Electromagnetic valve protection method and device, electronic equipment and computer storage medium

Abstract

The invention relates to an electromagnetic valve protection method and device, electronic equipment and a computer storage medium, and belongs to the technical field of electromagnetic valves.The electromagnetic valve protection method comprises the steps that when an electromagnetic valve is in an activated state, the real-time voltage and the real-time load current of the electromagnetic valve are obtained; the duration of the solenoid valve in the activated state is obtained, and the heat accumulation value of the solenoid valve in the duration is calculated based on the duration, the real-time voltage and the real-time load current; and when the heat accumulation value is larger than a preset heat accumulation threshold value, the electromagnetic valve is controlled to exit the activated state. The heat accumulation of the electromagnetic valve is calculated through the voltage, the current and the activation duration of the electromagnetic valve, over-temperature protection can be carried out on the electromagnetic valve without directly measuring the temperature of the electromagnetic valve, and the electromagnetic valve is prevented from being damaged due to long-time electrification.

Description

Technical Field

[0001] The present invention relates to the technical field of solenoid valves, and in particular to a solenoid valve protection method, device, electronic equipment and computer storage medium. Background Art

[0002] With the continuous development of automobile technology, the industry has higher and higher requirements on the performance and service life of automobile parts. Many automobile parts need to undergo a lot of testing at the beginning of design.

[0003] As an important component of the vehicle, the vehicle automatic transmission needs to undergo a large number of tests, including hardware-in-the-loop tests. Many tests require that the vehicle automatic transmission be powered on for a long time. The solenoid valve in the vehicle automatic transmission will generate heat when powered on, causing the temperature of the solenoid valve to rise. If the solenoid valve generates too much heat, it will cause damage to the solenoid valve. In most test scenarios, the temperature of the solenoid valve cannot be accurately measured. When testing the automatic transmission, the operator will ignore the problem of heat accumulation in the solenoid valve, which will eventually cause damage to the solenoid valve.

[0004] It can be seen that in the prior art, when testing a vehicle automatic transmission, there may be a technical problem that the solenoid valve is powered on for a long time, causing damage to the solenoid valve. Summary of the invention

[0005] In view of this, it is necessary to provide a solenoid valve protection method, device, electronic device and computer storage medium to solve the technical problem in the prior art that when testing a vehicle automatic transmission, the solenoid valve may be powered on for a long time, causing damage to the solenoid valve.

[0006] In order to solve the above problems, the present invention provides a solenoid valve protection method, comprising: When the solenoid valve is in an activated state, the real-time voltage and the real-time load current of the solenoid valve are obtained; Acquire the duration of the solenoid valve being in the activation state, and calculate the accumulated heat value of the solenoid valve within the duration based on the duration, the real-time voltage, and the real-time load current; When the heat accumulation value is greater than a preset heat accumulation threshold, the solenoid valve is controlled to exit the activation state.

[0007] In a possible implementation manner, the calculating the accumulated heat value of the solenoid valve within the duration based on the duration, the real-time voltage, and the real-time load current includes: Acquire the interval duration of collecting the real-time voltage and the real-time load current; During the duration, the product of the real-time voltage, the real-time load current and the interval duration is accumulated to obtain a heat accumulation value of the solenoid valve during the duration.

[0008] In a possible implementation, the calculation process of the preset heat accumulation threshold includes: Obtaining the ambient temperature of the environment in which the solenoid valve is located, the mass and specific heat capacity of the solenoid valve, and the maximum tolerable temperature of the solenoid valve; Calculating the maximum tolerable temperature difference of the solenoid valve based on the ambient temperature and the maximum tolerable temperature; The product of the mass, the specific heat capacity and the maximum tolerable temperature difference is used as the heat accumulation threshold.

[0009] In a possible implementation manner, after controlling the solenoid valve to exit the activation state, the method further includes: Within a preset time period after the solenoid valve exits the activated state, the solenoid valve is prohibited from re-entering the activated state.

