vehicle transmission valve plate so that the adjusted main oil circuit pressure value is equal to the maximum main oil circuit oil pressure of the target gear.
3. The method according to claim 1, characterized in that Before obtaining the P-phase gain value and the I-phase gain value, the method further includes: Calibrate the P-phase gain and the I-phase gain; The calibrating the P-phase gain and the I-phase gain includes: Get reference slip; Assigning values to the P-phase gain and the I-phase gain to obtain an assigned P-phase gain value and an assigned I-phase gain value; Inputting the assigned P-phase gain value, the assigned I-phase gain value, the reference slip, and the desired slip into the PI regulator, and determining an adjustment time for the entire process of changing the reference slip to the desired slip using the PI regulator and / or a longitudinal acceleration of the vehicle; If the adjustment duration is within the set duration range and / or the longitudinal acceleration is within the set acceleration range, the assigned P-phase gain value is used as the calibrated P-phase gain value, and the assigned I-phase gain value is used as the calibrated I-phase gain value; In the obtaining of the P-phase gain value and the I-phase gain value, the obtained P-phase gain value is a calibrated P-phase gain value, and the obtained I-phase gain value is a calibrated I-phase gain value.
4. The method according to claim 1, wherein Also includes: If the clutch slip fault is not eliminated after the main oil circuit pressure value increases to be equal to the maximum main oil circuit oil pressure value of the target gear, the slip counter value of the target gear is increased by one; When the slip count value of the target gear exceeds a preset value, a prompt message is outputted to prompt that a slip fault occurs in the automatic transmission at the target gear.
5. The method according to claim 1, wherein Also includes: When the vehicle is powered on, the slip count value of the target gear is set to 0; and / or, After outputting a prompt message for prompting the automatic transmission that a slip fault occurs in the target gear, the slip count value of the target gear is set to 0.
6. A clutch slip fault processing device, characterized in that: include: a judgment module, configured to judge whether a current main oil circuit pressure value is less than a maximum main oil circuit oil pressure value of the target gear when the vehicle is traveling in the target gear and a slip fault occurs in the clutch of the vehicle; An increasing module, configured to increase the main oil circuit pressure value if the current main oil circuit pressure value is less than the maximum main oil circuit pressure value of the target gear; The enlargement module is specifically used for: Get the current vehicle slip, current main oil circuit pressure value and expected slip; Inputting the current vehicle slip and the expected slip into a PI regulator to obtain a target oil pressure increment; Determining a target oil pressure value, where the target oil pressure value is equal to the sum of the current main oil circuit pressure value and the target oil pressure increment; If the target oil pressure value is less than or equal to the maximum main oil circuit oil pressure value of the target gear, adjusting the opening of the proportional solenoid valve on the vehicle transmission valve plate so that the adjusted main oil circuit pressure value is equal to the target oil pressure value; The step of inputting the current vehicle slip and the expected slip into a PI regulator to obtain a target oil pressure increment includes: Get the P-phase gain value and the I-phase gain value; The P-phase gain value, the I-phase gain value, the desired slip, and the current vehicle slip are input into a PI regulator to obtain a target oil pressure increment.
7. An electronic device, characterized in that: include: processor and memory; The processor is configured to execute the steps of the method according to any one of claims 1 to 5 by calling the program or instructions stored in the memory.
8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a program or instruction, and the program or instruction enables a computer to execute the steps of the method according to any one of claims 1 to 5.
Citation Information
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