An automobile electric water pump testing method and device, electronic equipment and storage medium

Abstract

The application relates to a kind of automobile electric water pump test methods, comprising: S110: set test environment temperature and test time;S120: start the water pump to be tested;S130: obtain water pump test running data;S140: when the test running data meets the preset condition, the water pump to be tested is qualified.Compared with the prior art, the automobile electric water pump test method provided by the application can control the medium temperature in the medium tank of the measured water pump through the medium temperature control system, and can also simulate the environment temperature under the actual working condition of the measured water pump through the temperature and humidity environment box, and is equipped with a CAN-LIN module and a signal generator, which can simulate the actual working condition of the automobile electric water pump, realize the performance test of the automobile electric water pump, and finally summarize the whole test process by computer.Therefore, compared with the existing test device, the universality, integration and simplicity are greatly increased.

Description

Technical Field

[0001] This application relates to the field of automotive testing, and more specifically, to a method, apparatus, electronic device, and storage medium for testing automotive electric water pumps. Background Technology

[0002] With the rapid development of China's economy and automotive industry, automotive thermal management technology, as an important component of the vehicle system, has become a highlight of competition among major automakers. The development of new energy vehicles, in particular, has made the vehicle thermal management system even more crucial. Electric water pumps, as a vital component of the automotive thermal management system, require a dedicated testing bench for various performance tests. Existing water pump testing benches are mainly suitable for high-flow, high-power water pumps, and not only are they unable to control the temperature of the medium and the ambient temperature, but they also cannot be used to test electric water pumps for automobiles. Summary of the Invention

[0003] To address the aforementioned technical problems, this application is proposed. Embodiments of this application provide a method for testing an automotive electric water pump, comprising:

[0004] S110: Set the test environment temperature and test time;

[0005] S120: Start the water pump to be tested;

[0006] S130: Obtain water pump test operation data;

[0007] S140: When the test operation data meets the preset conditions, the water pump under test is qualified.

[0008] Optionally, the test method for automotive electric water pumps also includes:

[0009] S111: Set the rotational speed of the water pump under test to the first rotational speed;

[0010] S112: Set the cooling medium temperature of the water pump under test;

[0011] S121: After starting the water pump under test, test the test operating voltage, test operating current and test operating efficiency at at least 6 flow points, and the test time for each flow point shall not be less than 10 seconds;

[0012] S131: Acquire the first test data when the test operating voltage, the test operating current, and the test operating efficiency change are less than or equal to 1%;

[0013] S132: Change the speed of the water pump under test to a second speed, and repeat the above steps.

[0014] Optionally, the test method for automotive electric water pumps also includes:

[0015] Set the cooling medium temperature of the water pump under test;

[0016] Set the operating current value and alarm current value of the water pump under test;

[0017] After starting the water pump under test, if the operating current value exceeds the alarm current value within the test time, the test is stopped and the stop time is recorded.

[0018] After the test is stopped, the ambient temperature is restored to normal.

[0019] Check the status of the water pump under test. When the status of the water pump under test meets the preset conditions, repeat steps 110 to 132 and obtain the current second test data of the water pump under test.

[0020] The water pump under test is qualified when the change between the second test data and the first test data meets the preset conditions.

[0021] Optionally, when the test operation data meets preset conditions, the water pump under test is considered qualified, including:

[0022] The determination of whether the water pump under test starts normally is based on the test operating voltage, test operating current, and test operating flow rate.

[0023] According to another aspect of this application, an automotive electric water pump testing device is also provided, comprising: a cooling medium temperature control system, a cooling medium tank, a first flow regulating valve, a first pump inlet pressure gauge, a first pump inlet temperature gauge, a first return control valve, a first flow meter, a first pump outlet pressure gauge, a first pump outlet temperature gauge, an environmental simulation chamber, a controller, a data acquisition system, and a computer.

[0024] The cooling medium temperature control system is connected to the cooling medium tank and the computer, and the computer controls the cooling medium temperature control system to adjust the temperature of the cooling medium in the cooling medium tank.

[0025] The outlet of the cooling medium tank is connected in sequence to the flow regulating valve, the first flow meter and the first return control valve. The flow regulating valve regulates the flow rate of the cooling medium, the first flow meter acquires the flow rate data of the cooling medium, and the first return control valve controls the return of the cooling medium.

