Method, device, vehicle and storage medium for loading a fuel cell engine

Abstract

The application discloses a loading method and device of a fuel cell engine, a vehicle and a storage medium. The loading method of the fuel cell engine comprises the following steps: obtaining a target demand current; comparing the target demand current with a current loading threshold value, and adjusting a current loading rate of the fuel cell engine according to a comparison result, so as to load a current of the fuel cell engine to the target demand current, wherein the current loading threshold value is a maximum limit value of a current loaded by the fuel cell engine currently. The technical scheme provided by the application can reduce the influence of loading on the fuel cell engine.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a method, apparatus, vehicle, and storage medium for loading a fuel cell engine. Background Technology

[0002] A major factor affecting the lifespan of a fuel cell engine is variable load. The thermal / humidity cycle, gas shortage, and potential cycle generated under variable load conditions will lead to mechanical degradation of components, carbon corrosion, and catalyst aging, thereby causing a decline in fuel cell engine performance and a reduction in lifespan.

[0003] Existing loading methods still suffer from undergassing and control overshoot during load changes, which can easily lead to performance degradation and lifespan reduction of fuel cell engines. Summary of the Invention

[0004] This invention provides a loading method, apparatus, vehicle, and storage medium for a fuel cell engine to reduce the impact of loading on the fuel cell engine.

[0005] In a first aspect, embodiments of the present invention provide a method for loading a fuel cell engine to obtain a target required current;

[0006] The target current requirement is compared with the current loading threshold, and the current loading rate of the fuel cell engine is adjusted according to the comparison result to load the current of the fuel cell engine to the target current requirement, wherein the current loading threshold is the maximum limit of the current currently loaded by the fuel cell engine.

[0007] Optionally, comparing the target required current with a current loading threshold and adjusting the current loading rate of the fuel cell engine based on the comparison result includes:

[0008] If the target current requirement is less than the current loading threshold, the current loading rate of the fuel cell engine is adjusted to the first loading slope rate.

[0009] If the target current requirement is greater than or equal to the current loading threshold, the loading process of the fuel cell engine is divided into three stages, and the current loading rates in the three stages are adjusted to the second loading rate, the third loading rate, and the fourth loading rate in sequence, wherein the second loading rate and the fourth loading rate are both less than the third loading rate.

[0010] Optionally, the three stages include a first stage, a second stage, and a third stage in sequence;

[0011] The loading method for the fuel cell engine also includes:

[0012] In the first stage, the current of the fuel cell engine is changed from the current to a first current;

[0013] In the second stage, the current of the fuel cell engine is changed from the first current to the second current;

[0014] In the third stage, the current of the fuel cell engine is changed from the second current to the target demand current;

[0015] Wherein, the difference between the first current and the current is less than the difference between the second current and the first current, and the difference between the target required current and the second current is less than the difference between the second current and the first current.

[0016] Optional, also includes:

[0017] During the three-stage loading process of the fuel cell engine, the average single-cell voltage drop of the fuel cell is obtained after each stage is completed, and the current loading rate of the fuel cell engine in the current stage and all subsequent stages is adjusted according to the average single-cell voltage drop.

[0018] Optionally, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages based on the average cell voltage drop includes:

[0019] If the average cell voltage drop is greater than or equal to a preset threshold after the current stage is completed, the current loading rate of the fuel cell engine in the current stage and all subsequent stages is adjusted, and the adjusted current loading rate is less than the original current loading rate of the corresponding stage.

[0020] If the average cell voltage drop is less than the preset threshold after the current stage is completed, the current loading rate of the fuel cell engine in the current stage and all subsequent stages shall be adjusted to maintain the original current loading rate.

[0021] Optionally, the three stages include a first stage, a second stage, and a third stage in sequence;

[0022] If, after the current stage of loading is completed, the average cell voltage drop is greater than or equal to a preset threshold, the current loading rate of the fuel cell engine in the current stage and all subsequent stages is adjusted, including:

[0023] When the loading is completed in the first stage and the average cell voltage drop is determined to be greater than or equal to the first preset threshold, the current loading rate of the fuel cell engine in the first stage, the second stage and the third stage is adjusted to the fifth loading rate, the sixth loading rate and the seventh loading rate in sequence. The ratio of the fifth loading rate to the second loading rate, the ratio of the sixth loading rate to the third loading rate and the ratio of the seventh loading rate to the fourth loading rate are the same and the ratio is less than 1.

