Multi-fuel cell system energy control method and system, vehicle

Abstract

The application discloses a kind of multi-fuel cell system energy control method and control system, vehicle, the method comprises: obtaining the requested power of fuel cell system;When the requested power is less than or equal to the longest life output power of fuel cell system, control multiple fuel cell systems alternate output power;When the requested power is greater than the longest life output power of fuel cell system, control multiple fuel cell systems respectively output corresponding power.The multi-fuel cell system energy control method of the application can fine control the energy management of multiple fuel cell systems according to the size relationship between the longest life output power of fuel cell system and the requested power, improve the overall service life of fuel cell system, and improve the economy of fuel cell vehicle.

Description

Technical Field

[0001] This invention relates to the field of fuel cell vehicle technology, and in particular to a multi-fuel cell system energy control method, a computer-readable storage medium, a multi-fuel cell system energy control system, and a vehicle. Background Technology

[0002] The application of hydrogen fuel cell systems in electric vehicles has received widespread attention and importance. The efficiency of the fuel cell system directly affects the economy of the vehicle, while the service life of the fuel cell system has a direct impact on the lifespan of the electric vehicle.

[0003] Currently, most hydrogen fuel cell vehicles use a single fuel cell system, while some vehicles employ a dual fuel cell system to meet power demands. However, when a dual fuel cell system vehicle requests power from the fuel cells, both fuel cell systems need to start, increasing the number of start-ups and operating time, and reducing the lifespan of the fuel cell systems. The lifespan of a dual fuel cell system is equivalent to that of a single fuel cell system, resulting in poorer overall vehicle fuel economy.

[0004] Furthermore, the power demand on the fuel cell system changes constantly during vehicle operation, resulting in frequent power change requests to the fuel cell system. This leads to frequent load changes and reduces the lifespan of the fuel cell system. Summary of the Invention

[0005] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the first objective of this invention is to propose an energy control method for multi-fuel cell systems, which can perform refined control of the energy management of multiple fuel cell systems based on the relationship between the maximum lifetime output power of a single fuel cell system and the requested power, thereby improving the overall lifespan of the fuel cell system and enhancing the economic efficiency of fuel cell vehicles.

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

[0007] The third objective of this invention is to propose an energy control system for a multi-fuel cell system.

[0008] The fourth objective of this invention is to provide a vehicle.

[0009] To achieve the above objectives, a first aspect of the present invention provides an energy control method for a multi-fuel cell system, comprising: acquiring the requested power of the fuel cell system; controlling multiple fuel cell systems to alternately output power when the requested power is less than or equal to the maximum lifetime output power of the fuel cell system; and controlling multiple fuel cell systems to output corresponding power respectively when the requested power is greater than the maximum lifetime output power of the fuel cell system.

[0010] According to the energy control method for a multi-fuel cell system of the present invention, the requested power of the fuel cell system is obtained. When the requested power is less than or equal to the maximum lifetime output power of the fuel cell system, the multiple fuel cell systems are controlled to alternately output power; when the requested power is greater than the maximum lifetime output power of the fuel cell system, the multiple fuel cell systems are controlled to output their respective power. Therefore, this method can perform refined control of the energy management of the multi-fuel cell system based on the relationship between the maximum lifetime output power of the fuel cell system and the requested power, thereby improving the overall lifespan of the fuel cell system and enhancing the economic efficiency of fuel cell vehicles.

[0011] In addition, the energy control method for a multi-fuel cell system according to the above embodiments of the present invention may also have the following additional technical features:

[0012] According to one embodiment of the present invention, a multi-fuel cell system includes a first fuel cell system and a second fuel cell system. Controlling the multiple fuel cell systems to alternately output power includes: acquiring the number of times the first fuel cell system and the second fuel cell system have been operated; when the number of times the first fuel cell system has been operated is less than or equal to the number of times the second fuel cell system has been operated, controlling the first fuel cell system to output requested power; when the number of times the first fuel cell system has been operated is greater than the number of times the second fuel cell system has been operated, controlling the second fuel cell system to output requested power.

[0013] According to one embodiment of the present invention, a multi-fuel cell system includes a first fuel cell system and a second fuel cell system. Controlling the multiple fuel cell systems to output corresponding power respectively includes: obtaining the rated power of the fuel cell system; when the requested power is greater than the sum of the longest lifespan output power and the rated power, controlling the first fuel cell system and the second fuel cell system to output half of the requested power respectively; when the requested power is less than or equal to the sum of the longest lifespan output power and the rated power, determining the output power of the first fuel cell system and the second fuel cell system based on the number of times the first fuel cell system and the second fuel cell system have been operated.

