Test method and device for stop valve of fuel cell engine, vehicle and medium

Abstract

The invention relates to the technical field of vehicle part testing, in particular to a stop valve testing method and device of a fuel cell engine, a vehicle and a medium, and the method utilizes a stop valve testing system. When the air compression piece, the humidity acquisition piece, the temperature acquisition piece, the flow acquisition piece and the first pressure acquisition piece all meet the test parameters, starting to accumulate the test duration of the tested stop valve; if the test duration reaches the preset test duration, a closing instruction is sent to the tested stop valve and the auxiliary stop valve, and if the first duration in which the tested stop valve is not in the closed state is larger than the first preset duration, it is judged that the tested stop valve is in the first fault state. Therefore, the problem that the stop performance, the reliability and the service life of an existing stop valve need to be verified is solved, and the performance, the reliability and other dimensions of the stop valve are tested by accurately controlling the pressure, the temperature and the like of the gas introduced into the stop valve.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle component testing, and in particular to a method, device, vehicle and medium for testing a shut-off valve of a fuel cell engine. Background Art

[0002] With the deterioration of the global environment and the intensification of climate change, countries have gradually announced the time to ban the sale of fuel vehicles, and new energy vehicles are gradually becoming historical. Hydrogen fuel cell vehicles have gradually gained attention from various countries due to their advantages such as zero emissions, fast hydrogen refueling and long driving range, and have become one of the important development directions in the field of new energy vehicles in the future.

[0003] Proton Exchange Membrane Fuel Cell (PEMFC) is a widely used automotive fuel cell technology. Its working principle is to use the air at the anode and the hydrogen at the cathode to react chemically under the action of the catalyst in the membrane electrode to generate electricity. In order to prevent the oxygen at the cathode from penetrating into the anode through the proton exchange membrane after the reaction, causing the formation of a hydrogen-oxygen interface and thus damaging the life of the stack, it is necessary to cut off the inlet and outlet of the fuel cell cathode through a stop valve after purging. Therefore, in fuel cell engines, the stop valve plays a vital role.

[0004] However, existing stop valve products have certain uncertainties in terms of sealing, reliability and service life. Their performance and life have yet to be verified and need to be urgently resolved. Summary of the invention

[0005] The present application provides a method, device, vehicle and medium for testing the shut-off valve of a fuel cell engine to solve the problem that the shut-off performance, reliability and life of the existing shut-off valve need to be verified. By accurately controlling the pressure and temperature of the gas entering the shut-off valve, the performance, reliability and other dimensions of the shut-off valve can be tested.

[0006] The first aspect of the present application provides a shut-off valve test method for a fuel cell engine, the method using a shut-off valve test system, the shut-off valve test system comprising an air compressor, a humidity collection component, a temperature collection component, a flow collection component, a first pressure collection component, a shut-off valve to be tested, a second pressure collection component and an auxiliary shut-off valve connected in sequence, wherein the method comprises the following steps:

[0007] Acquire the test requirements of the stop valve under test, wherein the test requirements include test parameters;

[0008] The stop valve test system is adjusted based on the test requirements, and when the air pressure component, the humidity collection component, the temperature collection component, the flow collection component and the first pressure collection component all meet the test parameters, the test time of the stop valve under test is accumulated;

[0009] If the test duration reaches the preset test duration, a closing command is sent to the tested stop valve and the auxiliary stop valve. If the first continuous time during which the tested stop valve is not in the closed state is greater than the first preset time, it is determined that the tested stop valve is in the first fault state.

[0010] According to one embodiment of the present application, after sending the closing instruction to the tested stop valve and the auxiliary stop valve, the method further includes:

[0011] If the auxiliary stop valve and the measured stop valve are both in the closed state, when the second duration of the measured stop valve being in the closed state is greater than a second preset duration, the pressure collected by the second pressure collecting component is obtained;

[0012] If the pressure collected by the second pressure collecting component meets the preset pressure condition, it is determined that the tested stop valve is in a normal state; otherwise, it is determined that the tested stop valve is in a second fault state.

[0013] According to an embodiment of the present application, after determining that the tested stop valve is in the first fault state, or determining that the tested stop valve is in the second fault state, the method further includes:

[0014] generating first fault information based on the first fault state, or generating second fault information based on the second fault state;

[0015] A fault reminder is issued according to the first fault information or the second fault information.