[0024] When the second stage of loading is performed and the loading is completed in the second stage, and when it is determined that the average single-cell voltage drop value is greater than or equal to the second preset threshold, the current loading rate of the fuel cell engine in the second stage and the third stage is adjusted to the eighth loading rate and the ninth loading rate in sequence. The ratio of the eighth loading rate to the sixth loading rate and the ratio of the ninth loading rate to the seventh loading rate are the same and the ratio is less than 1. The eighth loading rate is greater than the second loading rate and the fifth loading rate.

[0025] When the third stage of loading is performed and the loading is completed in the third stage, and when it is determined that the average cell voltage drop value is greater than or equal to the third preset threshold, the current loading rate of the fuel cell engine in the third stage is adjusted to the tenth loading rate, wherein the ratio of the tenth loading rate to the ninth loading rate is less than 1.

[0026] Optional, also includes:

[0027] During the process of applying current to the fuel cell engine to the target required current, the rate of change of airflow is controlled to be greater than or equal to the current application rate.

[0028] Secondly, embodiments of the present invention provide a loading device for a fuel cell engine, comprising:

[0029] The data acquisition module is used to acquire the target required current.

[0030] The current loading rate adjustment module is used to compare the target demand current with the current loading threshold, and adjust the current loading rate of the fuel cell engine according to the comparison result, so as to load the current of the fuel cell engine to the target demand current, wherein the current loading threshold is the maximum limit of the current currently loaded by the fuel cell engine.

[0031] Thirdly, embodiments of the present invention provide a vehicle, including:

[0032] One or more processors;

[0033] Storage device, on which one or more programs are stored,

[0034] When the one or more programs are executed by the one or more processors, the one or more processors implement the fuel cell engine loading method described in the first aspect.

[0035] Thirdly, embodiments of the present invention provide a computer-readable medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the fuel cell engine loading method described in the first aspect.

[0036] The solution provided by this invention obtains the target demand current, compares the target demand current with the current loading threshold, and then adjusts the current loading rate of the fuel cell engine according to the comparison result to load the current of the fuel cell engine to the target demand current. This can ensure that the system clock of the fuel cell engine remains stable during the loading process, avoid problems such as insufficient gas and control overshoot caused by too fast loading rate, and shorten the loading process time.

[0037] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, although the drawings described below are some specific embodiments of the present invention, those skilled in the art can extend and extend the basic concepts of the device structure, driving method and manufacturing method disclosed and indicated by various embodiments of the present invention to other structures and drawings. Undoubtedly, these should all be within the scope of the claims of the present invention.

[0039] Figure 1 A flowchart illustrating a loading method for a fuel cell engine provided in an embodiment of the present invention;

[0040] Figure 2 A flowchart illustrating another loading method for a fuel cell engine provided in an embodiment of the present invention;

[0041] Figure 3 A flowchart illustrating another loading method for a fuel cell engine provided in an embodiment of the present invention;

[0042] Figure 4 A flowchart illustrating another loading method for a fuel cell engine provided in an embodiment of the present invention;

[0043] Figure 5 A flowchart illustrating another loading method for a fuel cell engine provided in an embodiment of the present invention;

[0044] Figure 6 This is a schematic diagram of the structure of a loading device for a fuel cell engine provided in an embodiment of the present invention;

[0045] Figure 7 This is a structural schematic diagram of a vehicle provided in an embodiment of the present invention. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this invention. Obviously, the described embodiments are only some embodiments of this invention, not all embodiments. Based on the basic concepts disclosed and indicated in the embodiments of this invention, all other embodiments obtained by those skilled in the art are within the scope of protection of this invention.

[0047] Figure 1 A flowchart illustrating a loading method for a fuel cell engine provided in an embodiment of the present invention is shown below. Figure 1 As shown, the method specifically includes the following steps:

[0048] S101, Obtain the target required current.

[0049] S102. Compare the target demand current with the current loading threshold, and adjust the current loading rate of the fuel cell engine according to the comparison result to load the current of the fuel cell engine to the target demand current, wherein the current loading threshold is the maximum limit of the current loaded by the fuel cell engine.

