Fuel cell engine bench durability testing methods, apparatus and computer equipment

Abstract

The present application relates to a kind of fuel cell engine bench endurance test method, device and computer equipment.The test method includes: selecting at least one heavy commercial vehicle to carry out the heavy commercial vehicle wheel hub test, each vehicle type is carried out multiple tests, and fuel cell engine operating data are collected;The actual road test of heavy commercial vehicle is carried out, and fuel cell engine operating data are collected;Wheel hub test data and vehicle test data are combined, and are fitted into fuel cell engine bench endurance test condition;Endurance test is carried out using the fitted test condition, and test data are obtained;Vehicle test data and bench test data are compared, and a conclusion is drawn.The actual service life of fuel cell engine can be predicted in the development stage of fuel cell engine bench, and a large amount of vehicle verification cost is saved.

Description

Technical Field

[0001] This application relates to the field of fuel cell technology, and in particular to a fuel cell engine bench durability testing method, apparatus, and computer equipment. Background Technology

[0002] Zero carbon and zero pollution are the future trend of power development. The principle of proton exchange membrane fuel cell is to use the reaction of hydrogen and oxygen to directly convert chemical energy into electrical energy. Due to its advantages such as high energy conversion efficiency and no pollution, hydrogen fuel cell is one of the best solutions to achieve the above goals.

[0003] A method and apparatus for predicting the lifespan of a fuel cell engine based on measured correlation are disclosed. The structure and method include: acquiring the unit cycle operating conditions of the fuel cell engine to be predicted; conducting a durability test; obtaining the average single-cell voltage decay rate based on the average single-cell voltage corresponding to the reference current point; calculating the average single-cell voltage decay rate under actual vehicle operation; obtaining an acceleration factor based on the average single-cell voltage decay rate and the average single-cell voltage decay rate; and obtaining the predicted mileage range for the lifespan of the fuel cell engine to be predicted. This patent's lifespan prediction for fuel cell engines is aimed at the overall fuel cell engine industry, but it only assesses the lifespan of fuel cell engines under a specific operating condition. Its test conditions are not applicable to fuel cell engines in heavy-duty commercial vehicles.

[0004] A method for predicting the lifespan of a fuel cell stack and its application in engine systems and vehicles. The method includes providing a fuel cell engine system and vehicle prototype, catalyst material samples, analyzing them, establishing a data model, inputting the analyzed data into the data model to form an initial state database; conducting accelerated degradation experiments under different lifespan acceleration conditions or a fixed accelerated durability method, and designing and verifying accelerated verification samples through these experiments; extending the operating life of the fuel cell engine system and vehicle prototype through external intervention, and then calibrating and solidifying the extended-life prototype; obtaining samples of the catalyst layer inside the stack for analysis and comparison, and quantitatively evaluating the current lifespan standard. This patent utilizes the internal microstructure of the fuel cell stack to predict its lifespan, which requires disassembling the stack with specialized equipment, resulting in high costs, significant difficulty, and impracticality for actual products.

[0005] Therefore, this invention proposes a more scientific, specific, and practical bench durability test method for fuel cell engines that conforms to the actual operating conditions of heavy-duty commercial vehicles. This method accurately predicts the lifespan of fuel cell engines in heavy-duty commercial vehicles. The invention focuses on collecting test road profiles of the entire vehicle and simultaneously collecting data on the operating conditions of the fuel cell engine. It also provides detailed explanations of the formulation of bench test conditions, detailed descriptions of the test process and specific operations, and detailed analysis of the test data, thereby demonstrating the advanced nature of this test method.

[0006] With the development of fuel cell technology, durability (i.e., service life) remains a crucial factor restricting the large-scale commercial application of fuel cell engines. In recent years, fuel cell engine durability has been a key research focus in industry testing. However, using real-world driving tests to predict the lifespan of fuel cell engines requires significant time, manpower, material resources, and financial investment, making it difficult to adopt widely within the industry.