[0010] In a possible implementation manner, the process of determining the preset duration includes: Calculating a cooling time for the solenoid valve to cool to the ambient temperature based on the ambient temperature and the heat dissipation performance of the solenoid valve; The preset duration is determined based on the cooling duration, wherein the preset duration is greater than or equal to the cooling duration.

[0011] In a possible implementation manner, after controlling the solenoid valve to exit the activation state, the method further includes: The real-time temperature of the solenoid valve is obtained, and when the real-time temperature is greater than a preset temperature threshold, the solenoid valve is prohibited from entering an activation state again, and the preset temperature threshold is set based on the ambient temperature.

[0012] In a possible implementation manner, controlling the solenoid valve to exit the activation state includes: Disconnect the power supply of the solenoid valve or disconnect the valve of the solenoid valve.

[0013] The present invention also provides a solenoid valve protection device, comprising: A voltage and current acquisition module, used to acquire the real-time voltage and real-time load current of the solenoid valve when the solenoid valve is in an activated state; a heat calculation module, used for obtaining the duration of the solenoid valve being in the activation state, and calculating the accumulated heat value of the solenoid valve within the duration based on the duration, the real-time voltage and the real-time load current; The solenoid valve control module is used to control the solenoid valve to exit the activation state when the heat accumulation value is greater than a preset heat accumulation threshold.

[0014] The present invention also provides an electronic device, comprising a memory and a processor, wherein: The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps in the solenoid valve protection method described in any one of the above embodiments.

[0015] The present invention also provides a computer-readable storage medium for storing a computer-readable program or instruction, which, when executed by a processor, can implement the steps in the solenoid valve protection method described in any of the above embodiments.

[0016] The beneficial effects of the present invention are as follows: the solenoid valve protection method provided by the present invention obtains the real-time voltage and real-time load current of the solenoid valve when the solenoid valve is powered on, and obtains the duration of the solenoid valve being in an activated state, and based on the duration, real-time voltage and real-time load current, performs cumulative calculation of the heat generated by the solenoid valve when it is in an activated state, and when the cumulative value of the heat generated by the solenoid valve is greater than a preset heat cumulative threshold, controls the solenoid valve to exit the activated state. By calculating the heat accumulation of the solenoid valve through the voltage, current and activation duration of the solenoid valve, the solenoid valve can be protected from over-temperature without directly measuring the temperature of the solenoid valve, thereby preventing the solenoid valve from being damaged due to long-term power-on. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] FIG1 is a schematic flow chart of a solenoid valve protection method provided by an embodiment of the present invention; Figure 2 It is a flowchart of a method for calculating a heat accumulation value provided by an embodiment of the present invention; Figure 3 It is a flowchart of a method for calculating a heat accumulation threshold value provided by an embodiment of the present invention; Figure 4 It is a flowchart of a method for calculating a preset duration provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a solenoid valve protection device provided by an embodiment of the present invention; Figure 6A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0020] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places 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.

[0021] A specific embodiment of the present invention, as Figure 1 As shown, a solenoid valve protection method is disclosed, comprising: S101, when the solenoid valve is in an activated state, obtaining a real-time voltage and a real-time load current of the solenoid valve; S102, obtaining the duration of the solenoid valve being in an activated state, and calculating the accumulated heat value of the solenoid valve during the duration based on the duration, the real-time voltage, and the real-time load current; S103, when the heat accumulation value is greater than a preset heat accumulation threshold, the solenoid valve is controlled to exit the activation state.

[0022] In an embodiment of the present invention, a solenoid valve is an electronic component that performs switching operations by turning power on and off, and is widely used in vehicle parts, such as a solenoid valve in an automatic transmission. Usually, when testing the automatic transmission, it is necessary to ensure that the solenoid valve is activated for a long time. However, the temperature change of the solenoid valve cannot be effectively measured in the test environment, which may cause the solenoid valve to be damaged due to excessive activation time. Based on this, the present invention provides a solenoid valve protection method for preventing the solenoid valve from being damaged due to excessive activation time.