[0016] According to one embodiment of the present application, after determining that the tested stop valve is in a normal state, the method further includes:

[0017] Determine whether there is a new test requirement for the tested stop valve;

[0018] If there is a new test requirement for the tested stop valve, the step of adjusting the stop valve test system based on the test requirement is re-executed.

[0019] According to one embodiment of the present application, after determining that the tested stop valve is not in the closed state, the method further includes:

[0020] If the closing time of the tested stop valve is less than or equal to the first preset time length, the step of sending a closing instruction to the tested stop valve and the auxiliary stop valve is re-executed.

[0021] According to the shutoff valve test method for a fuel cell engine provided in an embodiment of the present application, the shutoff valve test system is adjusted based on the test requirements, and when the air compressor, humidity collection component, temperature collection component, flow collection component and first pressure collection component all meet the test parameters, the test time of the shutoff valve under test begins to be accumulated; when the test time reaches the preset test time, a closing instruction is sent to the shutoff valve under test and the auxiliary shutoff valve, and when the first continuous time length of the shutoff valve under test not being in the closed state is greater than the first preset time length, the shutoff valve under test is determined to be in the first fault state. Thus, the problem that the shutoff performance, reliability and life of the existing shutoff valve need to be verified is solved, and by accurately controlling the pressure and temperature of the gas entering the shutoff valve, the performance, reliability and other dimensions of the shutoff valve are tested.

[0022] The second aspect of the present application provides a shut-off valve test device for a fuel cell engine, wherein the device uses a shut-off valve test system, wherein the shut-off valve test system includes an air compressor, a humidity collection component, a temperature collection component, a flow collection component, a first pressure collection component, a shut-off valve to be tested, a second pressure collection component, and an auxiliary shut-off valve connected in sequence, wherein the device includes:

[0023] An acquisition module, used for acquiring the test requirements of the tested stop valve, wherein the test requirements include test parameters;

[0024] an adjustment module, configured to adjust the stop valve test system based on the test requirements, and start accumulating the test time of the stop valve under test when the air compressor, the humidity collection component, the temperature collection component, the flow collection component and the first pressure collection component all meet the test parameters;

[0025] The test module is used to send a closing instruction to the tested stop valve and the auxiliary stop valve if the test duration reaches a preset test duration, and to determine that the tested stop valve is in a first fault state if the first continuous time during which the tested stop valve is not in a closed state is greater than a first preset time.

[0026] According to one embodiment of the present application, after sending the closing instruction to the tested stop valve and the auxiliary stop valve, the testing module is further used to:

[0027] If the auxiliary stop valve and the measured stop valve are both in the closed state, when the second duration of the measured stop valve being in the closed state is greater than a second preset duration, the pressure collected by the second pressure collecting component is obtained;

[0028] If the pressure collected by the second pressure collecting component meets the preset pressure condition, it is determined that the tested stop valve is in a normal state; otherwise, it is determined that the tested stop valve is in a second fault state.

[0029] According to one embodiment of the present application, after determining that the tested stop valve is in the first fault state, or determining that the tested stop valve is in the second fault state, the testing module is further used to:

[0030] generating first fault information based on the first fault state, or generating second fault information based on the second fault state;

[0031] A fault reminder is issued according to the first fault information or the second fault information.

[0032] According to one embodiment of the present application, after determining that the tested stop valve is in a normal state, the testing module is further used to:

[0033] Determine whether there is a new test requirement for the tested stop valve;

[0034] If there is a new test requirement for the tested stop valve, the step of adjusting the stop valve test system based on the test requirement is re-executed.

[0035] According to one embodiment of the present application, after determining that the tested stop valve is not in the closed state, the testing module is further used to:

[0036] If the closing time of the tested stop valve is less than or equal to the first preset time length, the step of sending a closing instruction to the tested stop valve and the auxiliary stop valve is re-executed.

