Control method and device of vehicle gear shifting electromagnetic valve, vehicle and storage medium

Abstract

The present disclosure relates to the technical field of vehicles, and particularly relates to a control method and device of a vehicle gear shifting electromagnetic valve, a vehicle and a storage medium. The control method of the vehicle gear shifting electromagnetic valve comprises the following steps: monitoring an operation state of an engine after the vehicle is powered on; obtaining a working voltage of a gearbox controller when the engine is not running; and controlling the gear shifting electromagnetic valve to be closed when it is determined that the voltage preset condition is met based on the working voltage of the gearbox controller; wherein the gear shifting electromagnetic valve comprises a normally high electromagnetic valve. Through the technical scheme of the present disclosure, the problem that the normally high electromagnetic valve frequently moves due to the vehicle battery feeding when the engine is not running after the vehicle is powered on is solved, thereby being conducive to prolonging the service life of the normally high electromagnetic valve and improving the riding experience of the passengers.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and in particular to a control method, device, vehicle, and storage medium for a vehicle shift solenoid valve. Background Technology

[0002] Automatic transmission vehicles primarily shift gears by controlling the opening and closing of the clutch through a shift solenoid valve. The control strategy of the shift solenoid valve plays a crucial role in the software control of the automatic transmission.

[0003] In the prior art, when the vehicle engine is longitudinally mounted, the shift solenoid valve includes a constant-high solenoid valve. Under certain special circumstances, such as when the vehicle is powered on but the engine is not running, the unstable operating voltage of the transmission controller due to the vehicle battery depletion can easily cause the constant-high solenoid valve to operate frequently. Frequent operation of the constant-high solenoid valve affects its service life, and the frequent operation of the constant-high solenoid valve will make a "click-click-click" sound, thus affecting the riding experience of the passengers. Summary of the Invention

[0004] To solve the above-mentioned technical problems, or at least partially solve them, this disclosure provides a control method, device, vehicle, and storage medium for a vehicle shift solenoid valve. This solves the problem of frequent operation of the constant-high solenoid valve caused by battery depletion when the vehicle is powered on but the engine is not running, thereby helping to extend the service life of the constant-high solenoid valve and improve the riding experience of passengers.

[0005] In a first aspect, embodiments of this disclosure provide a method for controlling a vehicle shift solenoid valve, including:

[0006] Monitor the engine's operating status after the vehicle is powered on;

[0007] When the engine is not running, obtain the operating voltage of the transmission controller;

[0008] When the voltage preset condition is met based on the operating voltage of the transmission controller, the shift solenoid valve is controlled to close; wherein, the shift solenoid valve includes a constant-high solenoid valve.

[0009] In some embodiments, the voltage preset conditions include:

[0010] The operating voltage of the transmission controller is less than a first preset voltage threshold.

[0011] Wherein, the first preset voltage threshold is the minimum operating voltage of the transmission controller when it is in normal functional state.

[0012] In some embodiments, the control method for the vehicle shift solenoid valve further includes:

[0013] When the operating voltage of the transmission controller is greater than the second preset voltage threshold, the shift solenoid valve is opened; wherein the second preset voltage threshold is greater than the first preset voltage threshold.

[0014] In some embodiments, the control method for the vehicle shift solenoid valve further includes:

[0015] When the operating voltage of the transmission controller is greater than or equal to the first preset voltage threshold and less than or equal to the second preset voltage threshold, the shift solenoid valve is controlled to maintain the state it was in at the previous moment.

[0016] In some embodiments, controlling the closing of the shift solenoid valve includes:

[0017] Set the zero-value flag of the solenoid valve to a preset position so that the control current output to the shift solenoid valve is zeroed.

[0018] In some embodiments, before obtaining the operating voltage of the transmission controller, the control method for the vehicle shift solenoid valve further includes:

[0019] The engine is positioned longitudinally.

[0020] In some embodiments, determining the longitudinal orientation of the engine includes:

[0021] Obtain the preset calibration value;

[0022] The longitudinal placement of the engine is determined based on the preset calibration value.

[0023] Secondly, this disclosure also provides a control device for a vehicle shift solenoid valve, comprising:

[0024] The monitoring module is used to monitor the engine's operating status after the vehicle is powered on;

[0025] The operating voltage acquisition module is used to acquire the operating voltage of the transmission controller when the engine is not running;

[0026] The control module is used to control the shift solenoid valve to close when the voltage preset condition is met based on the operating voltage of the transmission controller; wherein the shift solenoid valve includes a constant-voltage solenoid valve.