[0023] In the embodiment of the present invention, the solenoid valve is in an activated state, which means that the solenoid valve is powered on and used. At this time, there will be voltage at both ends of the solenoid valve, and there will be load current in the solenoid coil of the solenoid valve. The real-time voltage and real-time load current of the solenoid valve in the activated state can be collected by a pre-set voltage acquisition device and a current acquisition device, and the duration of the solenoid valve in the activated state can be recorded. The energized part of the solenoid valve is the solenoid coil, which is a pure resistance device. The cumulative heat generated by the resistance device can be calculated by multiplying the voltage by the current and then by the time. Therefore, the cumulative heat value of the solenoid valve in the activated state can be calculated by the duration of the solenoid valve in the activated state, the real-time voltage and the real-time load current. When the cumulative heat value is greater than the preset cumulative heat threshold, the solenoid valve is controlled to exit the activated state to ensure the safety of the solenoid valve.

[0024] The solenoid valve protection method provided by the present invention obtains the real-time voltage and real-time load current of the solenoid valve when the solenoid valve is powered on, and obtains the duration of the solenoid valve being in an activated state, and based on the duration, real-time voltage and real-time load current, performs cumulative calculation of the heat generated by the solenoid valve when it is in an activated state, and when the cumulative value of the heat generated by the solenoid valve is greater than a preset heat cumulative threshold, controls the solenoid valve to exit the activated state. By calculating the cumulative heat of the solenoid valve through the voltage, current and activation duration of the solenoid valve, the solenoid valve can be protected from over-temperature without directly measuring the temperature of the solenoid valve, thereby preventing the solenoid valve from being damaged due to long-term power-on.

[0025] As a possible implementation mode of the present invention, in this implementation mode, Figure 2 As shown, the accumulated heat value of the solenoid valve during the duration is calculated based on the duration, real-time voltage, and real-time load current, including: S201, obtaining the interval length for collecting the real-time voltage and the real-time load current; S202, within the duration, accumulating the product of the real-time voltage, the real-time load current and the interval duration to obtain a heat accumulation value of the solenoid valve within the duration.

[0026] In an embodiment of the present invention, when obtaining the real-time voltage and real-time current when the solenoid valve is in an activated state, because the voltage and current of the solenoid valve may change, it is necessary to collect the real-time voltage and real-time load current of the solenoid valve at a certain interval, such as 0.01 seconds, 0.02 seconds, etc. When calculating the cumulative heat value, the real-time voltage and real-time load current collected each time are multiplied by the interval time, and the cumulative heat value corresponding to the real-time voltage and real-time current collected this time can be obtained. Based on this, the product of the real-time voltage, the real-time load current and the interval time can be accumulated within the duration of the solenoid valve being in the activated state to obtain the cumulative heat value of the solenoid valve within the duration of the activation state.

[0027] The embodiment of the present invention sets the interval time for collecting the real-time voltage and the real-time load current, and accumulates the product of the real-time voltage, the real-time load current and the interval time during the continuous time when the solenoid valve is in the activated state, so as to obtain the heat accumulation value of the solenoid valve during the continuous time, thereby ensuring the accuracy of the calculation of the heat accumulation value.

[0028] As a possible implementation mode of the present invention, in this implementation mode, Figure 3 As shown, the calculation process of the preset heat accumulation threshold includes: S301, obtaining the ambient temperature of the environment in which the solenoid valve is located, the mass and specific heat capacity of the solenoid valve, and the maximum tolerable temperature of the solenoid valve; S302, calculating the maximum tolerable temperature difference of the solenoid valve based on the ambient temperature and the maximum tolerable temperature; S303: The product of the mass, the specific heat capacity and the maximum tolerable temperature difference is used as a heat accumulation threshold.

