CN114935003A

CN114935003A - Clutch electromagnetic valve flushing method and device, electronic equipment and storage equipment

Info

Publication number: CN114935003A
Application number: CN202210368043.XA
Authority: CN
Inventors: 辛彩云; 高龙; 李强
Original assignee: Shengrui Transmission Co Ltd
Current assignee: Shengrui Transmission Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-08-23
Anticipated expiration: 2042-04-08

Abstract

The disclosure relates to a method and a device for flushing a clutch electromagnetic valve, electronic equipment and storage equipment, wherein the method comprises the following steps: acquiring a flushing starting instruction by using a 0x2F service in a UDS service, wherein the flushing starting instruction is from a client end in communication connection with a gearbox controller; and forming an electromagnetic valve control signal based on the flushing starting instruction so as to flush a clutch electromagnetic valve in the gearbox. Utilize the technical scheme that this application provided can dash to take off the tiny particle that leads to the jamming, improve the smooth and easy nature of the action of shifting.

Description

Clutch electromagnetic valve flushing method and device, electronic equipment and storage equipment

Technical Field

The present disclosure relates to the field of vehicle technologies, and in particular, to a method and an apparatus for flushing a clutch solenoid valve, an electronic device, and a storage device.

Background

The core component of the automatic transmission automobile is an automatic gearbox, and the automatic transmission automobile controls the action of a relevant clutch electromagnetic valve to realize gear shifting through the cooperation of an electric control system and a hydraulic system of the automatic transmission automobile. When whole car in the operation process, the tiny particle piece that spare part wearing and tearing such as the inside gear of gearbox produced can pile up in the gearbox oil circuit, can cause the solenoid valve case jamming for a long time, and the action of shifting is not smooth and easy, and the big scheduling problem of impact of shifting seriously influences the quality of shifting and customer and drives the comfort.

Disclosure of Invention

In order to solve the technical problems or at least partially solve the technical problems, the disclosure provides a method and a device for flushing a clutch solenoid valve, an electronic device and a storage device.

In a first aspect, the present disclosure provides a clutch solenoid flushing method performed by a transmission controller in a vehicle, the method comprising:

acquiring a flushing starting instruction by using a 0x2F service in a UDS service, wherein the flushing starting instruction is from a client end in communication connection with the gearbox controller;

and forming an electromagnetic valve control signal based on the flushing starting instruction so as to flush a clutch electromagnetic valve in the gearbox.

In a second aspect, the present disclosure also provides a clutch solenoid flushing method, which is performed by a system composed of a transmission controller and a client communicatively connected to the transmission controller in a vehicle, and includes:

using a 0x2F service in a UDS service, the client sending a flush activation instruction to the transmission controller in the vehicle;

and the gearbox controller forms an electromagnetic valve control signal based on the flushing starting instruction so as to flush a clutch electromagnetic valve in the gearbox.

In a third aspect, the present disclosure also provides a clutch solenoid flushing device configured in a transmission controller in a vehicle, the device including:

the system comprises an acquisition module, a transmission controller and a control module, wherein the acquisition module is used for acquiring a flushing starting instruction by using 0x2F service in UDS service, and the flushing starting instruction is from a client end in communication connection with the transmission controller;

and the flushing module is used for forming an electromagnetic valve control signal based on the flushing starting instruction so as to flush the clutch electromagnetic valve in the gearbox.

In a fourth aspect, the present disclosure further provides a clutch solenoid flushing system, where the system includes a transmission controller and a client communicatively connected to the transmission controller;

the client sends a flushing starting instruction to a gearbox controller in the vehicle by using a 0x2F service in the UDS service;

the gearbox controller is used for forming an electromagnetic valve control signal based on the flushing starting instruction so as to flush a clutch electromagnetic valve in the gearbox.

In a fifth aspect, the present disclosure also provides an electronic device, including: a processor and a memory;

the processor is configured to perform the steps of any of the methods described above by calling a program or instructions stored in the memory.

