Washing method of main oil way electromagnetic valve, electronic equipment and readable storage medium

Abstract

The invention provides a flushing method for a main oil way electromagnetic valve, electronic equipment and a readable storage medium. The method comprises the steps that the vehicle running state is obtained; wherein the vehicle running state comprises a clutch state parameter, a running gear parameter and a running mode parameter; according to the clutch state parameters, the running gear parameters and the running mode parameters, the current scouring strategy of a main oil way electromagnetic valve is determined; wherein the scouring strategies comprise a series-connection scouring strategy and a parallel-connection scouring strategy, and scouring current values adopted by main oil way electromagnetic valves in the series-connection scouring strategy and the parallel-connection scouring strategy are different; and according to the current scouring strategy, a main oil way electromagnetic valve of the vehicle is scoured.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a flushing method for a main oil circuit solenoid valve, an electronic device, and a readable storage medium. Background Art

[0002] Hybrid transmission is a new energy hybrid system that has been widely used in recent years. It has the advantages of low energy consumption and sufficient power. The structure of hybrid transmission can make the engine always work in the high efficiency range, improving fuel economy. At the same time, the addition of dual motors enables it to cooperate with the engine to provide strong torque output in parallel mode, improving the power of the whole vehicle.

[0003] There are three valve bodies in the hybrid transmission, namely the main oil circuit solenoid valve, clutch solenoid valve, and shift solenoid valve. The main oil circuit solenoid valve is responsible for establishing the overall pressure and plays a vital role. During long-term use, the wear of the transmission movement components will cause oil contamination, which will affect the control quality of the main oil circuit pressure solenoid valve and may even cause the solenoid valve to get stuck, seriously affecting driving safety. Therefore, it is particularly important to flush the main oil circuit solenoid valve to prevent the solenoid valve from getting stuck.

[0004] Currently, a single flushing mode is generally used for flushing the clutch solenoid valve, but this single flushing mode is prone to cause the problem of poor flushing effect. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a flushing method, electronic device and readable storage medium for a main oil circuit solenoid valve, so as to solve the problem of poor flushing effect of flushing the main oil circuit solenoid valve in the current hybrid transmission using a single flushing mode.

[0006] In a first aspect, the present invention provides a method for flushing a main oil circuit solenoid valve, the method comprising: obtaining a vehicle driving state; wherein the vehicle driving state includes clutch state parameters, driving gear parameters and driving mode parameters; determining a current flushing strategy of the main oil circuit solenoid valve according to the clutch state parameters, driving gear parameters and driving mode parameters; wherein the flushing strategy includes a series flushing strategy and a parallel flushing strategy, and the flushing current values ​​used by the main oil circuit solenoid valve in the series flushing strategy and the parallel flushing strategy are different; according to the current flushing strategy, flushing the main oil circuit solenoid valve of the vehicle.

[0007] The flushing method of the main oil circuit solenoid valve designed above, this scheme first obtains the driving state of the vehicle, and then this scheme adopts different flushing strategies to flush the main oil circuit solenoid valve when the vehicle is in different driving states. Different flushing strategies use different flushing current values, so that the flushing of the main oil circuit solenoid valve will not affect the driving state of the vehicle. A flushing strategy that is more suitable for the current driving state is adopted to flush the main oil circuit solenoid valve, thereby improving the flushing effect of the main oil circuit solenoid valve under different driving states of the vehicle.

[0008] In an optional implementation manner of the first aspect, determining a current flushing strategy of the main oil circuit solenoid valve according to a clutch state parameter, a driving gear parameter, and a driving mode parameter includes:

[0009] If it is determined that the clutch state parameter is a disengaged state, the driving gear parameter is a first target gear, and the driving mode is a series driving mode, then the current flushing strategy of the main oil circuit solenoid valve is determined to be a series flushing strategy.

[0010] In an optional implementation of the first aspect, the main oil circuit solenoid valve of the vehicle is flushed according to the current flushing strategy, including: flushing the main oil circuit solenoid valve with a first flushing current value; when the flushing operation time reaches a first time, flushing the main oil circuit solenoid valve with a second flushing current value; when the flushing operation time reaches a second time, flushing the main oil circuit solenoid valve with the first flushing current value; wherein the first flushing current value is less than the second flushing current value, and the first flushing current value is less than the current request value of the main oil circuit solenoid valve in the parallel mode of the engine and the motor; the second flushing current value is the maximum flushing current of the main oil circuit solenoid valve.

[0011] In the above implementation mode, when the clutch of the vehicle is in a disengaged state and the vehicle is in a series driving mode, that is, a driving mode in which the engine generates electricity and the motor is responsible for driving, this scheme first flushes the main oil circuit solenoid valve with a small current, then flushes it with the maximum flushing current value that the main oil circuit solenoid valve can withstand, and finally flushes the main oil circuit solenoid valve with a small current, thereby improving the flushing effect of the main oil circuit solenoid valve by switching between small current and large current.