[0029] In the embodiment of the present invention, the heat accumulation threshold can be determined in combination with the characteristics of the solenoid valve. Specifically, the mass of the solenoid coil in the solenoid valve is obtained. m and specific heat capacity c , and the ambient temperature of the scene where the solenoid valve is located, and the maximum temperature that the solenoid valve can withstand is calculated based on the maximum temperature and the ambient temperature to calculate the maximum temperature difference between the solenoid valve and the ambient temperature , and then use formula (1) to calculate the heat accumulation threshold Q: (1) In an embodiment of the present invention, the heat accumulation threshold is calculated by the characteristics of the solenoid valve itself and is set mainly based on the maximum temperature that the solenoid valve can withstand, to ensure that the temperature of the solenoid valve is not too high and to prevent damage to the solenoid valve. In a possible embodiment, the heat accumulation threshold is 2400 joules.

[0030] As a possible implementation manner of the present invention, in this implementation manner, after the solenoid valve is controlled to exit the activation state, the method further includes: Within a preset time period after the solenoid valve exits the activation state, the solenoid valve is prohibited from entering the activation state again.

[0031] In an embodiment of the present invention, after the solenoid valve exits the activated state, in order to prevent the solenoid valve from entering the activated state again before it has completely cooled down and causing damage to the solenoid valve due to excessive heat accumulation, it is necessary to prohibit the solenoid valve from entering the activated state within a preset time period, such as 300 seconds, 400 seconds, 600 seconds, etc.

[0032] Further, such as Figure 4 As shown, the process of determining the preset duration includes: S401, calculating the cooling time for the solenoid valve to cool to the ambient temperature based on the ambient temperature and the heat dissipation performance of the solenoid valve; S402: Determine a preset duration based on the cooling duration, wherein the preset duration is greater than or equal to the cooling duration.

[0033] In the embodiment of the present invention, the preset time is set to ensure that the solenoid valve is cooled for a sufficient time. Therefore, when determining the preset time, the cooling time required for the solenoid valve to cool to the ambient temperature can be calculated based on the ambient temperature of the environment in which the solenoid valve is located and the heat dissipation performance of the solenoid valve, and the preset time is determined based on the cooling time, wherein the preset time should be greater than or equal to the cooling time. For example, if the cooling time required for the solenoid valve to cool to the ambient temperature is 300 seconds, then the preset time is at least 300 seconds, and can also be 400 seconds, 600 seconds, or a longer time.

[0034] Furthermore, after controlling the solenoid valve to exit the activation state, the method further includes: Get the real-time temperature of the solenoid valve. When the real-time temperature is greater than the preset temperature threshold, the solenoid valve is prohibited from entering the activation state again. The preset temperature threshold is set based on the ambient temperature.

[0035] In an embodiment of the present invention, the setting of the preset time is essentially to ensure that the solenoid valve is sufficiently cooled. Therefore, the real-time temperature of the solenoid valve can be directly obtained, such as using an infrared thermometer to measure the real-time temperature of the solenoid valve. When the real-time temperature is greater than the preset temperature threshold, the solenoid valve is prohibited from entering the activation state again, wherein the preset temperature threshold should be less than or equal to the ambient temperature of the environment in which the solenoid valve is located.

[0036] The embodiment of the present invention sets a preset time or a preset temperature threshold after the solenoid valve is in the activated state for a long time and exits the activated state, prohibiting the solenoid valve from entering the activated state again, thereby ensuring that the solenoid valve will not be damaged due to long-term activation.

[0037] As a possible implementation manner of the present invention, in this implementation manner, controlling the solenoid valve to exit the activation state includes: Disconnect the power supply to the solenoid valve or disconnect the valve of the solenoid valve.

[0038] In an embodiment of the present invention, the method of controlling the solenoid valve to exit the activated state can be to short-circuit the power supply of the solenoid valve. If the solenoid valve is a solenoid valve in an automatic transmission, the power of the solenoid valve can be cut off by controlling the automatic transmission controller; the effect of disconnecting the power supply of the solenoid valve can also be achieved by disconnecting the valve of the solenoid valve.

