Electromagnetic anti-interference method and device for electronic water pump and medium

Abstract

The invention discloses an electromagnetic anti-interference method and device for an electronic water pump and a medium, and the method comprises the steps that the real-time state of the electronic water pump is determined, a state message is determined according to the real-time state, and the operation condition of the electronic water pump is displayed according to the state message; a stalling instruction is obtained, a preset delay mechanism is triggered according to the stalling instruction, delay stopping is conducted on the electronic water pump according to the delay mechanism, and the delay mechanism comprises delay time; and determining an abnormal state of the electronic water pump according to the state message, and cutting off a PWM line of the electronic water pump according to the abnormal state, so that the electronic water pump stops the abnormal state. The state of the electronic water pump can be mastered and displayed in real time; when a stalling instruction is encountered, delayed stopping can be achieved, and cooling is guaranteed; when abnormity is determined, the PWM line is cut off to quickly solve the problem, high temperature of a cooling element is avoided, maintenance cost is reduced, and system reliability and stability are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle control, in particular to an electromagnetic anti-interference method, device and medium for an electronic water pump. BACKGROUND

[0002] With the development of new energy vehicles towards intelligence, the degree of electrification of vehicles is increasing, and the electromagnetic interference problem is becoming more and more prominent, gradually becoming a major difficulty in the design of new energy vehicles. Taking the electronic water pump in the integrated thermal management vehicle as an example, if it is subject to electromagnetic interference, it will cause the flow of the pump to decrease or even stop. This situation will further cause a series of serious consequences, such as causing the temperature of the electric control, motor and battery to be too high, and ultimately making the vehicle unable to travel normally; for liquid-cooled vehicles, it will also cause frosting or icing of the air conditioning circuit, affecting the service life of the air conditioning parts. In addition, the installation position of the pump in different vehicles, whether the used wire harness is a shielded wire, and the anti-interference ability of the pump itself are different, and these factors will cause the degree of electromagnetic interference of the pump to be different. More troublesome is that when the pump is subject to electromagnetic interference, it often cannot feedback its actual running state, which brings great difficulty to the actual troubleshooting work. SUMMARY

[0003] In order to solve the above problems, the present application provides an electromagnetic anti-interference method for an electronic water pump, comprising: determining the real-time state of the electronic water pump, determining the state message according to the real-time state, and displaying the running condition of the electronic water pump according to the state message; obtaining a stop instruction, triggering a pre-set delay mechanism according to the stop instruction, and stopping the electronic water pump according to the delay mechanism, the delay mechanism comprising a delay time; determining the abnormal state of the electronic water pump according to the state message, cutting off the PWM line of the electronic water pump according to the abnormal state, so that the electronic water pump stops the abnormal state.

[0004] In one example, the real-time state of the electronic water pump is determined, and the state message is determined according to the real-time state, specifically comprising: real-time collection of the running parameters of the electronic water pump through the fault feedback pin inside the electronic water pump, the running parameters including the speed, current and voltage; comparing the running parameters with the pre-set normal running parameter range to determine the actual running state of the electronic water pump, the actual running state including normal operation, idling, stall, overvoltage and undervoltage; encoding the actual running state into a state message and issuing it through the fault feedback pin, so that an external controller receives and displays the running condition of the electronic water pump.

[0005] In one example, obtaining a stop command and triggering a pre-set delay mechanism based on the stop command specifically includes: receiving a stop command from an external controller, starting the internal timer of the electronic water pump to start timing according to the stop command, and triggering the pre-set delay mechanism, wherein the delay time in the delay mechanism is 20 minutes; during the delay time, the electronic water pump continues to run until the delay time ends, at which point the electronic water pump automatically stops running.

[0006] In one example, determining the abnormal state of the electronic water pump based on the status message and cutting off the PWM line of the electronic water pump according to the abnormal state specifically includes: receiving and parsing the status message from the electronic water pump through an external controller to determine whether the electronic water pump is in an abnormal state, the abnormal state including idling, stalling, overvoltage, undervoltage, and intermittent stoppage caused by electromagnetic interference; when it is determined that the electronic water pump is in an abnormal state, the external controller issues a command to cut off the PWM line, and cuts off the PWM control line of the electronic water pump according to the command to cut off the PWM line.