[0027] Thirdly, embodiments of this disclosure also provide a vehicle, including a processor and a memory, wherein the processor executes the steps of the vehicle shift solenoid valve control method as described in the first aspect by calling a program or instruction stored in the memory.

[0028] Fourthly, embodiments of this disclosure also provide a computer-readable storage medium storing a program or instructions that cause a computer to perform the steps of the control method for a vehicle shift solenoid valve as described in the first aspect.

[0029] The vehicle shift solenoid valve control method provided in this disclosure includes monitoring the engine's operating status after the vehicle is powered on; acquiring the operating voltage of the transmission controller when the engine is not running; and controlling the shift solenoid valve to close when a voltage preset condition is met based on the transmission controller's operating voltage. The shift solenoid valve includes a constant-voltage solenoid valve. Therefore, by setting a voltage preset condition, acquiring the transmission controller's operating voltage after the vehicle is powered on but the engine is not running, and determining that the transmission controller's operating voltage meets the voltage preset condition, the shift solenoid valve can be controlled to remain closed. The constant-voltage solenoid valve solves the problem of unstable operating voltage of the transmission controller caused by battery depletion, leading to frequent switching between open and closed actions of the constant-voltage solenoid valve. This helps extend the service life of the high-voltage solenoid valve and improves the passenger experience. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0031] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic flowchart illustrating a control method for a vehicle shift solenoid valve provided in an embodiment of this disclosure;

[0033] Figure 2 This is a schematic diagram of the structure of a control device for a vehicle shift solenoid valve provided in an embodiment of the present disclosure;

[0034] Figure 3 This is a schematic diagram of the structure of a vehicle provided in an embodiment of the present disclosure. Detailed Implementation

[0035] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0036] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0037] In related technologies, an eight-speed automatic transmission in a vehicle is equipped with five shift solenoids: a first shift solenoid, a second shift solenoid, a third shift solenoid, a fourth shift solenoid, and a fifth shift solenoid. When the engine is mounted longitudinally, the first and second shift solenoids are normally low-voltage solenoids, while the third, fourth, and fifth shift solenoids are normally high-voltage solenoids. When the engine is mounted transversely, all of these solenoids are normally low-voltage solenoids. Specifically, when the control current of the normally low-voltage solenoid is 0mA, it is open, disengaging the clutch it controls; when the control current of the normally high-voltage solenoid is 0mA, it is closed, engaging the clutch it controls.

[0038] The vehicle engine is longitudinally mounted, and the shift solenoid valve includes a constant-high solenoid valve. When the vehicle is powered on but the engine is not running, the vehicle battery may deplete, causing the constant-high solenoid valve to switch between open and closed states. This results in frequent operation of the constant-high solenoid valve, which affects its service life. Furthermore, the frequent operation of the constant-high solenoid valve will produce a "click-click-click" sound, thus affecting the passenger's riding experience.

[0039] To address the technical problems existing in the aforementioned related technologies, this disclosure provides a control method for a vehicle shift solenoid valve. By setting a voltage preset condition, the operating voltage of the transmission controller is obtained when the vehicle is powered on but the engine is not running. When it is determined that the operating voltage of the transmission controller meets the voltage preset condition, the shift solenoid valve can be controlled to remain in a closed state. The shift solenoid valve includes a constant-voltage solenoid valve, which solves the problem of the constant-voltage solenoid valve frequently switching between open and closed actions due to battery depletion. This helps to extend the service life of the constant-voltage solenoid valve and improve the riding experience of passengers.

[0040] The following description, in conjunction with the accompanying drawings, provides an exemplary description of the control method, apparatus, vehicle, and storage medium for the vehicle shift solenoid valve provided in the embodiments of this disclosure.

[0041] Figure 1This is a flowchart illustrating a control method for a vehicle shift solenoid valve according to an embodiment of this disclosure. This method is applicable to application scenarios involving the control of a vehicle shift solenoid valve. This method can be executed by a control device for the vehicle shift solenoid valve provided in this embodiment, which can be implemented using software and / or hardware. Figure 1 As shown, the method includes the following steps:

[0042] S101. Monitor the engine's operating status after the vehicle is powered on.