[0039] In order to better implement the solenoid valve protection method in the embodiment of the present invention, based on the solenoid valve protection method, correspondingly, Figure 5 As shown, the embodiment of the present invention further provides a solenoid valve protection device, and the solenoid valve protection device 500 includes: The voltage and current acquisition module 501 is used to acquire the real-time voltage and real-time load current of the solenoid valve when the solenoid valve is in an activated state; The heat calculation module 502 is used to obtain the duration of the solenoid valve being in an activated state, and calculate the accumulated heat value of the solenoid valve during the duration based on the duration, the real-time voltage and the real-time load current; The solenoid valve control module 503 is used to control the solenoid valve to exit the activation state when the heat accumulation value is greater than a preset heat accumulation threshold.

[0040] The solenoid valve protection device 500 provided in the above embodiment can implement the technical solution described in the above solenoid valve protection method embodiment. The specific implementation principles of the above modules or units can refer to the corresponding contents in the above solenoid valve protection method embodiment, which will not be repeated here.

[0041] The solenoid valve protection device provided by the present invention obtains the real-time voltage and real-time load current of the solenoid valve when the solenoid valve is powered on, and obtains the duration of the solenoid valve being in an activated state, and based on the duration, real-time voltage and real-time load current, performs cumulative calculation of the heat generated by the solenoid valve when it is in an activated state, and when the cumulative value of the heat generated by the solenoid valve is greater than a preset heat cumulative threshold, controls the solenoid valve to exit the activated state. By calculating the heat accumulation of the solenoid valve through the voltage, current and activation duration of the solenoid valve, the solenoid valve can be protected from over-temperature without directly measuring the temperature of the solenoid valve, thereby preventing the solenoid valve from being damaged due to long-term power-on.

[0042] like Figure 6 As shown, the present invention also provides an electronic device 600. The electronic device 600 includes a processor 601, a memory 602 and a display 603. Figure 6 Only some components of the electronic device 600 are shown, but it should be understood that it is not required to implement all of the components shown, and more or fewer components may be implemented instead.

[0043] In some embodiments, the processor 601 may be a central processing unit (CPU), a microprocessor or other data processing chip, and is used to run program codes or process data stored in the memory 602, such as the solenoid valve protection method of the present invention.

[0044] In some embodiments, the processor 601 may be a single server or a server group. The server group may be centralized or distributed. In some embodiments, the processor 601 may be local or remote. In some embodiments, the processor 601 may be implemented in a cloud platform. In some embodiments, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-cloud, etc., or any combination thereof.

[0045] In some embodiments, the memory 602 may be an internal storage unit of the electronic device 600, such as a hard disk or memory of the electronic device 600. In other embodiments, the memory 602 may also be an external storage device of the electronic device 600, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., equipped on the electronic device 600.

[0046] Furthermore, the memory 602 may include both an internal storage unit of the electronic device 600 and an external storage device. The memory 602 is used to store application software installed in the electronic device 600 and various data.

[0047] In some embodiments, the display 603 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, etc. The display 603 is used to display information of the electronic device 600 and to display a visual user interface. The components 601-603 of the electronic device 600 communicate with each other through a system bus.

[0048] In some embodiments, when the processor 601 executes the solenoid valve protection program in the memory 602, the following steps may be implemented: When the solenoid valve is in an activated state, the real-time voltage and the real-time load current of the solenoid valve are obtained; Obtain the duration of the solenoid valve being in an activated state, and calculate the accumulated heat value of the solenoid valve during the duration based on the duration, the real-time voltage, and the real-time load current; When the heat accumulation value is greater than the preset heat accumulation threshold, the solenoid valve is controlled to exit the activation state.

[0049] It should be understood that: when the processor 601 executes the solenoid valve protection program in the memory 602, in addition to the above functions, other functions can also be implemented. For details, please refer to the description of the corresponding method embodiment above.