[0037] According to the shutoff valve test device for the fuel cell engine provided by the embodiment of the present application, the shutoff valve test system is adjusted based on the test requirements, and when the air compressor, humidity collection component, temperature collection component, flow collection component and first pressure collection component all meet the test parameters, the test time of the shutoff valve under test begins to be accumulated; when the test time reaches the preset test time, a closing instruction is sent to the shutoff valve under test and the auxiliary shutoff valve, and when the first continuous time length of the shutoff valve under test not being in the closed state is greater than the first preset time length, it is determined that the shutoff valve under test is in the first fault state. Thus, the problem that the shutoff performance, reliability and life of the existing shutoff valve need to be verified is solved, and by accurately controlling the pressure and temperature of the gas entering the shutoff valve, the performance, reliability and other dimensions of the shutoff valve can be tested.

[0038] A third aspect of the present application provides a vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the shut-off valve testing method for a fuel cell engine as described in the above embodiment.

[0039] A fourth aspect of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the shut-off valve testing method for a fuel cell engine as described in the above embodiment.

[0040] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0042] Figure 1 It is a structural schematic diagram of a stop valve testing system according to an embodiment of the present application;

[0043] Figure 2 A flowchart of a shut-off valve testing method for a fuel cell engine provided according to an embodiment of the present application;

[0044] Figure 3 A flowchart of a shut-off valve testing method for a fuel cell engine according to an embodiment of the present application;

[0045] Figure 4 Schematic diagram of a block diagram of a shut-off valve testing device for a fuel cell engine according to an embodiment of the present application;

[0046] Figure 5 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application.

[0047] Figure markings: 10-stop valve test system, 101-air filter, 102-air compressor, 103-intercooler, 104-humidifier, 105-humidity sensor, 106-temperature sensor, 107-air flow meter, 108-first pressure sensor, 109-tested stop valve, 110-second pressure sensor, 111-flow resistance regulator, 112-auxiliary stop valve, 113-back pressure valve; 20-stop valve test device for fuel cell engine, 100-acquisition module, 200-adjustment module, 300-test module; 501-memory, 502-processor, 503-communication interface. DETAILED DESCRIPTION

[0048] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0049] The shutoff valve testing method, device, vehicle and medium of a fuel cell engine according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0050] Before introducing the shut-off valve testing method for a fuel cell engine according to an embodiment of the present application, the shut-off valve testing system involved in the shut-off valve testing method for a fuel cell engine according to the present application is first introduced.

[0051] Specifically, if Figure 1 As shown, the stop valve test system includes an air compressor, a humidity collection component, a temperature collection component, a flow collection component, a first pressure collection component, a stop valve to be tested, a second pressure collection component and an auxiliary stop valve which are connected in sequence.

[0052] For example, the stop valve testing system of the present application embodiment can be as follows: Figure 1 The stop valve test system 10 shown includes an air filter 101, an air compressor 102, an intercooler 103, a humidifier 104, a humidity sensor 105, a temperature sensor 106, an air flow meter 107, a first pressure sensor 108, a stop valve to be tested 109, a second pressure sensor 110, a flow resistance regulator 111, an auxiliary stop valve 112, a back pressure valve 113, an intake pipe and an exhaust pipe, etc., and the above components are all located in an environmental chamber with adjustable temperature, pressure and humidity.

[0053] Among them, the air filter 101 is used to filter the air entering the shut-off valve 109 to be tested. The air filter 101 has a physical filtering function and optionally a chemical filtering function; the air compressor 102 is used to provide a specified flow of air to the shut-off valve 109 to be tested by adjusting the speed after receiving the command of the controller; the intercooler 103 is used to cool the high-temperature gas pressurized by the air compressor 102, and can ensure the temperature of the gas entering the shut-off valve 109 to be tested according to the test requirements; the humidifier 105 is used to humidify the gas, which can ensure the humidity of the gas entering the shut-off valve 109 to be tested, and the humidity sensor 105, the temperature sensor 106, the air flow meter 107 and the first pressure sensor 108 are respectively used to measure whether the humidity, temperature, flow and pressure of the gas entering the shut-off valve 109 to meet the test requirements. The second pressure sensor 110 is used to measure the pressure of the cut-off pipeline, and the flow resistance regulator 111 is used to adjust the flow resistance between the auxiliary stop valve 112 and the cut-off valve 109 to simulate the actual environment, so that the test effect is more real and reliable. The present application can set the flow resistance of the flow resistance regulator 111 according to the different requirements of the system to meet the different test requirements of the system. The auxiliary stop valve 112 is used to close the auxiliary stop valve 112 when the cut-off valve 109 to be tested is closed, thereby ensuring that the tested pipeline is closed. The back pressure valve 113 is used to adjust the back pressure of the pipeline. The back pressure valve 113 and the air compressor 102 jointly provide the pressure required by the pipeline for the cut-off valve 109 to be tested.

