Output power control method and device of vehicle-mounted fuel cell, vehicle and medium

Abstract

The invention provides an output power control method and device of a vehicle-mounted fuel cell, a vehicle and a medium, the method is applied to the vehicle comprising the vehicle-mounted fuel cell and a vehicle-mounted power cell which are connected in parallel, and the method comprises the steps that the number of times of triggering a charge threshold value by the charge state of the vehicle-mounted power cell is determined in the running process of the vehicle; adjusting the charge threshold value of the vehicle-mounted power battery according to the number of times of triggering the charge threshold value by the charge state of the vehicle-mounted power battery; and adjusting the output power of the vehicle-mounted fuel cell according to the adjusted charge threshold value of the vehicle-mounted power cell. According to the method, the output power of the fuel cell in different driving scenes can be adaptively adjusted, so that the power requirements in different driving scenes are met, and the energy management strategy of the fuel cell is optimized.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and more specifically, to an output power control method, device, vehicle and medium of a vehicle-mounted fuel cell in the field of vehicles. Background Art

[0002] In the related art, controlling the fuel cell through an extended-range energy management strategy can solve the problem of insufficient output power of the fuel cell. However, in actual applications, the use of an energy management strategy requires manual calibration of vehicles in different driving scenarios in advance, which increases investment costs and makes it difficult to cover all driving scenarios, resulting in the inability to effectively manage the fuel cell. Summary of the invention

[0003] The present application provides a method, device, vehicle and medium for controlling the output power of a vehicle-mounted fuel cell. The method can adaptively adjust the output power of the fuel cell, thereby meeting the power requirements of the output power of the vehicle-mounted fuel cell in different scenarios.

[0004] In a first aspect, a method for controlling the output power of a vehicle-mounted fuel cell is provided, which is applicable to a vehicle including a vehicle-mounted fuel cell and a vehicle-mounted power battery connected in parallel, and the method comprises:

[0005] Determining the number of times the state of charge of the on-board power battery triggers a charge threshold during vehicle operation;

[0006] adjusting the charge threshold of the on-board power battery according to the number of times the charge state of the on-board power battery triggers the charge threshold;

[0007] The output power of the on-vehicle fuel cell is adjusted according to the adjusted charge threshold of the on-vehicle power battery.

[0008] Through the above technical scheme, the charge threshold of the vehicle power battery can be adjusted according to the charge state of the vehicle power battery, and the output power of the fuel cell can be adaptively adjusted to optimize the energy management strategy of the fuel cell, so that the output power of the fuel cell can meet the power requirements in different scenarios.

[0009] In combination with the first aspect, in some possible implementations, the charge threshold includes an upper threshold and a lower threshold.

[0010] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the first number of times the charge state of the vehicle power battery triggers the upper limit threshold is determined, and the second number of times the charge state of the vehicle power battery triggers the lower limit threshold is determined.

[0011] In combination with the first aspect and the above-mentioned implementations, in some possible implementations, when the first number of times the charge state of the on-board power battery triggers the upper limit threshold is greater than or equal to a first set threshold, the upper limit threshold is adjusted.

[0012] In combination with the first aspect and the above implementations, in some possible implementations, the upper limit threshold is lowered.

[0013] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, when the second number of times the state of charge of the on-board power battery is less than or equal to the lower limit threshold is greater than or equal to the second set threshold, the lower limit threshold is adjusted.

[0014] In combination with the first aspect and the above implementations, in some possible implementations, the lower limit threshold is increased.

[0015] In a second aspect, an output power control device for a vehicle-mounted fuel cell is provided, which is applicable to a vehicle including a vehicle-mounted fuel cell and a vehicle-mounted power battery connected in parallel, and the device comprises:

[0016] A determination module, used to determine the number of times the state of charge of the on-board power battery triggers a charge threshold during vehicle operation;

[0017] A first adjustment module, configured to adjust a charge threshold of the on-board power battery according to the number of times the charge state of the on-board power battery triggers the charge threshold;

[0018] The second regulating module is used to regulate the output power of the on-vehicle fuel cell according to the adjusted charge threshold of the on-vehicle power battery.