[0050] The target current requirement refers to the target current value that the fuel cell engine needs to achieve after loading. Its specific value can be set according to actual needs and is not specifically limited here. It is important to note that the target current requirement is greater than the initial current value before loading.

[0051] Specifically, during the loading process, the current of the fuel cell engine is affected by various factors such as the gas supply, temperature, pressure, and humidity in the system. By combining these factors under the current system operating conditions, the maximum limit of the current loaded by the fuel cell engine can be calculated, i.e., the current loading threshold. The current loading threshold of the fuel cell engine may vary under different operating conditions and can be a pre-calculated current value obtained from a table. After obtaining the target current requirement, it can be compared with the current loading threshold. Based on the comparison result, the current loading rate of the fuel cell engine can be adjusted to ensure that the system clock remains stable during the loading process, avoiding problems such as insufficient gas supply and control overshoot caused by an excessively fast loading rate, while also shortening the loading process duration.

[0052] In this embodiment, the target demand current is obtained and compared with the current loading threshold. Then, the current loading rate of the fuel cell engine is adjusted according to the comparison result to load the current of the fuel cell engine to the target demand current. This can ensure that the fuel cell engine maintains a stable operating state during the loading process, avoid the problem of insufficient gas and control overshoot caused by the loading rate being too fast, and shorten the loading process time.

[0053] Optional, Figure 2 A flowchart of another loading method for a fuel cell engine provided in an embodiment of the present invention is shown below. Figure 2 As shown, the target current demand is compared with the current loading threshold, and the current loading rate of the fuel cell engine is adjusted according to the comparison result. This includes: if the target current demand is less than the current loading threshold, the current loading rate of the fuel cell engine is adjusted to a first loading ramp rate; if the target current demand is greater than or equal to the current loading threshold, the loading process of the fuel cell engine is divided into three stages, and the current loading rates in the three stages are adjusted sequentially to a second loading rate, a third loading rate, and a fourth loading rate, wherein the second and fourth loading rates are both less than the third loading rate. Therefore, the loading method of the fuel cell engine specifically includes the following steps:

[0054] S201, Obtain the target required current.

[0055] S202. Compare the target demand current with the current loading threshold. If the target demand current is less than the current loading threshold, proceed to step S203. If the target demand current is greater than or equal to the current loading threshold, proceed to step S204.

[0056] S203. Adjust the current loading rate of the fuel cell engine to the first loading slope rate.

[0057] The specific value of the first loading ramp rate can be set according to actual needs. While ensuring a smooth loading process, the first loading ramp rate can be increased to make the loading process complete quickly.

[0058] S204. The loading process of the fuel cell engine is divided into three stages, and the current loading rates in the three stages are adjusted to the second loading rate, the third loading rate and the fourth loading rate in sequence, wherein the second loading rate and the fourth loading rate are both less than the third loading rate.

[0059] The specific values ​​of the second loading rate, the third loading rate, and the fourth loading rate can be set according to actual needs, and the embodiments of the present invention do not impose specific limitations on them.

[0060] Specifically, the second and fourth loading rates are both set to be lower than the third loading rate. The purpose is to first load slowly at the second loading rate, controlling the response of the air compressor and hydrogen supply module to increase the gas intake of the reactants, thereby increasing the gas intake of the reactants and providing a good reaction environment for the subsequent loading process. Then, the third loading rate is used for rapid loading to shorten the duration of the entire loading process. Finally, the fourth loading rate is used for slow loading to prevent overshoot when the current reaches near the target current requirement, ensuring that the current is stably loaded to the target current requirement.

[0061] It should be noted that the second loading rate and the fourth loading rate may be the same or different, and the embodiments of the present invention do not impose specific limitations on this.

[0062] Optionally, the three stages include a first stage, a second stage, and a third stage in sequence; the loading method for the fuel cell engine further includes: in the first stage, loading the current of the fuel cell engine from the current current to a first current; in the second stage, loading the current of the fuel cell engine from the first current to a second current; in the third stage, loading the current of the fuel cell engine from the second current to the target demand current; wherein the difference between the first current and the current current is less than the difference between the second current and the first current, and the difference between the target demand current and the second current is less than the difference between the second current and the first current.