[0054] Therefore, by placing the stop valve test system proposed in this application into an environmental chamber with adjustable ambient temperature, humidity, and air pressure, a multi-condition test of a fuel cell engine coupled with multiple states such as high temperature, low temperature, high humidity, low humidity, low air pressure, and high air pressure can be realized, and the test dimension is more comprehensive. By accurately controlling the pressure, temperature, humidity, and flow rate of the gas introduced into the stop valve, the working environment of the stop valve of the air supply subsystem of the fuel cell engine can be highly simulated, so as to test and verify the performance, reliability, durability, and life of the stop valve under test. The test components are simple, small in size, easy to build, convenient and fast, and the test effect is good and the reliability is high.

[0055] The following is an introduction to the shutoff valve testing method for a fuel cell engine using the shutoff valve testing system proposed in the present application.

[0056] It is understandable that the shutoff valve is one of the essential parts of the fuel cell engine. After the fuel cell is purged and the oxygen consumption process is completed, the shutoff valve can shut off the inlet and outlet of the cathode of the fuel cell engine to prevent new oxygen from entering the cathode of the fuel cell engine and then diffusing to the anode to produce a hydrogen-oxygen interface, causing corrosion of the fuel cell catalyst and damaging the fuel cell life. However, the shutoff performance, reliability, and life of the existing shutoff valves on the market need to be verified, so the present invention designs a test device and a test method to test the performance, reliability, and life of the shutoff valve.

[0057] Specifically, Figure 2 A schematic flow chart of a method for testing a shut-off valve of a fuel cell engine provided in an embodiment of the present application.

[0058] like Figure 2 As shown, the shut-off valve testing method of the fuel cell engine comprises the following steps:

[0059] In step S201, the test requirements of the stop valve under test are obtained, wherein the test requirements include test parameters, such as pressure, temperature, humidity, flow rate and other parameters of the gas input into the stop valve under test.

[0060] Specifically, the embodiments of the present application can obtain the test requirements of the stop valve under test by means of user input, preset test schemes or automatic reading from the stop valve test system, that is, determine the closing and opening time of the stop valve under test and the pressure, temperature, humidity, flow rate and other parameters of the gas input into the stop valve under test.

[0061] In step S202, the stop valve test system is adjusted based on the test requirements, and when the air compression component, humidity collection component, temperature collection component, flow collection component and first pressure collection component all meet the test parameters, the test time of the stop valve under test is accumulated.

[0062] Specifically, according to the test requirements, instructions are sent through the controller to the air compressor, humidity collection component, temperature collection component, flow collection component, first pressure collection component and other components in the stop valve test system, and the working states of the air compressor, humidity collection component, temperature collection component, flow collection component, first pressure collection component and other components in the stop valve test system are adjusted, such as adjusting the air compressor speed, intercooler temperature setting, humidifier humidity setting, etc., to ensure that the stop valve test system can output gas parameters that meet the test requirements.

[0063] Furthermore, the data fed back by each component is monitored in real time. When the output parameters of all relevant components in the stop valve test system meet the test parameters, it is determined that the current stop valve test system has reached a stable state. From this point on, the test time of the stop valve under test is accumulated for subsequent performance evaluation.

[0064] Optionally, the embodiment of the present application can accumulate the test time of the tested stop valve by a timer, and can also accumulate the test time of the tested stop valve by other methods in the prior art, which is not specifically limited here.

[0065] In step S203, if the test duration reaches the preset test duration, a closing instruction is sent to the tested stop valve and the auxiliary stop valve. If the first continuous time that the tested stop valve is not in the closed state is greater than the first preset time, it is determined that the tested stop valve is in the first fault state.

[0066] The preset test duration may be a test duration preset by a person skilled in the art, and is not specifically limited here. The first duration refers to the time from when the closing instruction is sent to when the tested stop valve is actually closed, and the first fault state may be a response fault state.