In a sixth aspect, the present disclosure also provides a computer readable storage medium storing a program or instructions for causing a computer to perform the steps of any of the methods described above.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

according to the technical scheme of the embodiment, a flushing starting instruction is obtained through setting, and the flushing starting instruction is from a client side in communication connection with a gearbox controller; based on the flush initiation command, a solenoid control signal is formed to flush a clutch solenoid in the transmission. Utilize the technical scheme that this application provided can dash to take off the tiny particle that leads to the jamming, improve the smooth and easy nature of the action of shifting.

Drawings

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 disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a flow chart of a method for flushing a clutch solenoid according to an embodiment of the present disclosure;

FIG. 2 is a flow chart of another method of flushing a clutch solenoid according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a solenoid control signal provided in an embodiment of the present disclosure;

FIG. 4 is a flow chart of another method of flushing a clutch solenoid according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a flushing device for a clutch solenoid valve according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a flushing system of a clutch solenoid valve according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present disclosure.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Fig. 1 is a flowchart of a method for flushing a clutch solenoid valve according to an embodiment of the present disclosure. The method for flushing the clutch electromagnetic valve is suitable for the conditions of clutch electromagnetic valve spool clamping stagnation and unsmooth gear shifting action. The clutch solenoid flushing method is executed by a transmission controller in a vehicle, and comprises the following steps:

and S110, acquiring a flushing starting instruction, wherein the flushing starting instruction is from a client end in communication connection with the gearbox controller.

The flushing starting instruction is generated by triggering the client by the user.

It is emphasized that in the present application, the client belongs to the external device with respect to the vehicle. Specifically, the client may be a diagnostic instrument, a vehicle offline detection tool, an upper computer, canoe (can environment), and CANape.

And S120, forming an electromagnetic valve control signal based on the flushing starting command so as to flush the electromagnetic valve of the clutch in the gearbox.

The electromagnetic valve control signal is formed by a gearbox controller and is output to the electromagnetic valve to be controlled. Optionally, the solenoid control signal is a current signal. Under the action of the control signal of the electromagnetic valve, the high-frequency action (such as periodic disconnection and combination) of the electromagnetic valve achieves the purpose of flushing away small particles which cause clamping stagnation.

It should be noted that, when the vehicle is in normal operation, the transmission controller generates the electromagnetic valve control signal according to the data collected by the sensor. In the application, the vehicle is in a static state and in a maintenance mode, and the gearbox controller generates an electromagnetic valve control signal according to a flushing starting instruction sent by the client.

According to the technical scheme of the embodiment of the disclosure, a flushing starting instruction is obtained through setting, and the flushing starting instruction is from a client end in communication connection with a gearbox controller; based on the flush initiation command, a solenoid control signal is formed to flush a clutch solenoid in the transmission. Utilize the technical scheme that this application provided can dash to take off the tiny particle that leads to the jamming, improve the smooth and easy nature of the action of shifting.

In one embodiment, fetching a flush initiation instruction includes: with the 0x2F service in the UDS service, a flush initiation instruction is fetched.

The UDS service, ISO14229, is a Unified Diagnostic Services, a Unified Diagnostic service, which is a standardized standard for Diagnostic Services. The 0x2F service is a function in UDS services. The 0x2F service is an input output control service, which is collectively referred to as an InputOutControlByIdentifier. The service is used for a client to actively request an ECU (electronic control unit, ECU refers to a gearbox controller in particular in the application) to control relevant input and output signals.

So-called input-output control, which is simply to mask the actual input-output signal values, the client instead actively sets these signal values in some specific control manner. The application mainly uses the control parameters 0x00 and 0x03 of 0x 2F. Table 1 gives the description information of the two parameters.

TABLE 1

Where the 0x2F service issue instruction needs to be executed according to the standard, as shown in table 2.