[0007] In one example, after disconnecting the PWM line of the electronic water pump, the method further includes: changing the electronic water pump to a preset full-speed operation mode, wherein the full-speed operation mode is configured such that the electronic water pump operates at a preset maximum speed when there is no PWM signal control.

[0008] In one example, the method further includes: analyzing and processing the collected operating parameters to determine the electromagnetic interference signal; and adjusting the signal filtering parameters according to the electromagnetic interference signal to maintain the operation of the electronic water pump in an electromagnetic interference environment.

[0009] In one example, the method further includes: if the external controller sends a start command during the operation of the delay mechanism, the electronic water pump stops the delay timing and starts operation.

[0010] In one example, the method further includes: recording event information triggered and interrupted by the delay mechanism through the electronic water pump, the event information including trigger time, interrupt time, and interruption reason, and uploading the event information to the external controller through the fault feedback pin.

[0011] On the other hand, this application also proposes an electromagnetic interference protection device for an electronic water pump, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the electromagnetic interference protection device for the electronic water pump to perform: the method described in any of the examples above.

[0012] On the other hand, this application also proposes a non-volatile computer storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to be the method described in any of the examples above.

[0013] This application enables timely monitoring of the water pump's status by determining its real-time status and generating status messages to display its operation. This facilitates rapid detection of potential problems and enhances operational monitoring capabilities. Upon receiving a stop command, a delay mechanism is triggered for a delayed stop. In the event of abnormal stoppage due to electromagnetic interference or other reasons, the water pump can continue running for a period of time, providing continuous cooling to the cooling components, preventing high-temperature damage, and ensuring vehicle safety. Identifying abnormal states based on status messages and disconnecting the PWM line can quickly stop the water pump's abnormal operation and prevent the fault from escalating. Furthermore, the water pump can run at full speed after the PWM line is disconnected, quickly resolving pump failure issues in emergencies, reducing maintenance time and costs, and effectively mitigating the adverse effects of electromagnetic interference on the electronic water pump and vehicle operation. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a flowchart illustrating an electromagnetic interference prevention method for an electronic water pump according to an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of an electromagnetic interference protection device for an electronic water pump according to an embodiment of this application. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] In new energy vehicles with integrated thermal management, the conventional control strategy for water pumps mainly relies on the temperature of cooling components such as the motor, electronic control system, and battery, combined with vehicle speed, to determine the pump's start and stop. Although some water pumps have fault feedback functions, reporting fault states such as idling, stalling, overvoltage, and undervoltage, most water pumps on the market still cannot report their actual operating status, meaning they cannot report whether the pump is running. This forces users to rely on sensing pump vibration or liquid flow to determine its operation. This problem is particularly pronounced during vehicle operation, as the inability to determine the pump's operating status in real time necessitates troubleshooting when cooling components overheat. Whether the pump is running during a fault becomes a significant challenge. Especially when the pump is subjected to electromagnetic interference, its intermittent operation further complicates the troubleshooting process.

[0019] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, in order to solve the above problems, this application provides an electromagnetic interference prevention method for an electronic water pump, the method comprising:

[0021] S101. Determine the real-time status of the electronic water pump, determine the status message based on the real-time status, and display the operating status of the electronic water pump based on the status message.

[0022] To determine the real-time status of an electric water pump, key operating parameters, such as speed, current, and voltage, are first collected in real time by sensors integrated within the pump. These real-time parameters are then compared and analyzed with preset normal operating parameter ranges to accurately determine the pump's actual operating status, including normal operation, no operation, idling, and stall. Based on the determination, a detailed status message is generated, containing information about whether the pump is actually running or not. This status message is sent to an external controller via a fault feedback pin. The external controller receives and parses the message, then displays the pump's operating status visually. This function adds real-time pump status feedback, facilitating rapid problem location and significantly saving troubleshooting time.

[0023] S102. Obtain a stop command and trigger a pre-set delay mechanism according to the stop command to delay and stop the electronic water pump according to the delay mechanism, wherein the delay mechanism includes a delay time.