[0067] Specifically, when the test duration reaches the preset test duration, the controller sends a closing command to the stop valve under test and the auxiliary stop valve. At this time, the auxiliary stop valve is in a closed state, and it is determined whether the stop valve under test is in a closed state. If the stop valve under test is in an open state and the first continuous time for which the stop valve under test is not in a closed state is greater than the first preset time, it means that the stop valve under test responds too slowly or the stop valve under test cannot be closed. Therefore, it is determined that the stop valve under test is in a first fault state, that is, the stop valve under test is in a response fault state.

[0068] Further, in some embodiments, after determining that the tested stop valve is not in a closed state, it also includes: if the closing time of the tested stop valve is less than or equal to the first preset time length, re-execute the step of sending a closing instruction to the tested stop valve and the auxiliary stop valve.

[0069] The first preset duration may be a duration preset by a person skilled in the art and is not specifically limited here.

[0070] Specifically, if the closing time of the tested stop valve is less than or equal to the first preset time, although the tested stop valve is still not closed, it will not be immediately determined as a fault, but the step of sending the closing command to the tested stop valve and the auxiliary stop valve will be re-executed. By re-executing the closing command, the tested stop valve is provided with an additional opportunity to try to close, which helps to eliminate the closing failure caused by accidental factors (such as mechanical jamming, etc.).

[0071] In practical applications, an additional preset time length may be set to perform more detailed control on the embodiment of the present application. For example, assuming that the first preset time length is 10 seconds, the embodiment of the present application may re-execute the step of sending a closing instruction to the tested stop valve and the auxiliary stop valve when the closing time of the tested stop valve is greater than 6 seconds and the closing time of the tested stop valve is less than 10 seconds.

[0072] Furthermore, in some embodiments, after sending a closing command to the shut-off valve under test and the auxiliary shut-off valve, it also includes: if the auxiliary shut-off valve and the shut-off valve under test are both in a closed state, then when the second continuous time length of the shut-off valve under test being in the closed state is greater than the second preset time length, obtaining the pressure collected by the second pressure collecting component; if the pressure collected by the second pressure collecting component meets the preset pressure condition, it is determined that the shut-off valve under test is in a normal state; otherwise, it is determined that the shut-off valve under test is in a second fault state.

[0073] The second preset duration may be a duration preset by a person skilled in the art, and the preset pressure condition may be a pressure condition preset by a person skilled in the art, or may be a pressure condition obtained through a limited number of experiments, or may be a pressure condition obtained through computer simulation, which is not specifically limited here. The second fault state may be a leakage fault state. The second duration refers to the length of time the shut-off valve being tested is in a closed state.

[0074] Specifically, if the auxiliary stop valve and the stop valve under test are both closed within the preset specified time, the closed state of the stop valve under test is maintained and stabilized for a period of time (i.e., the second duration). This time can be determined according to the input test working condition requirements. Until the second duration of the stop valve under test being in the closed state is greater than the second preset duration, the pressure of the cut-off pipeline collected by the second pressure collection component is obtained, and it is determined whether the pressure of the cut-off pipeline collected by the second pressure collection component meets the preset pressure condition.

[0075] If the pressure of the cut-off pipeline collected by the second pressure collection component meets the preset pressure condition, it means that the cut-off valve under test has not leaked, and the cut-off valve under test is judged to be in a normal state. If the pressure of the cut-off pipeline collected by the second pressure collection component does not meet the preset pressure condition, such as the pressure rises too fast, it is judged that the cut-off valve under test is in the second fault state, that is, the cut-off valve under test is in a leakage fault state.

[0076] Furthermore, in some embodiments, after determining that the stop valve under test is in a normal state, it also includes: determining whether there is a new test requirement for the stop valve under test; if there is a new test requirement for the stop valve under test, re-executing the step of adjusting the stop valve test system based on the test requirement.

[0077] It is understandable that if the tested stop valve is judged to be in a normal state, it means that the tested stop valve has passed the current test. However, in actual applications, more tests may be required on the stop valve to evaluate its performance under different conditions. Therefore, it is necessary to determine whether there are new test requirements for the tested stop valve to further verify the performance of the stop valve.