[0007] In traditional technologies, there are few bench durability testing methods for internal fuel cell engines, and those that exist are mostly general guidelines. The same engine installed in different types of vehicles can have significantly different operating conditions and usage scenarios.

[0008] However, current fuel cell engine bench durability testing methods are not suitable for testing heavy-duty commercial vehicles, making it difficult to accurately predict the lifespan of fuel cell engines in heavy-duty commercial vehicles. Summary of the Invention

[0009] Therefore, it is necessary to provide a fuel cell engine bench durability test method, apparatus, and computer equipment that can fully verify the performance and reliability of fuel cell engines, predict the actual service life of fuel cell engines during the fuel cell engine bench development stage, and significantly reduce the verification cost of the whole vehicle.

[0010] In a first aspect, this application provides a method for durability testing of a fuel cell engine bench, the method comprising:

[0011] At least one heavy-duty commercial vehicle was selected to conduct wheel hub tests under heavy-duty commercial vehicle operating conditions. Multiple tests were conducted on each model to collect fuel cell engine operating data.

[0012] Conduct real-world road tests on heavy-duty commercial vehicles and collect operating data from fuel cell engines;

[0013] By combining wheel hub test data and whole vehicle test data, a bench durability test condition for a gas-electric engine is simulated.

[0014] Bench durability tests were conducted using the fitted test conditions to obtain test data;

[0015] By comparing the vehicle test data with the bench test data, a conclusion was drawn.

[0016] The heavy-duty commercial vehicles include:

[0017] Trucks, dump trucks, and tractor units will undergo preliminary fitting of the operating conditions of the same type of engine used in the above-mentioned different types of heavy commercial vehicles to form the initial stage of durability test conditions.

[0018] The heavy-duty commercial vehicle in question is a vehicle equipped with a fuel cell engine. The operating conditions of the same type of engine in different types of heavy-duty commercial vehicles are fitted to form an advanced bench durability test condition.

[0019] Before conducting bench durability tests using the fitted test conditions, bench performance tests are first conducted, and the test data are recorded.

[0020] After conducting bench durability tests using the fitted test conditions, bench performance tests were conducted again, and the test data were recorded.

[0021] The actual road test of the whole vehicle and the wheel hub test take the same amount of time.

[0022] Secondly, this application also provides a fuel cell engine bench durability testing apparatus, the apparatus comprising:

[0023] The recording module is used to record experimental data;

[0024] The fitting module is used to fit the wheel hub test data and the whole vehicle test data into the working conditions of the gas-electric engine bench durability test.

[0025] The comparison module is used to compare and analyze the experimental data from different groups.

[0026] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0027] At least one heavy-duty commercial vehicle was selected to conduct wheel hub tests under heavy-duty commercial vehicle operating conditions. Multiple tests were conducted on each model to collect fuel cell engine operating data.

[0028] Conduct real-world road tests on heavy-duty commercial vehicles and collect operating data from fuel cell engines;

[0029] By combining wheel hub test data and whole vehicle test data, a bench durability test condition for a gas-electric engine is simulated.

[0030] Bench durability tests were conducted using the fitted test conditions to obtain test data;

[0031] By comparing the vehicle test data with the bench test data, a conclusion was drawn.

[0032] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:

[0033] At least one heavy-duty commercial vehicle was selected to conduct wheel hub tests under heavy-duty commercial vehicle operating conditions. Multiple tests were conducted on each model to collect fuel cell engine operating data.

[0034] Conduct real-world road tests on heavy-duty commercial vehicles and collect operating data from fuel cell engines;

[0035] By combining wheel hub test data and whole vehicle test data, a bench durability test condition for a gas-electric engine is simulated.

[0036] Bench durability tests were conducted using the fitted test conditions to obtain test data;

[0037] By comparing the vehicle test data with the bench test data, a conclusion was drawn.

