A detection system and detection method for a water pump controller

Abstract

The present invention discloses a detection system and a detection method for a water pump controller, which belongs to the field of water pump detection technology. The detection system of the water pump controller includes a high-temperature box, a low-temperature box, a first three-way joint, a first solenoid valve arranged between the first end of the first three-way joint and the liquid outlet of the high-temperature box, a second solenoid valve arranged between the second end of the first three-way joint and the liquid outlet of the low-temperature box, a second three-way joint, a third solenoid valve arranged between the first end of the second three-way joint and the liquid return port of the high-temperature box, a fourth solenoid valve arranged between the second end of the second three-way joint and the liquid return port of the low-temperature box, the third end of the second three-way joint is connected to the third end of the first three-way joint, and the water pump controller is arranged between the second three-way joint and the first three-way joint. The present invention realizes the detection of the water pump controller in the high and low temperature impact use scenario, and then can find the weaknesses and deficiencies of the water pump controller, which is convenient for the design and improvement of the subsequent water pump controller.

Description

Technical Field

[0001] The present invention relates to the technical field of water pump detection, and in particular to a detection system and a detection method for a water pump controller. Background Art

[0002] The vehicle water pump controller is used to control the opening and closing of the water pump. When the water pump is turned on, it can drive the fluid flow in the pipeline. The working environment of the water pump controller may change rapidly, so it is necessary to test the working conditions of the water pump controller under high and low temperature shocks, that is, it is necessary to conduct high and low temperature shock tests on the water pump controller.

[0003] In the prior art, the process of quality inspection of the water pump controller is: by generating a water pump start instruction and a speed acquisition instruction, and sending the water pump start instruction and the speed acquisition instruction to the water pump controller, so that the water pump controller controls the operation of the water pump according to the water pump start instruction and feeds back the actual speed of the water pump, and receives the actual speed of the water pump, and displays the target speed and actual speed of the water pump, so that the inspection personnel can judge whether the water pump controller is working normally. However, this inspection method cannot realize the inspection of the water pump controller in the high and low temperature impact use scenario, that is, it cannot realize the inspection of the service life of the water pump controller in the high and low temperature impact use scenario, and there are few inspection systems and inspection methods for inspecting the water pump controller in the high and low temperature impact use scenario in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a detection system and detection method for a water pump controller, which realizes the detection of the water pump controller in high and low temperature impact usage scenarios, and then can discover the weaknesses and deficiencies of the water pump controller, facilitating the subsequent design and improvement of the water pump controller.

[0005] As conceived above, the technical solution adopted by the present invention is:

[0006] A detection system for a water pump controller, comprising:

[0007] A high temperature box, the high temperature box is used to contain liquid, and the temperature of the liquid in the high temperature box is within a first temperature range;

[0008] A low temperature box, the low temperature box is used to contain liquid, and the temperature of the liquid in the low temperature box is within a second temperature range;

[0009] A first three-way joint, wherein a first end of the first three-way joint is connected to the liquid outlet of the high-temperature box, and a first solenoid valve is provided between the first end of the first three-way joint and the liquid outlet of the high-temperature box, and a second end of the first three-way joint is connected to the liquid outlet of the low-temperature box, and a second solenoid valve is provided between the second end of the first three-way joint and the liquid outlet of the low-temperature box;

[0010] A second three-way joint, the first end of the second three-way joint is connected to the liquid return port of the high-temperature box, and a third solenoid valve is provided between the first end of the second three-way joint and the liquid return port of the high-temperature box, the second end of the second three-way joint is connected to the liquid return port of the low-temperature box, and a fourth solenoid valve is provided between the second end of the second three-way joint and the liquid return port of the low-temperature box, the third end of the second three-way joint is connected to the third end of the first three-way joint, and the detected water pump controller is provided between the third end of the second three-way joint and the third end of the first three-way joint.

[0011] Optionally, a host computer is also included, which is communicatively connected to the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve. The host computer is used to control the working state of the water pump controller, and can receive a working signal sent by the water pump controller, and control the opening and closing of the first solenoid valve, the opening and closing of the second solenoid valve, the opening and closing of the third solenoid valve, and the opening and closing of the fourth solenoid valve according to the working signal and detection requirements.

[0012] Optionally, it further comprises a liquid level balancing device, the liquid level balancing device comprising a connecting pipeline and a fifth solenoid valve arranged on the connecting pipeline, one end of the connecting pipeline is connected to the bottom end of the high temperature box, and the other end of the connecting pipeline is connected to the bottom end of the low temperature box;

[0013] The fifth solenoid valve is configured to open when the difference between the liquid height in the high temperature box and the liquid height in the low temperature box is greater than a preset liquid difference, so that the high temperature box is connected with the low temperature box to achieve the purpose of liquid level balance.