[0019] In a third aspect, a vehicle is provided, comprising a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the method in the first aspect or any possible implementation of the first aspect is implemented.

[0020] In a fourth aspect, a computer program product is provided, comprising: a computer program code, which, when executed on a computer, enables the computer to execute the method in the first aspect or any possible implementation of the first aspect.

[0021] In a fifth aspect, a computer-readable storage medium is provided, which stores a computer program code. When the computer program code runs on a computer, the computer executes the method in the above-mentioned first aspect or any possible implementation manner of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1is a schematic flow chart of an output power control method of a vehicle-mounted fuel cell in an embodiment;

[0023] Figure 2 is a schematic flow chart of an extended-range energy management strategy in an application embodiment;

[0024] Figure 3 The diagram is a schematic diagram of the structure of an output power control device for a vehicle-mounted fuel cell in an embodiment. DETAILED DESCRIPTION

[0025] The technical solution in the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0026] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0027] In the relevant technology, the combination of engine and generator is the most widely used structure of extended-range electric vehicles. By adding an additional energy system to the vehicle, the vehicle's cruising range can be extended. The extended-range management of the vehicle includes energy switching control, energy management, vehicle driving mode selection, energy efficiency optimization, fault diagnosis and maintenance, etc., which need to adapt to the changing and complex driving scenarios. In practical applications, extended-range management requires manual intervention and adjustment to optimize the performance and parameter configuration of extended-range management, which involves manual adjustment and calibration of extended-range control strategies, energy management logic, and vehicle driving modes. Therefore, in order to be able to perform extended-range management for different driving scenarios, manual calibration is required in different driving scenarios, which increases the cost of fuel cell energy management, and the driving scenarios for manual calibration are limited, resulting in the inability to perform extended-range management for each driving scenario.

[0028] Range-extended vehicles are usually equipped with onboard fuel cells and onboard power batteries connected in parallel. The onboard fuel cells and onboard power batteries work together to achieve optimal energy utilization and performance. Among them, the onboard power battery can serve as an auxiliary power source for the onboard fuel cell. When the vehicle needs additional power, the onboard power battery can provide high power output to meet high power requirements such as instantaneous acceleration or climbing. When the power generated by the onboard fuel cell exceeds the vehicle's needs, the excess electrical energy can be converted into chemical energy and stored in the onboard power battery. The onboard power battery can release the stored energy when needed to meet the vehicle's power needs and improve energy utilization efficiency.

[0029] The implementation details of the technical solution of the embodiment of the present application are described in detail below.

[0030] Figure 1 It is a schematic flow chart of an output power control method of a vehicle-mounted fuel cell provided in an embodiment of the present application.

[0031] For example, Figure 1 As shown, the method includes:

[0032] Step S101, determining the number of times the state of charge of the vehicle power battery triggers a charge threshold during vehicle operation.

[0033] Here, the state of charge (SOC) of the power battery indicates the ratio between the current power battery charge capacity and the full charge capacity, usually expressed as a percentage. The state of charge is an important parameter used to measure the available energy of the power battery. For example, when the state of charge is 100%, it means that the power battery is fully charged; when the state of charge is 0%, it means that the power battery is completely discharged.

[0034] The charge threshold refers to the critical point or limit of the power battery's charging state, which is used to determine the charging or discharging of the power battery. The setting of the charge threshold can protect the power battery from damage caused by overcharging or overdischarging, and optimize the battery's life and performance. The charge threshold varies according to factors such as the type of power battery, application field, and design requirements.

[0035] In practical applications, monitoring and understanding the state of charge of the power battery can determine the remaining energy of the power battery, so that the battery can be charged or used as needed. During the operation of the vehicle, the number of times the state of charge of the on-board power battery triggers the charge threshold is monitored, and the state of charge of the power battery is compared with the charge threshold to determine whether the state of charge of the power battery triggers the charge threshold, and the corresponding number of times is recorded. It should be noted that the charge threshold here is the charge threshold currently set for the on-board power battery.

