Vehicle, control method, device and computer readable storage medium of vehicle

Abstract

The application provides a vehicle, a control method and device of the vehicle and a computer readable storage medium, and the control method of the vehicle comprises the following steps: acquiring a demand power of the vehicle; and controlling a plurality of fuel cell systems to work in turn according to the demand power. The control method of the vehicle can improve the service life of the fuel cell system in the vehicle under the condition that the power demand of the vehicle is met.

Description

Technical Field

[0001] This application relates to the field of vehicles, and in particular to a vehicle, a method for controlling a vehicle, an apparatus for controlling a vehicle, and a computer-readable storage medium. Background Technology

[0002] Fuel cell systems are devices that generate electricity through an electrochemical reaction between air and hydrogen. Due to their high efficiency and lack of pollution, they represent one of the important development directions for future new energy vehicle engines. Because current technology is limited, the output power of a single fuel cell system cannot meet the vehicle's power requirements. Therefore, related technologies typically involve installing two or more fuel cell systems in a vehicle to jointly supply power and meet the vehicle's power needs.

[0003] However, load changes and frequent start-ups and shutdowns have a significant impact on the lifespan of fuel cell systems. In related technologies, there are two approaches to controlling fuel cell systems. One is to improve efficiency by keeping a single system in a high-efficiency range, which is achieved by adding or shutting down systems to meet changing demands. However, this approach increases the average number of system starts, leading to a shorter system lifespan. The other approach is to control multiple systems to start and stop simultaneously and output equal power. However, this approach results in a higher frequency of load changes for the fuel cell, which in turn shortens its lifespan. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one object of this invention is to provide a vehicle control method capable of controlling the fuel cell system in a vehicle to improve the lifespan of the fuel cell system while meeting the vehicle's power requirements.

[0005] The second objective of this invention is to provide a vehicle control device.

[0006] A third objective of this invention is to provide a computer-readable storage medium.

[0007] The fourth objective of this invention is to provide a vehicle.

[0008] To achieve the above objectives, a first aspect of the present invention provides a vehicle control method, wherein the vehicle includes multiple fuel cell systems, and the control method includes: acquiring the power demand of the vehicle; and controlling the multiple fuel cell systems to take turns operating according to the power demand.

[0009] According to the vehicle control method of the present invention, the vehicle's required power is acquired in real time during vehicle operation, and multiple fuel cell systems in the vehicle are controlled to take turns working based on the required power. This reduces the load change frequency and start-up number of individual fuel cell systems, thereby improving the service life of the fuel cell systems while meeting the vehicle's required power.

[0010] In some embodiments of the present invention, when the plurality of fuel cell systems include a first fuel cell system and a second fuel cell system, the plurality of fuel cell systems are controlled to work in turn according to the required power, including: when the vehicle starts, if the required power is greater than the minimum stable output power of a single system and less than or equal to a first preset power threshold, the service life of the first fuel cell system and the service life of the second fuel cell system are determined, and the fuel cell system with the longer service life in the first fuel cell system and the second fuel cell system is controlled to work according to the service life of the first fuel cell system and the service life of the second fuel cell system.

[0011] In some embodiments of the present invention, when the vehicle is started, the control method further includes: if the required power is less than or equal to the minimum stable output power of the single system, then prohibiting the start of the first fuel cell system and the second fuel cell system; if the required power is greater than the first preset power threshold, then controlling the first fuel cell system and the second fuel cell system to start simultaneously.

[0012] In some embodiments of the present invention, after the first fuel cell system and the second fuel cell system are started simultaneously, the control method further includes:

[0013] If the required power is greater than the first preset power threshold and less than the rated output power of a single system, then the fuel cell system with the shorter service life in the first fuel cell system and the second fuel cell system is controlled to output at the lowest stable output power of the single system, and the fuel cell system with the longer service life in the first fuel cell system and the second fuel cell system is controlled to perform load adjustment to follow the required power.