[0038] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0039] At least one heavy-duty commercial vehicle was selected to conduct wheel hub tests under heavy-duty commercial vehicle operating conditions. Multiple tests were conducted on each model to collect fuel cell engine operating data.

[0040] Conduct real-world road tests on heavy-duty commercial vehicles and collect operating data from fuel cell engines;

[0041] By combining wheel hub test data and whole vehicle test data, a bench durability test condition for a gas-electric engine is simulated.

[0042] Bench durability tests were conducted using the fitted test conditions to obtain test data;

[0043] By comparing the vehicle test data with the bench test data, a conclusion was drawn.

[0044] The aforementioned fuel cell engine bench durability testing method, apparatus, and computer equipment can predict the actual service life of a fuel cell engine during the fuel cell engine bench development stage, significantly reducing vehicle verification costs. Bench durability tests are conducted using the fitted bench test conditions, and simultaneously tested using the national standard bench durability testing methods for fuel cell engines. Comparison of the test results demonstrates the invention's advancement and provides advanced guidance for future fuel cell engine durability development, significantly reducing product development time and costs. Conducting vehicle road tests and national standard operating condition durability tests, using these as comparative examples, and comparing them with durability tests conducted under the fitted bench test conditions reveals that the durability test results using the fitted bench test conditions are extremely close to those of actual vehicle road tests. This demonstrates the invention's advancement and accuracy, providing advanced guidance for future fuel cell engine durability development and significantly reducing product development time and costs. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the fitted bench test condition curve of the fuel cell engine bench durability test method in one embodiment;

[0047] Figure 2 This is a comparison chart showing the performance degradation data after the bench durability test of the fuel cell engine under the fitted bench test conditions in one embodiment, and the performance degradation after the bench durability test and the actual road test of the vehicle under the national standard conditions. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0049] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0050] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0055] In one embodiment, a method for conducting fuel cell engine bench durability tests is provided, the method comprising the following steps:

[0056] (1) Conduct heavy commercial vehicle working condition hub test, and conduct multiple working condition hub tests for trucks, dump trucks and tractors respectively, and collect fuel cell engine operation data;

[0057] (2) Collect fuel cell engine operating data based on actual road tests of heavy commercial vehicles;

[0058] (3) Develop detailed bench durability test conditions and test procedures;

[0059] (4) At the same time, heavy commercial vehicles using the above-mentioned heavy commercial vehicle fuel cell engine bench durability test conditions were used to obtain test data;

[0060] (5) Compare the results of the whole vehicle road test of the heavy commercial vehicle with the results of the bench test to draw a conclusion.

[0061] The bench test condition curve fitted based on the test data in step (4) is as follows: Figure 1 As shown.

[0062] For heavy commercial vehicles, the working conditions of heavy-duty trucks, heavy-duty dump trucks, and heavy-duty tractors were selected for hub rotation tests. Each test was performed multiple times to obtain test data.

[0063] The actual operating conditions of the gas-electric engine were obtained through real-world road tests of heavy-duty commercial vehicles.

[0064] By combining the hub test data of heavy commercial vehicles with the whole vehicle test data of heavy commercial vehicles, the test conditions of the gas-electric engine bench durability test are simulated.

[0065] The bench durability test was conducted using the fitted bench test conditions described above, and the test was carried out simultaneously using the bench durability test method for gas-electric engines in the national standard. The test results were compared to demonstrate the advanced nature of the invention. This provides an advanced guiding method for the future development of fuel cell engine durability, which will greatly save product development cycle and costs.

[0066] In one embodiment, the heavy-duty commercial vehicle in step (1) refers to a vehicle equipped with a fuel cell engine; a bench test is conducted on the heavy-duty commercial vehicle operating conditions specified in Part II of the Chinese Standard for Automobile Operating Conditions to collect fuel cell engine data, and the operating conditions of the same type of engine in the three different types of heavy-duty commercial vehicles are initially fitted to form the initial stage of durability test conditions.