[0024] When the electric water pump's control system receives a stop command, it does not immediately execute the stop operation. Instead, it triggers a pre-set delay mechanism within the electric water pump's internal program. The core of this delay mechanism is a preset delay time, set here to 20 minutes. Once triggered, the timer inside the electric water pump begins counting. During these 20 minutes, even if a stop command is received, the electric water pump continues to operate. The purpose of this design is to ensure that when the electric water pump shows signs of stopping due to electromagnetic interference, it can continue rotating for 20 minutes, providing continuous cooling to the components being cooled and preventing them from overheating due to pump stoppage. In this way, the actual impact of electromagnetic interference on customer use is effectively reduced, ensuring stable vehicle operation in electromagnetic interference environments.

[0025] S103. Determine the abnormal state of the electronic water pump based on the status message, and cut off the PWM line of the electronic water pump according to the abnormal state to stop the electronic water pump from the abnormal state.

[0026] The external controller receives and parses the status messages from the electric water pump. By comparing them with preset normal parameters, it accurately determines whether the electric water pump is in an abnormal state, such as idling, stalling, or intermittent stopping due to electromagnetic interference. When an abnormal state is determined and conventional troubleshooting cannot quickly resolve the issue, or when time is limited and in-depth investigation is not feasible, the electric water pump's PWM line is disconnected. Directly cutting the pump's PWM line activates the electric water pump's internal preset full-speed operation mode. At this time, as long as the vehicle is powered on at low voltage, the electric water pump is freed from abnormal interference and runs at maximum speed. This operation quickly provides sufficient cooling to the cooling components, preventing them from overheating due to pump malfunction, effectively preventing component damage caused by high temperatures, significantly saving repair time and costs, and ensuring the vehicle's basic operating functions.

[0027] In one embodiment, during the operation of the electric water pump, a real-time data acquisition channel is established using its internally integrated fault feedback pin to continuously acquire key operating parameters of the electric water pump, covering core indicators such as speed, current, and voltage. These real-time acquired operating parameters are transmitted to the intelligent analysis module inside the electric water pump, which pre-stores normal operating parameter ranges. By accurately comparing the real-time parameters with the preset range, the intelligent analysis module quickly determines the actual operating status of the electric water pump, specifically including normal operation, idling, stall, overvoltage, or undervoltage. After determination, the actual operating status is converted into a status message according to predetermined coding rules, which is concise and accurate. Finally, the status message is sent again to the external controller via the fault feedback pin. Upon receiving the message, the external controller immediately parses and intuitively displays the operating status of the electric water pump, providing real-time and accurate pump operating status information for the operator or maintenance personnel.

[0028] In one embodiment, when the communication interface of the electric water pump receives a stop command from an external controller, the command parsing module quickly decodes and verifies the command, confirming it as a legitimate command requiring the electric water pump to stop. Subsequently, the internal timer of the electric water pump immediately starts, beginning precise timing and simultaneously triggering a pre-set delay mechanism. This delay mechanism specifies a delay time of 20 minutes. During this period, the control circuit of the electric water pump maintains its original power supply, and the drive module continuously supplies power to the pump motor, ensuring the electric water pump continues to operate and provides continuous cooling capacity to the cooling system. Until the delay time ends, the timer sends a stop signal, the control circuit cuts off the motor power supply, and the electric water pump automatically stops operating. The entire process requires no manual intervention, achieving precise control.

[0029] In one embodiment, the external controller continuously receives status messages from the electric water pump via a communication interface. It then uses a built-in parsing algorithm to perform deep analysis of the messages, extracting key operating parameters and status information of the electric water pump. By comparing these with preset normal state ranges, it determines whether the electric water pump is in an abnormal state. These abnormal states include various scenarios such as idling, stalling, overvoltage, undervoltage, and intermittent shutdowns caused by electromagnetic interference. Once an abnormal state is determined, and it is assessed that this abnormal state may cause overheating of the cooling components, thereby threatening the normal driving safety of the vehicle, the external controller immediately activates an emergency handling mechanism. At this time, the external controller generates and issues a command to cut off the PWM line, which is quickly transmitted to the execution unit via the vehicle communication network. Upon receiving the command to cut off the PWM line, the execution unit, depending on the vehicle design, can choose to quickly cut off the PWM control line of the electric water pump through physical means, such as a mechanical switch, or electronic switches, such as relays or MOSFETs. After the cutoff, the control logic of the electric water pump changes, entering full-speed operation mode. In this mode, as long as the vehicle is powered by low voltage electricity, the electronic water pump will run at maximum speed without the need for PWM signal control, providing strong cooling capacity to the cooling system. This effectively prevents the cooling components from being damaged by high temperatures, while significantly reducing the cost and time consumed by complex troubleshooting and repair processes.