[0026] The data acquisition system is connected to the first pre-pump temperature gauge, the first post-pump temperature gauge, the first pre-pump pressure gauge, the first post-pump pressure gauge, and the computer. The data acquisition system acquires the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value of the water pump under test, and sends the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value to the computer.

[0027] The controller is connected to the first return liquid control valve, the flow regulating valve, and the computer respectively; the computer controls the controller to control the first return liquid control valve and the flow regulating valve.

[0028] Optionally, the first flow regulating valve includes: a large flow valve and a small first flow regulating valve.

[0029] Optionally, the controller is a PLC.

[0030] Optionally, the automotive electric water pump testing device further includes: a second flow regulating valve, a second pre-pump pressure gauge, a second pre-pump temperature gauge, a second return control valve, a second flow meter, a second post-pump pressure gauge, and a second post-pump temperature gauge.

[0031] The outlet of the cooling medium tank is connected in sequence to the second flow regulating valve, the second flow meter and the second return control valve. The flow regulating valve regulates the flow rate of the cooling medium, the second flow meter acquires the flow rate data of the cooling medium, and the second return control valve controls the return of the cooling medium.

[0032] The data acquisition system is connected to the second pre-pump temperature gauge, the second post-pump temperature gauge, the second pre-pump pressure gauge, the second post-pump pressure gauge, and the computer. The data acquisition system acquires the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value of the water pump under test, and sends the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value to the computer.

[0033] The controller is connected to the second return liquid control valve, the flow regulating valve, and the computer respectively; the computer controls the controller to control the second return liquid control valve and the flow regulating valve.

[0034] According to another aspect of this application, an electronic device is provided, comprising: a processor; and a memory storing computer program instructions, which, when executed by the processor, cause the processor to perform the automotive electric water pump testing method as described above.

[0035] According to another aspect of this application, a computer-readable medium is provided having computer program instructions stored thereon, which, when executed by a processor, cause the processor to perform the automotive electric water pump testing method as described above.

[0036] Compared with existing technologies, the automotive electric water pump testing method provided in this application can control the temperature of the medium in the pump's medium tank through a medium temperature control system. It can also simulate the actual operating temperature of the pump using a temperature and humidity environment chamber, and is equipped with a CAN-LIN module and a signal generator to simulate the actual operating conditions of the automotive electric water pump, thus achieving performance testing of the pump. Finally, the entire test process is summarized and analyzed by a computer. Therefore, compared with existing testing devices, this invention greatly increases its universality, integration, and simplicity. Attached Figure Description

[0037] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objectives, and beneficial effects of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0038] Figure 1 This is a flowchart of a test method for an automotive electric water pump according to an embodiment of this application;

[0039] Figure 2 This is a schematic diagram of the structure of an automotive electric water pump testing device according to an embodiment of this application;

[0040] Figure 3 This is a block diagram of an electronic device according to an embodiment of this application. Detailed Implementation

[0041] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0042] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] The following are explanations of some technical terms used in this application:

[0045] PLC: Programmable Logic Controller, is a digital control system with a microprocessor used for automation control. It can load control instructions into memory for storage and execution. A programmable controller consists of functional units such as a CPU, instruction and data memory, input / output interfaces, power supply, and digital-to-analog converter.

[0046] Please refer to Figure 1 In one embodiment of this application, a method for testing an automotive electric water pump includes:

[0047] S110: Set the test environment temperature and test time;

[0048] S120: Start the water pump to be tested;

[0049] S130: Obtain water pump test operation data;

[0050] S140: When the test operation data meets the preset conditions, the water pump under test is qualified.

[0051] High and low temperature start-up test

[0052] This invention provides a high-temperature or low-temperature environment through a temperature and humidity chamber to drive a water pump for a water pump start-up test under high and low temperature conditions.

[0053] The steps are as follows:

[0054] a. Start the test bench and set the ambient temperature.

[0055] b. After the ambient temperature is reached, place the vehicle for at least 4 hours to simulate the actual vehicle in summer and winter environments.

[0056] c. Use the water pump drive module to start the water pump. The computer determines whether the start-up is normal based on the signals fed back from the current and voltage sensors and the flow meter.