[0014] According to one embodiment of the present invention, determining the output power of the first fuel cell system and the second fuel cell system based on the number of times the first fuel cell system and the second fuel cell system operate includes: when the number of times the first fuel cell system operates is less than or equal to the number of times the second fuel cell system operates, controlling the output power of the first fuel cell system to be the power difference between the requested power and the longest lifespan output power, and controlling the output power of the second fuel cell system to be the longest lifespan output power.

[0015] According to one embodiment of the present invention, determining the output power of the first fuel cell system and the second fuel cell system based on the number of times the first fuel cell system and the second fuel cell system operate includes: when the number of times the first fuel cell system operates is greater than the number of times the second fuel cell system operates, controlling the output power of the first fuel cell system to be the longest lifespan output power, and controlling the output power of the second fuel cell system to be the power difference between the requested power and the longest lifespan output power.

[0016] According to one embodiment of the present invention, multiple fuel cell systems have the same maximum lifetime output power.

[0017] According to one embodiment of the present invention, multiple fuel cell systems have the same rated power, and the rated power is greater than the longest lifetime output power.

[0018] To achieve the above objectives, a second aspect of the present invention provides a computer-readable storage medium storing a multi-fuel cell system energy control program thereon, which, when executed by a processor, implements the above-described multi-fuel cell system energy control method.

[0019] According to the computer-readable storage medium of the present invention, by executing the above-described energy control method for a multi-fuel cell system, the service life of the multi-fuel cell system can be improved and the economy of fuel cell vehicles can be enhanced.

[0020] To achieve the above objectives, a third aspect of the present invention provides an energy control system for a multi-fuel cell system, comprising: an acquisition module for acquiring the requested power of the fuel cell system; a control module for controlling multiple fuel cell systems to alternately output power when the requested power is less than or equal to the maximum lifetime output power of the fuel cell system; and the control module further for controlling multiple fuel cell systems to output corresponding power respectively when the requested power is greater than the maximum lifetime output power of the fuel cell system.

[0021] According to an embodiment of the present invention, the energy control system for a multi-fuel cell system acquires the requested power of the fuel cell system. When the requested power is less than or equal to the maximum lifetime output power of the fuel cell system, the control module controls multiple fuel cell systems to alternately output power; when the requested power is greater than the maximum lifetime output power of the fuel cell system, the control module controls multiple fuel cell systems to output their respective power. Therefore, this system performs refined control of the energy management of the multi-fuel cell system based on the relationship between the maximum lifetime output power of a single fuel cell system and the requested power, thereby improving the lifespan of the multi-fuel cell system and enhancing the economic efficiency of fuel cell vehicles.

[0022] To achieve the above objectives, a fourth aspect of the present invention provides a vehicle comprising at least two fuel cell systems, wherein the at least two fuel cell systems distribute their output power using the multi-fuel cell system energy control method described above.

[0023] According to embodiments of the present invention, by distributing output power through a multi-fuel cell system energy control method, the lifespan of the multi-fuel cell system can be improved, thereby enhancing the economic efficiency of the fuel cell vehicle.

[0024] 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

[0025] Figure 1 A flowchart of an energy control method for a multi-fuel cell system according to an embodiment of the present invention;

[0026] Figure 2 A flowchart of an energy control method for a multi-fuel cell system according to an embodiment of the present invention;

[0027] Figure 3 A flowchart of an energy control method for a multi-fuel cell system according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the energy control system of a multi-fuel cell system according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of a vehicle according to an embodiment of the present invention;

[0030] Figure 6 This is an architectural diagram of a vehicle according to an embodiment of the present invention. Detailed Implementation

[0031] 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.

[0032] The following description, with reference to the accompanying drawings, outlines an energy control method for a multi-fuel cell system, a computer-readable storage medium, an energy control system for a multi-fuel cell system, and a vehicle according to embodiments of the present invention.

[0033] Figure 1 This is a flowchart of an energy control method for a multi-fuel cell system according to an embodiment of the present invention.

[0034] like Figure 1 As shown, the energy control method for a multi-fuel cell system according to an embodiment of the present invention may include the following steps:

[0035] S101, Obtain the requested power from the fuel cell system.

[0036] Here, the requested power refers to the power request issued by the vehicle to its multiple fuel cell systems during operation, denoted as P. In the embodiments of the present invention, the power demand of the vehicle on the fuel cell systems changes continuously during operation, and the multiple fuel cell systems output power according to the vehicle's power demand to drive the vehicle's operation.