TABLE 2

On the basis of the above technical aspects, optionally, S120 may be replaced by: judging whether the current vehicle state meets the scouring condition or not; and if the current vehicle state meets the flushing condition, forming an electromagnetic valve control signal based on the flushing starting instruction so as to flush the electromagnetic valve of the clutch in the gearbox. Namely, only under the condition that the current vehicle state meets the flushing condition, the flushing is carried out; otherwise, no flushing is performed. The arrangement can prejudge the safety of the vehicle in the subsequent flushing process.

In one example, after obtaining the flush initiation instruction, it is periodically determined that the current vehicle state satisfies the flush condition. And if the current vehicle state meets the flushing condition, continuously flushing the electromagnetic valve of the clutch in the gearbox. And if the current vehicle state does not meet the flushing condition, stopping flushing the electromagnetic valve of the clutch in the gearbox.

Optionally, the flush condition comprises: the gear shifting lever is in an N gear, the opening degree of an accelerator pedal is zero, the gearbox is not in a gear shifting state, the gearbox is free of faults, the vehicle speed is 0, the brake pedal is in a treaded state, and the hand brake is in a pulled-up state.

Further, when the UDS service is used with a 0x2F service, the client sends a flush start instruction to a transmission controller in the vehicle, and the transmission controller determines whether the current vehicle state meets a flush condition after receiving the flush start instruction. If the current vehicle state meets the flush condition, the transmission controller returns an affirmative response to the client, as shown in table 3. And if the current vehicle state does not meet the flushing condition, the gearbox controller returns a negative response to the client. Illustratively, the negative response is "7F 2F 22".

TABLE 3

FIG. 2 is a flow chart of another method for flushing a clutch solenoid according to an embodiment of the present disclosure. Fig. 2 is a specific example of fig. 1. Referring to fig. 2, the method includes:

s210, acquiring a flushing starting instruction, wherein the flushing starting instruction is from a client side in communication connection with a gearbox controller; the flush initiation command includes target gear information.

S220, forming a first electromagnetic valve control signal and a second electromagnetic valve control signal based on target gear information in the flushing starting instruction; the first electromagnetic valve control signal is used for controlling the gearbox to be in a target gear; the second solenoid control signal is used to flush the disengaged clutch solenoid in the target gear.

Those skilled in the art will appreciate that in practice, a gearbox often includes a plurality of clutches, each having a solenoid valve. The vehicle can form a plurality of gears during normal operation. In a certain gear, which clutch solenoid valves are engaged and which clutch solenoid valves are disengaged are fixed. Besides the combination mode of engaging or disengaging the clutch electromagnetic valve corresponding to the gear which can be formed when the vehicle normally runs, the combination mode of engaging or disengaging other clutch electromagnetic valves is abnormal. And the longer the abnormal combination lasts, the more damage to the transmission.

In this step, the target gear refers to one of gears that can be formed when the vehicle is operating normally. For example, the normal vehicle operation can form a P gear, an R gear, an N gear, a D1 gear, a D2 gear, a D3 gear, a D4 gear, a D5 gear, a D6 gear, a D7 gear and a D8 gear, and any gear can be determined as a target gear.

According to the technical scheme, a first electromagnetic valve control signal and a second electromagnetic valve control signal are formed by setting target gear information based on a flushing starting instruction; the first electromagnetic valve control signal is used for controlling the gearbox to be in a target gear; the second electromagnetic valve control signal is used for flushing the electromagnetic valve of the clutch which is not combined under the target gear, and the purpose of the second electromagnetic valve control signal is to control the gearbox to firstly form the target gear (namely, a normal gear) and then flush the clutch which is not combined under the target gear, namely, flushing with a gear. This arrangement can reduce the duration of the abnormal combination, sufficiently reducing the influence on the clutch.

On the basis of the above-described solution, optionally, the second solenoid control signal is used to control the unengaged clutch solenoid valve to be fully disengaged and fully engaged periodically in the target gear. The essence of the arrangement is that a proper amplitude value is set for the control signal of the second electromagnetic valve, so that the clutch electromagnetic valve which is not combined is periodically and completely separated and combined, the electromagnetic valve can complete the action with a larger amplitude, impurities in an oil way are flushed away, and the purpose of reducing the clamping stagnation of the clutch electromagnetic valve is achieved.