[0057] In one embodiment of this application, the testing method for an automotive electric water pump further includes:

[0058] S111: Set the rotational speed of the water pump under test to the first rotational speed;

[0059] S112: Set the cooling medium temperature of the water pump under test;

[0060] S121: After starting the water pump under test, test the test operating voltage, test operating current and test operating efficiency at at least 6 flow points, and the test time for each flow point shall not be less than 10 seconds;

[0061] S131: Acquire the first test data when the test operating voltage, the test operating current, and the test operating efficiency change are less than or equal to 1%;

[0062] S132: Change the speed of the water pump under test to a second speed, and repeat the above steps.

[0063] Performance test

[0064] According to the test requirements, the flow regulating valve (large or small flow) is selected on the computer to adjust the water channel size. The water pump drive system drives the pump. At this time, the PLC automatically adjusts the return control valve to stabilize the flow based on the opening of the flow regulating valve. The measured pressure before and after the pump, as well as the current flow rate measured by the flow meter, are transmitted back to the computer. The computer automatically calculates the current pump head using a formula. Simultaneously, the voltage and current sensors measure the current voltage and current values ​​of the pump and transmit them back to the computer, which automatically calculates the current pump power. In automatic test mode, the computer can obtain different flow rate, voltage, and current values ​​by setting different speeds, and automatically calculates and plots the head and power curves.

[0065] The steps are as follows:

[0066] a. Start the test bench, select the head test, and set the electric water pump to run at different speeds (usually within the range of 25%, 50%, 75%, and 100% speed). The ambient temperature and the coolant temperature should be controlled at 23±2℃.

[0067] b. At each test speed, at least six flow points should be selected evenly for testing.

[0068] c. When measuring data, all instruments should be recorded after at least 10 seconds of testing and the change should not exceed 1%.

[0069] d. Measure the flow rate and head curves of the electric water pump at different speeds. Its performance targets should meet the requirements of the design task or drawings. At the same time, the output results need to depict the voltage, current, and corresponding efficiency curves.

[0070] In one embodiment of this application, the testing method for an automotive electric water pump further includes:

[0071] Set the cooling medium temperature of the water pump under test;

[0072] Set the operating current value and alarm current value of the water pump under test;

[0073] After starting the water pump under test, if the operating current value exceeds the alarm current value within the test time, the test is stopped and the stop time is recorded.

[0074] After the test is stopped, the ambient temperature is restored to normal.

[0075] Check the status of the water pump under test. When the status of the water pump under test meets the preset conditions, repeat steps 110 to 132 and obtain the current second test data of the water pump under test.

[0076] The water pump under test is qualified when the change between the second test data and the first test data meets the preset conditions.

[0077] Life test

[0078] The life test includes storage life test under different ambient temperatures, operation life test under different ambient temperatures, and operation life test under different medium temperatures. This invention controls the medium temperature and ambient temperature respectively through a medium temperature control system and a temperature and humidity environment chamber, and drives the water pump to conduct operation life or storage life test.

[0079] The steps are as follows:

[0080] a. Start the test bench and select the life test settings for medium temperature and ambient temperature. Set the water pump supply voltage and feedback current alarm value.

[0081] b. Start the electric water pump, set the life test time, and begin the test.

[0082] c. If the water pump operates without problems within the test time, it will automatically stop running after the test time ends. If it is damaged or has a problem during the test time, the feedback current or flow rate will trigger an alarm to stop the test and record the time.

[0083] d. After the life test, the high and low temperature environment chamber should be restored to room temperature and the water pump status should be visually inspected. If the water pump status is fine, a performance test should be conducted again to compare the performance curve before the life test and determine whether the test results are qualified.

[0084] Please refer to Figure 2 This application also provides a test device for an automotive electric water pump, including: a cooling medium temperature control system, a cooling medium tank, a first flow regulating valve, a first pump inlet pressure gauge, a first pump inlet temperature gauge, a first return control valve, a first flow meter, a first pump outlet pressure gauge, a first pump outlet temperature gauge, an environmental simulation chamber, a controller, a data acquisition system, and a computer.

[0085] The cooling medium temperature control system is connected to the cooling medium tank and the computer, and the computer controls the cooling medium temperature control system to adjust the temperature of the cooling medium in the cooling medium tank.

[0086] The outlet of the cooling medium tank is connected in sequence to the flow regulating valve, the first flow meter and the first return control valve. The flow regulating valve regulates the flow rate of the cooling medium, the first flow meter acquires the flow rate data of the cooling medium, and the first return control valve controls the return of the cooling medium.

[0087] The data acquisition system is connected to the first pre-pump temperature gauge, the first post-pump temperature gauge, the first pre-pump pressure gauge, the first post-pump pressure gauge, and the computer. The data acquisition system acquires the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value of the water pump under test, and sends the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value to the computer.