[0014] If the required power is greater than or equal to the rated output power of a single system and less than the second preset power threshold, then the fuel cell system with the longer service life in the first fuel cell system and the fuel cell system with the shorter service life in the second fuel cell system is controlled to output at the first preset power threshold, and the fuel cell system with the shorter service life in the first fuel cell system and the fuel cell system with the shorter service life is controlled to supplement the load according to the required power.

[0015] If the required power is greater than or equal to the second preset power threshold and less than the third preset power threshold, then the first fuel cell system and the second fuel cell system are controlled to jointly respond to the required power.

[0016] If the required power is greater than or equal to the third preset power threshold, then both the first fuel cell system and the second fuel cell system are controlled to output at the rated output power of the single system.

[0017] In some embodiments of the present invention, the first preset power threshold is the difference between the rated output power of the single system and the minimum stable output power of the single system, the second preset power threshold is twice the first preset power threshold, and the third preset power threshold is twice the rated output power of the single system.

[0018] In some embodiments of the present invention, when the first fuel cell system and the second fuel cell system are both controlled to output at the rated output power of the single system, the control method further includes: controlling the vehicle to issue a power demand exceeding the limit information and starting a timer; when the timer reaches a first preset time, controlling the first fuel cell system and the second fuel cell system to output at the first preset power threshold.

[0019] In some embodiments of the present invention, during vehicle operation, controlling the plurality of fuel cell systems to take turns operating according to the required power, further includes:

[0020] If the required power decreases from greater than the first preset power threshold to less than the first preset power threshold, then

[0021] When the required power is greater than the fourth preset power threshold, the fuel cell system with the shorter service life in the first fuel cell system and the second fuel cell system is controlled to output at the minimum stable output power of the single system, and the fuel cell system with the longer service life in the first fuel cell system and the second fuel cell system is controlled to supplement the load according to the required power. The fourth preset power threshold is twice the minimum stable output power of the single system.

[0022] When the required power is greater than the minimum stable output power of the single system and less than or equal to the fourth preset power threshold, if it continues for a second preset time, the fuel cell system with a short service life in the first fuel cell system and the second fuel cell system is controlled to shut down; otherwise, the first fuel cell system and the second fuel cell system are controlled to output at the minimum stable output power of the single system.

[0023] When the required power is less than or equal to the minimum stable output power of the single system, if this continues for a second preset time, both the first fuel cell system and the second fuel cell system are controlled to shut down; otherwise, the working fuel cell systems in the first and second fuel cell systems are controlled to output at the minimum stable output power of the single system.

[0024] To achieve the above objectives, a second aspect of the present invention provides a vehicle control device, wherein the vehicle includes multiple fuel cell systems, and the control device includes: an acquisition module for acquiring the power demand of the vehicle; and a control module for controlling the multiple fuel cell systems to take turns operating according to the power demand.

[0025] According to the vehicle control device of the present invention, when the vehicle is running, the required power of the vehicle is acquired in real time, and the multiple fuel cell systems in the vehicle are controlled to take turns to work according to the required power. This reduces the load change frequency and start-up number of a single fuel cell system, so that the fuel cell system can meet the vehicle's required power while also improving the service life of the fuel cell system.

[0026] To achieve the above objectives, a third aspect of the present invention provides a computer-readable storage medium having a vehicle control program stored thereon, which, when executed by a processor, implements the vehicle control method described in any of the above embodiments.

[0027] According to embodiments of the present invention, when a vehicle control program stored thereon is executed by a processor, the vehicle control method described in any of the above embodiments can be implemented by reducing the load variation frequency and start-up times of a single fuel cell system, thereby improving the service life of the fuel cell system while meeting the power requirements of the vehicle.

[0028] To achieve the above objectives, a fourth aspect of the present invention provides a vehicle including multiple fuel cell systems and a vehicle controller, wherein the vehicle controller includes a memory, a processor, and a vehicle control program stored in the memory and executable on the processor, and the processor executes the vehicle control program to implement the vehicle control method described in any of the above embodiments.