[0014] Optionally, it further comprises a liquid adding device, the liquid adding device comprises a liquid adding box, a third three-way joint, a sixth solenoid valve and a seventh solenoid valve, the first end of the third three-way joint is connected to the liquid adding box, the second end of the third three-way joint is connected to the high-temperature box, and the sixth solenoid valve is arranged between the second end of the third three-way joint and the high-temperature box, the third end of the third three-way joint is connected to the low-temperature box, and the seventh solenoid valve is arranged between the third end of the third three-way joint and the low-temperature box;

[0015] The sixth solenoid valve is configured to open when the liquid level in the high-temperature box is lower than the first liquid level lower limit, so that the liquid in the liquid adding box is added to the high-temperature box; the seventh solenoid valve is configured to open when the liquid level in the low-temperature box is lower than the second liquid level lower limit, so that the liquid in the liquid adding box is added to the low-temperature box.

[0016] Optionally, a heating component is further included, which is arranged in the high-temperature box and is used to heat the liquid in the high-temperature box, or the heating component is connected to the high-temperature box and is used to obtain the liquid in the high-temperature box and then transport it to the high-temperature box after heating.

[0017] Optionally, a high-temperature cooling device is also included, which includes a first hydraulic pump and a plurality of first coolers, and the high-temperature box, the first hydraulic pump and the plurality of first coolers form a first cooling loop, the first hydraulic pump is used to drive the flow of liquid in the first cooling loop, and the first cooler is used to cool the liquid in the first cooling loop.

[0018] Optionally, a low-temperature cooling device is also included, which includes a second hydraulic pump and a plurality of second coolers, and the low-temperature box, the second hydraulic pump and the plurality of second coolers form a second cooling loop, the second hydraulic pump is used to drive the flow of liquid in the second cooling loop, and the second cooler is used to cool the liquid in the second cooling loop.

[0019] Optionally, a first flow sensor is provided between the third solenoid valve and the liquid return port of the high-temperature box, and between the fourth solenoid valve and the liquid return port of the low-temperature box, respectively.

[0020] A method for detecting a water pump controller is used in the detection system of the water pump controller as described above, and the method for detecting a water pump controller comprises the following steps:

[0021] S1, controlling the first solenoid valve and the third solenoid valve to be continuously opened for a first preset time, and controlling the second solenoid valve and the fourth solenoid valve to be closed, so that the liquid in the high-temperature box body flows through the water pump controller;

[0022] S2, controlling the first solenoid valve and the third solenoid valve to close, and controlling the second solenoid valve and the fourth solenoid valve to continue to open for a second preset time, so that the liquid in the low-temperature box flows through the water pump controller;

[0023] S3, executing a loop step, the loop step includes looping steps S1 and S2 for a preset time length or a preset number of times, and while executing the loop step, when the upper computer determines that the working signal received from the water pump controller is a failure signal, the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve are controlled to be closed, and the loop step is terminated.

[0024] Optionally, in step S1, the third solenoid valve is opened, and the first solenoid valve is opened after a first delay time;

[0025] In step S2, the first solenoid valve is closed, the third solenoid valve is closed after a second delay period, and the fourth solenoid valve is opened. The second solenoid valve is opened after a third delay period. After the second and fourth solenoid valves are opened continuously for a second preset period, the second solenoid valve is closed, and the fourth solenoid valve is closed after a fourth delay period.

[0026] The present invention has at least the following beneficial effects:

[0027] The detection system of the water pump controller provided by the present invention comprises a high-temperature box, a first solenoid valve, a first three-way joint, a water pump controller, a second three-way joint and a third solenoid valve forming a high-temperature loop so as to simulate the use of the water pump controller in a high-temperature scenario; a low-temperature box, a second solenoid valve, a first three-way joint, a water pump controller, a second three-way joint and a fourth solenoid valve forming a low-temperature loop so as to simulate the use of the water pump controller in a low-temperature scenario; by controlling the intermittent opening and closing of the four solenoid valves, the high-temperature liquid and the low-temperature liquid can alternately flow through the water pump controller; the high-temperature liquid and the low-temperature liquid flowing through the water pump controller in sequence once can be called a cycle; therefore, the number of cycles can be set to 3000 times; if the water pump controller fails within 3000 times, the water pump controller is determined to be unqualified; if the water pump controller does not have any abnormality or damage for more than 3000 times, the water pump controller is determined to be qualified; thus, the detection of the water pump controller in high and low temperature impact use scenarios is realized, and the weaknesses and deficiencies of the water pump controller can be discovered, which is convenient for the design and improvement of the subsequent water pump controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of a detection system for a water pump controller provided in an embodiment of the present invention;

[0029] Figure 2 It is a flow chart of a detection method of a water pump controller provided by an embodiment of the present invention.

[0030] In the figure:

[0031] 1. High temperature box; 2. Low temperature box; 3. First three-way joint; 31. First end; 32. Second end; 33. Third end; 4. First solenoid valve; 5. Second solenoid valve; 6. Second three-way joint; 61. First port; 62. Second port; 63. Third port; 7. Third solenoid valve; 8. Fourth solenoid valve; 9. Connecting pipeline; 10. Fifth solenoid valve; 11. Liquid adding box; 12. Third three-way joint; 121. Inlet end; 122. First outlet end; 123. Second outlet end; 13. Sixth solenoid valve; 14. Seventh solenoid valve; 15. First hydraulic pump; 16. First cooler; 17. Second hydraulic pump; 18. Second cooler; 19. First flow sensor; 20. First manual valve; 21. Second manual valve; 22. Temperature controller; 23. Third manual valve; 24. Fourth manual valve; 25. Fifth manual valve; 26. Second flow sensor; 27. Third flow sensor;

[0032] 100. Water pump controller. DETAILED DESCRIPTION

[0033] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Embodiment 1

[0037] The present embodiment provides a water pump controller detection system for detecting the water pump controller, which can implement testing of the water pump controller under high and low temperature shock scenarios, and facilitate the discovery of problems that are more likely to occur during the use of the test pump controller.