[0088] The controller is connected to the first return liquid control valve, the flow regulating valve, and the computer respectively; the computer controls the controller to control the first return liquid control valve and the flow regulating valve.

[0089] In one embodiment of this application, the first flow regulating valve includes: a large flow valve and a small first flow regulating valve.

[0090] In one embodiment of this application, the automotive electric water pump testing device further includes: a second flow regulating valve, a second pre-pump pressure gauge, a second pre-pump temperature gauge, a second return control valve, a second flow meter, a second post-pump pressure gauge, and a second post-pump temperature gauge.

[0091] The outlet of the cooling medium tank is connected in sequence to the second flow regulating valve, the second flow meter and the second return control valve. The flow regulating valve regulates the flow rate of the cooling medium, the second flow meter acquires the flow rate data of the cooling medium, and the second return control valve controls the return of the cooling medium.

[0092] The data acquisition system is connected to the second pre-pump temperature gauge, the second post-pump temperature gauge, the second pre-pump pressure gauge, the second post-pump pressure gauge, and the computer. The data acquisition system acquires the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value of the water pump under test, and sends the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value to the computer.

[0093] The controller is connected to the second return liquid control valve, the flow regulating valve, and the computer respectively; the computer controls the controller to control the second return liquid control valve and the flow regulating valve.

[0094] This invention includes performance testing of automotive electric water pumps, high and low temperature start-up testing, and water pump life testing.

[0095] This invention uses two flow regulating valves (one large and one small) and a return control valve to ensure a stable flow rate of the medium. A medium temperature control system regulates the temperature of the medium inside the insulated and sealed tank. Temperature and pressure sensors, one before and one after the pump, collect data on the medium pressure and temperature within the system to monitor its normal operation. The test principles for each experimental item are described below.

[0096] Exemplary electronic devices

[0097] Below, for reference Figure 3 This describes an electronic device according to embodiments of the present application.

[0098] Figure 3 A block diagram of an electronic device according to an embodiment of this application is illustrated.

[0099] like Figure 3 As shown, the electronic device 10 includes one or more processors 11 and memory 12.

[0100] The processor 11 may be a central processing unit (CPU) or other form of processing unit with data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device 10 to perform desired functions.

[0101] The memory 12 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. The volatile memory may include, for example, random access memory (RAM) and / or cache memory. The 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 11 may execute the program instructions to implement the functions and / or other desired functions in the automotive electric water pump testing methods of the various embodiments of this application described above. Various contents, such as target location feature vectors, may also be stored in the computer-readable storage medium.

[0102] In one example, the electronic device 10 may also include an input device 13 and an output device 14, which are interconnected via a bus system and / or other forms of connection mechanism (not shown).

[0103] The input device 13 may include, for example, a keyboard, a mouse, etc.

[0104] The output device 14 can output various information to the outside, including decoded values. The output device 14 may include, for example, a display, a speaker, a printer, and a communication network and its connected remote output devices, etc.

[0105] Of course, for the sake of simplicity, Figure 3 Only some of the components of the electronic device 10 relevant to this application are shown in this illustration; components such as buses, input / output interfaces, etc., are omitted. In addition, the electronic device 10 may include any other suitable components depending on the specific application.

[0106] Exemplary computer program products and computer-readable storage media

[0107] In addition to the methods and devices described above, embodiments of this application may also be computer program products, which include computer program instructions that, when executed by a processor, cause the processor to perform the steps of the functions in the automotive electric water pump testing methods according to various embodiments of this application described in the "Exemplary Methods" section of this specification.

[0108] The computer program product can be written in any combination of one or more programming languages ​​to perform the operations of the embodiments of this application. The programming languages ​​include object-oriented programming languages ​​such as Java and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0109] Furthermore, embodiments of this application may also be computer-readable storage media storing computer program instructions thereon, which, when executed by a processor, cause the processor to perform the steps of the automotive electric water pump testing method according to various embodiments of this application as described in the "Exemplary Methods" section above.