[0036] In one embodiment of the present application, the charge threshold includes an upper threshold and a lower threshold, wherein the upper threshold may be a charge threshold, which is used to determine when to stop charging to avoid overcharging of the power battery, and is usually set to be close to the full charge capacity of the power battery, such as 95% or 98%. The lower threshold may be a discharge threshold, which is used to determine when to stop discharging to avoid over-discharging of the power battery, and is usually set to be close to the empty discharge capacity of the battery, such as 5% or 10%.

[0037] In one embodiment of the present application, the state of charge of the power battery is monitored to see whether it is greater than or equal to an upper threshold value, and a first number of times the state of charge of the power battery triggers the upper threshold value during the operation of the vehicle is determined. At the same time, the state of charge of the power battery is monitored to see whether it is less than or equal to a lower threshold value, and a second number of times the state of charge of the power battery triggers the lower threshold value during the operation of the vehicle is determined.

[0038] Step S102 , adjusting the charge threshold of the vehicle power battery according to the number of times the charge state of the vehicle power battery triggers the charge threshold.

[0039] It is understandable that the initial value of the charge threshold is pre-set before the power battery leaves the factory. However, with the different operating scenarios of the vehicle or the different usage time of the power battery, the charge threshold may not match the actual situation of the power battery. In this embodiment, the number of times the charge state of the on-board power battery triggers the charge threshold can reflect the actual changes of the on-board power battery during the operation of the vehicle, and then according to the number of times the charge threshold is triggered, an appropriate charge threshold can be set for the on-board power battery. Among them, the adjusted charge state of the on-board power battery can avoid overcharging or over-discharging of the power battery, thereby avoiding power battery capacity loss, performance degradation and shortened life. At the same time, the adjusted on-board power battery can help keep the power battery operating within a safe range, thereby avoiding safety risks caused by overcharging of the power battery.

[0040] It should be noted that in different driving scenarios, the power demand for the on-board power battery is different, so that in different driving scenarios, the number of times the charge threshold of the on-board power battery is triggered is also different, so that the charge threshold of the on-board power battery can be adjusted by the number of times the charge threshold of the on-board power battery is triggered, so that the threshold of the on-board power battery can be adapted to the current driving scenario, that is, step S102 can adjust the charge threshold of the on-board power battery according to the current driving scenario. For example, assuming that the vehicle is in a fully loaded state, during the driving process of the vehicle, the power demand for the on-board power battery is large, and the charge of the on-board power battery will be frequently consumed, resulting in multiple triggering of the lower limit threshold of the on-board power battery. It is necessary to adjust the lower limit threshold of the on-board power battery to avoid excessive discharge of the on-board power battery, so that the current charge threshold of the on-board power battery can be adjusted to the charge threshold adapted to the full-load operation scenario.

[0041] In one embodiment of the present application, when the state of charge of the vehicle-mounted power battery triggers the upper limit threshold multiple times, the upper limit threshold needs to be adjusted. In this embodiment, a first set threshold is set, wherein the first set threshold can be adjusted according to actual conditions, and it is determined whether the first number of times the state of charge of the power battery triggers the upper limit threshold is greater than or equal to the first set threshold. When the first number is greater than or equal to the first set threshold, the upper limit threshold needs to be adjusted, and when the first number is less than the first set threshold, the original upper limit threshold is temporarily maintained, and the state of charge of the power battery is continuously monitored, so that when it is determined that the working condition of the power battery has changed, the upper limit threshold can be adjusted in time.

[0042] In one embodiment of the present application, when the first number is greater than or equal to the first set threshold, the upper threshold is lowered. Here, lowering the upper threshold of the power battery can increase the available energy range of the power battery, can reserve more battery capacity as backup energy, prevent the power battery from continuing to charge after it is full, reduce the risk of overcharging the power battery, reduce the rate of power attenuation, and avoid adverse effects on the life of the power battery. In addition, retaining a portion of the battery capacity can cope with sudden energy demands or provide a longer cruising range. For example, when the vehicle is in an unloaded state, the power demand for the on-board power battery is relatively low, resulting in the frequent triggering of the upper threshold of the on-board power battery during the vehicle's driving process. By lowering the upper threshold, the on-board power battery is avoided from being overcharged. In this embodiment, the upper threshold of the power battery can be automatically adjusted according to the first number, wherein the adjusted upper threshold of the power battery is applicable to the current driving scene, so that even if the driving scene of the vehicle changes, the upper threshold of the on-board power battery can be automatically adjusted according to the comparison between the first number and the first set threshold, so that the upper threshold of the on-board power battery can be adapted to the current driving scene, ensuring the power demand of the power battery in different driving scenes.