[0038] like Figure 1 As shown, the detection system of the water pump controller includes a high-temperature box 1, a low-temperature box 2, a first three-way connector 3, a first solenoid valve 4, a second solenoid valve 5, a second three-way connector 6, a third solenoid valve 7 and a fourth solenoid valve 8.

[0039] The high temperature box 1 is used to contain high temperature liquid, and the temperature of the liquid in the high temperature box 1 is within a first temperature range. The liquid in the high temperature box 1 is used to flow through the water pump controller 100 to simulate the operation of the water pump controller 100 in a high temperature environment. Optionally, the liquid in the high temperature box 1 can be a coolant. In some embodiments, the first temperature range is exemplified as above 100 degrees Celsius. The high temperature box 1 has a plurality of liquid outlets and a plurality of liquid return ports.

[0040] The low temperature box 2 is used to accommodate low temperature liquid, and the temperature of the liquid in the low temperature box 2 is within the second temperature range. The liquid in the low temperature box 2 is used to flow through the water pump controller 100 to simulate the operation of the water pump controller 100 in a low temperature environment. Optionally, the liquid in the low temperature box 2 can be a coolant. In some embodiments, the maximum value of the second temperature range is less than the minimum value of the first temperature range, that is, the temperature of the liquid in the low temperature box 2 is lower than the temperature of the liquid in the high temperature box 1. In some embodiments, the second temperature range is exemplified as -30 to 35 degrees Celsius. The low temperature box 2 has a plurality of liquid outlets and a plurality of liquid return ports.

[0041] See also Figure 1, the first end 31 of the first three-way joint 3 is connected to the liquid outlet of the high-temperature box 1, so that the high-temperature liquid in the high-temperature box 1 can flow to the first three-way joint 3 through the liquid outlet, and the first solenoid valve 4 is connected between the first end 31 of the first three-way joint 3 and the liquid outlet of the high-temperature box 1. When the first solenoid valve 4 is opened, the high-temperature liquid in the high-temperature box 1 can flow to the first end 31 of the first three-way joint 3; when the first solenoid valve 4 is closed, the high-temperature liquid in the high-temperature box 1 cannot flow to the first end 31 of the first three-way joint 3. The second end 32 of the first three-way joint 3 is connected to the liquid outlet of the low-temperature box 2, and the second solenoid valve 5 is connected between the second end 32 of the first three-way joint 3 and the liquid outlet of the low-temperature box 2. When the second solenoid valve 5 is opened, the low-temperature liquid in the low-temperature box 2 can flow to the second end 32 of the first three-way joint 3; when the second solenoid valve 5 is closed, the low-temperature liquid in the low-temperature box 2 cannot flow to the second end 32 of the first three-way joint 3. It should be noted that the first three-way joint 3 is substantially a three-way joint, and the first end 31 of the first three-way joint 3 is an opening of the three-way joint. The second end 32 of the first three-way joint 3 is another opening of the three-way joint.

[0042] like Figure 1 As shown, the first port 61 of the second three-way joint 6 is connected to the liquid return port of the high-temperature box 1, and the third solenoid valve 7 is arranged between the first port 61 of the second three-way joint 6 and the liquid return port of the high-temperature box 1. When the third solenoid valve 7 is opened, the liquid flowing to the second three-way joint 6 can flow back to the high-temperature box 1; when the third solenoid valve 7 is closed, the liquid flowing to the second three-way joint 6 cannot flow to the high-temperature box 1. The second port 62 of the second three-way joint 6 is connected to the liquid return port of the low-temperature box 2, and the fourth solenoid valve 8 is connected between the second port 62 of the second three-way joint 6 and the liquid return port of the low-temperature box 2. When the fourth solenoid valve 8 is opened, the liquid flowing to the second three-way joint 6 can flow back to the low-temperature box 2; when the fourth solenoid valve 8 is closed, the liquid flowing to the second three-way joint 6 cannot flow to the low-temperature box 2. The third port 63 of the second three-way joint 6 is connected to the third end 33 of the first three-way joint 3 , and the detected water pump controller 100 is disposed between the third port 63 of the second three-way joint 6 and the third end 33 of the first three-way joint 3 .

[0043] It should be noted that pipelines are used to connect the high-temperature box 1 and the first three-way joint 3, the low-temperature box 2 and the first three-way joint 3, the first three-way joint 3 and the second three-way joint 6, the second three-way joint 6 and the high-temperature box 1, and the second three-way joint 6 and the low-temperature box 2, and the first solenoid valve 4, the second solenoid valve 5, the third solenoid valve 7 and the fourth solenoid valve 8 are connected in the pipelines.