[0110] The computer-readable storage medium may be any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may, for example, include, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: electrical connections having one or more wires, portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0111] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0112] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0113] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0114] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0115] The above description has been given for illustrative and descriptive purposes. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A test method for an automotive electric water pump, characterized in that, include: S110: Set the test environment temperature and test time; S120: Start the water pump to be tested; S130: Obtain water pump test operation data; S140: When the test operation data meets the preset conditions, the water pump under test is qualified; S111: Set the rotational speed of the water pump under test to the first rotational speed; S112: Set the cooling medium temperature of the water pump under test; S121: After starting the water pump under test, test the test operating voltage, test operating current and test operating efficiency at at least 6 flow points, and the test time for each flow point shall not be less than 10 seconds; S131: Acquire the first test data when the test operating voltage, the test operating current, and the test operating efficiency change are less than or equal to 1%; S132: Change the speed of the water pump under test to a second speed, and repeat the above steps; The testing methods for automotive electric water pumps also include: Set the cooling medium temperature of the water pump under test; Set the operating current value and alarm current value of the water pump under test; After starting the water pump under test, if the operating current value exceeds the alarm current value within the test time, the test is stopped and the stop time is recorded. After the test is stopped, the ambient temperature is restored to normal. Check the status of the water pump under test. When the status of the water pump under test meets the preset conditions, repeat steps 110 to 132 and obtain the current second test data of the water pump under test. The water pump under test is qualified when the change between the second test data and the first test data meets the preset conditions.

2. The test method for an automotive electric water pump according to claim 1, characterized in that, When the test data meets the preset conditions, the water pump under test is considered qualified, including: The determination of whether the water pump under test starts normally is based on the test operating voltage, test operating current, and test operating flow rate.

3. A testing device for an automotive electric water pump, characterized in that, The apparatus is applicable to the method described in any one of claims 1-2; the apparatus comprises: a cooling medium temperature control system, a cooling medium tank, a first flow regulating valve, a first pre-pump pressure gauge, a first pre-pump temperature gauge, a first return control valve, a first flow meter, a first post-pump pressure gauge, a first post-pump temperature gauge, an environmental simulation chamber, a controller, a data acquisition system, and a computer; The cooling medium temperature control system is connected to the cooling medium tank and the computer, and the computer controls the cooling medium temperature control system to adjust the temperature of the cooling medium in the cooling medium tank. The outlet of the cooling medium tank is connected in sequence to the first flow regulating valve, the first flow meter and the first return control valve. The first flow regulating valve regulates the flow rate of the cooling medium, the first flow meter acquires the flow rate data of the cooling medium, and the first return control valve controls the return of the cooling medium. The data acquisition system is connected to the first pre-pump temperature gauge, the first post-pump temperature gauge, the first pre-pump pressure gauge, the first post-pump pressure gauge, and the computer. The data acquisition system acquires the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value of the water pump under test, and sends the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value to the computer. The controller is connected to the first return liquid control valve, the first flow regulating valve, and the computer respectively; the computer controls the controller to control the first return liquid control valve and the first flow regulating valve.

4. The automotive electric water pump testing device according to claim 3, characterized in that, The first flow regulating valve includes a large flow valve and a small flow regulating valve.

5. The automotive electric water pump testing device according to claim 4, characterized in that, The controller is a PLC.

6. The automotive electric water pump testing device according to claim 5, characterized in that, The automotive electric water pump testing device also includes: a second flow regulating valve, a second pump inlet pressure gauge, a second pump inlet temperature gauge, a second return control valve, a second flow meter, a second pump outlet pressure gauge, and a second pump outlet temperature gauge. The outlet of the cooling medium tank is connected in sequence to the second flow regulating valve, the second flow meter and the second return control valve. The second flow regulating valve regulates the flow rate of the cooling medium, the second flow meter acquires the flow rate data of the cooling medium, and the second return control valve controls the return of the cooling medium. The data acquisition system is connected to the second pre-pump temperature gauge, the second post-pump temperature gauge, the second pre-pump pressure gauge, the second post-pump pressure gauge, and the computer. The data acquisition system acquires the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value of the water pump under test, and sends the pre-pump temperature value, post-pump temperature value, pre-pump pressure value, and post-pump pressure value to the computer. The controller is connected to the second return liquid control valve, the second flow regulating valve, and the computer respectively; the computer controls the controller to control the second return liquid control valve and the second flow regulating valve.

7. A vehicle monitoring electronic device, comprising an external memory card, characterized in that, The electronic device includes the automotive electric water pump testing device as described in any one of claims 3-6.

8. A storage medium, characterized in that, It contains a computer program that, when executed by a processor, implements the method as described in any one of claims 1-2.

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