[0043] Specifically, after the vehicle is ignited and powered on, the vehicle controller can monitor whether the engine is running when it is starting, and whether it is not running when it is not starting. Thus, the operating status of the engine after the vehicle is powered on can be monitored.

[0044] S102. When the engine is not running, obtain the operating voltage of the transmission controller.

[0045] Specifically, in conjunction with S101, after the vehicle is ignited and powered on, when the vehicle engine is not running, the vehicle controller can detect that the vehicle engine is not running, and further obtain the operating voltage of the transmission controller.

[0046] The transmission controller typically operates within a voltage range of 9V-16V when functioning normally. Within this range, all functions of the transmission controller operate normally. When the vehicle battery is depleted, the operating voltage of the transmission controller becomes unstable and falls below 9V, at which point the transmission controller enters an abnormal functional state.

[0047] For example, when the operating voltage of the transmission controller is greater than 6.5V but less than 9V, the shift solenoid valve is in an abnormal functional state, such as limited diagnostic functions of the transmission controller, but the transmission controller can still control the opening and closing of the shift solenoid valve. When the operating voltage of the transmission controller drops to 6.5V, reaching the minimum operating voltage of the transmission controller, the transmission controller no longer controls the shift solenoid valve, and the current of the shift solenoid valve becomes 0mA. At this time, the current of the constant high voltage solenoid valve also becomes 0mA, and the constant high voltage solenoid valve switches from the open state to the closed state. When the operating voltage of the transmission controller rises to 7V, the transmission controller resumes control of the shift solenoid valve, the current of the constant high voltage solenoid valve becomes 1000mA, and the constant high voltage solenoid valve switches from the closed state to the open state.

[0048] When the vehicle battery is depleted, the operating voltage of the transmission controller generally fluctuates within the range of 6V-8V, causing the constant high voltage solenoid valve to switch between open and closed states. This results in frequent operation of the constant high voltage solenoid valve, which affects its service life. Furthermore, the frequent operation of the constant high voltage solenoid valve will produce a "click-click-click" sound, thus affecting the passenger's riding experience.

[0049] Therefore, based on the obtained operating voltage of the transmission controller, a reasonable control strategy for the shift solenoid valve can be set to solve the aforementioned technical problems. The specific method for controlling the opening and closing of the shift solenoid valve will be detailed below.

[0050] S103. When the working voltage of the transmission controller is determined to meet the preset voltage condition, the shift solenoid valve is controlled to close; wherein, the shift solenoid valve includes a constant-high solenoid valve.

[0051] The voltage preset condition is used to determine whether the conditions for controlling the shift solenoid valve to close are met. When it is determined that the working voltage of the transmission controller meets the voltage preset condition, the shift solenoid valve is controlled to close.

[0052] Specifically, as mentioned above, when the vehicle battery is depleted, the constant-high solenoid valve is constantly switching between open and closed states. This frequent operation of the constant-high solenoid valve affects its lifespan and produces a clicking sound, impacting the passenger experience. Therefore, by setting a voltage preset condition, when the transmission controller's operating voltage meets the preset condition, the shift solenoid valve, including the constant-high solenoid valve, can be kept closed. This solves the problem of the constant-high solenoid valve constantly switching between open and closed states due to vehicle battery depletion, thus extending its lifespan and improving the passenger experience.

[0053] The vehicle shift solenoid valve control method provided in this disclosure includes monitoring the engine's operating status after the vehicle is powered on; acquiring the operating voltage of the transmission controller when the engine is not running; and controlling the shift solenoid valve to close when a voltage preset condition is met based on the transmission controller's operating voltage. The shift solenoid valve includes a constant-voltage solenoid valve. Therefore, by setting a voltage preset condition, acquiring the transmission controller's operating voltage after the vehicle is powered on but the engine is not running, and determining that the transmission controller's operating voltage meets the voltage preset condition, the shift solenoid valve can be controlled to remain closed. The constant-voltage solenoid valve solves the problem of frequent switching between open and closed actions caused by battery depletion, thus extending the lifespan of the constant-voltage solenoid valve and improving the passenger experience.

[0054] In some embodiments, the voltage preset conditions include:

[0055] The operating voltage of the transmission controller is less than the first preset voltage threshold.

