Method and system for testing height adjusting valve of train air spring, and electronic equipment

Abstract

The invention relates to the field of train maintenance, and provides a test method and system for a height adjusting valve of a train air spring, and electronic equipment, and the method comprises the steps: collecting the air pressure value of the air outlet end of a to-be-tested height adjusting valve in real time after the air of a specific air pressure is inputted into the air inlet end of the to-be-tested height adjusting valve; based on the air pressure value of the air outlet end, the air pressure rising rate of the air outlet end is determined; and when the air pressure rising rate is lower than a set rising threshold value, determining that the height adjusting valve to be measured has a fault. The method and the device are used for overcoming the defect that the quality of the height adjusting valve cannot be guaranteed due to the fact that the height adjusting valve cannot be comprehensively detected in the prior art, the quality of the height adjusting valve can be detected from multiple aspects, and the safety of a train in the running process is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of train maintenance, and in particular to a test method and system for a height adjustment valve of a train air spring, and an electronic device. BACKGROUND

[0002] An air spring is needed to keep the bottom of a train stable during travel, and the working principle of the air spring is to use a height adjustment valve to increase and decrease pressure to achieve height adjustment. Therefore, the quality of the height adjustment valve is crucial to the normal operation of the air spring.

[0003] In related technologies, when testing the quality of the height adjustment valve, only gas is input to determine whether the height adjustment valve is normal by detecting whether the pressure at the other end changes. The detection is not comprehensive enough, which leads to the quality of the height adjustment valve not being guaranteed, and further affects the smooth travel of the train, which may cause passengers to be uncomfortable, and in severe cases, may cause the train to collide with the platform and other accidents. SUMMARY

[0004] The present application provides a test method and system for a height adjustment valve of a train air spring, and an electronic device, to solve the defect that the height adjustment valve cannot be comprehensively detected in related technologies, which leads to the quality of the height adjustment valve not being guaranteed. The scheme of the present application can detect the quality of the height adjustment valve from multiple aspects, and improve the safety of train travel.

[0005] The present application provides a test method for a height adjustment valve of a train air spring, comprising: After inputting gas with a specific pressure into the gas inlet end of the height adjustment valve to be tested, the gas pressure value at the gas outlet end of the height adjustment valve to be tested is collected in real time; Based on the gas pressure value at the gas outlet end, the gas pressure rising rate of the gas outlet end is determined; When the gas pressure rising rate is lower than a set rising threshold, it is determined that the height adjustment valve to be tested is faulty.

[0006] According to the test method for a height adjustment valve of a train air spring provided by the present application, after inputting gas with a specific pressure into the gas inlet end of the height adjustment valve to be tested, the gas pressure change at the gas outlet end of the height adjustment valve to be tested is collected, comprising: Adjusting the opening degree of the height adjustment valve to be tested; Inputting gas with a specific pressure into the height adjustment valve to be tested through the gas inlet end at different opening degrees, and collecting the gas pressure change at the gas outlet end of the height adjustment valve to be tested.

[0007] According to the test method for a height adjustment valve of a train air spring provided by the present application, the collection of the gas pressure change at the gas outlet end of the height adjustment valve to be tested comprises: The gas outlet end of the height adjustment valve to be tested is communicated with the gas tank through a flow limiting pipe; The gas pressure change of the gas tank is collected to represent the gas pressure change of the gas outlet end of the height adjustment valve to be tested.

[0008] According to the test method of the height adjustment valve of the train air spring provided by the application, the flow limiting pipe is provided with a uniform pressure release structure at one end close to the gas tank, which is used for preventing negative pressure.

[0009] According to the test method of the height adjustment valve of the train air spring provided by the application, the uniform pressure release structure comprises a funnel mouth and / or a uniform hole.

[0010] According to the test method of the height adjustment valve of the train air spring provided by the application, the test method further comprises: When the gas pressure of the gas outlet end of the height adjustment valve to be tested is stable, the height adjustment valve to be tested is depressurized at a set speed, and the gas pressure value of the gas outlet end of the height adjustment valve to be tested is collected in real time; Based on the gas pressure value of the gas outlet end, the gas pressure drop rate of the gas outlet end is determined. If the gas pressure drop rate of the gas outlet end is higher than a set drop threshold, it is determined that the height adjustment valve to be tested is faulty.