[0044] The detection system of the water pump controller provided in this embodiment, the high temperature box 1, the first solenoid valve 4, the first three-way joint 3, the water pump controller 100, the second three-way joint 6 and the third solenoid valve 7 form a high temperature loop to simulate the use of the water pump controller 100 in a high temperature scene, and the low temperature box 2, the second solenoid valve 5, the first three-way joint 3, the water pump controller 100, the second three-way joint 6 and the fourth solenoid valve 8 form a low temperature loop to simulate the use of the water pump controller 100 in a low temperature scene. By controlling the intermittent opening and closing of the four solenoid valves, high temperature liquid and The low-temperature liquid flows through the water pump controller 100 alternately, and the high-temperature liquid and the low-temperature liquid flow through the water pump controller in turn once, which can be called a cycle. Therefore, the number of cycles can be set to 3000 times. If the water pump controller fails within 3000 times, the water pump controller is determined to be unqualified. If the water pump controller does not have any abnormality or damage after more than 3000 times, the water pump controller is determined to be qualified. The detection of the water pump controller 100 in high and low temperature impact usage scenarios is realized, and the weaknesses and deficiencies of the water pump controller 100 can be discovered, which is convenient for the subsequent design and improvement of the water pump controller 100.

[0045] Optionally, the detection system of the water pump controller also includes a host computer. The host computer is communicatively connected to the first solenoid valve 4, the second solenoid valve 5, the third solenoid valve 7 and the fourth solenoid valve 8. The host computer is used to control the working state of the water pump controller 100, and can receive the working signal sent by the water pump controller 100, and control the opening and closing of the first solenoid valve 4, the opening and closing of the second solenoid valve 5, the opening and closing of the third solenoid valve 7 and the opening and closing of the fourth solenoid valve 8 according to the working signal. Optionally, the host computer can also control the opening and closing of the first solenoid valve 4, the opening and closing of the second solenoid valve 5, the opening and closing of the third solenoid valve 7 and the opening and closing of the fourth solenoid valve 8 according to the detection requirements of high and low temperature shocks. Among them, the detection requirement example is to control how long the high-temperature liquid flows through the water pump controller 100, and to control how long the low-temperature liquid flows through the water pump controller 100.

[0046] Among them, the working signal includes a normal signal and a failure signal. When the water pump controller 100 operates normally, the water pump controller 100 sends a normal signal to the upper computer. At this time, the upper computer controls the first solenoid valve 4 and the third solenoid valve 7 to open, and the second solenoid valve 5 and the fourth solenoid valve 8 to close, or the upper computer controls the second solenoid valve 5 and the fourth solenoid valve 8 to open, and the first solenoid valve 4 and the third solenoid valve 7 to close. When the water pump controller 100 is damaged or operates abnormally, the water pump controller 100 sends a failure signal to the upper computer. At this time, the upper computer controls the first solenoid valve 4, the second solenoid valve 5, the third solenoid valve 7 and the fourth solenoid valve 8 to close, and stops detection.

[0047] In this embodiment, the detection system of the water pump controller also includes a liquid level balancing device, such as Figure 1 As shown, the liquid level balancing device includes a connecting pipe 9 and a fifth solenoid valve 10 arranged on the connecting pipe 9. One end of the connecting pipe 9 is connected to the bottom end of the high temperature box 1, and the other end of the connecting pipe 9 is connected to the bottom end of the low temperature box 2. The fifth solenoid valve 10 is configured to open when the difference between the liquid height in the high temperature box 1 and the liquid height in the low temperature box 2 is greater than a preset liquid difference, so that the high temperature box 1 and the low temperature box 2 are connected through the connecting pipe 9. The connecting pipe 9 is connected to the bottom ends of the high temperature box 1 and the low temperature box 2 to facilitate the flow of liquid and balance the liquid level.

[0048] When the difference between the liquid height in the high-temperature box 1 and the liquid height in the low-temperature box 2 is less than or equal to the preset liquid difference, the fifth solenoid valve 10 is in a closed state. Since the high-temperature loop and the low-temperature loop are constantly switched, and there is an overlapping part between the high-temperature loop and the low-temperature loop, the high-temperature liquid and the low-temperature liquid will be mixed together, and it is easier to cause the liquid level in the high-temperature box 1 and the liquid level in the low-temperature box 2 to be unbalanced, affecting the normal detection. In this embodiment, by setting the connecting pipe 9 and the fifth solenoid valve 10, the high-temperature box 1 can be connected with the low-temperature box 2, so that the liquid level in the high-temperature box 1 is equal to the liquid level in the low-temperature box 2.

[0049] Optionally, the fifth solenoid valve 10 is communicatively connected to the host computer, and the host computer is also used to control the opening and closing of the fifth solenoid valve 10. In some embodiments, the host computer can obtain the liquid height in the high-temperature box 1 and the liquid height in the low-temperature box 2, and then obtain the height difference according to the two liquid level heights, and compare the height difference with the pre-stored preset liquid difference, and finally determine whether to control the fifth solenoid valve 10 to open or close according to the comparison result. In other embodiments, the host computer controls the fifth solenoid valve 10 to open once every certain period of time, and the opening time of the fifth solenoid valve 10 can be 3 minutes. In some embodiments, the fifth solenoid valve 10 is connected to the DIO control board, and is connected to the host computer through the DIO control board communication.