[0012] In an optional implementation manner of the first aspect, the first flush current value includes any flush current value between 0 mA and 30 mA, and the second flush current value includes 1500 mA.

[0013] In an optional implementation of the first aspect, the current flushing strategy of the main oil circuit solenoid valve is determined according to the clutch state parameter, the driving gear parameter and the driving mode parameter, including: if the clutch state parameter is determined to be a engaged state, the driving gear parameter is the second target gear, and the driving mode is a parallel driving mode, then the current flushing strategy of the main oil circuit solenoid valve is determined to be a parallel flushing strategy.

[0014] In an optional implementation of the first aspect, the main oil circuit solenoid valve of the vehicle is flushed according to the current flushing strategy, including: flushing the main oil circuit solenoid valve with a third flushing current value; when the flushing operation time reaches a third time, flushing the main oil circuit solenoid valve with a fourth flushing current value; when the flushing operation time reaches a fourth time, flushing the main oil circuit solenoid valve with a third flushing current value; wherein the third flushing current value is less than the fourth flushing current value, the third flushing current value is the current request value of the main oil circuit solenoid valve in the parallel mode of the engine and the motor; the fourth flushing current value is the maximum flushing current of the main oil circuit solenoid valve.

[0015] In the above implementation mode, when the clutch of the vehicle is in the engaged state and the vehicle is in the parallel driving mode, that is, the driving mode driven by the engine and the motor together, the scheme first flushes the main oil circuit solenoid valve by using the current request value of the main oil circuit solenoid valve in the engine and motor parallel mode, and then flushes it by using the maximum flushing current value (the fourth flushing current value) that the main oil circuit solenoid valve can withstand, and finally flushes the main oil circuit solenoid valve by using the current request value of the main oil circuit solenoid valve in the engine and motor parallel mode. Since the scheme flushes the main oil circuit solenoid valve by using the current request value of the main oil circuit solenoid valve in the engine and motor parallel mode, the third flushing current value used will not affect the parallel driving model currently in which the vehicle is in, that is, the flow change of the main oil circuit solenoid valve will not affect the action of the clutch solenoid valve and the shift valve body; in addition, the scheme uses the maximum flushing current value (the fourth flushing current value) that the main oil circuit solenoid valve can withstand for flushing, which can improve the flushing effect of the main oil circuit solenoid valve.

[0016] In an optional implementation of the first aspect, before obtaining the vehicle driving status, the method also includes: obtaining the vehicle's operating parameter information; determining whether the vehicle meets the flushing enable condition based on the vehicle's operating parameter information; if it is determined that the flushing enable condition is met, executing the step of obtaining the vehicle's driving status.

[0017] In an optional implementation manner of the first aspect, the operating parameter information of the vehicle includes current mileage information, main oil circuit solenoid valve information and clutch solenoid valve information; based on the operating parameter information of the vehicle, determining whether the vehicle meets the flushing enable condition includes: judging whether the main oil circuit solenoid valve is faulty based on the main oil circuit solenoid valve information; if it is determined that the main oil circuit solenoid valve is not faulty, judging whether the clutch solenoid valve is flush-enabled based on the clutch solenoid valve information; if it is determined that the clutch solenoid valve is not flush-enabled, judging whether the current mileage information reaches the preset mileage; if it is determined that the current mileage information reaches the preset mileage, determining that the vehicle meets the flushing enable condition.

[0018] In the above implementation mode, before flushing the main oil circuit solenoid valve, this scheme determines whether the vehicle meets the flushing enable conditions based on the vehicle's operating parameter information, and only flushes the main oil circuit solenoid valve when the vehicle meets the flushing enable conditions, thereby improving the reliability of flushing the main oil circuit solenoid valve.

[0019] In the second aspect, the present application provides a flushing device for a main oil circuit solenoid valve, the device comprising an acquisition module, a determination module and a flushing module, the acquisition module being used to acquire a vehicle driving state; wherein the vehicle driving state comprises clutch state parameters, driving gear parameters and driving mode parameters; the determination module being used to determine a current flushing strategy of the main oil circuit solenoid valve according to the clutch state parameters, driving gear parameters and driving mode parameters; wherein the flushing strategy comprises a series flushing strategy and a parallel flushing strategy, and the flushing current values ​​adopted by the main oil circuit solenoid valve in the series flushing strategy and the parallel flushing strategy are different; the flushing module being used to flush the main oil circuit solenoid valve of the vehicle according to the current flushing strategy.

[0020] The flushing device of the main oil circuit solenoid valve designed above, this scheme first obtains the driving state of the vehicle, and then this scheme adopts different flushing strategies to flush the main oil circuit solenoid valve when the vehicle is in different driving states. Different flushing strategies use different flushing current values, so that the flushing of the main oil circuit solenoid valve will not affect the driving state of the vehicle. A flushing strategy that is more suitable for the current driving state is adopted to flush the main oil circuit solenoid valve, thereby improving the flushing effect of the main oil circuit solenoid valve under different driving states of the vehicle.