It should also be noted that in the target gear, only the solenoid valves of several clutches are normally in an unengaged state and can be flushed. In other words, in a target gear, only a few solenoid valves of the clutches can be flushed, and in order to flush all the clutch solenoid valves, the technical scheme of the present application needs to be executed for many times, and the target gear determined each time the technical scheme of the present application is executed is different.

The following describes the above-mentioned method for flushing the clutch solenoid valve in detail with reference to specific examples.

Table 4 is a logic table for combining gears of an 8AT automatic transmission according to an embodiment of the present disclosure. The 8AT automatic transmission is composed of five clutches (B1, C1, C2, C3, and C4, respectively). The P gear and the N gear are formed by combining two clutches (namely B1 and C4). The driving gears R and D1-D8 are formed by combining three clutches. To ensure that the solenoid valves of the five clutches are flushed once, it is necessary to flush the unengaged clutch solenoid valves in at least three gears. Referring to table 4, in position D1, C2 and C3 may be flushed. In the D4 gear, B1 and C1 were flushed. In the D7 position, C3 and C4 can be flushed. Therefore, the purposes of flushing all the clutch electromagnetic valves can be achieved by sequentially using the D1, the D4 and the D7 as target gears for flushing.

TABLE 4

Table 5 gives the flush initiation commands in different target gears, and the response commands. Table 6 shows the flush cancel command and the response command for different target gears.

TABLE 5

TABLE 6

In the D1 gear, the method for flushing the C2 and the C3 is as follows:

and the user triggers the client to generate a flushing starting instruction, wherein the flushing starting instruction comprises target gear information. The target gear information indicates that the target gear is the D1 gear. The client sends a flush activation command to the transmission controller via control parameter 0x03 requesting 0x2F service. Illustratively, the flush initiate instruction is 2F 32000301. Wherein 0x 3200 refers to flushing the C2 and C3 clutch solenoid valves at D1 gear, 03 is the control parameter, 01 is the start of the flush.

After the flush start instruction is sent out, an interface function in the software of the gearbox controller is activated, whether the current vehicle state meets the flush condition or not is judged firstly, if the current vehicle state does not meet the flush condition, a negative response (such as 7F 2F 22) is returned, and the current vehicle state is prompted to not meet the flush condition. The maintenance personnel can detect and adjust the vehicle state according to the scouring condition so that the current vehicle state meets the scouring condition. If the current vehicle state satisfies the flush condition, a positive response is returned (e.g., 6F 32000301). And flushing the gearbox controller according to flushing logic preset in software.

Since the C1, C2 and C3 clutch solenoid valves are normally high solenoid valves and the B1 and C4 clutch solenoid valves are normally low solenoid valves in an 8AT transmission, only the B1 and C4 clutch solenoid valves are engaged since the current gear is N (since the vehicle is required to be N due to the flush condition). To establish gear D1, the C1 clutch solenoid valve is also engaged. Fig. 3 is a schematic diagram of a control signal of a solenoid valve according to an embodiment of the present disclosure. Referring to fig. 3, after receiving a flush start command, firstly, the current value of the control signal of the electromagnetic valve of the C1 clutch is controlled to be reduced to 0mA, so that the electromagnetic valve of the C1 clutch is combined, and a D1 gear is formed. The C2 and C3 clutch solenoid valves are then periodically flushed. Specifically, when the C2 clutch solenoid valve is flushed, the control signal of the C2 clutch solenoid valve is in a rectangular waveform. Wherein, the high level is 1000mA, which can disconnect the electromagnetic valve of the C2 clutch; the low level is 0mA and the C1 clutch solenoid may be engaged. After flushing the C2 clutch solenoid for 5 cycles, the control switch was switched to flushing the C3 clutch solenoid. Similarly, when the C3 clutch solenoid valve is flushed, the control signal has a rectangular waveform. Wherein, the high level is 1000mA, which can disconnect the electromagnetic valve of the C3 clutch; the low level is 0mA and the C3 clutch solenoid may be engaged. After flushing the C3 clutch solenoid for 5 cycles, the control switch was switched to flushing the C2 clutch solenoid. The steps are repeated until a flushing stop command is received. The flush stop command is received from a client communicatively coupled to the transmission controller.