[0050] For example, Figure 1 As shown, a third manual valve 23 is further connected between the fifth solenoid valve 10 and the high temperature box 1, and a fourth manual valve 24 is further connected between the fifth solenoid valve 10 and the low temperature box 2. When the fifth solenoid valve 10 is damaged, the high temperature box 1 can be closed by the third manual valve 23, and the low temperature box 2 can be closed by the fourth manual valve 24 to prevent the liquid in the high temperature box 1 and the liquid in the low temperature box 2 from flowing out, thereby facilitating the replacement or maintenance of the fifth solenoid valve 10.

[0051] In this embodiment, the detection system of the water pump controller also includes a liquid adding device, such as Figure 1As shown, the liquid adding device includes a liquid adding box 11, a third three-way joint 12, a sixth solenoid valve 13 and a seventh solenoid valve 14. Among them, the inlet end 121 of the third three-way joint 12 is connected to the liquid adding box 11. The first outlet end 122 of the third three-way joint 12 is connected to the high-temperature box 1, and the sixth solenoid valve 13 is connected between the first outlet end 122 of the third three-way joint 12 and the high-temperature box 1. In addition, the sixth solenoid valve 13 is configured to open when the liquid height in the high-temperature box 1 is lower than the first liquid level lower limit, so that the liquid in the liquid adding box 11 is added to the high-temperature box 1, thereby ensuring that there is enough liquid in the high-temperature box 1. The second outlet end 123 of the third three-way joint 12 is connected to the low-temperature box 2, and the seventh solenoid valve 14 is connected between the second outlet end 123 of the third three-way joint 12 and the low-temperature box 2. Furthermore, the seventh solenoid valve 14 is configured to open when the liquid level in the low temperature box 2 is lower than the second liquid level lower limit, so that the liquid in the liquid adding box 11 is added to the low temperature box 2, thereby ensuring that there is enough liquid in the low temperature box 2. Optionally, the liquid adding box 11 and the third three-way joint 12, the third three-way joint 12 and the high temperature box 1, and the third three-way joint 12 and the low temperature box 2 are connected by pipelines respectively.

[0052] Further, the seventh solenoid valve 14 and the sixth solenoid valve 13 are respectively connected to the host computer by communication, and the host computer can obtain the liquid height in the high-temperature box 1 and the liquid height in the low-temperature box 2. The host computer compares the liquid height in the high-temperature box 1 with the pre-stored first liquid level lower limit, and controls the opening or closing of the sixth solenoid valve 13 according to the comparison result. The host computer compares the liquid height in the low-temperature box 2 with the pre-stored second liquid level lower limit, and controls the opening or closing of the seventh solenoid valve 14 according to the comparison result. In some embodiments, the seventh solenoid valve 14 and the sixth solenoid valve 13 are respectively connected to the DIO control board, and are connected to the host computer through the DIO control board.

[0053] Alternatively, if Figure 1 As shown, a fifth manual valve 25 is further provided between the third three-way connector 12 and the liquid adding tank 11 , and the fifth manual valve 25 can control the conduction or disconnection between the third three-way connector 12 and the liquid adding tank 11 .

[0054] It should be noted that the order of action of the liquid level balancing device and the liquid adding device can be to control the liquid level balancing device to work first, and when the fifth solenoid valve 10 in the liquid level balancing device is opened, the liquid height in the high temperature box 1 is still lower than the first liquid level lower limit, and the sixth solenoid valve 13 is controlled to open. Similarly, when the fifth solenoid valve 10 in the liquid level balancing device is opened, the liquid height in the low temperature box 2 is still lower than the second liquid level lower limit, and the seventh solenoid valve 14 is controlled to open.

[0055] Optionally, the liquid in the liquid adding tank 11 may be a room temperature liquid, resulting in the liquid temperature in the high temperature tank 1 not meeting the requirements after being added to the high temperature tank 1. Therefore, it is necessary to heat the liquid in the high temperature tank 1 by a heating component. In some embodiments, the heating component is disposed in the high temperature tank 1 and is used to heat the liquid in the high temperature tank 1. In other embodiments, the heating component is located outside the high temperature tank 1 and is connected to the high temperature tank 1. The heating component can obtain the liquid in the high temperature tank 1 for heating, and transport the heated liquid to the high temperature tank 1, so that the liquid temperature in the high temperature tank 1 meets the requirements. Optionally, the heating component can be a device that can heat liquid, such as a heating tube.

[0056] The detection system of the water pump controller provided in this embodiment also includes a high temperature cooling device, which is used to cool the liquid in the high temperature box 1 when the temperature is too high. Figure 1 , the high-temperature cooling device includes a first hydraulic pump 15 and a plurality of first coolers 16. Among them, the high-temperature box 1, the first hydraulic pump 15 and the plurality of first coolers 16 are connected in sequence to form a first cooling loop, the first hydraulic pump 15 is used to drive the flow of liquid in the first cooling loop, and each first cooler 16 is used to cool the liquid in the first cooling loop. The cooled liquid flows into the high-temperature box 1 to reduce the overall temperature of the liquid in the high-temperature box 1. For example, a plurality of first coolers 16 are connected in series in sequence, and the first cooler 16 can be an AC cooler. In some embodiments, a second flow sensor 26 is also provided in the first cooling loop, and the second flow sensor 26 is used to measure the flow rate of the liquid in the first cooling loop.