[0037] S102, when the requested power is less than or equal to the maximum lifetime output power of the fuel cell system, control multiple fuel cell systems to alternately output power. The maximum lifetime output power of the fuel cell system refers to the output power at which the fuel cell system operates for the longest period. Since the efficiency of the fuel cell system decreases continuously with increasing power, it can be determined by performing endurance tests on the fuel cell system at different power points. The maximum lifetime output power is denoted as P1.

[0038] S103, when the requested power is greater than the maximum lifetime output power of the fuel cell system, controls multiple fuel cell systems to output the corresponding power respectively.

[0039] Specifically, the maximum lifetime output power of multiple fuel cell systems can be the same or different. Taking the case where multiple fuel cell systems have the same maximum lifetime output power as an example, when the requested power is less than the maximum lifetime output power of the fuel cell system, it indicates that the current requested power is relatively low. To save energy and extend the lifespan of the fuel cell system, multiple fuel cell systems can be controlled to alternately provide energy to the vehicle. For example, the fuel cell system with fewer operating cycles can be prioritized to provide energy to the vehicle, thus extending the overall lifespan of the fuel cell system. When the requested power is greater than the maximum lifetime output power of the fuel cell system, it indicates that the current requested power is relatively high. To ensure sufficient energy is provided to the vehicle, multiple fuel cell systems need to be controlled to operate simultaneously. For example, the requested power can be evenly distributed according to the number of fuel cell systems to provide the same output power to the vehicle. Alternatively, the fuel cell with fewer operating cycles can be prioritized to provide its maximum rated power, with the remaining power output by other fuel cell systems. This extends the overall lifespan of the fuel cell system and reduces the impact of frequent load changes.

[0040] To facilitate the explanation of the energy control method for multi-fuel cell systems, the following explanation uses two battery fuel systems as an example.

[0041] According to one embodiment of the present invention, a multi-fuel cell system includes a first fuel cell system and a second fuel cell system. Controlling the multiple fuel cell systems to alternately output power includes: acquiring the number of times the first fuel cell system and the second fuel cell system have been operated; when the number of times the first fuel cell system has been operated is less than or equal to the number of times the second fuel cell system has been operated, controlling the first fuel cell system to output requested power; when the number of times the first fuel cell system has been operated is greater than the number of times the second fuel cell system has been operated, controlling the second fuel cell system to output requested power.

[0042] Specifically, when the requested power P is less than or equal to the maximum lifetime output power P1 of the fuel cell system, one of the multiple fuel cell systems can meet the requested power P to drive the vehicle. The number of operations of the first and second fuel cell systems can be compared, and the system with fewer operations can be controlled to output the requested power P. When the number of operations of the first and second fuel cell systems is the same, the first fuel cell system is prioritized to output the requested power P. Therefore, when the multiple fuel cell systems are operating at low power, by determining the number of operations of the two fuel cell systems and alternately providing energy to the vehicle, the lifespan of the multiple fuel cell systems can be extended.

[0043] According to one embodiment of the present invention, controlling multiple fuel cell systems to output corresponding power may include the following steps:

[0044] S201, Obtain the rated power of the fuel cell system. The rated power of the fuel cell system can be denoted as PE.

[0045] According to one embodiment of the present invention, multiple fuel cell systems have the same rated power, and the rated power is greater than the longest lifetime output power, i.e., PE > P1.

[0046] S202, when the requested power is greater than the sum of the longest lifespan output power and the rated power, control the first fuel cell system and the second fuel cell system to output half of the requested power respectively.

[0047] In other words, when the requested power P > P1 + PE (the sum of the longest lifespan output power and the rated power), the output power of the first fuel cell system and the second fuel cell system is P / 2.

[0048] S203, when the requested power is less than or equal to the sum of the longest lifespan output power and the rated power, the output power of the first fuel cell system and the second fuel cell system is determined based on the number of times the first fuel cell system and the second fuel cell system are operated.

[0049] According to one embodiment of the present invention, determining the output power of the first fuel cell system and the second fuel cell system based on the number of times the first fuel cell system and the second fuel cell system operate includes: when the number of times the first fuel cell system operates is less than or equal to the number of times the second fuel cell system operates, controlling the output power of the first fuel cell system to be the power difference between the requested power and the longest lifespan output power, and controlling the output power of the second fuel cell system to be the longest lifespan output power.

[0050] According to one embodiment of the present invention, determining the output power of the first fuel cell system and the second fuel cell system based on the number of times the first fuel cell system and the second fuel cell system operate includes: when the number of times the first fuel cell system operates is greater than the number of times the second fuel cell system operates, controlling the output power of the first fuel cell system to be the longest lifespan output power, and controlling the output power of the second fuel cell system to be the power difference between the requested power and the longest lifespan output power.