[0011] According to the test method of the height adjustment valve of the train air spring provided by the application, the test method further comprises: When the gas pressure of the gas outlet end of the height adjustment valve to be tested is stable, the height adjustment valve to be tested is vibrated at a set frequency, and the gas pressure value of the gas outlet end of the height adjustment valve to be tested is collected in real time; If the gas pressure value of the gas outlet end fluctuates, it is determined that the height adjustment valve to be tested is faulty.

[0012] According to the test method of the height adjustment valve of the train air spring provided by the application, the test method further comprises: When the gas pressure of the gas outlet end of the height adjustment valve to be tested is stable, the height adjustment valve to be tested is controlled to generate a set length of displacement within a set time length, and the gas pressure value of the gas outlet end of the height adjustment valve to be tested is collected in real time; Based on the gas pressure value of the gas outlet end, the gas pressure change value of the gas outlet end is determined. If the gas pressure change value of the gas outlet end exceeds a set gas pressure change range, it is determined that the height adjustment valve to be tested is faulty.

[0013] The application also provides a test system of a height adjustment valve of a train air spring, which is applied to any one of the test methods of the height adjustment valve of the train air spring, and comprises: The gas pressure collection module is used for collecting the gas pressure value of the gas outlet end of the height adjustment valve to be tested in real time after a specific gas pressure gas is input into the gas inlet end of the height adjustment valve to be tested. a pressure calculation module, configured to determine a pressure rising rate of the air outlet end based on the pressure value of the air outlet end; a fault test module, configured to determine that the height adjustment valve to be tested is faulty when the pressure rising rate is lower than a set rising threshold.

[0014] The present application also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the test method of the height adjustment valve of the train air spring when executing the program.

[0015] The present application also provides a non-transitory computer readable storage medium, which stores a computer program, and the computer program implements the test method of the height adjustment valve of the train air spring when executed by a processor.

[0016] The present application also provides a computer program product, comprising a computer program, and the computer program implements the test method of the height adjustment valve of the train air spring when executed by a processor.

[0017] The test method of the height adjustment valve of the train air spring provided by the present application can detect the cooperation of the internal parts of the height adjustment valve by detecting the speed of pressure change, avoid damage to the cooperation of the internal parts of the height adjustment valve, and the slow height adjustment speed of the air spring, so that the train cannot maintain stability, and the more comprehensive test of the height adjustment valve is realized, which provides protection for the stable operation of the train, and further reduces the possibility of train safety accidents. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0019] Figure 1 is a flowchart of the test method of the height adjustment valve of the train air spring provided by the present application; Figure 2 is a structural schematic diagram of the height adjustment valve provided by the present application; Figure 3 is a structural schematic diagram of the test system of the height adjustment valve of the train air spring provided by the present application; Figure 4 is a structural schematic diagram of the electronic device provided by the present application.

[0020] wherein: 1 - inlet end; 2 - outlet end. DETAILED DESCRIPTION

[0021] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0022] Figure 1 is a flowchart of a test method of a height adjustment valve of a train air spring provided by an embodiment of the present application.

[0023] As shown in Figure 1 , the embodiment provides a test method of a height adjustment valve of a train air spring, which comprises: Step 101, after inputting gas with a specific pressure into the inlet end of the height adjustment valve to be tested, collecting the gas pressure value of the outlet end of the height adjustment valve to be tested in real time; Figure 2 is a structural diagram of the height adjustment valve provided by an embodiment of the present application.