[0029] According to an embodiment of the present invention, when the processor executes the vehicle control program, it can reduce the load variation frequency and start-up number of a single fuel cell system by implementing the vehicle control method described in any of the above embodiments, so that the fuel cell system can meet the power demand of the vehicle while also improving the service life of the fuel cell system.

[0030] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] Figure 1 This is a flowchart of a vehicle control method according to an embodiment of the present invention.

[0032] Figure 2 This is a flowchart of a vehicle control method according to a specific embodiment of the present invention.

[0033] Figure 3 This is a structural block diagram of a vehicle control device according to an embodiment of the present invention.

[0034] Figure 4 This is a structural block diagram of a vehicle according to an embodiment of the present invention. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] The following description, with reference to the accompanying drawings, describes a vehicle, a vehicle control method, an apparatus, and a computer-readable storage medium according to embodiments of the present invention.

[0037] Figure 1 This is a flowchart of a vehicle control method according to an embodiment of the present invention.

[0038] like Figure 1 As shown, the vehicle control method includes the following steps:

[0039] Step S10: Obtain the required power of the vehicle.

[0040] Step S20: Control multiple fuel cell systems to take turns replacing each other according to the required power.

[0041] According to the vehicle control method of the present invention, when the vehicle is running, the required power of the vehicle is acquired in real time, and multiple fuel cell systems in the vehicle are controlled to take turns working according to the required power. Through the take-off and replacement of multiple systems, multiple fuel cell systems are kept in a stable state. A single fuel cell system meets the overall power demand of the vehicle by changing the load, and the single fuel cell system that changes the load is taken on by multiple fuel cell systems in turn. Ultimately, the frequency of load change of the fuel cell system and the average number of starts can be reduced, so that the fuel cell system can meet the power demand of the vehicle while also improving the service life of the fuel cell system.

[0042] The vehicle in this embodiment of the invention includes multiple fuel cell systems and a vehicle controller. The vehicle controller can monitor the vehicle's status by monitoring the vehicle's switching signals, analog signals, and frequency signals, thereby obtaining the power required by the vehicle during operation.

[0043] In some embodiments of the present invention, when multiple fuel cell systems include a first fuel cell system and a second fuel cell system, the multiple fuel cell systems are controlled to take turns operating according to the required power. This includes: when the vehicle starts, if the required power is greater than the minimum stable output power of a single system but less than or equal to a first preset power threshold, determining the service life of the first fuel cell system and the service life of the second fuel cell system, and controlling the first fuel cell system and the fuel cell system with the longer service life among the second fuel cell systems to operate based on the service life of the first fuel cell system and the service life of the second fuel cell system. In some embodiments of the present invention, the control method further includes: if the required power is less than or equal to the minimum stable output power of a single system, prohibiting the starting of the first fuel cell system and the second fuel cell system; if the required power is greater than the first preset power threshold, controlling the first fuel cell system and the second fuel cell system to start simultaneously.

[0044] It should be understood that the first preset power threshold is a pre-set power value. Typically, fuel cell startup takes tens of seconds or even longer. If another fuel cell system is started after a single fuel cell system has reached its rated power, it may not be able to meet the vehicle's power requirements in time. Therefore, it is necessary to start the other fuel cell system before the single system reaches its rated power to allow for a buffer time for subsequent adjustments. Thus, the system startup power value needs to be set lower than the rated power of a single system. If the system startup power value is too low, it will also lead to frequent startups or frequency changes of the fuel cell system, thereby weakening the extent to which the present invention extends the service life of the fuel cell system. Therefore, in some embodiments of the present invention, when the vehicle includes two fuel cell systems, the first preset power threshold can be set between the minimum stable output power of the single system and the rated output power of the single system. Preferably, the first preset power threshold of the present invention is set to the rated output power of the single system minus the minimum stable output power of the single system.