[0051] Specifically, when the requested power P ≤ P1 + PE (the sum of the longest lifespan output power and the rated power), the first fuel cell system and the second fuel cell system need to operate together to drive the vehicle, but their output power differs. First, the number of operations of the first and second fuel cell systems is compared, and the system with more operations is controlled to smoothly and constantly output the longest lifespan output power P1, while the system with fewer operations bears the remaining variable power value (P - P1), thus alternating the handling of frequent load changes. For example, when the number of operations of the first fuel cell system is greater than that of the second fuel cell system, the output power of the first fuel cell system is the longest lifespan output power P1, and the output power of the second fuel cell system is P - P1 (the power difference between the requested power and the longest lifespan output power); when the number of operations of the first fuel cell system is less than or equal to that of the second fuel cell system, the output power of the second fuel cell system is the longest lifespan output power P1, and the output power of the first fuel cell system is P - P1. Therefore, by determining the maximum power of the fuel cell system during its lifespan, and ensuring the stable operation of a single fuel cell system at its maximum power point under high vehicle power demands, while the other fuel cell system bears the load impact, and by switching the system bearing the load impact based on the number of times the single system has been operated, the overall lifespan of the dual fuel cell system can be improved.

[0052] It should be noted that when the rated power and maximum lifetime power of the first and second fuel cell systems differ, the smaller of the maximum lifetime power of the two fuel cell systems can be used to determine whether to start a single system or a dual system. Furthermore, in subsequent decision-making logic, the requested power and the number of times the fuel cell system has been operated can still be used to determine the corresponding output power of each fuel cell system.

[0053] As a concrete example, such as Figure 3 As shown, the energy control method for a multi-fuel cell system consisting of a first fuel cell system and a second fuel cell system may include the following steps:

[0054] S301, Obtain the requested power P of the fuel cell system.

[0055] S302, determine whether the requested power P is greater than the maximum lifetime output power P1. If yes, proceed to step S303; if no, proceed to step S308.

[0056] S303, determine whether the requested power P is greater than P1+PE (the sum of the longest lifespan output power and the rated power). If yes, proceed to step S304; if no, proceed to step S305.

[0057] S304, the output power of both the first fuel cell system and the second fuel cell system is P / 2.

[0058] S305, determine whether the number of operations of the first fuel cell system is less than or equal to the number of operations of the second fuel cell system. If yes, proceed to step S306; if no, proceed to step S307.

[0059] S306, the output power of the first fuel cell system is P-P1, and the output power of the second fuel cell system is P1.

[0060] S307, the output power of the first fuel cell system is P1, and the output power of the second fuel cell system is P-P1.

[0061] S308, determine whether the number of operations of the first fuel cell system is less than or equal to the number of operations of the second fuel cell system. If yes, proceed to step S309; ​​if no, proceed to step S310.

[0062] S309, the output power request P of the first fuel cell system.

[0063] S310, the output power request P of the second fuel cell system.

[0064] In summary, the multi-fuel cell system energy control method of this invention, to meet the higher power demands of the vehicle, is equipped with a dual-fuel cell system application and energy management method, including two fuel cell systems and a power battery connected in parallel, and a refined power management method for each fuel cell system. The method determines the power point with the longest lifespan of each fuel cell system and applies it to the energy management strategy. Under high power demands from the vehicle, it ensures that one system operates stably at its longest lifespan power point, while the other system bears the load fluctuations. The system bearing the load fluctuations is switched according to the operating status of the single system, thereby improving the overall lifespan of the dual fuel cell system. When the vehicle requests low power, the operating status of the two fuel cell systems is assessed, and they alternately provide energy to the vehicle, further extending the overall lifespan of the dual fuel cell system.

[0065] In summary, the energy control method for a multi-fuel cell system according to embodiments of the present invention obtains the requested power of the fuel cell system. When the requested power is less than or equal to the maximum lifetime output power of the fuel cell system, the method controls multiple fuel cell systems to alternately output power; when the requested power is greater than the maximum lifetime output power of the fuel cell system, the method controls multiple fuel cell systems to output their respective power. Therefore, this method, based on the relationship between the maximum lifetime output power of a single fuel cell system and the requested power, enables refined control of the energy management of a multi-fuel cell system, thereby improving the lifespan of the multi-fuel cell system and enhancing the economic efficiency of fuel cell vehicles.

[0066] Corresponding to the above embodiments, the present invention also proposes a computer-readable storage medium.

[0067] The computer-readable storage medium of this invention stores a multi-fuel cell system energy control program thereon, which, when executed by a processor, implements the above-described multi-fuel cell system energy control method.