[0067] In one embodiment, during the vehicle road test in step (2), fuel cell engine data is collected, and the operating conditions of the same type of engine in the three different types of heavy commercial vehicles are fitted to form an advanced bench durability test condition.

[0068] In one embodiment, in step (3), the bench test conditions are fitted, and the test conditions in steps (1) and (2) are selected and fitted again to form the final bench durability test conditions.

[0069] In one embodiment, in step (4), the bench test is first conducted, and the test data is recorded.

[0070] In one embodiment, in step (4), a bench durability test is then performed, using the bench durability test conditions fitted in step (3) for the durability test, and after completion, a bench performance test is performed again, and the test data is recorded.

[0071] In one embodiment, step (5) involves actual road testing of the entire vehicle. After completing the road test for the same duration as step (4), a performance test is conducted on the gas-electric engine mounted on the vehicle, and the test data is recorded.

[0072] In one embodiment, step (5) data comparison involves comparing the actual vehicle data from step (4) with that from step (5) to perform data analysis and draw conclusions.

[0073] The bench durability test was conducted using the fitted bench test conditions described above, and the test was carried out simultaneously using the bench durability test method for gas-electric engines in the national standard. The test results were compared to demonstrate the advanced nature of the invention. This provides an advanced guiding method for the future development of fuel cell engine durability, which will greatly save product development cycle and costs.

[0074] In one embodiment, heavy commercial vehicles are selected to undergo a hub rotation test under the working conditions of heavy-duty trucks, heavy-duty dump trucks, and heavy-duty tractors. Each test is performed 6 times to obtain test data.

[0075] In one embodiment, heavy commercial vehicles other than heavy-duty trucks, heavy-duty dump trucks, and heavy-duty tractors are selected for the hub rotation test. Each test is performed 6 times to obtain test data.

[0076] Trucks, dump trucks, and tractor units will undergo preliminary fitting of the operating conditions of the same type of engine used in the above-mentioned different types of heavy commercial vehicles to form the initial stage of durability test conditions.

[0077] In one embodiment, the heavy-duty commercial vehicle is a vehicle equipped with a fuel cell engine. The operating conditions of the same type of engine equipped in different types of heavy-duty commercial vehicles are fitted to form an advanced bench durability test condition.

[0078] In one embodiment, before conducting bench durability testing using fitted test conditions, bench performance testing is first performed, and test data is recorded.

[0079] In one embodiment, after conducting a bench durability test using the fitted test conditions, a bench performance test is conducted again, and the test data are recorded.

[0080] In one embodiment, the actual road test of the whole vehicle and the wheel hub test take the same amount of time to run.

[0081] The actual service life of a fuel cell engine can be predicted during the fuel cell engine bench development stage, significantly reducing vehicle verification costs. Bench durability tests are conducted using the fitted bench test conditions described above, and simultaneously tested using the national standard bench durability test methods for fuel cell engines. The test results are compared to demonstrate the invention's advancement, providing advanced guidance for future fuel cell engine durability development and significantly reducing product development time and costs. Vehicle road tests and national standard durability tests are conducted, and these are used as comparative examples. Comparison with durability tests conducted under the fitted bench test conditions shows that the results are extremely close to those of actual vehicle road tests, proving the invention's advancement and accuracy. This provides advanced guidance for future fuel cell engine durability development and significantly reduces product development time and costs.

[0082] In one embodiment, a bench durability test method for a fuel cell engine for heavy-duty commercial vehicles is provided. The test object in this embodiment is a fuel cell engine installed in a heavy-duty commercial vehicle, and includes the following steps:

[0083] 1) Bench rotation tests and vehicle road tests were conducted under heavy commercial vehicle operating conditions to collect data on fuel cell engines.

[0084] 2) The operating conditions of the same type of engine installed in the three different types of heavy commercial vehicles mentioned above were fitted. The test procedure is shown in Table 1.