[0030] In one embodiment, during the delay mechanism's operation, the electronic water pump continuously listens for command signals sent by the external controller. If the external controller sends a start command again during this period, the electronic water pump's command parsing module quickly identifies the command type and immediately interrupts the ongoing delay timing process. Subsequently, the electronic water pump's control unit rapidly responds to the start command, reactivating the drive circuit and resuming the pump motor's operation. Simultaneously, the electronic water pump's built-in event logging module records detailed information about the delay mechanism's triggering and interruption, including trigger time, interruption time, and interruption reason. After recording, the electronic water pump uploads this event information in coded form to the external controller via a fault feedback pin for subsequent problem tracking and data analysis, providing data support for optimizing the pump control strategy.

[0031] like Figure 2 As shown in the figure, this application embodiment also provides an electromagnetic interference protection device for an electronic water pump, including:

[0032] At least one processor; and,

[0033] A memory that is communicatively connected to at least one processor; wherein,

[0034] The memory stores instructions that can be executed by at least one processor to enable an electromagnetic interference protection device for an electronic water pump to perform the method described in any of the above embodiments.

[0035] This application also provides a non-volatile computer storage medium storing computer-executable instructions, which are configured as described in any of the above embodiments.

[0036] In the 1990s, improvements to a technology could be clearly distinguished as either hardware improvements (e.g., improvements to the circuit structure of diodes, transistors, switches, etc.) or software improvements (improvements to the methodology). However, with technological advancements, many methodological improvements today can be considered direct improvements to the hardware circuit structure. Designers almost always obtain the corresponding hardware circuit structure by programming the improved methodology into the hardware circuit. Therefore, it cannot be said that a methodological improvement cannot be implemented using hardware physical modules. For example, a Programmable Logic Device (PLD) (such as a Field Programmable Gate Array (FPGA)) is such an integrated circuit whose logic function is determined by the user programming the device. Designers can program and "integrate" a digital system onto a PLD themselves, without needing chip manufacturers to design and manufacture dedicated integrated circuit chips. Furthermore, nowadays, instead of manually manufacturing integrated circuit chips, this programming is mostly implemented using "logic compiler" software. Similar to the software compiler used in program development, the original code before compilation must be written in a specific programming language, called a Hardware Description Language (HDL). There are many HDLs, such as ABEL (Advanced Boolean Expression Language), AHDL (Altera Hardware Description Language), Confluence, CUPL (Cornell University Programming Language), HDCal, JHDL (Java Hardware Description Language), Lava, Lola, MyHDL, PALASM, and RHDL (Ruby Hardware Description Language). Currently, the most commonly used are VHDL (Very-High-Speed ​​Integrated Circuit Hardware Description Language) and Verilog. Those skilled in the art should understand that by simply performing some logic programming on the method flow using one of these hardware description languages ​​and programming it into an integrated circuit, the hardware circuit implementing the logical method flow can be easily obtained.

[0037] The controller can be implemented in any suitable manner. For example, it can take the form of a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro)processor, logic gates, switches, application-specific integrated circuits (ASICs), programmable logic controllers, and embedded microcontrollers. Examples of controllers include, but are not limited to, the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20, and Silicon Labs C8051F320. A memory controller can also be implemented as part of the control logic of the memory. Those skilled in the art will also recognize that, in addition to implementing the controller in purely computer-readable program code form, the same functionality can be achieved by logically programming the method steps to make the controller take the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers. Therefore, such a controller can be considered a hardware component, and the means included therein for implementing various functions can also be considered as structures within the hardware component. Alternatively, the means for implementing various functions can be considered as both software modules implementing the method and structures within the hardware component.