[0078] Specifically, if there are new testing requirements for the stop valve under test, the steps of adjusting the stop valve testing system based on the testing requirements are re-executed, that is, the new testing requirements are obtained, and the stop valve testing system is adjusted based on the new testing requirements, such as adjusting the working status of the air compressor, humidity collection component, temperature collection component, flow collection component and the first pressure collection component to meet the new test parameters.

[0079] Further, if there is no new test requirement for the tested stop valve, the test is terminated.

[0080] Furthermore, in some embodiments, after determining that the tested stop valve is in a first fault state, or determining that the tested stop valve is in a second fault state, it also includes: generating first fault information based on the first fault state, or generating second fault information based on the second fault state; and providing a fault reminder based on the first fault information, or the second fault information.

[0081] Specifically, the reminder method of the present application can be to control the acoustic reminder device to emit an alarm sound, such as a beeping sound, or a voice broadcast, such as "the current tested stop valve is in a response fault state" or "the current tested stop valve is in a leakage fault state", etc. Reminders can also be made through an optical reminder device, such as flashing an indicator light, etc. The flashing type can be set in advance to correspond to the situation.

[0082] In the specific implementation process, when a fault reminder is given according to the first fault information or the second fault information, the reminder may be given only through an acoustic reminder device or an optical reminder device, or may be given through both the acoustic reminder device and the optical reminder device at the same time, without limitation.

[0083] In order to facilitate those skilled in the art to more clearly and intuitively understand the shut-off valve testing method for the fuel cell engine of the embodiment of the present application, the following is combined with Figure 3 Provide detailed explanation.

[0084] like Figure 3 The shut-off valve testing method of the fuel cell engine comprises the following steps:

[0085] S301, start.

[0086] S302, input the test conditions of the stop valve to the test bench.

[0087] S303, clarify the air compressor speed and time requirements, clarify the input of the front and rear end temperature and humidity requirements of the measured stop valve, and clarify the opening and closing time requirements of the measured stop valve.

[0088] S304, the test bench provides the air compressor speed, temperature, humidity, flow rate and pressure required for the stop valve under test as required.

[0089] S305, the controller issues a shut-off valve closing instruction.

[0090] S306, the auxiliary stop valve in the test bench is closed.

[0091] S307, determine whether the tested stop valve is closed, if yes, execute S310, otherwise, execute S308.

[0092] S308, determine whether the closing time of the tested stop valve is greater than T0, if yes, execute S309, otherwise, execute S305.

[0093] S309, outputting the response failure of the stop valve under test.

[0094] S310, keep the shut-off valve under test closed.

[0095] S311, determine whether the duration of the closing of the tested stop valve is greater than T1, if so, execute S312, otherwise, execute S310.

[0096] S312, obtaining the pressure value collected by the second pressure collecting component.

[0097] S313, determine whether the pressure value collected by the second pressure collection component meets the requirements, if yes, execute S315, otherwise, execute S314.

[0098] S314, output the leakage fault of the stop valve under test.

[0099] S315, determining whether the shut-off valve under test receives a new target test requirement, if yes, executing S302, otherwise, executing S316.

[0100] S316, end.

[0101] According to the shutoff valve test method for a fuel cell engine proposed in the embodiment of the present application, the shutoff valve test system is adjusted based on the test requirements, and when the air compressor, humidity collection component, temperature collection component, flow collection component and first pressure collection component all meet the test parameters, the test time of the shutoff valve under test begins to be accumulated; when the test time reaches the preset test time, a closing instruction is sent to the shutoff valve under test and the auxiliary shutoff valve, and when the first continuous time when the shutoff valve under test is not in the closed state is greater than the first preset time, the shutoff valve under test is determined to be in the first fault state. Thus, the problem that the shutoff performance, reliability and life of the existing shutoff valve need to be verified is solved, and by accurately controlling the pressure and temperature of the gas entering the shutoff valve, the performance, reliability and other dimensions of the shutoff valve can be tested.

[0102] Next, the shut-off valve testing device for a fuel cell engine proposed in accordance with an embodiment of the present application will be described with reference to the accompanying drawings.

[0103] Figure 4 It is a block diagram of a shut-off valve testing device for a fuel cell engine according to an embodiment of the present application.

[0104] In this embodiment, the device utilizes a stop valve testing system, which includes an air compressor, a humidity collection component, a temperature collection component, a flow collection component, a first pressure collection component, a stop valve to be tested, a second pressure collection component and an auxiliary stop valve connected in sequence.