[0056] The first preset voltage threshold is the minimum operating voltage of the transmission controller when it is in normal functional state. When the operating voltage of the transmission controller is lower than the first preset voltage threshold, the transmission controller is in an abnormal functional state. For example, when the operating voltage of the transmission controller fluctuates within the range of 6V-8V, the constant-voltage solenoid valve is in a switching state between open and closed, resulting in frequent operation of the constant-voltage solenoid valve.

[0057] Based on this, the voltage preset condition is set as follows: the operating voltage of the transmission controller is less than the first preset voltage threshold. Specifically, when the operating voltage of the transmission controller is obtained and it is determined that the operating voltage of the transmission controller is less than the first preset voltage threshold, the shift solenoid valve is controlled to close. This solves the problem that the high-voltage solenoid valve is in a switching state between open and closed due to the vehicle battery being depleted, thereby helping to extend the service life of the high-voltage solenoid valve and improve the riding experience of passengers.

[0058] In some embodiments, the control method for the vehicle shift solenoid valve further includes:

[0059] When the operating voltage of the transmission controller is greater than the second preset voltage threshold, the shift solenoid valve is opened; wherein the second preset voltage threshold is greater than the first preset voltage threshold.

[0060] Specifically, a second preset voltage threshold can be set, which is greater than the first preset voltage threshold. When the operating voltage of the transmission controller is greater than the second preset voltage threshold, the shift solenoid valve is opened.

[0061] By setting only a first preset voltage threshold, when the operating voltage of the transmission controller rises to, for example, the first preset voltage threshold, the constant-voltage solenoid valve switches from a closed state to an open state; when the operating voltage of the transmission controller falls back below the first preset voltage threshold, the constant-voltage solenoid valve switches from an open state to a closed state. However, by setting a second preset voltage threshold, when the operating voltage of the transmission controller is greater than the second preset voltage threshold, the constant-voltage solenoid valve is controlled to open, thus avoiding the aforementioned problem of the constant-voltage solenoid valve switching from a closed state to an open state and then back to a closed state when the operating voltage of the transmission controller rises to and falls back below the first preset voltage threshold.

[0062] In some embodiments, the control method for the vehicle shift solenoid valve further includes:

[0063] When the operating voltage of the transmission controller is greater than or equal to the first preset voltage threshold and less than or equal to the second preset voltage threshold, the shift solenoid valve is controlled to maintain the state it was in at the previous moment.

[0064] Specifically, in conjunction with the above embodiments, by setting a first preset voltage threshold and a second preset voltage threshold, when the operating voltage of the transmission controller rises to, for example, the first preset voltage threshold, the shift solenoid valve is controlled to maintain the state it was in at the previous moment. Therefore, the shift solenoid valve will not switch from the closed state to the open state, that is, the shift solenoid valve remains in the closed state. When the operating voltage of the transmission controller falls from the first preset voltage threshold to below the first preset voltage threshold, the constant high voltage solenoid valve is controlled to close. Thus, in the event of a voltage drop, the constant high voltage solenoid valve can be kept in one state, which can avoid frequent operation of the constant high voltage solenoid valve.

[0065] It should be noted that when the operating voltage of the transmission controller rises to a level greater than or equal to the first preset voltage threshold, the operating voltage of the transmission controller tends to stabilize. At this time, the voltage drop is small, and the second preset voltage threshold can be set based on the requirements of the vehicle shift solenoid valve control method provided in this embodiment.

[0066] For example, the first preset voltage threshold is the minimum operating voltage of the transmission controller when it is in normal functioning state, such as 9.0V, and the second preset voltage threshold can be set to 9.5V. Since the voltage drop is small, for example, when the operating voltage of the transmission controller rises from below 9.0V to 9.2V, the constant-high voltage solenoid valve maintains its previous state, so it remains closed. When the operating voltage of the transmission controller drops from 9.2V to 8.8V, based on the control strategy of this scheme, the constant-high voltage solenoid valve remains closed. Therefore, in the event of a voltage drop, the constant-high voltage solenoid valve can be kept in one state, which helps to improve the problem of frequent operation of the constant-high voltage solenoid valve during voltage drops. For another example, when the operating voltage of the transmission controller rises to 9.6V, based on the control strategy of this scheme, the constant-high voltage solenoid valve is opened. When the operating voltage of the transmission controller drops from 9.6V to 9.2V, the constant-high voltage solenoid valve maintains its previous state, and it remains open.