[0024] As shown in Figure 2 , the height adjustment valve can input air through the inlet end 1 and exhaust air through the outlet end 2 in the working process, so in the process of testing the height adjustment valve, a gas tank can be connected to the inlet end and the outlet end of the height adjustment valve to be tested respectively, wherein the inlet end can be connected to a larger gas tank for air supply, for example, a 20L gas tank, which can provide air pressure to the height adjustment valve to be tested at a set pressure, and the outlet end of the height adjustment valve to be tested can be connected to a smaller gas tank, for example, a 5L gas tank, so that the change of the gas pressure of the gas tank can be collected to reflect the change of the gas pressure of the outlet end of the height adjustment valve to be tested.

[0025] In the implementation, the outlet end of the height adjustment valve to be tested can be connected to the gas tank through a flow-limiting pipe, and the end of the flow-limiting pipe connected to the gas tank can be provided with a uniform pressure release structure for preventing negative pressure, for example, the uniform pressure release structure can include a funnel mouth and / or uniform holes, that is, the end of the flow-limiting pipe connected to the gas tank can be a funnel mouth or densely covered with uniform holes.

[0026] In actual application, the gas pressure value of the outlet end can be collected respectively under different opening degrees of the height adjustment valve to be tested, that is, the opening degree of the height adjustment valve to be tested can be adjusted; the height adjustment valve to be tested is inputted with gas with a specific pressure through the inlet end under different opening degrees, and the gas pressure value of the outlet end of the height adjustment valve to be tested is collected, so that the test of different opening degrees of the height adjustment valve can be realized.

[0027] In step 102, the gas pressure rising rate of the outlet end is determined based on the gas pressure value of the outlet end. In actual application, after the gas pressure value of the outlet end of the height adjustment valve to be tested is collected in real time, the gas pressure change curve of the outlet end can be drawn, and based on this, the gas pressure rising rate of the outlet end of the height adjustment valve to be tested can be determined intuitively.

[0028] In step 103, when the gas pressure rising rate is lower than the set rising threshold, it is determined that the height adjustment valve to be tested is faulty.

[0029] In implementation, if the height adjustment valve to be tested is normal and not faulty, the gas pressure rising rate of the outlet end should be consistent with the gas pressure rising rate of the inlet end, that is, if the gas pressure rising rate of the outlet end is obviously lower than the normal value, it can be determined that the height adjustment valve to be tested is faulty. For example, there may be a problem in the cooperation of internal parts of the height adjustment valve. Normally, there should be a gap, so that when a part vibrates, it does not affect the next part. However, when there is no gap between the internal parts of the height adjustment valve, the parts cannot cooperate, and a phenomenon similar to resonance occurs.

[0030] In implementation, the set rising threshold can be obtained based on the input gas pressure of the inlet end.

[0031] In the test method of the height adjustment valve of the train air spring provided in this embodiment, the cooperation of the internal parts of the height adjustment valve can be detected by detecting the speed of the change in gas pressure, so as to avoid damage to the cooperation of the internal parts of the height adjustment valve, which causes the height adjustment speed of the air spring to be slow and the train to be unable to maintain stability. The height adjustment valve is more comprehensively tested, which provides protection for the stable operation of the train, and further reduces the possibility of train safety accidents.

[0032] In an exemplary embodiment, the test method of the height adjustment valve of the train air spring further includes: When the gas pressure of the outlet end of the height adjustment valve to be tested is stable, the height adjustment valve to be tested is depressurized at a set speed, and the gas pressure value of the outlet end of the height adjustment valve to be tested is collected in real time; The gas pressure falling rate of the outlet end is determined based on the gas pressure value of the outlet end. If the gas pressure falling rate of the outlet end is higher than the set falling threshold, it is determined that the height adjustment valve to be tested is faulty.

[0033] In actual application, the scheme of the application can also detect the pressure relief process of the to-be-tested height adjustment valve. Specifically, the pressure relief process of the to-be-tested height adjustment valve can be simulated. In actual application, the set speed of pressure relief can be multiple, for example, 100 liters per minute, 300 liters per minute, 500 liters per minute, and the like. That is to say, the to-be-tested height adjustment valve can be tested at different pressure relief speeds in the embodiment, so as to meet the testing requirements of different working conditions. In implementation, if the to-be-tested height adjustment valve is fault-free, the air pressure drop rate of the air outlet end should be stable and substantially equivalent to the preset pressure relief speed. If the air pressure drop rate deviates from the set drop threshold obviously, it can be determined that the to-be-tested height adjustment valve is faulty.