[0021] In an optional implementation of the second aspect, the determination module is specifically used to determine that the current flushing strategy of the main oil circuit solenoid valve is a series flushing strategy if the clutch state parameter is determined to be a disengaged state, the driving gear parameter is the first target gear, and the driving mode is a series driving mode.

[0022] In an optional implementation of the second aspect, the flushing module is specifically used to flush the main oil circuit solenoid valve with a first flushing current value; when the flushing operation time reaches a first time, the main oil circuit solenoid valve is flushed with a second flushing current value; when the flushing operation time reaches a second time, the main oil circuit solenoid valve is flushed with the first flushing current value; wherein the first flushing current value is less than the second flushing current value, and the first flushing current value is less than the current request value of the main oil circuit solenoid valve in the parallel mode of the engine and the motor; the second flushing current value is the maximum flushing current of the main oil circuit solenoid valve.

[0023] In an optional implementation of the second aspect, the determination module is also specifically used to determine that the current flushing strategy of the main oil circuit solenoid valve is a parallel flushing strategy if the clutch state parameter is determined to be an engaged state, the driving gear parameter is the second target gear, and the driving mode is a parallel driving mode.

[0024] In an optional implementation of the second aspect, the flushing module is further specifically used to flush the main oil circuit solenoid valve with a third flushing current value; when the flushing operation time reaches a third time, the main oil circuit solenoid valve is flushed with a fourth flushing current value; when the flushing operation time reaches a fourth time, the main oil circuit solenoid valve is flushed with the third flushing current value; wherein the third flushing current value is less than the fourth flushing current value, the third flushing current value is the current request value of the main oil circuit solenoid valve in the parallel mode of the engine and the motor; the fourth flushing current value is the maximum flushing current of the main oil circuit solenoid valve.

[0025] In an optional implementation of the second aspect, the acquisition module is also used to acquire the operating parameter information of the vehicle; the determination module is also used to determine whether the vehicle meets the flushing enable condition based on the operating parameter information of the vehicle; the device also includes an execution module, which is used to execute the step of acquiring the driving status of the vehicle when the determination module determines that the flushing enable condition is met.

[0026] In an optional implementation of the second aspect, the vehicle's operating parameter information includes current mileage information, main oil circuit solenoid valve information and clutch solenoid valve information; the determination module is also specifically used to determine whether the main oil circuit solenoid valve is faulty based on the main oil circuit solenoid valve information; if it is determined that the main oil circuit solenoid valve is not faulty, then determine whether the clutch solenoid valve is flush enabled based on the clutch solenoid valve information; if it is determined that the clutch solenoid valve is not flush enabled, then determine whether the current mileage information reaches the preset mileage; if it is determined that the current mileage information reaches the preset mileage, then determine that the vehicle meets the flushing enable conditions.

[0027] In a third aspect, the present invention provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes any optional method described in the first aspect when executing the computer program.

[0028] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs any optional method described in the first aspect.

[0029] In a fifth aspect, the present invention provides a computer program product, comprising a computer program / instruction, which, when executed by a processor, performs the steps of any optional method described in the first aspect.

[0030] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A first flow chart of a method for flushing a main oil circuit solenoid valve provided in an embodiment of the present application;

[0033] Figure 2 A second flow chart of a method for flushing a main oil circuit solenoid valve provided in an embodiment of the present application;

[0034] Figure 3 A third flow chart of a method for flushing a main oil circuit solenoid valve provided in an embodiment of the present application;

[0035] Figure 4 A fourth flow chart of a method for flushing a main oil circuit solenoid valve provided in an embodiment of the present application;

[0036] Figure 5 A schematic diagram of the structure of a flushing device for a main oil circuit solenoid valve provided in an embodiment of the present application;

[0037] Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0038] Icons: 500 - acquisition module; 510 - determination module; 520 - flushing module; 530 - execution module; 6 - electronic device; 601 - processor; 602 - memory; 603 - communication bus. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0045] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] Hybrid transmission is a new energy hybrid system that has been widely used in recent years. It has the advantages of low energy consumption and sufficient power. The structure of hybrid transmission can make the engine always work in the high efficiency range, improving fuel economy. At the same time, the addition of dual motors enables it to cooperate with the engine to provide strong torque output in parallel mode, improving the power of the whole vehicle.

[0048] There are three valve bodies in the hybrid transmission, namely the main oil circuit solenoid valve, clutch solenoid valve, and shift solenoid valve. The main oil circuit solenoid valve is responsible for establishing the overall pressure and plays a vital role. During long-term use, the wear of the transmission movement components will cause oil contamination, which will affect the control quality of the main oil circuit pressure solenoid valve and may even cause the solenoid valve to get stuck, seriously affecting driving safety. Therefore, it is particularly important to flush the main oil circuit solenoid valve to prevent the solenoid valve from getting stuck.