[0045] Specifically, if the multiple fuel cell systems are two fuel cell systems, namely a first fuel cell system and a second fuel cell system, when the vehicle starts, if the required power is greater than the minimum stable output power of a single system but less than or equal to a first preset power threshold, then the two fuel cell systems are detected to determine the service life of the first fuel cell system and the service life of the second fuel cell system, and the fuel cell system with the longer service life is controlled to work; if the required power is less than or equal to the minimum stable output power of a single system, then the start of the two fuel cell systems is prohibited; if the required power is greater than the first preset power threshold, then the two fuel cell systems are controlled to start simultaneously.

[0046] It should be understood that the multiple fuel cell systems in the vehicle of the present invention are not limited to two. When the number of multiple fuel cell systems exceeds two, the alternating operation of the multiple fuel cell systems refers to the alternating operation of two fuel cell systems.

[0047] In some embodiments of the present invention, after the first fuel cell system and the second fuel cell system are started simultaneously, the control method further includes:

[0048] If the demanded power is greater than the first preset power threshold but less than the rated output power of a single system, the fuel cell system with the shorter service life in the first and second fuel cell systems is controlled to output at the minimum stable output power of the single system, and the fuel cell system with the longer service life in the first and second fuel cell systems is controlled to supplement the load according to the demanded power; if the demanded power is greater than or equal to the rated output power of a single system but less than the second preset power threshold, the fuel cell system with the longer service life in the first and second fuel cell systems is controlled to output at the first preset power threshold, and the fuel cell system with the shorter service life in the first and second fuel cell systems is controlled to supplement the load according to the demanded power; if the demanded power is greater than or equal to the second preset power threshold but less than the third preset power threshold, the first and second fuel cell systems are controlled to jointly respond to the demanded power; if the demanded power is greater than or equal to the third preset power threshold, the first and second fuel cell systems are controlled to output at the rated output power of a single system.

[0049] The first preset power threshold is the difference between the rated output power of a single system and the minimum stable output power of a single system; the second preset power threshold is twice the first preset power threshold; and the third preset power threshold is twice the rated output power of the single system.

[0050] Specifically, when the vehicle starts, the first fuel cell system and the second fuel cell system are started simultaneously according to the vehicle's power demand control, and the vehicle continues to run. During the vehicle's operation, the power demand will also change due to different power requirements.

[0051] If the demand power varies within a range greater than the first preset power threshold but less than the rated output power of a single system, the fuel cell system with the shorter lifespan in the first and second fuel cell systems is controlled to output at the minimum stable output power of the single system. Meanwhile, the fuel cell systems with longer lifespans in both systems are controlled to adjust their load according to the demand power. During this stage, if the demand power is continuously increasing, the output power of the fuel cell system with longer lifespans increases with the increase in demand power until the demand power reaches the rated output power of the single system. At this point, the output power of the fuel cell system with longer lifespans increases to the first preset power threshold. If the vehicle's demand power continues to rise, since the fuel cell system with longer lifespans has already reached the first preset power threshold of this embodiment, its output power no longer needs to increase. Therefore, when the demand power reaches a value greater than or equal to the rated output power of the single system and less than or equal to the second preset power threshold, the fuel cell system with longer lifespans is controlled to output at the first preset power threshold, and the fuel cell system with shorter lifespans is controlled to adjust its load according to the demand power.

[0052] When the demand power continues to rise to the second preset power threshold, since the second preset power threshold is equal to twice the first preset power threshold, and during this process the output power of the fuel cell system with a longer lifespan remains stable at the first preset power threshold, while the output power of the fuel cell system with a shorter lifespan increases to the first preset power threshold, and the output power of both fuel cell systems reaches the first preset power threshold of this embodiment, if the demand power continues to rise to a range greater than the second preset power threshold but less than the third preset power threshold, the first fuel cell system and the second fuel cell system are controlled to maintain the same power output to jointly respond to the change in demand power, wherein the third preset power threshold is equal to twice the rated output power of a single system.

[0053] If the required power exceeds the third preset power threshold, it indicates that the vehicle's power is too high. If the output power of the fuel cell system exceeds the rated output power of a single system, it is easy to cause the fuel cell system to malfunction or greatly reduce the service life of the fuel cell. Therefore, in this case, the first fuel cell system and the second fuel cell system will be controlled to output at the rated output power of a single system.