[0034] In the example embodiment, the testing method of the height adjustment valve of the train air spring further includes: When the air pressure of the air outlet end of the to-be-tested height adjustment valve is stable, vibration is applied to the to-be-tested height adjustment valve at a set frequency, and the air pressure value of the air outlet end of the to-be-tested height adjustment valve is collected in real time; If the air pressure value of the air outlet end fluctuates, it is determined that the to-be-tested height adjustment valve is faulty.

[0035] In the embodiment, vibration is applied to the to-be-tested height adjustment valve, so as to simulate the train driving process. That is to say, the scheme of the embodiment can test the stability of the to-be-tested height adjustment valve in the train driving process. If the to-be-tested height adjustment valve is fault-free, the air outlet end thereof should have no air pressure value fluctuation in the train driving process. If the air pressure value fluctuation occurs, it indicates that the to-be-tested height adjustment valve can be faulty.

[0036] In the example embodiment, the testing method of the height adjustment valve of the train air spring further includes: When the air pressure of the air outlet end of the to-be-tested height adjustment valve is stable, the height adjustment valve is controlled to generate a set length of displacement within a set time length, and the air pressure value of the air outlet end of the to-be-tested height adjustment valve is collected in real time; Based on the air pressure value of the air outlet end, the air pressure change value of the air outlet end is determined; If the air pressure change value of the air outlet end exceeds a set air pressure change range, it is determined that the to-be-tested height adjustment valve is faulty.

[0037] In the embodiment, the actual simulation is that a person or a heavy object suddenly moves to a position in the train driving process. The sudden lifting and lowering of the to-be-tested height adjustment valve can be simulated, so as to simulate the above working condition. In implementation, a gas pump can be used to simulate the sudden lifting and lowering of the to-be-tested height adjustment valve. For example, a stroke of 5 millimeters can be realized within 0.05 seconds, that is, the simulation of sudden lifting and lowering is realized.

[0038] The test system of the height adjustment valve of the train air spring provided by the present application is described below, and the test system of the height adjustment valve of the train air spring described below can be correspondingly referred to the test method of the height adjustment valve of the train air spring described above.

[0039] Figure 3 FIG. 1 is a structural schematic diagram of the test system of the height adjustment valve of the train air spring provided by an embodiment of the present application.

[0040] As shown in FIG. 1, the test system of the height adjustment valve of the train air spring provided by the present embodiment comprises: Figure 3 a gas pressure acquisition module 301 configured to acquire a gas pressure value of an outlet end of a height adjustment valve to be tested in real time after a specific gas pressure is input to an inlet end of the height adjustment valve to be tested; a gas pressure calculation module 302 configured to determine a gas pressure rising rate of the outlet end based on the gas pressure value of the outlet end; a fault test module 303 configured to determine that the height adjustment valve to be tested is faulty when the gas pressure rising rate is lower than a set rising threshold. In an exemplary embodiment, the gas pressure acquisition module 301 is further configured to:

[0041] adjust an opening degree of the height adjustment valve to be tested; input the specific gas pressure to the height adjustment valve to be tested through the inlet end at different opening degrees, and acquire the gas pressure value of the outlet end of the height adjustment valve to be tested. In an exemplary embodiment, the gas pressure acquisition module 301 is further configured to:

[0042] connect the outlet end of the height adjustment valve to be tested and a gas tank through a flow-limiting pipe; acquire a gas pressure change of the gas tank to represent the gas pressure value of the outlet end of the height adjustment valve to be tested. In an exemplary embodiment, an even pressure releasing structure is arranged at one end of the flow-limiting pipe close to the gas tank, for preventing negative pressure.

[0043] In an exemplary embodiment, the even pressure releasing structure comprises a funnel mouth and / or even holes.