[0067] In some embodiments, controlling the closing of the shift solenoid valve includes:

[0068] Set the solenoid valve current value zeroing flag to the preset flag position to zero the control current output to the shift solenoid valve.

[0069] The solenoid valve current value zeroing flag is used to select the control current output to the shift solenoid valve. The solenoid valve current value zeroing flag includes a preset flag.

[0070] The preset flag is used to select that the control current output to the shift solenoid valve is zero. Specifically, when the solenoid valve current value zeroing flag is set to the preset flag, the control current output to the shift solenoid valve can be set to zero.

[0071] For example, the preset flag may be, for example, but not limited to, "1". When the zero flag of the solenoid valve current value is set to the preset flag, the control current output to the shift solenoid valve can be set to zero, thereby controlling the shift solenoid valve to close.

[0072] In some embodiments, the method for controlling the vehicle shift solenoid valve further includes, before obtaining the operating voltage of the transmission controller:

[0073] Determine that the engine should be placed longitudinally.

[0074] Specifically, as mentioned above, when the engine is placed longitudinally, the shift solenoid valves include a normally high solenoid valve. When the vehicle battery is depleted, the normally high solenoid valve is prone to switching between open and closed states, which can easily cause it to operate frequently. This frequent operation of the normally high solenoid valve affects its service life. When the engine is placed laterally, the shift solenoid valves are all normally low solenoid valves, and these valves do not exhibit frequent opening and closing movements.

[0075] Therefore, before performing the operation of obtaining the working voltage of the transmission controller, it is necessary to determine whether the engine is placed longitudinally. Only when it is determined that the engine is placed longitudinally and the vehicle battery is depleted will the constant high solenoid valve be frequently activated.

[0076] It should be noted that the engine can also be determined to be longitudinally positioned before monitoring the engine's operating status after the vehicle is powered on; however, this embodiment does not specifically limit this.

[0077] In some embodiments, determining the longitudinal orientation of the engine includes:

[0078] Obtain the preset calibration value;

[0079] The longitudinal placement of the engine is determined based on the preset calibration value.

[0080] Specifically, the preset calibration values ​​may include a first preset calibration value and a second preset calibration value; the first preset calibration value is used to determine that the vehicle engine is longitudinally positioned, and the second preset calibration value is used to determine that the vehicle engine is transversely positioned. Thus, when the preset calibration value is the first preset calibration value, it can be determined that the vehicle engine is longitudinally positioned.

[0081] Alternatively, a first preset calibration value is used to determine if the vehicle engine is placed laterally, and a second preset calibration value is used to determine if the vehicle engine is placed longitudinally. Therefore, when the preset calibration value is the second preset calibration value, it can be determined that the vehicle engine is placed longitudinally.

[0082] Based on the same inventive concept, this disclosure also provides a control device for a vehicle shift solenoid valve. Figure 2 This is a schematic diagram of the structure of a control device for a vehicle shift solenoid valve provided in an embodiment of this disclosure, as shown below. Figure 2 As shown, the device includes: a monitoring module 21 for monitoring the engine's operating status after the vehicle is powered on; a working voltage acquisition module 22 for acquiring the working voltage of the transmission controller when the engine is not running; and a control module 23 for controlling the shift solenoid valve to close when the voltage preset condition is met based on the working voltage of the transmission controller; wherein the shift solenoid valve includes a constant-high solenoid valve.

[0083] The control device for a vehicle shift solenoid valve provided in the above embodiments can execute the control method for the vehicle shift solenoid valve provided in the above embodiments, and has the same or corresponding beneficial effects, which will not be described in detail here.

[0084] This disclosure also provides a computer-readable storage medium storing a program or instructions that cause a computer to perform the steps of any of the vehicle shift solenoid valve control device methods provided in the above embodiments.

[0085] For example, a program or instructions cause a computer to perform a method for controlling a vehicle shift solenoid valve, the method comprising:

[0086] Monitor the engine's operating status after the vehicle is powered on;

[0087] When the engine is not running, obtain the operating voltage of the transmission controller;

[0088] When the working voltage of the transmission controller meets the preset voltage condition, the shift solenoid valve is closed; the shift solenoid valve includes a constant-voltage solenoid valve.