[0054] In some embodiments of the present invention, when the first fuel cell system and the second fuel cell system are both controlled to output at the rated output power of a single system, the control method further includes: controlling the vehicle to issue a demand power over-limit information and start timing; when the timing time reaches a first preset time, controlling the first fuel cell system and the second fuel cell system to output at a first preset power threshold.

[0055] Specifically, if the power demand exceeds the third preset power threshold, it indicates that the vehicle's power demand is too high, and the vehicle's state needs to be adjusted to reduce the occurrence of accidents and protect the fuel cell system. Therefore, starting from the moment the power demand exceeds the third preset power threshold, while controlling the first fuel cell system and the second fuel cell system to output at the rated output power of a single system, the vehicle issues a power demand over-limit information and starts timing. When the timing reaches the first preset time, the first fuel cell system and the second fuel cell system are controlled to output at the first preset power threshold. That is, when the duration of the power demand exceeding the third preset power threshold reaches the first preset time, the two fuel cell systems are forcibly controlled to reduce their output power. The first preset time can be preset, preferably set to 30 minutes.

[0056] It should be understood that the above description refers to the process of controlling the first fuel cell system and the second fuel cell system to work alternately when the power demand is greater than the first preset power threshold during vehicle operation, taking the state of continuously increasing power demand as an example. Correspondingly, the power demand may also decrease during vehicle operation. When the power demand decreases within the range greater than the first preset power threshold, the process of controlling the first fuel cell system and the second fuel cell system to work alternately is the same as the control process for different power ranges described above.

[0057] In some embodiments of the present invention, after the first fuel cell system and the second fuel cell system are started simultaneously, multiple fuel cell systems are controlled to take turns operating according to the power demand. This further includes: if the power demand decreases from greater than a first preset power threshold to less than the first preset power threshold, then when the power demand is greater than a fourth preset power threshold, the fuel cell system with a shorter service life in the first and second fuel cell systems is controlled to output at the minimum stable output power of a single system, and the fuel cell system with a longer service life in the first and second fuel cell systems is controlled to supplement the power demand by varying the load. The fourth preset power threshold is twice the minimum stable output power of a single system. If the power demand is greater than the minimum stable output power of a single system but less than or equal to the fourth preset power threshold, and this continues for a second preset time, the fuel cell system with a shorter service life in the first and second fuel cell systems is controlled to shut down; otherwise, both the first and second fuel cell systems are controlled to output at the minimum stable output power of a single system. If the power demand is less than or equal to the minimum stable output power of a single system, and this continues for a second preset time, both the first and second fuel cell systems are controlled to shut down; otherwise, the operating fuel cell system in the first and second fuel cell systems is controlled to output at the minimum stable output power of a single system.

[0058] When the vehicle starts, because the power demand exceeds the first preset power threshold, the first and second fuel cell systems start simultaneously. The power demand will continuously change according to the actual operating conditions of the vehicle. When the power demand decreases to less than or equal to the first preset power threshold, and when the power demand exceeds the fourth preset power threshold, the fuel cell system with the shorter lifespan in both systems will output at its minimum stable output power. Meanwhile, the fuel cell system with the longer lifespan in both systems will adjust its load to compensate for the power demand. The fourth preset power threshold is twice the minimum stable output power of a single system. This process is the same as the control process when the power demand varies within the range of being greater than the first preset power threshold but less than the rated output power of a single system. This maintains a stable output from the fuel cell system with the shorter lifespan and controls the fuel cell system with the longer lifespan to adjust its load to compensate for the power demand, ensuring that the lifespan of the fuel cell system with the shorter lifespan is not reduced due to frequent load adjustments.