[0063] Specifically, in the first stage, the fuel cell engine current is applied from the current at a second loading rate, and the first stage loading process is completed when the fuel cell engine current reaches the first current. Then, in the second stage, the fuel cell engine current is applied from the first current to the second current at a third loading rate. Then, in the third stage, the fuel cell engine current is applied from the second current to the target demand current at a fourth loading rate, thus completing the entire loading process. Furthermore, by setting the difference between the first current and the current to be less than the difference between the second current and the first current, and the difference between the target demand current and the second current to be less than the difference between the second current and the first current, the current loading ranges in both the first and third stages are smaller than the current loading range in the second stage. Since the first stage is the loading start stage and the third stage is the loading end stage, while ensuring stable operation of the fuel cell engine during the loading start stage and preventing overshoot during the loading end stage, the loading ranges of the first and third stages can be minimized as much as possible. This allows the second stage to apply a larger current load at a larger loading rate, facilitating the rapid completion of the loading process.

[0064] Therefore, by controlling the loading in stages, the timeliness and accuracy of the loading process can be guaranteed, and precise control of each stage can be achieved. In the first stage, the loading is slow to prepare the reaction environment; in the second stage, the loading is fast to shorten the reaction time; and in the third stage, the loading is slow to reach the target value. This can avoid insufficient gas supply and overshoot near the target value in the early stage of the reaction, and can also shorten the loading time to the greatest extent.

[0065] Optional, Figure 3 A flowchart illustrating another loading method for a fuel cell engine provided in an embodiment of the present invention is shown below. Figure 3 As shown, the loading method for the fuel cell engine further includes: during the three-stage loading process of the fuel cell engine, obtaining the average single-cell voltage drop value of the fuel cell after each stage of loading is completed, and adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages based on the average single-cell voltage drop value. Therefore, the loading method for the fuel cell engine specifically includes the following steps:

[0066] S301, Obtain the target required current.

[0067] S302. Compare the target demand current with the current loading threshold. If the target demand current is less than the current loading threshold, proceed to step S303. If the target demand current is greater than or equal to the current loading threshold, proceed to step S304.

[0068] S303. Adjust the current loading rate of the fuel cell engine to the first loading ramp rate.

[0069] S304. The loading process of the fuel cell engine is divided into three stages, and the current loading rates in the three stages are adjusted to the second loading rate, the third loading rate and the fourth loading rate in sequence, wherein the second loading rate and the fourth loading rate are both less than the third loading rate.

[0070] S305. During the three-stage loading process of the fuel cell engine, obtain the average single-cell voltage drop value of the fuel cell after each stage is completed, and adjust the current loading rate of the fuel cell engine in the current stage and all subsequent stages based on the average single-cell voltage drop value.

[0071] Understandably, during the loading process of a fuel cell engine, as the current increases, the output voltage of the fuel cell will decrease. Thus, after each stage of current loading is completed, the average single-cell voltage drop of the fuel cell corresponding to that stage can be calculated by collecting the output voltage of the fuel cell before and after current loading; or the single-cell voltage monitoring module can collect the voltage of each fuel cell before and after current loading, calculate the average difference, and adjust the current loading rate of the fuel cell engine in the current stage and all subsequent stages based on the average single-cell voltage drop. The adjusted current loading rate of the fuel cell engine can remain at the original current loading rate or be smaller than the original current loading rate, which can be determined according to the specific situation of the average single-cell voltage drop. For example, if the current stage is the first stage, the current loading rate of the fuel cell engine in the first, second, and third stages can be adjusted based on the average single-cell voltage drop value obtained after the first stage ends; if the current stage is the second stage, the current loading rate of the fuel cell engine in the second and third stages can be adjusted based on the average single-cell voltage drop value obtained after the second stage ends; if the current stage is the third stage, the current loading rate of the fuel cell engine in the third stage can be adjusted based on the average single-cell voltage drop value obtained after the third stage ends.

[0072] Optional, continue to refer to Figure 3 The current loading rate of the fuel cell engine is adjusted according to the average cell voltage drop value in the current stage and all subsequent stages, including steps S306 and S307.

[0073] S306. If the average cell voltage drop is greater than or equal to a preset threshold after the current stage is completed, adjust the current loading rate of the fuel cell engine in the current stage and all subsequent stages, and the adjusted current loading rate is less than the original current loading rate of the corresponding stage.

[0074] S307. If the average cell voltage drop is less than a preset threshold after the current stage is completed, adjust the current loading rate of the fuel cell engine in the current stage and all subsequent stages to maintain the original current loading rate.