[0105] like Figure 4 As shown, the shut-off valve testing device 20 of the fuel cell engine includes: an acquisition module 100 , a regulation module 200 and a testing module 300 .

[0106] Among them, the acquisition module 100 is used to obtain the test requirements of the stop valve under test, wherein the test requirements include test parameters; the adjustment module 200 is used to adjust the stop valve test system based on the test requirements, and start accumulating the test time of the stop valve under test when the air compressor, humidity collection component, temperature collection component, flow collection component and first pressure collection component all meet the test parameters; the test module 300 is used to send a closing command to the stop valve under test and the auxiliary stop valve if the test time reaches the preset test time, and if the first continuous time that the stop valve under test is not in the closed state is greater than the first preset time, it is determined that the stop valve under test is in the first fault state.

[0107] Furthermore, in some embodiments, after sending a closing command to the shut-off valve under test and the auxiliary shut-off valve, the test module 300 is also used to: if the auxiliary shut-off valve and the shut-off valve under test are both in a closed state, then when the second continuous time length of the shut-off valve under test being in the closed state is greater than the second preset time length, obtain the pressure collected by the second pressure collection component; if the pressure collected by the second pressure collection component meets the preset pressure condition, then it is determined that the shut-off valve under test is in a normal state; otherwise, it is determined that the shut-off valve under test is in a second fault state.

[0108] Further, in some embodiments, after determining that the tested stop valve is in a first fault state, or determining that the tested stop valve is in a second fault state, the test module 300 is also used to: generate first fault information based on the first fault state, or generate second fault information based on the second fault state; and provide a fault reminder based on the first fault information, or the second fault information.

[0109] Furthermore, in some embodiments, after determining that the shutoff valve under test is in a normal state, the test module 300 is also used to: determine whether there is a new test requirement for the shutoff valve under test; if there is a new test requirement for the shutoff valve under test, re-execute the step of adjusting the shutoff valve test system based on the test requirement.

[0110] Further, in some embodiments, after determining that the tested stop valve is not in a closed state, the test module 300 is also used to: if the closing time of the tested stop valve is less than or equal to a first preset time length, re-execute the step of sending a closing command to the tested stop valve and the auxiliary stop valve.

[0111] It should be noted that the above explanations of the embodiment of the shut-off valve testing method for a fuel cell engine are also applicable to the shut-off valve testing device for a fuel cell engine of this embodiment, and will not be repeated here.

[0112] According to the shutoff valve test device for the fuel cell engine proposed in the embodiment of the present application, the shutoff valve test system is adjusted based on the test requirements, and when the air compressor, humidity collection component, temperature collection component, flow collection component and first pressure collection component all meet the test parameters, the test time of the shutoff valve under test begins to be accumulated; when the test time reaches the preset test time, a closing instruction is sent to the shutoff valve under test and the auxiliary shutoff valve, and when the first continuous time length of the shutoff valve under test not being in the closed state is greater than the first preset time length, it is determined that the shutoff valve under test is in the first fault state. Thus, the problem that the shutoff performance, reliability and life of the existing shutoff valve need to be verified is solved, and by accurately controlling the pressure and temperature of the gas entering the shutoff valve, the performance, reliability and other dimensions of the shutoff valve can be tested.

[0113] Figure 5 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. The vehicle may include:

[0114] A memory 501 , a processor 502 , and a computer program stored in the memory 501 and executable on the processor 502 .

[0115] When the processor 502 executes the program, the shut-off valve testing method for the fuel cell engine provided in the above embodiment is implemented.

[0116] Furthermore, the vehicle also includes:

[0117] The communication interface 503 is used for communication between the memory 501 and the processor 502 .

[0118] The memory 501 is used to store computer programs that can be executed on the processor 502 .

[0119] The memory 501 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0120] If the memory 501, the processor 502 and the communication interface 503 are implemented independently, the communication interface 503, the memory 501 and the processor 502 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0121] Optionally, in a specific implementation, if the memory 501, the processor 502 and the communication interface 503 are integrated on a chip, the memory 501, the processor 502 and the communication interface 503 can communicate with each other through an internal interface.

[0122] The processor 502 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0123] An embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-mentioned shut-off valve testing method for a fuel cell engine.