[0059] When the required power is greater than the minimum stable output power of a single system but less than or equal to the fourth preset power threshold, the vehicle's power demand is relatively low. If this required power is maintained for a second preset time, only one fuel cell system can be controlled to maintain operation. To improve the average lifespan of the vehicle's fuel cell systems, the fuel cell system with the shorter lifespan in the first and second fuel cell systems needs to be shut down, and the fuel cell system with the longer lifespan should maintain power output to meet the current power demand. If the time during which the required power is greater than the minimum stable output power of a single system but less than or equal to the fourth preset power threshold does not exceed the second preset time, then both the first and second fuel cell systems should be controlled as single systems. The system outputs power at its minimum stable output power. If the duration of the power demand being less than or equal to the minimum stable output power of a single system exceeds a second preset time, it indicates that the vehicle is in an abnormal state and the power demand is too low. In this case, both the first and second fuel cell systems should be shut down to ensure vehicle safety and reduce the occurrence of abnormal situations in the fuel cell systems. Otherwise, if the duration of the power demand being less than or equal to the minimum stable output power of a single system does not exceed the second preset time, it indicates that the vehicle has encountered a brief unexpected situation. In this case, the operating fuel cell systems in both the first and second fuel cell systems should be controlled to output power at the minimum stable output power of a single system to maintain the vehicle's power demand. The second preset time can be preset, preferably set to 1 minute.

[0060] The above is the entire process of the vehicle control method according to an embodiment of the present invention. The following is in conjunction with... Figure 2 The control process of a vehicle is described using two fuel cell systems as examples.

[0061] like Figure 2 As shown, P represents the required power, P min P1 represents the minimum stable output power of a single system, and P represents the first preset power threshold. e This indicates the rated output power of a single system; 2P1 indicates the second preset power threshold; 2P e This indicates the third preset power threshold, 2P min This represents the fourth preset power threshold. System A represents a fuel cell system with a long service life, and System B represents a fuel cell system with a short service life. When the vehicle starts, the required power of the vehicle is first acquired. Based on the magnitude of the required power, the startup of the fuel cell system is determined. If the required power P is greater than P1, both fuel cells are started and operated; if the required power P is less than or equal to P1 and greater than P1, then... min If only system A is activated for single-system output, then only system A is activated; if the required power is less than or equal to P min If so, then neither of the two fuel cell systems will start.

[0062] In this scenario, when the vehicle starts and the required power P is greater than P1, and both fuel cells are activated, the system also includes a process of controlling system A and system B to work alternately based on the continuous changes in required power. In one example, it is assumed that the required power P at vehicle startup is greater than or equal to a second preset power threshold 2P1 and less than a third preset power threshold 2P. e At this point, system A and system B are outputting the same power, jointly responding to the demand power P. If, after this, the demand power P continues to decrease, until the demand power P decreases to a level greater than or equal to the rated output power P of a single system... e When the power demand P is less than the second preset power threshold 2P1, control system A outputs a stable power at the first preset power threshold P1, and system B performs load adjustment; when the demand power P decreases to a range greater than the first preset power threshold P1 but less than the rated output power P of a single system... e and greater than the fourth preset power threshold 2P min When the power output is less than or equal to the first preset power threshold P1, the control system B outputs the lowest stable power P of the single system. min With stable output, system A performs load adjustment; when the required power P decreases to a level greater than the minimum stable output power P of the single system. min Less than or equal to the fourth preset power threshold 2P min If the duration of the power demand within this range exceeds the second preset time of 1 minute, control system B will shut down, and system A will maintain the power output. If the duration does not exceed the second preset time of 1 minute, both control system A and system B will output the minimum stable power P of a single system. min Output is performed when the required power P is less than or equal to the minimum stable output power P of the single system. minIf the operation continues for one minute within the second preset time, both systems will be shut down; otherwise, the operating fuel cell system will be controlled to output the lowest stable power P of a single system. min Output is then performed. If the power demand continuously increases, the increase process is referenced... Figure 2 As shown, it will not be elaborated further here.

[0063] To achieve the above embodiments, this invention also proposes a vehicle control device. Figure 3 This is a structural block diagram of a vehicle control device according to an embodiment of the present invention. Figure 3 As shown, the device includes an acquisition module 301 for acquiring the required power of the vehicle; and a control module 302 for controlling multiple fuel cell systems to take turns operating according to the required power.