[0085] Table 1 Test Procedure

[0086]

[0087]

[0088] 3) Conduct bench performance tests before durability tests, record test data, conduct durability tests, conduct bench performance tests again after the durability tests are completed, and record test data.

[0089] Comparative Example 1 (Whole Vehicle Road Test):

[0090] A full vehicle road test was conducted using a heavy-duty commercial vehicle equipped with the same gas-electric engine as in the previous embodiment. After the test, a bench performance test was conducted, and the test data were recorded.

[0091] Finally, the data recorded in the above embodiments were compared with those in Comparative Example 1 to draw experimental conclusions. The durability test results using the fitted bench test conditions were extremely close to those of the actual road test results of the whole vehicle, which proved the advanced nature and accuracy of the present invention. This provides an advanced guiding method for the future development of fuel cell engine durability and will greatly save product development cycle and costs.

[0092] The actual service life of a fuel cell engine can be predicted during the fuel cell engine bench development stage, significantly reducing vehicle verification costs. Bench durability tests are conducted using the fitted bench test conditions described above, and simultaneously tested using the national standard bench durability test methods for fuel cell engines. The test results are compared to demonstrate the invention's advancement, providing advanced guidance for future fuel cell engine durability development and significantly reducing product development time and costs. Vehicle road tests and national standard durability tests are conducted, and these are used as comparative examples. Comparison with durability tests conducted under the fitted bench test conditions shows that the results are extremely close to those of actual vehicle road tests, proving the invention's advancement and accuracy. This provides advanced guidance for future fuel cell engine durability development and significantly reduces product development time and costs.

[0093] In one embodiment, a fuel cell engine bench durability testing apparatus is provided, the apparatus comprising:

[0094] The recording module is used to record experimental data;

[0095] The fitting module is used to fit the wheel hub test data and the whole vehicle test data into the working conditions of the gas-electric engine bench durability test.

[0096] The comparison module is used to compare and analyze the experimental data from different groups.

[0097] In one embodiment, heavy-duty commercial vehicles include three types: trucks, dump trucks, and tractor-trailers. The fuel cell engine bench durability testing device also includes:

[0098] The first fitting module is used to perform preliminary fitting of the operating conditions of the same type of engine installed in the three different types of heavy commercial vehicles mentioned above, forming the initial stage of durability test conditions.

[0099] In one embodiment, the heavy-duty commercial vehicle is a vehicle equipped with a fuel cell engine, and the fuel cell engine bench durability testing device further includes:

[0100] The second fitting module is used to fit the operating conditions of the same type of engine installed in three different types of heavy commercial vehicles to form an advanced version of bench durability test conditions.

[0101] In one embodiment, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0102] At least one heavy-duty commercial vehicle was selected to conduct wheel hub tests under heavy-duty commercial vehicle operating conditions. Multiple tests were conducted on each model to collect fuel cell engine operating data.

[0103] Conduct real-world road tests on heavy-duty commercial vehicles and collect operating data from fuel cell engines;

[0104] By combining wheel hub test data and whole vehicle test data, a bench durability test condition for a gas-electric engine is simulated.

[0105] Bench durability tests were conducted using the fitted test conditions to obtain test data;

[0106] By comparing the vehicle test data with the bench test data, a conclusion was drawn.

[0107] In one embodiment, heavy commercial vehicles include three types: trucks, dump trucks, and tractor-trailers. When the processor executes the computer program, it performs the following steps:

[0108] The operating conditions of the same type of engine installed in the three different types of heavy commercial vehicles mentioned above were initially fitted to form the initial stage of durability test conditions.

[0109] In one embodiment, the heavy-duty commercial vehicle is a vehicle equipped with a fuel cell engine, and the processor executes the computer program to perform the following steps:

[0110] The operating conditions of the same type of engine installed in three different types of heavy commercial vehicles were fitted to form an advanced bench durability test condition.