[0038] The systems, devices, modules, or units described in the above embodiments can be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, a computer can be, for example, a personal computer, laptop computer, cellular phone, camera phone, smartphone, personal digital assistant, media player, navigation device, email device, game console, tablet computer, wearable device, or any combination of these devices.

[0039] For ease of description, the above devices are described in terms of function, divided into various units. Of course, in implementing this specification, the functions of each unit can be implemented in one or more software and / or hardware components.

[0040] The various embodiments in this application are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device and medium embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the description of the method embodiments.

[0041] The devices and media provided in this application are one-to-one with the methods. Therefore, the devices and media also have similar beneficial technical effects as their corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the devices and media will not be repeated here.

[0042] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0043] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0044] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0045] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0046] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0047] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0048] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0049] It should also be noted that 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 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 that element.

[0050] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An electromagnetic interference prevention method for an electronic water pump, characterized in that, include: The real-time status of the electronic water pump is determined, and a status message is determined based on the real-time status to display the operating status of the electronic water pump according to the status message. Obtain a stop command, and trigger a pre-set delay mechanism according to the stop command to stop the electronic water pump after a delay, wherein the delay mechanism includes a delay time; The abnormal state of the electronic water pump is determined based on the status message, and the PWM line of the electronic water pump is cut off according to the abnormal state to stop the electronic water pump from the abnormal state.

2. The method according to claim 1, characterized in that, Determine the real-time status of the electronic water pump, and determine the status message based on the real-time status, specifically including: The operating parameters of the electronic water pump are collected in real time through the fault feedback pin inside the electronic water pump. The operating parameters include speed, current and voltage. The actual operating status of the electronic water pump is determined by comparing the operating parameters with the preset normal operating parameter range. The actual operating status includes normal operation, idling, stall, overpressure, and underpressure. The actual operating status is encoded into a status message and sent through the fault feedback pin so that the external controller can receive and display the operating status of the electronic water pump.

3. The method according to claim 1, characterized in that, Obtain a stop command and trigger a pre-set delay mechanism based on the stop command, specifically including: Upon receiving a stop command from an external controller, the internal timer of the electronic water pump is started to run according to the stop command, and a pre-set delay mechanism is triggered, wherein the delay time in the delay mechanism is 20 minutes. During the delay period, the electronic water pump continues to operate until the delay period ends, at which point the electronic water pump automatically stops operating.

4. The method according to claim 1, characterized in that, The abnormal state of the electronic water pump is determined based on the status message, and the PWM line of the electronic water pump is cut off according to the abnormal state, specifically including: The status message from the electronic water pump is received and parsed by an external controller to determine whether the electronic water pump is in an abnormal state. The abnormal state includes idling, stalling, overvoltage, undervoltage, and intermittent stoppage caused by electromagnetic interference. When it is determined that the electronic water pump is in an abnormal state, the external controller issues a command to cut off the PWM line, and cuts off the PWM control line of the electronic water pump according to the command to cut off the PWM line.

5. The method according to claim 1, characterized in that, After disconnecting the PWM line of the electronic water pump, the method further includes: The electronic water pump is changed to a preset full-speed operation mode, which is configured so that the electronic water pump runs at a preset maximum speed when there is no PWM signal control.

6. The method according to claim 2, characterized in that, The method further includes: The collected operating parameters are analyzed and processed to determine the electromagnetic interference signals; The signal filtering parameters are adjusted according to the electromagnetic interference signal to maintain the operation of the electronic water pump in an electromagnetic interference environment.

7. The method according to claim 3, characterized in that, The method further includes: If the external controller sends a start command during the operation of the delay mechanism, the electronic water pump will stop the delay timer and start operation.

8. The method according to claim 2, characterized in that, The method further includes: The electronic water pump records event information triggered and interrupted by a delay mechanism. The event information includes the trigger time, interruption time, and interruption reason. The event information is then uploaded to the external controller via the fault feedback pin.

9. An electromagnetic interference protection device for an electronic water pump, characterized in that, include: At least one processor; as well as, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, which, when executed by the at least one processor, enable the electromagnetic interference protection device of the electronic water pump to perform the method described in any one of claims 1-8.

10. A non-volatile computer storage medium storing computer-executable instructions, characterized in that, The computer-executable instructions are configured to be the method as described in any one of claims 1-8.

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