[0043] In one embodiment of the present application, when the state of charge of the vehicle-mounted power battery triggers the lower limit threshold multiple times, the lower limit threshold needs to be adjusted. In this embodiment, a second set threshold is set, wherein the second set threshold can be adjusted according to actual conditions, and it is determined whether the second number of times the state of charge of the power battery triggers the lower limit threshold is greater than or equal to the second set threshold. When the second number is greater than or equal to the second set threshold, the lower limit threshold needs to be adjusted, and when the second number is less than the second set threshold, the original lower limit threshold is temporarily maintained, and the state of charge of the power battery is continuously monitored, so that the lower limit threshold can be adjusted in time when the working condition of the power battery changes.

[0044] In one embodiment of the present application, when the second number is greater than or equal to the second set threshold, the lower threshold is increased. Here, increasing the lower threshold of the power battery can prevent the power battery from operating in an over-discharged state, avoid causing the power battery to have too low a voltage, lose capacity, or damage the power battery, reduce damage to the power battery capacity and cycle life, increase the stability and safety of the power battery, and at the same time ensure that the power battery operates at a higher charge level, avoiding the performance degradation of the power battery in a low charge state. For example, when the vehicle is fully loaded, the power demand for the on-board power battery is relatively high, resulting in the on-board power battery being easily consumed during the vehicle's driving, which will frequently trigger the lower threshold of the on-board power battery. By raising the lower threshold, excessive discharge of the on-board power battery can be avoided. In this embodiment, the lower limit threshold of the power battery can be automatically adjusted according to the second number, wherein the adjusted lower limit threshold of the power battery is suitable for the current driving scenario. Therefore, even if the driving scenario of the vehicle changes, the lower limit threshold of the vehicle-mounted power battery can be automatically adjusted according to the comparison between the second number and the second set threshold, so that the lower limit threshold of the vehicle-mounted power battery can be adapted to the driving scenario of the vehicle, thereby ensuring the power demand of the power battery in different driving scenarios.

[0045] Step S103, adjusting the output power of the on-vehicle fuel cell according to the adjusted charge threshold of the on-vehicle power battery.

[0046] Here, the output power of the fuel cell is controlled according to the adjusted charge threshold. In this embodiment, the output power of the fuel cell can be affected after adjusting the charge threshold, so that more efficient use of the energy of the fuel cell can be achieved. For example, when the charge threshold changes, the output power of the fuel cell can be adaptively changed when the vehicle is running under different driving requirements and road conditions, and the power requirements in different driving scenarios can be met, thereby balancing the driving mileage and battery efficiency, optimizing the energy management strategy of the fuel cell, and improving the energy utilization rate of the fuel cell.

[0047] In practical applications, the output power of the vehicle fuel cell is adjusted according to the charge threshold value after the power battery is adjusted, so that the power battery can work within the appropriate charge threshold value to extend the life of the power battery, and prevent the power battery from frequent charging and discharging or exceeding the working range of the power battery. At the same time, the output power of the vehicle fuel cell is adjusted to protect the power battery while meeting the power requirements of different scenarios. For example, if the upper limit threshold of the vehicle power battery is lowered, the vehicle fuel cell will bear a greater load, so that the vehicle fuel cell will provide a greater output power; if the lower limit of the vehicle power battery is raised, it will be more inclined to use the vehicle power battery to meet the power demand, reducing the load of the vehicle fuel cell, so that the output power of the vehicle fuel cell is reduced.

[0048] In summary, the output power control method of the vehicle-mounted fuel cell of the present application can count the number of times the charge state of the power battery triggers the charge threshold, and automatically adjust the charge threshold of the vehicle-mounted power battery according to the counted number of times, and can adjust the output power of the fuel cell according to the adjusted charge threshold, so that the vehicle can manage the energy of the fuel cell in different driving scenarios, and adaptively adjust the output power of the fuel cell to ensure that the fuel cell can meet the power requirements in different scenarios.