[0111] In one embodiment, when the processor executes the computer program, it performs the following steps:

[0112] Before conducting bench durability tests using the fitted test conditions, bench performance tests are first conducted, and the test data are recorded.

[0113] In one embodiment, when the processor executes the computer program, it performs the following steps:

[0114] After conducting bench durability tests using the fitted test conditions, bench performance tests were conducted again, and the test data were recorded.

[0115] In one embodiment, when the processor executes the computer program, it performs the following steps:

[0116] The actual road test of the whole vehicle and the wheel hub test take the same amount of time.

[0117] In one embodiment, this application also provides a computer-readable storage medium having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0118] At least one heavy-duty commercial vehicle was selected to conduct wheel hub tests under heavy-duty commercial vehicle operating conditions. Multiple tests were conducted on each model to collect fuel cell engine operating data.

[0119] Conduct real-world road tests on heavy-duty commercial vehicles and collect operating data from fuel cell engines;

[0120] By combining wheel hub test data and whole vehicle test data, a bench durability test condition for a gas-electric engine is simulated.

[0121] Bench durability tests were conducted using the fitted test conditions to obtain test data;

[0122] By comparing the vehicle test data with the bench test data, a conclusion was drawn.

[0123] In one embodiment, heavy commercial vehicles include three types: trucks, dump trucks, and tractor-trailers. When the computer program is executed by the processor, it performs the following steps:

[0124] The operating conditions of the same type of engine installed in the three different types of heavy commercial vehicles mentioned above were initially fitted to form the initial stage of durability test conditions.

[0125] In one embodiment, the heavy-duty commercial vehicle is a vehicle equipped with a fuel cell engine, and the computer program, when executed by the processor, performs the following steps:

[0126] The operating conditions of the same type of engine installed in three different types of heavy commercial vehicles were fitted to form an advanced bench durability test condition.

[0127] In one embodiment, when a computer program is executed by a processor, it performs the following steps:

[0128] Before conducting bench durability tests using the fitted test conditions, bench performance tests are first conducted, and the test data are recorded.

[0129] In one embodiment, when a computer program is executed by a processor, it performs the following steps:

[0130] After conducting bench durability tests using the fitted test conditions, bench performance tests were conducted again, and the test data were recorded.

[0131] In one embodiment, when a computer program is executed by a processor, it performs the following steps:

[0132] The actual road test of the whole vehicle and the wheel hub test take the same amount of time.

[0133] In one embodiment, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0134] At least one heavy-duty commercial vehicle was selected to conduct wheel hub tests under heavy-duty commercial vehicle operating conditions. Multiple tests were conducted on each model to collect fuel cell engine operating data.

[0135] Conduct real-world road tests on heavy-duty commercial vehicles and collect operating data from fuel cell engines;

[0136] By combining wheel hub test data and whole vehicle test data, a bench durability test condition for a gas-electric engine is simulated.

[0137] Bench durability tests were conducted using the fitted test conditions to obtain test data;

[0138] By comparing the vehicle test data with the bench test data, a conclusion was drawn.

[0139] In one embodiment, heavy commercial vehicles include three types: trucks, dump trucks, and tractor-trailers. When the above-mentioned computer program is executed by a processor, it performs the following steps:

[0140] The operating conditions of the same type of engine installed in the three different types of heavy commercial vehicles mentioned above were initially fitted to form the initial stage of durability test conditions.

[0141] In one embodiment, the heavy-duty commercial vehicle is a vehicle equipped with a fuel cell engine, and when the above-mentioned computer program is executed by the processor, it performs the following steps:

[0142] The operating conditions of the same type of engine installed in three different types of heavy commercial vehicles were fitted to form an advanced bench durability test condition.

[0143] In one embodiment, when the above-described computer program is executed by a processor, it performs the following steps:

[0144] Before conducting bench durability tests using the fitted test conditions, bench performance tests are first conducted, and the test data are recorded.