[0124] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0125] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0126] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0127] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or N wirings (electronic devices), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0128] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0129] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0130] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0131] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for testing a shutoff valve of a fuel cell engine, characterized in that: The method utilizes a stop valve test system, which includes an air compressor, a humidity collection component, a temperature collection component, a flow collection component, a first pressure collection component, a stop valve to be tested, a second pressure collection component, and an auxiliary stop valve connected in sequence, wherein the method includes the following steps: Acquire the test requirements of the stop valve under test, wherein the test requirements include test parameters; The stop valve test system is adjusted based on the test requirements, and when the air compressor, the humidity collection component, the temperature collection component, the flow collection component and the first pressure collection component all meet the test parameters, the test time of the stop valve under test is accumulated; If the test duration reaches the preset test duration, a closing command is sent to the tested stop valve and the auxiliary stop valve. If the first continuous time during which the tested stop valve is not in the closed state is greater than the first preset time, it is determined that the tested stop valve is in the first fault state.

2. The method according to claim 1, characterized in that After sending the closing instruction to the tested stop valve and the auxiliary stop valve, the method further includes: If the auxiliary stop valve and the measured stop valve are both in the closed state, when the second duration of the measured stop valve being in the closed state is greater than a second preset duration, the pressure collected by the second pressure collecting component is obtained; If the pressure collected by the second pressure collecting component meets the preset pressure condition, it is determined that the tested stop valve is in a normal state; otherwise, it is determined that the tested stop valve is in a second fault state.

3. The method according to claim 2, characterized in that After determining that the tested stop valve is in the first fault state, or determining that the tested stop valve is in the second fault state, the method further includes: generating first fault information based on the first fault state, or generating second fault information based on the second fault state; A fault reminder is issued according to the first fault information or the second fault information.

4. The method according to claim 2, characterized in that: After determining that the tested stop valve is in a normal state, the method further includes: Determine whether there is a new test requirement for the tested stop valve; If there is a new test requirement for the tested stop valve, the step of adjusting the stop valve test system based on the test requirement is re-executed.

5. The method according to claim 1, characterized in that After determining that the tested stop valve is not in the closed state, the method further includes: If the closing time of the tested stop valve is less than or equal to the first preset time length, the step of sending a closing instruction to the tested stop valve and the auxiliary stop valve is re-executed.

6. A shut-off valve testing device for a fuel cell engine, characterized in that: The device utilizes a stop valve test system, which includes an air compressor, a humidity collection component, a temperature collection component, a flow collection component, a first pressure collection component, a stop valve to be tested, a second pressure collection component and an auxiliary stop valve connected in sequence, wherein the device includes: An acquisition module, used for acquiring the test requirements of the tested stop valve, wherein the test requirements include test parameters; an adjustment module, configured to adjust the stop valve test system based on the test requirements, and start accumulating the test time of the stop valve under test when the air compressor, the humidity collection component, the temperature collection component, the flow collection component and the first pressure collection component all meet the test parameters; The test module is used to send a closing instruction to the tested stop valve and the auxiliary stop valve if the test duration reaches a preset test duration, and to determine that the tested stop valve is in a first fault state if the first continuous time during which the tested stop valve is not in a closed state is greater than a first preset time.

7. The device according to claim 6, characterized in that After sending the closing instruction to the tested stop valve and the auxiliary stop valve, the testing module is further used to: If the auxiliary stop valve and the measured stop valve are both in the closed state, when the second duration of the measured stop valve being in the closed state is greater than a second preset duration, the pressure collected by the second pressure collecting component is obtained; If the pressure collected by the second pressure collecting component meets the preset pressure condition, it is determined that the tested stop valve is in a normal state; otherwise, it is determined that the tested stop valve is in a second fault state.

8. The device according to claim 7, characterized in that After determining that the tested stop valve is in the first fault state, or determining that the tested stop valve is in the second fault state, the testing module is further used to: generating first fault information based on the first fault state, or generating second fault information based on the second fault state; A fault reminder is issued according to the first fault information or the second fault information.

9. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement a shutoff valve testing method for a fuel cell engine as claimed in any one of claims 1 to 5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement a shutoff valve testing method for a fuel cell engine according to any one of claims 1 to 5.

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