[0049] Figure 2 It is a schematic flow chart of an extended-range energy management strategy provided by an application embodiment of the present application.

[0050] Step 1: determine the charge threshold of the power battery, wherein the charge threshold here refers to the current charge threshold of the power battery, and the charge threshold includes an upper threshold and a lower threshold.

[0051] Step 2a, determining whether a first number of times the upper limit threshold is triggered is greater than or equal to a first set threshold.

[0052] Step 3a: when the first number of times the upper limit threshold is triggered is greater than or equal to the first set threshold, lower the upper limit threshold.

[0053] Step 2b, determining whether the second number of times the lower limit threshold is triggered is greater than or equal to the second set threshold.

[0054] Step 3b: when the second number of times the lower limit threshold is triggered is greater than or equal to the second set threshold, increase the lower limit threshold.

[0055] Step 4: Control the output power of the fuel cell according to the adjusted charge threshold.

[0056] Figure 3 It is a structural schematic diagram of an output power control device for a vehicle-mounted fuel cell provided in an embodiment of the present application.

[0057] For example, Figure 3 As shown, the output power control device 300 of the vehicle-mounted fuel cell is applied to a vehicle including a vehicle-mounted fuel cell and a vehicle-mounted power battery connected in parallel, wherein the output power control device 300 of the vehicle-mounted fuel cell may include:

[0058] Determination module 301: used to determine the number of times the state of charge of the vehicle power battery triggers the charge threshold during vehicle operation;

[0059] The first adjustment module 302 is used to adjust the charge threshold of the vehicle power battery according to the number of times the charge state of the vehicle power battery triggers the charge threshold;

[0060] The second regulating module 303 is used to regulate the output power of the vehicle-mounted fuel cell according to the regulated charge threshold of the vehicle-mounted power battery.

[0061] In one embodiment, the charge threshold includes an upper threshold and a lower threshold.

[0062] In one embodiment, the determination module 301 is specifically used to determine a first number of times that the state of charge of the vehicle power battery triggers the upper threshold, and to determine a second number of times that the state of charge of the vehicle power battery triggers the lower threshold.

[0063] In one embodiment, the first adjustment module 302 is specifically configured to adjust the upper threshold when a first number of times that the state of charge of the vehicle-mounted power battery triggers the upper threshold is greater than or equal to a first set threshold.

[0064] In one embodiment, the first adjustment module 302 is specifically configured to reduce the upper threshold.

[0065] In one embodiment, the first adjustment module 302 is specifically used to adjust the lower limit threshold when the second number of times that the state of charge of the vehicle-mounted power battery is less than or equal to the lower limit threshold is greater than or equal to a second set threshold.

[0066] In one embodiment, the first adjustment module 302 is specifically configured to increase the lower threshold.

[0067] The embodiment of the present application also provides a vehicle. It should be understood that the above-mentioned vehicle-mounted fuel cell output power control method can be applied to the vehicle. In practical applications, the vehicle-mounted fuel cell output power control method can be implemented by an electric drive system control module, which is responsible for monitoring and controlling the operation of components such as power batteries and fuel cells, monitoring the number of times the charge state of the power battery triggers the charge threshold, and then adjusting the charge threshold according to the number of triggers, and finally controlling the output power of the fuel cell, which can coordinate the operation of various components, ensure the effective management of the fuel cell energy and optimize energy utilization.

[0068] In addition, an embodiment of the present application also protects a device, which may include a memory and a processor, wherein the memory stores executable program code, and the processor is used to call and execute the executable program code to execute the output power control method of the vehicle-mounted fuel cell provided in the embodiment of the present application.

[0069] In this embodiment, the functional modules of the device can be divided according to the above method example. For example, each functional module can be corresponded, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0070] In the case of dividing each functional module according to each function, the device may also include a determination module, a first adjustment module, a second adjustment module, etc. It should be noted that all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.