[0057] In this embodiment, the first hydraulic pump 15 is communicatively connected to the host computer, and the host computer can control the start of the first hydraulic pump 15. When the first hydraulic pump 15 is started, the liquid in the high-temperature box 1 can flow to the first cooler 16. When the first hydraulic pump 15 is turned off, the liquid in the high-temperature box 1 cannot flow through the first hydraulic pump 15 and the first cooler 16. In some embodiments, the first hydraulic pump 15 can be connected to a DIO control board, and is communicatively connected to the host computer through the DIO control board.

[0058] Optionally, in this embodiment, the temperature of the liquid in the low temperature box 2 is cooled by a low temperature cooling device to ensure that the temperature of the liquid in the low temperature box 2 meets the requirements. Figure 1As shown, the low-temperature cooling device includes a second hydraulic pump 17 and a plurality of second coolers 18. Furthermore, the low-temperature box 2, the second hydraulic pump 17 and the plurality of second coolers 18 are connected in sequence to form a second cooling loop, the second hydraulic pump 17 is used to drive the flow of liquid in the second cooling loop, and the second cooler 18 is used to cool the liquid in the second cooling loop. For example, the plurality of second coolers 18 are connected in series in sequence, and the second cooler 18 can be an AC cooler. In some embodiments, a third flow sensor 27 is also provided in the second cooling loop, and the third flow sensor 27 is used to measure the flow of the liquid in the second cooling loop.

[0059] In this embodiment, the second hydraulic pump 17 is communicatively connected to the host computer, and the host computer can control the start of the second hydraulic pump 17. When the second hydraulic pump 17 is started, the liquid in the low-temperature box 2 can flow to the second cooler 18. When the second hydraulic pump 17 is turned off, the liquid in the low-temperature box 2 cannot flow through the second hydraulic pump 17 and the second cooler 18. In some embodiments, the second hydraulic pump 17 can be connected to a DIO control board, and is communicatively connected to the host computer through the DIO control board.

[0060] Please continue to see Figure 1 A first flow sensor 19 is provided between the third solenoid valve 7 and the liquid return port of the high-temperature box 1, and between the fourth solenoid valve 8 and the liquid return port of the low-temperature box 2. The first flow sensor 19 located between the third solenoid valve 7 and the liquid return port of the high-temperature box 1 is used to detect whether liquid flows through the third solenoid valve 7, so as to determine whether liquid exists in the high-temperature loop. When liquid does not exist in the high-temperature loop, it is necessary to stop the detection and find out the reason why liquid does not exist in the high-temperature loop to prevent the water pump from running idle or burning out. Similarly, the first flow sensor 19 located between the fourth solenoid valve 8 and the liquid return port of the low-temperature box 2 is used to detect whether liquid flows through the fourth solenoid valve 8, so as to determine whether liquid exists in the low-temperature loop. When liquid does not exist in the low-temperature loop, it is necessary to stop the detection and find out the reason why liquid does not exist in the low-temperature loop.

[0061] Furthermore, a first manual valve 20 is provided in the high temperature loop. Specifically, Figure 1 As shown, the first manual valve 20 is provided between the high temperature box 1 and the first solenoid valve 4. When the first solenoid valve 4 fails, the first manual valve 20 can be used to control the conduction or closing of the high temperature loop, which is convenient for the replacement or maintenance of the first solenoid valve 4. Similarly, a second manual valve 21 is also provided in the low temperature loop. Specifically, the second manual valve 21 is provided between the low temperature box 2 and the second solenoid valve 5. When the second solenoid valve 5 fails, the second manual valve 21 can be used to control the conduction or closing of the low temperature loop, which is convenient for the replacement or maintenance of the second solenoid valve 5.

[0062] Optionally, see Figure 1A thermostat 22 is also provided between the water pump controller 100 and the second three-way connector 6. The thermostat 22 is used to detect the actual temperature of the liquid after flowing through the water pump controller 100, so as to actually grasp the high and low temperature impact of the water pump controller 100.

[0063] It should be noted that the water pump controller 100 and the water pump are an integral structure, and the water pump is used to drive the flow of liquid in the high-temperature loop and the low-temperature loop.

[0064] The detection system of the water pump controller provided in this embodiment has a high test intensity. Moreover, it can realize the live operation of the water pump controller 100. The test is carried out in an environment with a large current intensity and a high temperature. This test state far exceeds the actual working intensity of the car, so it is easier to find the design deficiencies of the water pump controller 100.

[0065] In addition, the detection system of the water pump controller provided in this embodiment is highly versatile, and has a dedicated host computer to control the current, speed and temperature of the water pump controller 100, allowing the water pump controller 100 to work at different values ​​and levels to meet the requirements of different customers. Moreover, the detection system of this water pump controller can also meet the testing of various models of water pump controllers 100.

[0066] Embodiment 2

[0067] This embodiment provides a water pump controller detection method, which is used in the water pump controller detection system in the above embodiment 1 and is executed by a host computer. Figure 2 As shown, the detection method of the water pump controller 100 includes the following steps:

[0068] S1 , controlling the first solenoid valve 4 and the third solenoid valve 7 to be continuously opened for a first preset time, and controlling the second solenoid valve 5 and the fourth solenoid valve 8 to be closed, so that the liquid in the high-temperature box 1 flows through the water pump controller 100 .