The duration of the flushing of the clutch electromagnetic valve can be any value, and the duration is not limited in the application. In practice, the setting can be made according to the working experience of the maintenance personnel. For example, if the duration of the flush is set to 60s, after 60s is reached, the client sends a flush cancel command to the transmission controller via the control parameter 0x00 requesting 0x2F service. Illustratively, the flush cancellation command sent by the client to the transmission controller is 2F 320000.

In practice, when the D1 position is used to flush C2 and C3, the C2 is flushed first, or the C3 is flushed first, which is not limited in this application. The number of cycles of the output rectangular waveform when flushing C2 or C3 is also not limiting in this application. The specific values of the high and low levels of the rectangular waveform control signal are not limited in the present application.

The method of flushing B1 and C1 in the D4 gear and C3 and C4 in the D7 gear are similar to the method of flushing C2 and C3 in the D1 gear. And will not be described in detail herein.

FIG. 4 is a flow chart of another method for flushing a clutch solenoid according to an embodiment of the present disclosure. The method is executed by a system consisting of a transmission controller in a vehicle and a client communicatively connected to the transmission controller, and referring to fig. 4, the method comprises:

s310, using the 0x2F service in the UDS service, the client sends a flush activation instruction to the transmission controller in the vehicle.

And S320, forming an electromagnetic valve control signal by the gearbox controller based on the flushing starting instruction so as to flush a clutch electromagnetic valve in the gearbox.

According to the technical scheme of the embodiment of the disclosure, a client side is arranged to send a flushing starting instruction to a gearbox controller in a vehicle; and the gearbox controller forms an electromagnetic valve control signal based on the flushing starting instruction so as to flush a clutch electromagnetic valve in the gearbox. Utilize the technical scheme that this application provided can dash to take off the tiny particle that leads to the jamming, improve the smooth and easy nature of the action of shifting.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.

Fig. 5 is a schematic structural diagram of a clutch solenoid flushing device according to an embodiment of the present disclosure, which is configured in a transmission controller in a vehicle. As shown in fig. 5, the apparatus includes:

an obtaining module 410, configured to obtain a flush start instruction by using a 0x2F service in the UDS service, where the flush start instruction is derived from a client communicatively connected to a transmission controller;

and the flushing module 420 is used for forming an electromagnetic valve control signal based on the flushing starting instruction so as to flush the clutch electromagnetic valve in the gearbox.

Further, a flush module 420 for:

judging whether the current vehicle state meets the scouring condition or not;

and if the current vehicle state meets the flushing condition, forming an electromagnetic valve control signal based on the flushing starting instruction so as to flush a clutch electromagnetic valve in the gearbox.

Further, the flush condition includes:

the position of a gear shifting rod is in an N gear, the opening degree of an accelerator pedal is zero, the gearbox is not in a gear shifting state, the gearbox is free of faults, the speed of the vehicle is 0, a brake pedal is in a treaded state, and a hand brake is in a pulled-up state.

Further, the flushing starting instruction comprises target gear information;

a flush module 420 to:

forming a first electromagnetic valve control signal and a second electromagnetic valve control signal based on target gear information in the flushing starting command; the first electromagnetic valve control signal is used for controlling the gearbox to be in a target gear; the second solenoid control signal is used to flush the disengaged clutch solenoid in the target gear.

The device disclosed in the above embodiments can implement the processes of the methods disclosed in the above method embodiments, and has the same or corresponding beneficial effects. To avoid repetition, further description is omitted here.