[0064] According to the vehicle control device 302 of the present invention, when the vehicle is running, the vehicle's required power is acquired in real time, and multiple fuel cell systems in the vehicle are controlled to take turns working according to the required power. This reduces the load change frequency and start-up number of a single fuel cell system, so that the fuel cell system can meet the vehicle's required power while also improving the service life of the fuel cell system.

[0065] To implement the above embodiments, the present invention also proposes a computer-readable storage medium storing a vehicle control program thereon, which, when executed by a processor, implements the vehicle control method of any of the above embodiments.

[0066] According to embodiments of the present invention, when a vehicle control program stored thereon is executed by a processor, the vehicle control method described in any of the above embodiments can be implemented by reducing the load variation frequency and start-up times of a single fuel cell system, thereby improving the service life of the fuel cell system while meeting the power requirements of the vehicle.

[0067] For example, when the vehicle control program is executed by the processor, the following steps are taken to implement the vehicle control method:

[0068] Step S10: Obtain the required power of the vehicle.

[0069] Step S20: Control multiple fuel cell systems to take turns replacing each other according to the required power.

[0070] It should be noted that the above explanation of the embodiments and beneficial effects of the vehicle control method is also applicable to the computer-readable storage medium of the embodiments of the present invention. To avoid redundancy, it will not be elaborated in detail here.

[0071] To achieve the above embodiments, this invention also proposes a vehicle. Figure 4 This is a structural block diagram of a vehicle according to an embodiment of the present invention. Figure 4 As shown, the vehicle 400 includes a memory 402, a processor 404, and a vehicle control program 406 stored in the memory 402 and executable on the processor 404. When the processor 404 executes the vehicle control program 406, it implements the vehicle control method of any of the above embodiments.

[0072] According to the vehicle 400 of the present invention, when the processor executes the vehicle control program, by implementing the vehicle control method described in any of the above embodiments, it can reduce the load variation frequency and start-up times of a single fuel cell system, thereby improving the service life of the fuel cell system while meeting the power requirements of the vehicle.

[0073] For example, when the vehicle control program 406 is executed by the processor 404, the following steps of the vehicle control method are implemented:

[0074] Step S10: Obtain the required power of the vehicle.

[0075] Step S20: Control multiple fuel cell systems to take turns replacing each other according to the required power.

[0076] It should be noted that the above-described embodiments of the vehicle control method and the explanation of its beneficial effects also apply to the vehicle 400 in the embodiments of the present invention. To avoid redundancy, they will not be elaborated in detail here.

[0077] Furthermore, other components and functions of the vehicle in the embodiments of the present invention are known to those skilled in the art, and will not be described in detail here to reduce redundancy.

[0078] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0079] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0080] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0081] In the description of this invention, 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," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0082] Furthermore, the terms "first," "second," etc., used in the embodiments of this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of technical features indicated in this embodiment. Therefore, features defined with terms such as "first" and "second" in the embodiments of this invention can explicitly or implicitly indicate that the embodiment includes at least one of those features. In the description of this invention, the word "multiple" means at least two or more, such as two, three, four, etc., unless otherwise explicitly specified in the embodiments.

[0083] In this invention, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing" appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components, or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific implementation.

[0084] In this invention, unless otherwise explicitly 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," "over," and "on top" of 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.