[0075] The specific value of the preset threshold can be set according to the actual situation, or it can be obtained by looking up a table to find the theoretical average voltage drop value corresponding to different current loading ranges. No specific limitation is made here. It should be noted that the current loading range is different at different stages, and the specific value of the corresponding preset threshold will also be different.

[0076] Specifically, after the current loading stage is completed, the average cell voltage drop is compared with a preset threshold corresponding to the current loading range of that stage. If the average cell voltage drop is greater than or equal to the preset threshold, it indicates that the current loading rate of that stage is too high. The current loading rate of the fuel cell engine in the current stage and all subsequent stages can be adjusted, and the adjusted current loading rate should be lower than the original current loading rate for the corresponding stage. This allows for a smaller loading rate in subsequent current loading stages, ensuring stable operation of the fuel cell engine. Conversely, if the average cell voltage drop is less than the preset threshold, it indicates that the fuel cell performance is good and the loading in this stage is within a reasonable range. The current loading rate of the fuel cell engine in the current stage and all subsequent stages can be adjusted to maintain the original current loading rate.

[0077] Optional, Figure 4 A flowchart illustrating another loading method for a fuel cell engine provided in an embodiment of the present invention is shown below. Figure 4As shown, the three stages include the first stage, the second stage, and the third stage in sequence. If the average cell voltage drop is greater than or equal to a preset threshold after the current stage is completed, the current loading rate of the fuel cell engine in the current stage and all subsequent stages is adjusted, including: when the first stage is completed and the average cell voltage drop is determined to be greater than or equal to the first preset threshold, the current loading rate of the fuel cell engine in the first, second, and third stages is adjusted to the fifth loading rate, the sixth loading rate, and the seventh loading rate in sequence, where the ratio of the fifth loading rate to the second loading rate, the ratio of the sixth loading rate to the third loading rate, and the ratio of the seventh loading rate to the fourth loading rate are the same, and the ratio is less than 1; then the second stage is performed. Loading is performed, and upon completion of the second stage of loading, when the average cell voltage drop is determined to be greater than or equal to a second preset threshold, the current loading rate of the fuel cell engine in the second and third stages is adjusted to the eighth and ninth loading rates, respectively. The ratio of the eighth loading rate to the sixth loading rate and the ratio of the ninth loading rate to the seventh loading rate are the same, and these ratios are less than 1. Furthermore, the eighth loading rate is greater than the second and fifth loading rates. Loading is then performed in the third stage, and upon completion of the third stage of loading, when the average cell voltage drop is determined to be greater than or equal to a third preset threshold, the current loading rate of the fuel cell engine in the third stage is adjusted to the tenth loading rate. The ratio of the tenth loading rate to the ninth loading rate is less than 1. Therefore, the fuel cell engine loading method specifically includes the following steps:

[0078] S401, Obtain the target required current.

[0079] S402. Compare the target demand current with the current loading threshold. If the target demand current is less than the current loading threshold, proceed to step S403. If the target demand current is greater than or equal to the current loading threshold, proceed to step S404.

[0080] S403. Adjust the current loading rate of the fuel cell engine to the first loading ramp rate.

[0081] S404. The loading process of the fuel cell engine is divided into three stages, and the current loading rates in the three stages are adjusted to the second loading rate, the third loading rate and the fourth loading rate in sequence, wherein the second loading rate and the fourth loading rate are both less than the third loading rate.

[0082] S405. During the three-stage loading process of the fuel cell engine, obtain the average single-cell voltage drop of the fuel cell after each stage of loading is completed.

[0083] S406. When the loading is completed in the first stage and the average cell voltage drop is determined to be greater than or equal to the first preset threshold, the current loading rate of the fuel cell engine in the first stage, the second stage and the third stage is adjusted to the fifth loading rate, the sixth loading rate and the seventh loading rate in sequence. The ratio of the fifth loading rate to the second loading rate, the ratio of the sixth loading rate to the third loading rate and the ratio of the seventh loading rate to the fourth loading rate are the same and the ratio is less than 1.

[0084] The first preset threshold can be set according to the actual situation.

[0085] It should be noted that the specific value of the ratio of the fifth loading rate to the second loading rate can be set according to actual needs, and no specific limit is made here, for example, 0.8.