Fig. 6 is a schematic structural diagram of a clutch solenoid flushing system according to an embodiment of the present disclosure, and as shown in fig. 6, the system includes a transmission controller 510 and a client 520 communicatively connected to the transmission controller; the client 520 sends flush activation instructions to the transmission controller 510 in the vehicle using the 0x2F service in the UDS service. The transmission controller 510 is configured to generate a solenoid control signal based on the flush enable command to flush a clutch solenoid in the transmission.

The system disclosed by the above embodiment can realize the processes of the methods disclosed by the above method embodiments, and has the same or corresponding beneficial effects. To avoid repetition, further description is omitted here.

Fig. 7 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present disclosure, and as shown in fig. 7, the electronic device includes:

one or more processors 301, one processor 301 being illustrated in FIG. 7;

a memory 302;

the electronic device may further include: an input device 303 and an output device 304.

The processor 301, the memory 302, the input device 303 and the output device 304 in the electronic device may be connected by a bus or other means, and fig. 7 illustrates an example of connection by a bus.

The memory 302, which is a non-transitory computer-readable storage medium, may be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the clutch solenoid flushing method in the embodiments of the present disclosure. The processor 301 executes various functional applications of the server and data processing by running software programs, instructions and modules stored in the memory 302, namely, implements the clutch solenoid flushing method of the above-described method embodiment.

The memory 302 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the electronic device, and the like. Further, the memory 302 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 302 optionally includes memory located remotely from processor 301, which may be connected to a terminal device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 303 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic apparatus. The output means 304 may comprise a display device such as a display screen.

The disclosed embodiments also provide a computer-readable storage medium containing a program or instructions that when executed by a computer causes the computer to perform a method for flushing a clutch solenoid valve, the method comprising:

acquiring a flushing starting instruction by using a 0x2F service in a UDS service, wherein the flushing starting instruction is from a client end in communication connection with a gearbox controller;

Optionally, the computer-executable instructions, when executed by the computer processor, may also be used to implement the technical solution of the clutch solenoid flushing method provided in any embodiment of the present disclosure.

From the above description of the embodiments, it is obvious for a person skilled in the art that the present disclosure can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present disclosure may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present disclosure.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A clutch solenoid flushing method, performed by a transmission controller in a vehicle, comprising:

acquiring a flushing starting instruction by utilizing a 0x2F service in a UDS service, wherein the flushing starting instruction is from a client end in communication connection with the gearbox controller;

2. The method of claim 1, wherein said developing a solenoid control signal to flush a clutch solenoid in the transmission based on the flush enable command further comprises:

judging whether the current vehicle state meets a scouring condition or not;

3. The method of claim 2, wherein the flush condition comprises:

the gear shifting lever is in an N gear, the opening degree of an accelerator pedal is zero, the gearbox is not in a gear shifting state, the gearbox is free of faults, the vehicle speed is 0, a brake pedal is in a treading state, and a hand brake is in a pulling-up state.

4. The method of claim 1, wherein the flush initiation instruction includes target gear information;

the forming of a solenoid valve control signal based on the flush initiation command to flush a clutch solenoid valve in the transmission includes:

5. A method for flushing a clutch solenoid valve, the method being performed by a system comprising a transmission controller and a client communicatively coupled to the transmission controller in a vehicle, the method comprising:

6. A clutch solenoid flushing device, characterized in that the device is arranged in a transmission controller in a vehicle, the device comprising:

the acquisition module is used for acquiring a flushing starting instruction by utilizing a 0x2F service in a UDS service, wherein the flushing starting instruction is from a client end in communication connection with the gearbox controller;

and the flushing module is used for forming an electromagnetic valve control signal based on the flushing starting instruction so as to flush the electromagnetic valve of the clutch in the gearbox.

7. A clutch solenoid valve flushing system is characterized by comprising a gearbox controller and a client end in communication connection with the gearbox controller;

8. An electronic device, comprising: a processor and a memory;

the processor is adapted to perform the steps of the method of any one of claims 1 to 4 by calling a program or instructions stored in the memory.

9. A computer-readable storage medium, characterized in that it stores a program or instructions for causing a computer to carry out the steps of the method according to any one of claims 1 to 4.