[0049] Currently, a single flushing mode is generally used for flushing the clutch solenoid valve, but this single flushing mode is prone to cause the problem of poor flushing effect.

[0050] Based on the above problems, the present application designs a flushing method, electronic device and readable storage medium for a main oil circuit solenoid valve. First, the driving state of the vehicle is obtained. Then, the present solution adopts different flushing strategies to flush the main oil circuit solenoid valve when the vehicle is in different driving states. Different flushing strategies use different flushing current values, so that the flushing of the main oil circuit solenoid valve will not affect the driving state of the vehicle. A flushing strategy that is more suitable for the current driving state is adopted to flush the main oil circuit solenoid valve, thereby improving the flushing effect of the main oil circuit solenoid valve under different driving states of the vehicle.

[0051] Based on the above ideas, the present application first provides a method for flushing the main oil circuit solenoid valve, which can be applied to a computing device, which can specifically be a vehicle controller, a vehicle control chip, a tram control platform, etc. Figure 1 As shown, the method can be implemented by the following methods, including:

[0052] Step S100: Acquire the vehicle driving status.

[0053] Step S110: Determine the current flushing strategy of the main oil circuit solenoid valve according to the clutch state parameter, the driving gear parameter and the driving mode parameter.

[0054] Step S120: flushing the main oil circuit solenoid valve of the vehicle according to the current flushing strategy.

[0055] The above-mentioned vehicles represent the current hybrid electric vehicles, which are vehicles whose vehicle drive system is composed of two or more single drive systems that can operate simultaneously. Flushing refers to the current flushing of the solenoid valve in the vehicle transmission, which flushes the solenoid valve from the viscosity of the transmission oil, the tension of the oil film in the oil cavity and impurities that cause the solenoid valve to become stuck.

[0056] There are three valve bodies in the hybrid transmission, namely the main oil circuit solenoid valve, clutch solenoid valve, and shift solenoid valve. The main oil circuit solenoid valve is responsible for establishing the overall pressure. This solution mainly focuses on the flushing control process of the main oil circuit solenoid valve in the hybrid transmission.

[0057] In the above embodiment, when the hybrid vehicle is driving, the present solution may first obtain the vehicle driving state, which may include a clutch state parameter, a driving gear parameter and a driving mode parameter, wherein the clutch state parameter indicates whether the clutch is currently in a disengaged state or an engaged state, the driving gear parameter indicates the gear in which the vehicle is currently driving, for example, neutral, 1st gear, 2nd gear, etc., and the driving mode parameter indicates the current driving mode of the vehicle, for example, a series driving mode and a parallel driving mode, wherein the series driving mode indicates a driving mode in which the vehicle's engine generates electricity and the vehicle's motor is responsible for driving; the parallel driving mode indicates a driving mode in which the vehicle's generator and motor are jointly driven.

[0058] When the vehicle driving state is obtained in the above manner, the present solution can determine the current flushing strategy of the main oil circuit solenoid valve according to the clutch state parameter, the driving gear parameter and the driving mode parameter. The current flushing strategy may include a series flushing strategy and a parallel flushing strategy, and the flushing current values ​​used by the main oil circuit solenoid valve in the series flushing strategy and the parallel flushing strategy are different.

[0059] When the current flushing strategy of the main oil circuit solenoid valve is determined in the above manner, this solution flushes the main oil circuit solenoid valve according to the current flushing strategy, thereby cleaning the main oil circuit solenoid valve.

[0060] The flushing method of the main oil circuit solenoid valve designed above, this scheme first obtains the driving state of the vehicle, and then this scheme adopts different flushing strategies to flush the main oil circuit solenoid valve when the vehicle is in different driving states. Different flushing strategies use different flushing current values, so that the flushing of the main oil circuit solenoid valve will not affect the driving state of the vehicle. A flushing strategy that is more suitable for the current driving state is adopted to flush the main oil circuit solenoid valve, thereby improving the flushing effect of the main oil circuit solenoid valve under different driving states of the vehicle.

[0061] As described above, the present solution can determine the current flushing strategy according to the clutch state parameter, the driving gear parameter and the driving mode parameter. As a possible implementation method, Figure 2 As shown, this scheme can determine the current flushing strategy in the following ways, including:

[0062] Step S200: If it is determined that the clutch state parameter is a disengaged state, the driving gear parameter is a first target gear, and the driving mode is a series driving mode, then the current flushing strategy of the main oil circuit solenoid valve is determined to be a series flushing strategy.