[0145] In one embodiment, when the above-described computer program is executed by a processor, it performs the following steps:

[0146] After conducting bench durability tests using the fitted test conditions, bench performance tests were conducted again, and the test data were recorded.

[0147] In one embodiment, when the above-described computer program is executed by a processor, it performs the following steps:

[0148] The actual road test of the whole vehicle and the wheel hub test take the same amount of time.

[0149] The actual service life of a fuel cell engine can be predicted during the fuel cell engine bench development stage, significantly reducing vehicle verification costs. Bench durability tests are conducted using the fitted bench test conditions described above, and simultaneously tested using the national standard bench durability test methods for fuel cell engines. The test results are compared to demonstrate the invention's advancement, providing advanced guidance for future fuel cell engine durability development and significantly reducing product development time and costs. Vehicle road tests and national standard durability tests are conducted, and these are used as comparative examples. Comparison with durability tests conducted under the fitted bench test conditions shows that the results are extremely close to those of actual vehicle road tests, proving the invention's advancement and accuracy. This provides advanced guidance for future fuel cell engine durability development and significantly reduces product development time and costs.

[0150] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0151] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A fuel cell engine bench durability test method, characterized by, The test method comprises: selecting at least one heavy commercial vehicle to perform a heavy commercial vehicle working condition hub test, each vehicle type performing multiple tests, collecting fuel cell engine operation data, the heavy commercial vehicle including a truck, a dump truck and a tractor, preliminarily fitting the same type of engine operation conditions of the heavy commercial vehicles of different types to form a primary stage durability test condition; performing a heavy commercial vehicle actual road test, collecting fuel cell engine operation data, the heavy commercial vehicle being a vehicle equipped with a fuel cell engine, fitting the same type of engine operation conditions of the heavy commercial vehicles of different types to form an advanced version of a bench durability test condition; combining the primary stage durability test condition and the advanced version of the bench durability test condition to fit a fuel cell engine bench durability test condition; performing a bench durability test using the fuel cell engine bench durability test condition to obtain test data; comparing the vehicle test data and the bench test data to draw a conclusion.

2. The method of claim 1, wherein, Before performing the bench durability test using the fuel cell engine bench durability test condition, a bench performance test is first performed to record test data.

3. The method of claim 2, wherein, After performing the bench durability test using the fitted test condition, a bench performance test is again performed to record test data.

4. The method according to any one of claims 1 to 3, characterized in that, The running time of the vehicle actual road test is the same as that of the hub test.

5. A fuel cell engine bench durability test device characterized by comprising: The device comprises: a recording module for recording test data, including: selecting at least one heavy commercial vehicle to perform a heavy commercial vehicle working condition hub test, each vehicle type performing multiple tests, collecting fuel cell engine operation data; performing a heavy commercial vehicle actual road test, collecting fuel cell engine operation data; the heavy commercial vehicle including a truck, a dump truck and a tractor; the heavy commercial vehicle being a vehicle equipped with a fuel cell engine; a fitting module for preliminarily fitting the same type of engine operation conditions of the heavy commercial vehicles of different types to form a primary stage durability test condition; fitting the same type of engine operation conditions of the heavy commercial vehicles of different types to form an advanced version of a bench durability test condition; combining the primary stage durability test condition and the advanced version of the bench durability test condition to fit a fuel cell engine bench durability test condition; a comparison module for comparing and analyzing each group of test data, each group of test data including vehicle test data and bench test data, including: performing a bench durability test using the fuel cell engine bench durability test condition to obtain test data; comparing the vehicle test data and the bench test data to draw a conclusion. 6.A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer device is configured to perform the method according to any one of claims 1-6 when the computer program is executed by the processor. The processor executes the computer program to implement the steps of the method of any one of claims 1 to 4.

7. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 4.

8. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 4.

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