[0086] S407. Perform the second stage loading, and when the second stage loading is completed and the average cell voltage drop value is determined to be greater than or equal to the second preset threshold, adjust the current loading rate of the fuel cell engine in the second stage and the third stage to the eighth loading rate and the ninth loading rate, respectively. The ratio of the eighth loading rate to the sixth loading rate and the ratio of the ninth loading rate to the seventh loading rate are the same, and the ratio is less than 1. The eighth loading rate is greater than the second loading rate and the fifth loading rate.

[0087] The second preset threshold can be set according to the actual situation.

[0088] S408. Perform the third stage loading, and when the third stage loading is completed and the average cell voltage drop value is determined to be greater than or equal to the third preset threshold, adjust the current loading rate of the fuel cell engine in the third stage to the tenth loading rate, wherein the ratio of the tenth loading rate to the ninth loading rate is less than 1.

[0089] The third preset threshold can be set according to the actual situation.

[0090] S409. If the average cell voltage drop is less than a preset threshold after the current stage is completed, adjust the current loading rate of the fuel cell engine in the current stage and all subsequent stages to maintain the original current loading rate.

[0091] Specifically, when the first stage of loading is completed and the average cell voltage drop is greater than or equal to the first preset threshold, it indicates that the current loading rate of the first stage is too high. At this time, the current loading rates of the fuel cell engine in the first, second, and third stages can be adjusted to the fifth, sixth, and seventh loading rates, respectively. The adjusted fifth loading rate of the first stage is less than the second loading rate and is stored so that the adjusted fifth loading rate can be used in the next first stage loading. The adjusted sixth loading rate of the second stage is less than the third loading rate, and the seventh loading rate of the third stage is less than the fourth loading rate. When the second stage loading is not performed, the ratio of the fifth loading rate to the second loading rate, the ratio of the sixth loading rate to the third loading rate, and the ratio of the seventh loading rate to the fourth loading rate can be set to be the same. That is, the third loading rate of the second stage and the fourth loading rate of the third stage are adjusted in the same proportion as the ratio of the fifth loading rate to the second loading rate of the first stage. Conversely, if the loading is completed in the first stage and the average cell voltage drop is less than the first preset threshold, it indicates that the fuel cell is performing well and the loading in the first stage is within a reasonable range. The current loading rate of the fuel cell engine in the current stage and all subsequent stages can be adjusted to maintain the original current loading rate, that is, the first stage maintains the second loading rate, the second stage maintains the third loading rate, and the third stage maintains the fourth loading rate.

[0092] Then, the second-stage loading process will be carried out at the adjusted sixth or third loading rate. Upon completion of the second stage loading, if the average cell voltage drop is greater than or equal to the second preset threshold, it indicates that the current loading rate in this stage is too high. At this point, the current loading rates of the fuel cell engine in the second and third stages can be adjusted to the eighth and ninth loading rates, respectively. The eighth loading rate of the second stage can be stored for future use in the second stage loading. In the subsequent third stage, the adjusted ninth loading rate will be used. It is important to note that the ratio of the eighth to the sixth loading rate and the ratio of the ninth to the seventh loading rate are the same, and this ratio is less than 1. The specific value of this ratio can be set according to actual needs and is not specifically limited here. Simultaneously, the eighth loading rate should always be greater than the second and fifth loading rates of the first stage. Conversely, if the second stage of loading is completed and the average cell voltage drop is less than the second preset threshold, it indicates that the fuel cell is performing well and the second stage loading is within a reasonable range. The current loading rate of the fuel cell engine in the current stage and all subsequent stages can be adjusted to maintain the original current loading rate, that is, the second stage loading rate is maintained at the sixth loading rate or the third loading rate.

[0093] Next, the third stage loading process will be carried out at the adjusted ninth, fourth, or seventh loading rate. If the third stage loading is completed and the average cell voltage drop is greater than or equal to the third preset threshold, it indicates that the current loading rate in this stage is too high. In this case, the current loading rate of the fuel cell engine in the third stage can be adjusted to the tenth loading rate, and the ratio of the tenth loading rate to the ninth loading rate is less than 1. The specific value of this ratio can be set according to actual needs and is not specifically limited here. Conversely, if the third stage loading is completed and the average cell voltage drop is less than the third preset threshold, it indicates that the fuel cell performance is good and the third stage loading is within a reasonable range. The current loading rate of the fuel cell engine in the current stage can be adjusted to maintain the original current loading rate, that is, the third stage loading rate is maintained at the ninth, fourth, or seventh loading rate.