[0089] Based on the above description of the implementation methods, those skilled in the art will clearly understand that this disclosure can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of the various embodiments of this disclosure.

[0090] Based on the above embodiments, this disclosure also provides a vehicle, including a processor and a memory. The processor executes the steps of any of the above-described vehicle shift solenoid valve control methods by calling programs or instructions stored in the memory, thereby achieving the corresponding beneficial effects.

[0091] In some embodiments, Figure 3 This is a schematic diagram of the structure of a vehicle provided as an embodiment of this disclosure. Figure 3 As shown, the vehicle includes one or more processors 31 and memory 32.

[0092] The processor 31 may be a central processing unit (CPU) or other form of processing unit with data processing and / or instruction execution capabilities, and may control other components in the electronic device to perform desired functions.

[0093] The memory 32 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. Volatile memory may include, for example, random access memory (RAM) and / or cache memory. Non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 31 may execute the program instructions to implement the vehicle shift solenoid valve control method provided in the embodiments of this disclosure above, and / or other desired functions. Various contents such as input signals, signal components, and noise components may also be stored in the computer-readable storage medium.

[0094] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0095] The above are merely specific embodiments of this disclosure, enabling those skilled in the art to understand or implement this disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to these embodiments, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control method for a vehicle shift solenoid valve, characterized in that, include: Monitor the engine's operating status after the vehicle is powered on; When the engine is not running, obtain the operating voltage of the transmission controller; When the voltage preset condition is met based on the operating voltage of the transmission controller, the shift solenoid valve is controlled to close; wherein, the shift solenoid valve includes a constant-high voltage solenoid valve; the voltage preset condition includes: the operating voltage of the transmission controller is less than a first preset voltage threshold, the first preset voltage threshold being the minimum value of the operating voltage of the transmission controller when it is in normal functional state; When the operating voltage of the transmission controller is greater than the second preset voltage threshold, the shift solenoid valve is opened; wherein the second preset voltage threshold is greater than the first preset voltage threshold. When the operating voltage of the transmission controller is greater than or equal to the first preset voltage threshold and less than or equal to the second preset voltage threshold, the shift solenoid valve is controlled to maintain the state it was in at the previous moment. Before obtaining the operating voltage of the transmission controller, the following steps are also included: The engine is positioned longitudinally.

2. The control method for the vehicle shift solenoid valve according to claim 1, characterized in that, Controlling the closing of the shift solenoid valve includes: Set the zero-value flag of the solenoid valve to a preset position so that the control current output to the shift solenoid valve is zeroed.

3. The control method for the vehicle shift solenoid valve according to claim 1, characterized in that, Determining the longitudinal orientation of the engine includes: Obtain the preset calibration value; The longitudinal placement of the engine is determined based on the preset calibration value.

4. A control device for a vehicle shift solenoid valve, characterized in that, include: The monitoring module is used to monitor the operating status of the engine after the vehicle is powered on and to determine the longitudinal orientation of the engine. The operating voltage acquisition module is used to acquire the operating voltage of the transmission controller when the engine is not running; A control module is used to control the shift solenoid valve to close when a voltage preset condition is met based on the operating voltage of the transmission controller; wherein the shift solenoid valve includes a constant-high voltage solenoid valve; the voltage preset condition includes: the operating voltage of the transmission controller is less than a first preset voltage threshold, the first preset voltage threshold being the minimum value of the operating voltage of the transmission controller when it is in normal functional state; The control module is also used to control the shift solenoid valve to open when the operating voltage of the transmission controller is greater than the second preset voltage threshold; wherein the second preset voltage threshold is greater than the first preset voltage threshold; The control module is further used to control the shift solenoid valve to maintain the state it was in at the previous moment when the operating voltage of the transmission controller is greater than or equal to the first preset voltage threshold and less than or equal to the second preset voltage threshold.

5. A vehicle, characterized in that, It includes a processor and a memory, wherein the processor executes the steps of the vehicle shift solenoid valve control method as described in any one of claims 1-3 by calling a program or instruction stored in the memory.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a program or instructions that cause a computer to perform the steps of the control method for a vehicle shift solenoid valve as described in any one of claims 1-3.

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