[0071] It should be understood that the device provided in this embodiment is used to execute the above-mentioned output power control method of a vehicle-mounted fuel cell, and thus can achieve the same effect as the above-mentioned implementation method.

[0072] In the case of an integrated unit, the device may include a processing module and a storage module. When the device is applied to a vehicle, the processing module may be used to control and manage the actions of the vehicle. The storage module may be used to support the vehicle in executing mutual program codes, etc.

[0073] The processing module may be a processor or a controller, which may implement or execute various exemplary logic blocks, modules and circuits disclosed in the present application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, etc. The storage module may be a memory.

[0074] In addition, the device provided in the embodiments of the present application may specifically be a chip, a component or a module, and the chip may include a connected processor and a memory; wherein the memory is used to store instructions, and when the processor calls and executes the instructions, the chip can execute the output power control method of the vehicle fuel cell provided in the above embodiments.

[0075] This embodiment also provides a computer-readable storage medium, which stores computer program code. When the computer program code runs on a computer, the computer executes the above-mentioned related method steps to implement an output power control method for a vehicle-mounted fuel cell provided in the above embodiment.

[0076] This embodiment also provides a computer program product. When the computer program product is run on a computer, the computer is caused to execute the above-mentioned related steps to implement the output power control method of a vehicle-mounted fuel cell provided in the above embodiment.

[0077] Among them, the device, computer-readable storage medium, computer program product or chip provided in this embodiment is used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method provided above, and will not be repeated here.

[0078] Through the description of the above implementation methods, technical personnel in the relevant field can understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0079] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0080] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for controlling the output power of a vehicle-mounted fuel cell, applicable to a vehicle including a vehicle-mounted fuel cell and a vehicle-mounted power battery connected in parallel, characterized in that: The method comprises: Determining the number of times the state of charge of the on-board power battery triggers a charge threshold during vehicle operation; adjusting the charge threshold of the on-board power battery according to the number of times the charge state of the on-board power battery triggers the charge threshold; The output power of the on-vehicle fuel cell is adjusted according to the adjusted charge threshold of the on-vehicle power battery.

2. The method according to claim 1, characterized in that The charge threshold includes an upper threshold and a lower threshold.

3. The method according to claim 2, characterized in that The determining, during vehicle operation, of the number of times the state of charge of the on-board power battery triggers a charge threshold value comprises: Determine a first number of times that the state of charge of the on-board power battery triggers the upper threshold, and determine a second number of times that the state of charge of the on-board power battery triggers the lower threshold.

4. The method according to claim 3, characterized in that The adjusting the threshold of the vehicle-mounted power battery according to the number of times the charge threshold is triggered by the charge state of the vehicle-mounted power battery includes: When the first number of times that the state of charge of the on-vehicle power battery triggers the upper limit threshold is greater than or equal to a first set threshold, the upper limit threshold is adjusted.

5. The method according to claim 4, characterized in that The adjusting the upper threshold includes: lowering the upper threshold.

6. The method according to claim 3, characterized in that The adjusting the charge threshold of the vehicle-mounted power battery according to the number of times the charge state of the vehicle-mounted power battery triggers the charge threshold comprises: When the second number of times that the state of charge of the on-vehicle power battery is less than or equal to the lower limit threshold is greater than or equal to a second set threshold, the lower limit threshold is adjusted.

7. The method according to claim 6, characterized in that The adjusting the lower threshold includes: increasing the lower threshold.

8. An output power control device for a vehicle-mounted fuel cell, suitable for a vehicle comprising a vehicle-mounted fuel cell and a vehicle-mounted power battery connected in parallel, characterized in that: The device comprises: A determination module, used to determine the number of times the state of charge of the on-board power battery triggers a charge threshold during vehicle operation; A first adjustment module, configured to adjust a charge threshold of the on-board power battery according to the number of times the charge state of the on-board power battery triggers the charge threshold; The second regulating module is used to regulate the output power of the on-vehicle fuel cell according to the adjusted charge threshold of the on-vehicle power battery.

9. A vehicle, characterized in that: The vehicle comprises: a memory and a processor, the memory stores a computer program, and the processor implements the method described in any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed, the method according to any one of claims 1 to 7 is implemented.

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