[0044] In an exemplary embodiment, the test system further comprises a pressure relief test module, which is specifically configured to:

[0045] relieve pressure of the height adjustment valve to be tested at a set speed after the gas pressure of the outlet end of the height adjustment valve to be tested is stable, and acquire the gas pressure value of the outlet end of the height adjustment valve to be tested in real time; determine a gas pressure falling rate of the outlet end based on the gas pressure value of the outlet end; ​If the rate of decrease in air pressure at the outlet is higher than the set threshold, the height adjustment valve under test is determined to be faulty.

[0046] In an exemplary embodiment, a vibration testing module is also included, which is specifically used for: Once the air pressure at the outlet of the height adjustment valve under test stabilizes, vibration is applied to the height adjustment valve under test at a set frequency, and the air pressure value at the outlet of the height adjustment valve under test is collected in real time. If the air pressure at the outlet fluctuates, the height adjustment valve under test is determined to be faulty.

[0047] In an exemplary embodiment, a lifting test module is also included, which is specifically used for: Once the air pressure at the outlet of the height adjustment valve under test stabilizes, the height adjustment valve is controlled to produce a displacement of a set length within a set time period, and the air pressure value at the outlet of the height adjustment valve under test is collected in real time. Based on the air pressure value at the outlet, determine the air pressure change value at the outlet; If the air pressure change at the outlet exceeds the set air pressure change range, the height adjustment valve under test is determined to be faulty.

[0048] The specific implementation method of the test system for the height adjustment valve of the train air spring provided in this embodiment can be implemented with reference to the above embodiment, and will not be repeated here.

[0049] Figure 4 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 4 As shown, the electronic device may include: a processor 410, a communication interface 420, a memory 430, and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 communicate with each other via the communication bus 440. The processor 410 can call logic instructions in the memory 430 to execute a test method for the height adjustment valve of the train air spring, the method including: After a specific pressure of gas is input into the inlet of the height adjustment valve to be tested, the pressure value at the outlet of the height adjustment valve to be tested is collected in real time. Based on the air pressure value at the outlet, determine the air pressure rise rate at the outlet. If the rate of increase of air pressure is lower than the set rise threshold, the height adjustment valve under test is determined to be faulty.

[0050] Moreover, the logic instructions in the memory 430 described above can be implemented in the form of software functional units and sold or used as independent products, and can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the parts that contribute to the prior art or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods of the embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0051] In another aspect, the present application also provides a computer program product, which comprises a computer program, the computer program can be stored on a non-transitory computer readable storage medium, and the computer program is executed by a processor, so that the computer can execute the test method of the height adjustment valve of the train air spring provided by the above-mentioned methods, and the method comprises: After inputting a gas with a specific air pressure into the air inlet end of the height adjustment valve to be tested, the air pressure value of the air outlet end of the height adjustment valve to be tested is collected in real time; Based on the air pressure value of the air outlet end, the air pressure rising rate of the air outlet end is determined; When the air pressure rising rate is lower than the set rising threshold, it is determined that the height adjustment valve to be tested is faulty.

[0052] In another aspect, the present application also provides a non-transitory computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the test method of the height adjustment valve of the train air spring provided by the above-mentioned methods, and the method comprises: After inputting a gas with a specific air pressure into the air inlet end of the height adjustment valve to be tested, the air pressure value of the air outlet end of the height adjustment valve to be tested is collected in real time; Based on the air pressure value of the air outlet end, the air pressure rising rate of the air outlet end is determined; When the air pressure rising rate is lower than the set rising threshold, it is determined that the height adjustment valve to be tested is faulty.

[0053] The device embodiments described above are merely illustrative, wherein the units illustrated as separate components can or can not be physically separated, and the components illustrated as units can or can not be physical units, i.e., can be located in one place, or can be distributed to multiple network units. Part or all of the modules can be selected to achieve the purposes of the embodiments according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0054] Through the description of the above embodiments, those skilled in the art can clearly understand that the embodiments can be realized by means of software and the necessary general hardware platform, and of course can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of software products, and the computer software products can be stored in a computer readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and include a plurality of instructions for making a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods of the embodiments or some parts of the embodiments.