[0069] In step S1, the host computer controls the first solenoid valve 4 and the third solenoid valve 7 to open and keep them open for a first preset time, at which time the liquid in the high temperature box 1 flows through the water pump controller 100. In some embodiments, the first preset time is 2 to 3 minutes.

[0070] S2, controlling the first solenoid valve 4 and the third solenoid valve 7 to close, and controlling the second solenoid valve 5 and the fourth solenoid valve 8 to continue to open for a second preset time, so that the liquid in the low-temperature box 2 flows through the water pump controller 100.

[0071] After the first solenoid valve 4 and the third solenoid valve 7 are opened for the first preset time, the host computer controls the first solenoid valve 4 and the third solenoid valve 7 to close, and controls the second solenoid valve 5 and the fourth solenoid valve 8 to open, so that the cryogenic liquid in the cryogenic box 2 flows through the water pump controller 100. The second solenoid valve 5 and the fourth solenoid valve 8 are opened for the second preset time, and the second preset time is 2 to 3 minutes.

[0072] S3, execute the loop step, the loop step includes looping step S1 and step S2 for a preset time length or a preset number of times, and while executing the loop step, when the upper computer determines that the working signal received from the water pump controller 100 is a failure signal, the first solenoid valve 4, the second solenoid valve 5, the third solenoid valve 7 and the fourth solenoid valve 8 are controlled to close, and the loop step is ended.

[0073] Within the preset time or the preset number of times, when the host computer determines that the working signal sent by the water pump controller 100 is a failure signal, the high temperature loop and the low temperature loop are turned off to end the detection. In some embodiments, the preset time is 15 days or 300 hours, and the preset number of times is 3000 times.

[0074] It should be noted that in order to ensure the safety of the detection system of the water pump controller, when the flow sensor in the system (i.e., at least one of the first flow sensor 19, the second flow sensor 26, and the third flow sensor 27) sends a failure signal to the host computer, it means that there is no fluid in the pipeline. At this time, the host computer controls the entire system to shut down and end the detection.

[0075] Further, in step S1, the third solenoid valve 7 is opened, and the first solenoid valve 4 is opened after the first delay time. In step S2, the first solenoid valve 4 is closed, the third solenoid valve 7 is closed after the second delay time, and the fourth solenoid valve 8 is opened to pump out the high-temperature liquid in the high-temperature loop as much as possible to avoid a large amount of mixing of the high-temperature liquid and the low-temperature liquid, so as to facilitate the control of the liquid temperature in the high-temperature box 1 and the liquid temperature in the low-temperature box 2. After the third delay time of opening the fourth solenoid valve 8, the second solenoid valve 5 is opened, and after the second solenoid valve 5 and the fourth solenoid valve 8 are continuously opened for the second preset time, the second solenoid valve 5 is closed, and the fourth solenoid valve 8 is closed after the fourth delay time. By way of example, in this embodiment, the first delay time can be 0.5~1.5 seconds, the second delay time can be 4~6 seconds, the third delay time can be 0.5~1.5 seconds, and the fourth delay time can be 4~6 seconds.

[0076] The detection method of the water pump controller provided in this embodiment has the same beneficial effects as the detection system of the water pump controller in the first embodiment, and this embodiment will not be described in detail here.