[0063] In the above embodiment, the first target gear can specifically be neutral, that is, if this scheme determines that the clutch is in a disengaged state, the driving gear is neutral and the driving mode is a series driving mode, this scheme adopts a series flushing strategy to flush the main oil circuit solenoid valve.

[0064] Specifically, Figure 2 As shown, this scheme can be flushed by adopting a series flushing strategy in the following ways:

[0065] Step S210: flushing the main oil circuit solenoid valve with a first flushing current value.

[0066] Step S220: When the flushing operation time reaches the first time, flushing the main oil circuit solenoid valve with a second flushing current value.

[0067] Step S230: When the flushing operation time reaches the second time, the main oil circuit solenoid valve is flushed again using the first flushing current value.

[0068] In the above embodiment, the first flushing current value is smaller than the second flushing current value, and the first flushing current value is smaller than the current request value of the main oil circuit solenoid valve in the engine and motor parallel mode; the second flushing current value is the maximum flushing current of the main oil circuit solenoid valve. The first flushing current value includes any flushing current value from 0mA to 30mA, and the second flushing current value includes 1500mA.

[0069] As a possible example, assuming that the first time is 0.1 seconds, the second time is 1.1 seconds, the first flushing current value is 0mA, and the second flushing current value is 1500mA, the above implementation mode may be specifically as follows: when the vehicle is traveling in series driving mode, the main oil circuit solenoid valve is flushed with a low current of 0mA; when the running time reaches 0.1s, this solution uses a large current of 1500mA to flush the main oil circuit solenoid valve; when the running time reaches 1.1s, this solution uses a low current of 0mA to flush the main oil circuit solenoid valve again.

[0070] It should be noted here that this scheme can set the flushing operation time, that is, the flushing process will automatically stop when the flushing operation time is reached. Assuming that the flushing time is 2s, when the operation time reaches 1.1s, this scheme uses a low current of 0mA to flush the main oil circuit solenoid valve again until the flushing time reaches 2s and stops.

[0071] In addition, during the flushing process, the scheme can also determine the status of the clutch solenoid valve and the main oil circuit solenoid valve. If the clutch solenoid valve or the main oil circuit solenoid valve fails, the scheme ends the flushing process. For example, the main oil circuit solenoid valve is flushed with a low current of 0mA. When the running time reaches 0.1s, the scheme flushes the main oil circuit solenoid valve with a high current of 1500mA. However, when the flushing time reaches 1s, the scheme detects that the clutch solenoid valve or the main oil circuit solenoid valve fails, and the scheme stops the flushing process.

[0072] In the above implementation mode, when the clutch of the vehicle is in a disengaged state and the vehicle is in a series driving mode, that is, a driving mode in which the engine generates electricity and the motor is responsible for driving, this scheme first flushes the main oil circuit solenoid valve with a small current, then flushes it with the maximum flushing current value that the main oil circuit solenoid valve can withstand, and finally flushes the main oil circuit solenoid valve with a small current, thereby improving the flushing effect of the main oil circuit solenoid valve by switching between small current and large current.

[0073] As another possible implementation, Figure 3 As shown, this scheme can determine the current flushing strategy in the following ways, including:

[0074] Step S300: If it is determined that the clutch state parameter is the engaged state, the driving gear parameter is the second target gear, and the driving mode is the parallel driving mode, then the current flushing strategy of the main oil circuit solenoid valve is determined to be the parallel flushing strategy.

[0075] In the above embodiment, the second target gear can specifically be the first gear of the vehicle or the second gear of the vehicle. That is, if this scheme determines that the clutch is in the engaged state, the gear is the first gear or the second gear, and the driving mode is the parallel driving mode, this scheme adopts a parallel flushing strategy to flush the main oil circuit solenoid valve.

[0076] In the above case, for step S120, the present solution can implement the parallel flushing strategy in the following manner, including:

[0077] Step S310: flushing the main oil circuit solenoid valve with a third flushing current value.

[0078] Step S320: When the flushing operation time reaches the third time, flushing the main oil circuit solenoid valve with a fourth flushing current value.

[0079] Step S330: When the flushing operation time reaches the fourth time, flushing the main oil circuit solenoid valve with the third flushing current value.

[0080] In the above embodiment, the third flushing current value is smaller than the fourth flushing current value.

[0081] Among them, since the vehicle is in a parallel driving mode, in this parallel driving mode, the engine and the motor are in parallel and driven together, and the engine and the motor need to be in parallel and the clutch is in an engaged state, and the clutch being in an engaged state requires the main oil circuit solenoid valve pressure to be at a certain level, and the main oil circuit solenoid valve pressure to be at a certain level requires the main oil circuit solenoid valve to have a certain current request value, and the current request value is the third flushing current value, that is, the third flushing current value is the current request value of the main oil circuit solenoid valve in the engine and motor parallel mode; the fourth flushing current value is the maximum flushing current of the main oil circuit solenoid valve, for example, the fourth flushing current value may include 1500mA.