[0085] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for controlling a vehicle, characterized in that, The vehicle includes multiple fuel cell systems, and the control method includes: Obtain the required power of the vehicle; The multiple fuel cell systems are controlled to rotate and operate in turn according to the required power. When the plurality of fuel cell systems includes a first fuel cell system and a second fuel cell system, the plurality of fuel cell systems are controlled to take turns operating according to the required power, including: When the vehicle starts, if the required power is greater than the minimum stable output power of a single system and less than or equal to a first preset power threshold, the service life of the first fuel cell system and the service life of the second fuel cell system are determined, and the fuel cell system with the longer service life in the first fuel cell system and the second fuel cell system is controlled to work based on the service life of the first fuel cell system and the service life of the second fuel cell system; the first preset power threshold is set between the minimum stable output power of a single system and the rated output power of a single system. When the vehicle starts, if the required power is greater than a first preset power threshold, then control both fuel cell systems to start simultaneously, including: If the required power is greater than the first preset power threshold and less than the rated output power of a single system, then the fuel cell system with the shorter service life in the first fuel cell system and the second fuel cell system is controlled to output at the lowest stable output power of the single system, and the fuel cell system with the longer service life in the first fuel cell system and the second fuel cell system is controlled to perform load adjustment to follow the required power. If the required power is greater than or equal to the rated output power of a single system and less than the second preset power threshold, then the fuel cell system with the longer service life in the first fuel cell system and the fuel cell system with the shorter service life in the second fuel cell system is controlled to output at the first preset power threshold, and the fuel cell system with the shorter service life in the first fuel cell system and the fuel cell system with the shorter service life is controlled to supplement the load according to the required power. If the required power is greater than or equal to the second preset power threshold and less than the third preset power threshold, then the first fuel cell system and the second fuel cell system are controlled to output the same power to jointly respond to the required power. If the required power is greater than or equal to the third preset power threshold, then both the first fuel cell system and the second fuel cell system are controlled to output at the rated output power of the single system. When both the first fuel cell system and the second fuel cell system are operating at their rated output power, the vehicle is controlled to issue a power demand exceeding limit information and start timing. When the timing reaches the first preset time, both the first fuel cell system and the second fuel cell system are controlled to output at the first preset power threshold.

2. The control method according to claim 1, characterized in that, When the vehicle is started, the control method further includes: If the required power is less than or equal to the minimum stable output power of the single system, then the first fuel cell system and the second fuel cell system are prohibited from starting.

3. The control method according to claim 1, characterized in that, The first preset power threshold is the difference between the rated output power of the single system and the minimum stable output power of the single system; the second preset power threshold is twice the first preset power threshold; and the third preset power threshold is twice the rated output power of the single system.

4. The control method according to claim 1, characterized in that, During vehicle operation, controlling the multiple fuel cell systems to take turns operating according to the required power also includes: If the required power decreases from greater than the first preset power threshold to less than the first preset power threshold, then When the required power is greater than the fourth preset power threshold, the fuel cell system with the shorter service life in the first fuel cell system and the second fuel cell system is controlled to output at the minimum stable output power of the single system, and the fuel cell system with the longer service life in the first fuel cell system and the second fuel cell system is controlled to supplement the load according to the required power. The fourth preset power threshold is twice the minimum stable output power of the single system. When the required power is greater than the minimum stable output power of the single system and less than or equal to the fourth preset power threshold, if it continues for a second preset time, the fuel cell system with a short service life in the first fuel cell system and the second fuel cell system is controlled to shut down; otherwise, the first fuel cell system and the second fuel cell system are controlled to output at the minimum stable output power of the single system. When the required power is less than or equal to the minimum stable output power of the single system, if this continues for a second preset time, both the first fuel cell system and the second fuel cell system are controlled to shut down; otherwise, the working fuel cell systems in the first and second fuel cell systems are controlled to output at the minimum stable output power of the single system.

5. A vehicle control device, characterized in that, The vehicle is used to implement the vehicle control method according to any one of claims 1-4, the vehicle includes multiple fuel cell systems, and the control device includes: The acquisition module is used to acquire the required power of the vehicle; The control module is used to control the multiple fuel cell systems to take turns operating according to the required power.

6. A computer-readable storage medium, characterized in that, It stores a vehicle control program, which, when executed by a processor, implements the vehicle control method according to any one of claims 1-4.

7. A vehicle, characterized in that, The system includes multiple fuel cell systems and a vehicle controller, wherein the vehicle controller includes a memory, a processor, and a vehicle control program stored in the memory and executable on the processor. When the processor executes the vehicle control program, it implements the vehicle control method according to any one of claims 1-4.

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