[0094] Optional, Figure 5 A flowchart illustrating another loading method for a fuel cell engine provided in an embodiment of the present invention is shown below. Figure 5 As shown, the fuel cell engine loading method further includes: during the process of loading the fuel cell engine current to the target demand current, controlling the airflow rate of change to be greater than or equal to the current loading rate. Therefore, the method specifically includes the following steps:

[0095] S501, Obtain the target required current.

[0096] S502. Compare the target demand current with the current loading threshold, and adjust the current loading rate of the fuel cell engine according to the comparison result to load the current of the fuel cell engine to the target demand current, wherein the current loading threshold is the maximum limit of the current loaded by the fuel cell engine.

[0097] S503. During the process of loading the current of the fuel cell engine to the target required current, the rate of change of airflow is controlled to be greater than or equal to the current loading rate.

[0098] Understandably, during the current loading process of a fuel cell engine, in order to ensure the stability and reliability of the loading process, it is necessary to simultaneously increase the intake of reactants. Considering that the intake of hydrogen is less affected by the equipment, it can be assumed that the intake of hydrogen can meet the needs of the entire loading process. As for air, due to the influence of its own speed and other factors, the air compressor may cause problems such as insufficient air supply leading to unreasonable reactant ratios. Therefore, it is necessary to control the rate of change of air flow to be greater than or equal to the current loading rate to ensure that the entire loading process proceeds smoothly and rapidly, thereby ensuring the reliable operation of the fuel cell engine.

[0099] Based on the same inventive concept, embodiments of the present invention also provide a loading device for a fuel cell engine. Figure 6 This is a schematic diagram of the structure of a loading device for a fuel cell engine provided in an embodiment of the present invention, as shown below. Figure 6 As shown, the control device includes: a data acquisition module 10 for acquiring the target demand current; and a current loading rate adjustment module 20 for comparing the target demand current with a current loading threshold and adjusting the current loading rate of the fuel cell engine according to the comparison result, so as to load the current of the fuel cell engine to the target demand current, wherein the current loading threshold is the maximum limit of the current loaded by the fuel cell engine.

[0100] In this embodiment, the target demand current is acquired by the data acquisition module 10 and sent to the current loading rate adjustment module 20. The current loading rate adjustment module 20 compares the target demand current with the current loading threshold and then adjusts the current loading rate of the fuel cell engine according to the comparison result to load the current of the fuel cell engine to the target demand current. This can ensure that the system clock of the fuel cell engine remains stable during the loading process, avoid the problem of insufficient gas and control overshoot caused by the loading rate being too fast, and shorten the loading process time.

[0101] In addition, this embodiment also provides a vehicle. Figure 7 This is a schematic diagram of the structure of a vehicle provided in an embodiment of the present invention, such as... Figure 7 As shown, the vehicle includes a processor 910, a memory 920, an input device 930, and an output device 940; the number of processors 910 in the vehicle can be one or more, and the processors 910, memory 920, input devices 930, and output devices 940 in the vehicle can be connected by a bus or other means.

[0102] The memory 920, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as the program instructions or modules corresponding to the fuel cell engine loading method in this embodiment of the invention (the data acquisition module 10 and the current loading rate adjustment module 20 in the fuel cell engine loading device). The processor 910 executes various functional applications and data processing of the vehicle by running the software programs, instructions, and modules stored in the memory 920, thereby realizing the aforementioned fuel cell engine loading method.

[0103] The memory 920 may primarily include a program storage area and a data storage area. The program storage area may store the operating system and at least one application program required for a given function; the data storage area may store data created based on terminal usage. Furthermore, the memory 920 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 920 may further include memory remotely located relative to the processor 910, which can be connected to the vehicle via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0104] Input device 930 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the vehicle. Output device 940 may include display devices such as a display screen.

[0105] This invention also provides a computer-readable storage medium storing computer instructions that, when executed by a processor, implement the loading method of the fuel cell engine provided in any of the above embodiments.

[0106] Based on the above description of the implementation methods, those skilled in the art can clearly understand that the present invention can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.