[0082] As a possible example, assuming that the first time is 0.1 seconds, the second time is 1.1 seconds, and the fourth flushing current value is 1500mA, the above implementation method may be specifically that when the vehicle is traveling in parallel driving mode, the main oil circuit solenoid valve is flushed with the third flushing current value, and when the running time reaches 0.1s, this scheme uses a large current of 1500mA to flush the main oil circuit solenoid valve, and when the running time reaches 1.1s, this scheme uses the third flushing current value to flush the main oil circuit solenoid valve again.

[0083] It should be noted here that, in the process of executing the parallel flushing strategy, the flushing operation time can also be set in this scheme, that is, the flushing process automatically stops when the flushing operation time is reached. Assuming that the flushing time is 2s, when the operation time reaches 1.1s, this scheme uses the third flushing current to flush the main oil circuit solenoid valve again until the flushing time reaches 2s and stops.

[0084] In addition, this scheme can also determine the status of the clutch solenoid valve and the main oil circuit solenoid valve during the execution of the parallel flushing strategy. If the clutch solenoid valve or the main oil circuit solenoid valve fails, this scheme ends the flushing process. For example, the main oil circuit solenoid valve is flushed with the third flushing current. When the running time reaches 0.1s, this scheme flushes the main oil circuit solenoid valve with a large current of 1500mA. However, when the flushing time reaches 1s, this scheme detects that the clutch solenoid valve or the main oil circuit solenoid valve is faulty, and this scheme stops the flushing process.

[0085] In the above implementation mode, when the clutch of the vehicle is in the engaged state and the vehicle is in the parallel driving mode, that is, the driving mode driven by the engine and the motor together, the scheme first flushes the main oil circuit solenoid valve by using the current request value of the main oil circuit solenoid valve in the engine and motor parallel mode, and then flushes it by using the maximum flushing current value (the fourth flushing current value) that the main oil circuit solenoid valve can withstand, and finally flushes the main oil circuit solenoid valve by using the current request value of the main oil circuit solenoid valve in the engine and motor parallel mode. Since the scheme flushes the main oil circuit solenoid valve by using the current request value of the main oil circuit solenoid valve in the engine and motor parallel mode, the third flushing current value used will not affect the parallel driving model currently in which the vehicle is in, that is, the flow change of the main oil circuit solenoid valve will not affect the action of the clutch solenoid valve and the shift valve body; in addition, the scheme uses the maximum flushing current value (the fourth flushing current value) that the main oil circuit solenoid valve can withstand for flushing, which can improve the flushing effect of the main oil circuit solenoid valve.

[0086] In an optional implementation of this embodiment, if Figure 4 As shown, before obtaining the driving state of the vehicle, the solution can also determine whether the vehicle meets the flushing enabling condition, which may specifically include:

[0087] Step S400: Obtaining vehicle operating parameter information.

[0088] Step S410: Determine whether the vehicle meets the flushing enabling condition based on the vehicle's operating parameter information. If yes, go to step S100.

[0089] In the above-mentioned embodiment, the operating parameter information of the vehicle may include the current mileage information of the vehicle, the main oil circuit solenoid valve information and the clutch solenoid valve information, wherein the current mileage information of the vehicle indicates the mileage traveled after the vehicle is started, the main oil circuit solenoid valve information indicates whether there is fault information of the main oil circuit solenoid valve, for example, whether there is jamming, leakage, disengagement and other faults in the main oil circuit solenoid valve, and the clutch solenoid valve information indicates whether the clutch solenoid valve has flushing enable.

[0090] In the above situation, for step S410, this scheme can specifically determine whether the vehicle meets the flushing enable condition in the following manner: first, this scheme determines whether the main oil circuit solenoid valve is faulty based on the main oil circuit solenoid valve information; if it is determined that the main oil circuit solenoid valve is not faulty, then determine whether the clutch solenoid valve is flush-enabled based on the clutch solenoid valve information; if it is determined that the clutch solenoid valve is not flush-enabled, then determine whether the current mileage information reaches the preset mileage; if it is determined that the current mileage information reaches the preset mileage, then determine that the vehicle meets the flushing enable condition.

[0091] In the above implementation, if it is determined that the main oil circuit solenoid valve is not faulty, the clutch solenoid valve is not flush enabled, and the current mileage reaches the preset mileage, then the vehicle is determined to meet the flush enabling condition. The preset mileage can be adaptively adjusted according to actual conditions, for example, the preset mileage can be 50 kilometers, 60 kilometers, etc.

[0092] In the above implementation mode, before flushing the main oil circuit solenoid valve, this scheme determines whether the vehicle meets the flushing enable conditions based on the vehicle's operating parameter information, and only flushes the main oil circuit solenoid valve when the vehicle meets the flushing enable conditions, thereby improving the reliability of flushing the main oil circuit solenoid valve.