[0055] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of testing a height adjustment valve of a train air spring, characterized by, The method comprises the following steps: After inputting gas with a specific pressure into the air inlet end of the height adjustment valve to be tested, collecting the gas pressure value of the air outlet end of the height adjustment valve to be tested in real time; Based on the gas pressure value of the air outlet end, determining the gas pressure rising rate of the air outlet end; When the gas pressure rising rate is lower than the set rising threshold, determining that the height adjustment valve to be tested is faulty.

2. The method of testing a height adjustment valve of a train air spring of claim 1, wherein, The step of collecting the gas pressure value of the air outlet end of the height adjustment valve to be tested comprises the following steps: Adjusting the opening degree of the height adjustment valve to be tested; Inputting gas with a specific pressure into the height adjustment valve to be tested through the air inlet end under different opening degrees, and collecting the gas pressure value of the air outlet end of the height adjustment valve to be tested.

3. The method of testing a height control valve of a train air spring according to claim 1 or 2, characterized in that, The step of collecting the gas pressure value of the air outlet end of the height adjustment valve to be tested comprises the following steps: Connecting the air outlet end of the height adjustment valve to be tested with a gas tank through a flow-limiting pipe; Collecting the gas pressure change of the gas tank to represent the gas pressure value of the air outlet end of the height adjustment valve to be tested.

4. The method of testing a height adjustment valve of a train air spring of claim 3, wherein, The flow-limiting pipe is provided with a uniform pressure releasing structure at one end close to the gas tank, which is used for preventing negative pressure.

5. The method of testing a height adjustment valve of a train air spring of claim 3, wherein, The uniform pressure releasing structure comprises a funnel mouth and / or a uniform hole.

6. The method of testing a height adjustment valve of a train air spring of claim 1, wherein, The method further comprises the following steps: After the gas pressure of the air outlet end of the height adjustment valve to be tested is stabilized, depressurizing the height adjustment valve to be tested at a set speed, and collecting the gas pressure value of the air outlet end of the height adjustment valve to be tested in real time; Based on the gas pressure value of the air outlet end, determining the gas pressure falling rate of the air outlet end; If the gas pressure falling rate of the air outlet end is higher than the set falling threshold, determining that the height adjustment valve to be tested is faulty.

7. The method of testing a height adjustment valve of a train air spring of claim 1, wherein, The method further comprises the following steps: After the gas pressure of the air outlet end of the height adjustment valve to be tested is stabilized, applying vibration to the height adjustment valve to be tested at a set frequency, and collecting the gas pressure value of the air outlet end of the height adjustment valve to be tested in real time; If the gas pressure value of the air outlet end fluctuates, determining that the height adjustment valve to be tested is faulty.

8. The method of testing a height adjustment valve of a train air spring of claim 1, wherein, The method further comprises the following steps: After the gas pressure of the air outlet end of the height adjustment valve to be tested is stabilized, controlling the height adjustment valve to be tested to generate a displacement with a set length within a set time length, and collecting the gas pressure value of the air outlet end of the height adjustment valve to be tested in real time; Based on the gas pressure value of the air outlet end, determining the gas pressure change value of the air outlet end; If the gas pressure change value of the air outlet end exceeds the set gas pressure change range, determining that the height adjustment valve to be tested is faulty.

9. A testing system for a height adjustment valve of a train air spring, applied to the testing method for a height adjustment valve of a train air spring according to any one of claims 1 to 8, characterized in that, The method comprises the following steps: A gas pressure collecting module is configured to collect the gas pressure value of the air outlet end of the height adjustment valve to be tested in real time after inputting gas with a specific pressure into the air inlet end of the height adjustment valve to be tested; A gas pressure calculating module is configured to determine the gas pressure rising rate of the air outlet end based on the gas pressure value of the air outlet end; A fault testing module is configured to determine that the height adjustment valve to be tested is faulty when the gas pressure rising rate is lower than the set rising threshold.

10. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the program to implement the test method of the height adjustment valve of the train air spring as claimed in any one of claims 1-8.

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