[0107] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for loading a fuel cell engine, characterized in that, include: Obtain the target required current; The target current requirement is compared with the current loading threshold, and the current loading rate of the fuel cell engine is adjusted according to the comparison result to load the current of the fuel cell engine to the target current requirement, wherein the current loading threshold is the maximum limit of the current currently loaded by the fuel cell engine. The process of comparing the target current requirement with a current loading threshold and adjusting the current loading rate of the fuel cell engine based on the comparison result includes: If the target current requirement is less than the current loading threshold, the current loading rate of the fuel cell engine is adjusted to the first loading rate. If the target current requirement is greater than or equal to the current loading threshold, the loading process of the fuel cell engine is divided into three stages, and the current loading rate in the three stages is adjusted to the second loading rate, the third loading rate and the fourth loading rate in sequence, wherein the second loading rate and the fourth loading rate are both less than the third loading rate. During the three-stage loading process of the fuel cell engine, the average single-cell voltage drop of the fuel cell is obtained after each stage is completed, and the current loading rate of the fuel cell engine in the current stage and all subsequent stages is adjusted according to the average single-cell voltage drop. Adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages based on the average cell voltage drop, including: If the average cell voltage drop is greater than or equal to a preset threshold after the current stage is completed, the current loading rate of the fuel cell engine in the current stage and all subsequent stages is adjusted, and the adjusted current loading rate is less than the original current loading rate of the corresponding stage. If the average cell voltage drop is less than the preset threshold after the current stage is completed, the current loading rate of the fuel cell engine in the current stage and all subsequent stages shall be adjusted to maintain the original current loading rate.

2. The loading method for a fuel cell engine according to claim 1, characterized in that, The three stages are, in turn, the first stage, the second stage, and the third stage; If, after the current stage of loading is completed, the average cell voltage drop is greater than or equal to a preset threshold, the current loading rate of the fuel cell engine in the current stage and all subsequent stages is adjusted, including: When the loading is completed in the first stage and the average cell voltage drop is determined to be greater than or equal to the first preset threshold, the current loading rate of the fuel cell engine in the first stage, the second stage and the third stage is adjusted to the fifth loading rate, the sixth loading rate and the seventh loading rate in sequence. The ratio of the fifth loading rate to the second loading rate, the ratio of the sixth loading rate to the third loading rate and the ratio of the seventh loading rate to the fourth loading rate are the same and the ratio is less than 1. When the second stage of loading is performed and the loading is completed in the second stage, and when it is determined that the average single-cell voltage drop value is greater than or equal to the second preset threshold, the current loading rate of the fuel cell engine in the second stage and the third stage is adjusted to the eighth loading rate and the ninth loading rate in sequence. The ratio of the eighth loading rate to the sixth loading rate and the ratio of the ninth loading rate to the seventh loading rate are the same and the ratio is less than 1. The eighth loading rate is greater than the second loading rate and the fifth loading rate. When the third stage of loading is performed and the loading is completed in the third stage, and when it is determined that the average cell voltage drop value is greater than or equal to the third preset threshold, the current loading rate of the fuel cell engine in the third stage is adjusted to the tenth loading rate, wherein the ratio of the tenth loading rate to the ninth loading rate is less than 1.

3. The loading method for a fuel cell engine according to claim 1, characterized in that, Also includes: During the process of applying current to the fuel cell engine to the target required current, the rate of change of airflow is controlled to be greater than or equal to the current application rate.

4. A loading device for a fuel cell engine, used to perform the loading method for a fuel cell engine as described in any one of claims 1-3, characterized in that, include: The data acquisition module is used to acquire the target required current. The current loading rate adjustment module is used to compare the target demand current with the current loading threshold, and adjust the current loading rate of the fuel cell engine according to the comparison result, so as to load the current of the fuel cell engine to the target demand current, wherein the current loading threshold is the maximum limit of the current currently loaded by the fuel cell engine.

5. A vehicle, characterized in that, include: One or more processors; Storage device, on which one or more programs are stored, When the one or more programs are executed by the one or more processors, the one or more processors implement the loading method of the fuel cell engine as described in any one of claims 1-3.

6. A computer-readable medium, characterized in that, It stores a computer program, wherein when the program is executed by a processor, it implements the loading method of the fuel cell engine as described in any one of claims 1-3.

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