[0093] Figure 5 The present application provides a schematic structural block diagram of a flushing device for a main oil circuit solenoid valve. It should be understood that the device is applied to the electronic equipment described above. Figures 1 to 4 The method embodiment executed in corresponds to the method embodiment, and the steps involved in the aforementioned method can be executed. The specific functions of the device can be referred to the description above. To avoid repetition, the detailed description is appropriately omitted here. The device includes at least one software function module that can be stored in a memory in the form of software or firmware or solidified in the operating system (OS) of the device. Specifically, the device includes: an acquisition module 500, a determination module 510 and a flushing module 520, the acquisition module 500 is used to acquire the vehicle driving state; wherein the vehicle driving state includes clutch state parameters, driving gear parameters and driving mode parameters; the determination module 510 is used to determine the current flushing strategy of the main oil circuit solenoid valve according to the clutch state parameters, driving gear parameters and driving mode parameters; wherein the flushing strategy includes a series flushing strategy and a parallel flushing strategy, and the flushing current values ​​used by the main oil circuit solenoid valve in the series flushing strategy and the parallel flushing strategy are different; the flushing module 520 is used to flush the main oil circuit solenoid valve of the vehicle according to the current flushing strategy.

[0094] The flushing device of the main oil circuit solenoid valve designed above, this scheme first obtains the driving state of the vehicle, and then this scheme adopts different flushing strategies to flush the main oil circuit solenoid valve when the vehicle is in different driving states. Different flushing strategies use different flushing current values, so that the flushing of the main oil circuit solenoid valve will not affect the driving state of the vehicle. A flushing strategy that is more suitable for the current driving state is adopted to flush the main oil circuit solenoid valve, thereby improving the flushing effect of the main oil circuit solenoid valve under different driving states of the vehicle.

[0095] According to some embodiments of the present application, the determination module 510 is specifically used to determine that the current flushing strategy of the main oil circuit solenoid valve is a series flushing strategy if the clutch state parameter is determined to be a disengaged state, the driving gear parameter is the first target gear, and the driving mode is a series driving mode.

[0096] According to some embodiments of the present application, the flushing module 520 is specifically used to control the main oil circuit solenoid valve to use a first flushing current value for flushing; when the flushing operation time reaches a first time, the main oil circuit solenoid valve is controlled to use a second flushing current value for flushing; when the flushing operation time reaches a second time, the main oil circuit solenoid valve is controlled to use the first flushing current value for flushing; wherein, the first flushing current value is less than the second flushing current value, and the first flushing current value is less than the current request value of the main oil circuit solenoid valve in the parallel mode of the engine and the motor; the second flushing current value is the maximum flushing current of the main oil circuit solenoid valve.

[0097] According to some embodiments of the present application, the determination module 510 is also specifically used to determine that the current flushing strategy of the main oil circuit solenoid valve is a parallel flushing strategy if the clutch state parameter is determined to be an engaged state, the driving gear parameter is the second target gear, and the driving mode is a parallel driving mode.

[0098] According to some embodiments of the present application, the flushing module 520 is also specifically used to control the main oil circuit solenoid valve to use a third flushing current value for flushing; when the flushing operation time reaches the third time, the main oil circuit solenoid valve is controlled to use a fourth flushing current value for flushing; when the flushing operation time reaches the fourth time, the main oil circuit solenoid valve is controlled to use the third flushing current value for flushing; wherein, the third flushing current value is less than the fourth flushing current value, the third flushing current value is the current request value of the main oil circuit solenoid valve in the parallel mode of the engine and the motor; the fourth flushing current value is the maximum flushing current of the main oil circuit solenoid valve.

[0099] According to some embodiments of the present application, the acquisition module 500 is also used to acquire the operating parameter information of the vehicle; the determination module 510 is also used to determine whether the vehicle meets the flushing enable condition based on the operating parameter information of the vehicle; the device also includes an execution module 530, which is used to execute the step of acquiring the driving status of the vehicle when the determination module determines that the flushing enable condition is met.

[0100] According to some embodiments of the present application, the operating parameter information of the vehicle includes current mileage information, main oil circuit solenoid valve information and clutch solenoid valve information; the determination module 510 is also specifically used to determine whether the main oil circuit solenoid valve is faulty according to the main oil circuit solenoid valve information; if it is determined that the main oil circuit solenoid valve is not faulty, then determine whether the clutch solenoid valve is flush-enabled according to the clutch solenoid valve information; if it is determined that the clutch is not flush-enabled, then determine whether the current mileage information reaches the preset mileage; if it is determined that the current mileage information reaches the preset mileage, then determine that the vehicle meets the flush-enabled conditions.