[0050] Furthermore, the embodiment of the present invention does not specifically limit the type of the electronic device 600 mentioned, and the electronic device 600 may be a portable electronic device such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, etc. Exemplary embodiments of portable electronic devices include but are not limited to portable electronic devices equipped with IOS, Android, Microsoft or other operating systems. The above-mentioned portable electronic devices may also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (e.g., a touch panel). It should also be understood that in some other embodiments of the present invention, the electronic device 600 may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (e.g., a touch panel).

[0051] Correspondingly, an embodiment of the present invention also provides a computer-readable storage medium, which is used to store computer-readable programs or instructions. When the program or instructions are executed by a processor, the steps or functions of the solenoid valve protection method provided in the above-mentioned method embodiments can be implemented.

[0052] Those skilled in the art can understand that all or part of the processes of the above-mentioned embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, wherein the computer-readable storage medium is a disk, an optical disk, a read-only storage memory, or a random access memory, etc.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A solenoid valve protection method, characterized in that: include: When the solenoid valve is in an activated state, the real-time voltage and the real-time load current of the solenoid valve are obtained; Acquire the duration of the solenoid valve being in the activation state, and calculate the accumulated heat value of the solenoid valve within the duration based on the duration, the real-time voltage, and the real-time load current; When the heat accumulation value is greater than a preset heat accumulation threshold, the solenoid valve is controlled to exit the activation state.

2. The solenoid valve protection method according to claim 1, characterized in that: The calculating the accumulated heat value of the solenoid valve within the duration based on the duration, the real-time voltage and the real-time load current includes: Acquire the interval duration of collecting the real-time voltage and the real-time load current; During the duration, the product of the real-time voltage, the real-time load current and the interval duration is accumulated to obtain a heat accumulation value of the solenoid valve during the duration.

3. The solenoid valve protection method according to claim 1, characterized in that: The calculation process of the preset heat accumulation threshold includes: Obtaining the ambient temperature of the environment in which the solenoid valve is located, the mass and specific heat capacity of the solenoid valve, and the maximum tolerable temperature of the solenoid valve; Calculating the maximum tolerable temperature difference of the solenoid valve based on the ambient temperature and the maximum tolerable temperature; The product of the mass, the specific heat capacity and the maximum tolerable temperature difference is used as the heat accumulation threshold.

4. The solenoid valve protection method according to claim 3, characterized in that: After controlling the solenoid valve to exit the activation state, the method further includes: Within a preset time period after the solenoid valve exits the activated state, the solenoid valve is prohibited from re-entering the activated state.

5. The solenoid valve protection method according to claim 4, characterized in that: The process of determining the preset duration includes: Calculating a cooling time for the solenoid valve to cool to the ambient temperature based on the ambient temperature and the heat dissipation performance of the solenoid valve; The preset duration is determined based on the cooling duration, wherein the preset duration is greater than or equal to the cooling duration.

6. The solenoid valve protection method according to claim 3, characterized in that: After controlling the solenoid valve to exit the activation state, the method further includes: The real-time temperature of the solenoid valve is obtained, and when the real-time temperature is greater than a preset temperature threshold, the solenoid valve is prohibited from entering an activation state again, and the preset temperature threshold is set based on the ambient temperature.

7. The solenoid valve protection method according to claim 1, characterized in that: The controlling the solenoid valve to exit the activated state comprises: Disconnect the power supply of the solenoid valve or disconnect the valve of the solenoid valve.

8. A solenoid valve protection device, characterized in that: include: A voltage and current acquisition module, used to acquire the real-time voltage and real-time load current of the solenoid valve when the solenoid valve is in an activated state; a heat calculation module, used for obtaining the duration of the solenoid valve being in the activation state, and calculating the accumulated heat value of the solenoid valve within the duration based on the duration, the real-time voltage and the real-time load current; The solenoid valve control module is used to control the solenoid valve to exit the activation state when the heat accumulation value is greater than a preset heat accumulation threshold.

9. An electronic device, characterized in that: comprising a memory and a processor, wherein: The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps in the solenoid valve protection method described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: Used to store computer-readable programs or instructions, which, when executed by a processor, can implement the steps of the solenoid valve protection method described in any one of claims 1 to 7.

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