[0077] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A detection system for a water pump controller, It is characterized in that include: A high temperature box (1), the high temperature box (1) is used to contain liquid, and the temperature of the liquid in the high temperature box (1) is within a first temperature range; A low-temperature box (2), the low-temperature box (2) being used to contain liquid, and the temperature of the liquid in the low-temperature box (2) is within a second temperature range, and the maximum value of the second temperature range is less than the minimum value of the first temperature range; A first three-way joint (3), wherein a first end (31) of the first three-way joint (3) is connected to a liquid outlet of the high-temperature box (1), and a first solenoid valve (4) is provided between the first end (31) of the first three-way joint (3) and the liquid outlet of the high-temperature box (1), and a second end (32) of the first three-way joint (3) is connected to a liquid outlet of the low-temperature box (2), and a second solenoid valve (5) is provided between the second end (32) of the first three-way joint (3) and the liquid outlet of the low-temperature box (2); a second three-way joint (6), wherein a first port (61) of the second three-way joint (6) is connected to a liquid return port of the high-temperature box (1), and a third solenoid valve (7) is provided between the first port (61) of the second three-way joint (6) and the liquid return port of the high-temperature box (1); a second port (62) of the second three-way joint (6) is connected to a liquid return port of the low-temperature box (2), and a fourth solenoid valve (8) is provided between the second port (62) of the second three-way joint (6) and the liquid return port of the low-temperature box (2); a third port (63) of the second three-way joint (6) is connected to a third end (33) of the first three-way joint (3), and a detected water pump controller (100) is provided between the third port (63) of the second three-way joint (6) and the third end (33) of the first three-way joint (3); A liquid adding device, the liquid adding device comprising a liquid adding box (11), a third three-way joint (12), a sixth solenoid valve (13) and a seventh solenoid valve (14), wherein an inlet end (121) of the third three-way joint (12) is connected to the liquid adding box (11), a first outlet end (122) of the third three-way joint (12) is connected to the high-temperature box (1), and the sixth solenoid valve (13) is arranged between the first outlet end (122) of the third three-way joint (12) and the high-temperature box (1), a second outlet end (123) of the third three-way joint (12) is connected to the low-temperature box (2), and the seventh solenoid valve (14) is arranged between the second outlet end (123) of the third three-way joint (12) and the low-temperature box (2); The sixth solenoid valve (13) is configured to open when the liquid level in the high-temperature box (1) is lower than a first liquid level lower limit, so that the liquid in the liquid adding box (11) is added to the high-temperature box (1); the seventh solenoid valve (14) is configured to open when the liquid level in the low-temperature box (2) is lower than a second liquid level lower limit, so that the liquid in the liquid adding box (11) is added to the low-temperature box (2); The detection method of the detection system of the water pump controller includes the following steps: S1, controlling the first solenoid valve (4) and the third solenoid valve (7) to remain open for a first preset time, and controlling the second solenoid valve (5) and the fourth solenoid valve (8) to close, so that the liquid in the high-temperature box (1) flows through the water pump controller (100); S2, controlling the first solenoid valve (4) and the third solenoid valve (7) to close, and controlling the second solenoid valve (5) and the fourth solenoid valve (8) to remain open for a second preset time, so that the liquid in the low-temperature box (2) flows through the water pump controller (100); S3, executing a loop step, the loop step comprising looping steps S1 and S2 for a preset time length or a preset number of times, and while executing the loop step, when the host computer determines that the working signal received from the water pump controller (100) is a failure signal, controlling the first solenoid valve (4), the second solenoid valve (5), the third solenoid valve (7) and the fourth solenoid valve (8) to close, and ending the loop step; In step S1, the third solenoid valve (7) is opened, and the first solenoid valve (4) is opened after a first delay time. In step S2, the first solenoid valve (4) is closed, the third solenoid valve (7) is closed after a second delay time, and the fourth solenoid valve (8) is opened, the second solenoid valve (5) is opened after a third delay time, the second solenoid valve (5) and the fourth solenoid valve (8) are opened continuously for a second preset time, the second solenoid valve (5) is closed, and the fourth solenoid valve (8) is closed after a fourth delay time.

2. The detection system of the water pump controller according to claim 1, It is characterized in that The system further comprises a host computer, the host computer being communicatively connected to the first solenoid valve (4), the second solenoid valve (5), the third solenoid valve (7) and the fourth solenoid valve (8), the host computer being used to control the working state of the water pump controller (100), and being capable of receiving a working signal sent by the water pump controller (100), and controlling the opening and closing of the first solenoid valve (4), the opening and closing of the second solenoid valve (5), the opening and closing of the third solenoid valve (7) and the opening and closing of the fourth solenoid valve (8) according to the working signal and the detection requirements.

3. The detection system of the water pump controller according to claim 1, It is characterized in that It also includes a liquid level balancing device, the liquid level balancing device including a connecting pipe (9) and a fifth solenoid valve (10) arranged on the connecting pipe (9), one end of the connecting pipe (9) is connected to the bottom end of the high-temperature box (1), and the other end of the connecting pipe (9) is connected to the bottom end of the low-temperature box (2); The fifth solenoid valve (10) is configured to open when the difference between the liquid height in the high-temperature box (1) and the liquid height in the low-temperature box (2) is greater than a preset liquid difference, so that the high-temperature box (1) is connected to the low-temperature box (2) to achieve the purpose of liquid level balance.

4. A detection system for a water pump controller according to any one of claims 1 to 3, It is characterized in that It also comprises a heating component, which is arranged in the high-temperature box (1) and is used to heat the liquid in the high-temperature box (1); or, the heating component is connected to the high-temperature box (1) and is used to obtain the liquid in the high-temperature box (1), heat it and then transport it to the high-temperature box (1).

5. The detection system of the water pump controller according to claim 4, It is characterized in that The high-temperature cooling device also includes a first hydraulic pump (15) and a plurality of first coolers (16), and the high-temperature housing (1), the first hydraulic pump (15) and the plurality of first coolers (16) form a first cooling loop, the first hydraulic pump (15) is used to drive the flow of liquid in the first cooling loop, and the first cooler (16) is used to cool the liquid in the first cooling loop.

6. The detection system of the water pump controller according to any one of claims 1 to 3, It is characterized in that The invention also includes a low-temperature cooling device, which includes a second hydraulic pump (17) and a plurality of second coolers (18), and the low-temperature box (2), the second hydraulic pump (17) and the plurality of second coolers (18) form a second cooling loop, the second hydraulic pump (17) is used to drive the flow of liquid in the second cooling loop, and the second cooler (18) is used to cool the liquid in the second cooling loop.

7. The detection system of the water pump controller according to any one of claims 1 to 3, It is characterized in that A first flow sensor (19) is provided between the third solenoid valve (7) and the liquid return port of the high-temperature box (1), and between the fourth solenoid valve (8) and the liquid return port of the low-temperature box (2), respectively.

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