[0101] According to some embodiments of the present application, Figure 6 As shown, the present application provides an electronic device 6, including: a processor 601 and a memory 602, the processor 601 and the memory 602 are interconnected and communicate with each other through a communication bus 603 and / or other forms of connection mechanisms (not marked), the memory 602 stores a computer program executable by the processor 601, and when the computing device is running, the processor 601 executes the computer program to execute any optional implementation method, such as steps S100 to S130: obtaining the vehicle driving state; determining the current flushing strategy of the main oil circuit solenoid valve according to the clutch state parameters, the driving gear parameters and the driving mode parameters; flushing the main oil circuit solenoid valve of the vehicle according to the current flushing strategy.

[0102] The present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method in any of the aforementioned optional implementations is executed.

[0103] Among them, the storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable red-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, disk or optical disk.

[0104] The present application provides a computer program product. When the computer program product is run on a computer, the computer is enabled to execute the method in any optional implementation manner.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A method for flushing a main oil circuit solenoid valve, characterized in that: The method comprises: Acquiring a vehicle driving state; wherein the vehicle driving state includes a clutch state parameter, a driving gear parameter, and a driving mode parameter; Determine the current flushing strategy of the main oil circuit solenoid valve according to the clutch state parameter, the driving gear parameter and the driving mode parameter; wherein the flushing strategy includes a series flushing strategy and a parallel flushing strategy, and the flushing current values ​​used by the main oil circuit solenoid valve in the series flushing strategy and the parallel flushing strategy are different; According to the current flushing strategy, the main oil circuit solenoid valve of the vehicle is flushed.

2. The method according to claim 1, characterized in that Determining the current flushing strategy of the main oil circuit solenoid valve according to the clutch state parameter, the driving gear parameter and the driving mode parameter includes: If it is determined that the clutch state parameter is a disengaged state, the driving gear parameter is a first target gear, and the driving mode is a series driving mode, then the current flushing strategy of the main oil circuit solenoid valve is determined to be a series flushing strategy.

3. The method according to claim 2, characterized in that Flushing the main oil circuit solenoid valve of the vehicle according to the current flushing strategy includes: The main oil circuit solenoid valve is flushed with a first flushing current value; When the flushing operation time reaches the first time, the main oil circuit solenoid valve is flushed with a second flushing current value; When the flushing operation time reaches a second time, flushing the main oil circuit solenoid valve with the first flushing current value; Among them, the first flushing current value is smaller than the second flushing current value, and the first flushing current value is smaller than the current request value of the main oil circuit solenoid valve in the parallel mode of the engine and the motor; the second flushing current value is the maximum flushing current of the main oil circuit solenoid valve.

4. The method according to claim 3, characterized in that: in, The first flush current value includes any flush current value from 0 mA to 30 mA, and the second flush current value includes 1500 mA.

5. The method according to claim 1, characterized in that Determining the current flushing strategy of the main oil circuit solenoid valve according to the clutch state parameter, the driving gear parameter and the driving mode parameter includes: If it is determined that the clutch state parameter is the engaged state, the driving gear parameter is the second target gear, and the driving mode is the parallel driving mode, then the current flushing strategy of the main oil circuit solenoid valve is determined to be the parallel flushing strategy.

6. The method according to claim 5, characterized in that Flushing the main oil circuit solenoid valve of the vehicle according to the current flushing strategy includes: The main oil circuit solenoid valve is flushed with the third flushing current value; When the flushing operation time reaches the third time, the main oil circuit solenoid valve is flushed with a fourth flushing current value; When the flushing operation time reaches a fourth time, flushing the main oil circuit solenoid valve with the third flushing current value; Among them, the third flushing current value is smaller than the fourth flushing current value, the third flushing current value is the current request value of the main oil circuit solenoid valve in the engine and motor parallel mode; the fourth flushing current value is the maximum flushing current of the main oil circuit solenoid valve.

7. The method according to claim 1, characterized in that Before obtaining the vehicle driving status, the method further includes: Obtaining vehicle operating parameter information; Determining whether the vehicle meets the flushing enabling condition according to the operating parameter information of the vehicle; If it is determined that the flushing enabling condition is satisfied, the step of acquiring the vehicle driving state is executed.

8. The method according to claim 7, characterized in that in, The vehicle operating parameter information includes current mileage information, main oil circuit solenoid valve information, and clutch solenoid valve information; The determining, based on the operating parameter information of the vehicle, whether the vehicle meets the flushing enabling condition includes: Determine whether the main oil circuit solenoid valve is faulty based on the main oil circuit solenoid valve information; If it is determined that there is no fault in the main oil circuit solenoid valve, then determine whether the clutch solenoid valve is flush enabled based on the clutch solenoid valve information; If it is determined that the clutch solenoid valve is not flush enabled, then it is determined whether the current mileage information reaches the preset mileage; If it is determined that the current mileage information reaches the preset mileage, it is determined that the vehicle meets the flushing enabling condition.

9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the method according to any one of claims 1 to 8 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 8 is implemented.

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