[0068] According to the computer-readable storage medium of the present invention, by executing the above-described energy control method for a multi-fuel cell system, the overall service life of the fuel cell system can be improved, and the economy of fuel cell vehicles can be enhanced.

[0069] Corresponding to the above embodiments, the present invention also proposes an energy control system for a multi-fuel cell system.

[0070] Figure 4 This is a schematic diagram of the energy control system for a multi-fuel cell system according to an embodiment of the present invention.

[0071] like Figure 4 As shown, the energy control system 400 for a multi-fuel cell system according to an embodiment of the present invention includes: an acquisition module 410 and a control module 420.

[0072] The acquisition module 410 is used to acquire the requested power of the fuel cell system. The control module 420 is used to control multiple fuel cell systems to alternately output power when the requested power is less than or equal to the maximum lifetime output power of the fuel cell system. The control module 420 is also used to control multiple fuel cell systems to output their respective power when the requested power is greater than the maximum lifetime output power of the fuel cell system.

[0073] According to one embodiment of the present invention, the multi-fuel cell system includes a first fuel cell system and a second fuel cell system. The control module 420 controls the multiple fuel cell systems to alternately output power. Specifically, it is used to obtain the number of times the first fuel cell system and the second fuel cell system have been operated; when the number of times the first fuel cell system has been operated is less than or equal to the number of times the second fuel cell system has been operated, the first fuel cell system is controlled to output the requested power; when the number of times the first fuel cell system has been operated is greater than the number of times the second fuel cell system has been operated, the second fuel cell system is controlled to output the requested power.

[0074] According to one embodiment of the present invention, a multi-fuel cell system includes a first fuel cell system and a second fuel cell system. A control module 420 controls the multiple fuel cell systems to output corresponding power respectively. Specifically, it is used to: obtain the rated power of the fuel cell system; when the requested power is greater than the sum of the longest lifespan output power and the rated power, control the first fuel cell system and the second fuel cell system to output half of the requested power respectively; when the requested power is less than or equal to the sum of the longest lifespan output power and the rated power, determine the output power of the first fuel cell system and the second fuel cell system based on the number of times the first fuel cell system and the second fuel cell system have been operated.

[0075] According to one embodiment of the present invention, the control module 420 determines the output power of the first fuel cell system and the second fuel cell system based on the number of times the first fuel cell system and the second fuel cell system operate. Specifically, when the number of times the first fuel cell system operates is less than or equal to the number of times the second fuel cell system operates, the control module 420 controls the output power of the first fuel cell system to be the power difference between the requested power and the maximum lifespan output power, and controls the output power of the second fuel cell system to be the maximum lifespan output power.

[0076] According to one embodiment of the present invention, the control module 420 determines the output power of the first fuel cell system and the second fuel cell system based on the number of times the first fuel cell system and the second fuel cell system operate. Specifically, when the number of times the first fuel cell system operates is greater than the number of times the second fuel cell system operates, the control module 420 controls the output power of the first fuel cell system to be the maximum lifespan output power, and controls the output power of the second fuel cell system to be the power difference between the requested power and the maximum lifespan output power.

[0077] According to one embodiment of the present invention, multiple fuel cell systems have the same maximum lifetime output power.

[0078] According to one embodiment of the present invention, multiple fuel cell systems have the same rated power, and the rated power is greater than the longest lifetime output power.

[0079] It should be noted that for details not disclosed in the energy control system of the multi-fuel cell system in the embodiments of the present invention, please refer to the details disclosed in the energy control method of the multi-fuel cell system in the embodiments of the present invention, which will not be repeated here.

[0080] According to an embodiment of the present invention, the energy control system for a multi-fuel cell system acquires the requested power of the fuel cell system. When the requested power is less than or equal to the maximum lifetime output power of the fuel cell system, the control module controls multiple fuel cell systems to alternately output power; when the requested power is greater than the maximum lifetime output power of the fuel cell system, the control module controls multiple fuel cell systems to output their respective power. Therefore, this system performs refined control of the energy management of the multi-fuel cell system based on the relationship between the maximum lifetime output power of a single fuel cell system and the requested power, thereby improving the lifespan of the multi-fuel cell system and enhancing the economic efficiency of fuel cell vehicles.

[0081] Corresponding to the above embodiments, the present invention also proposes a vehicle 500.

[0082] Figure 5 This is a schematic diagram of a vehicle according to an embodiment of the present invention.

[0083] like Figure 5 As shown, in this embodiment of the invention, the vehicle 500 includes at least two fuel cell systems 510, and the at least two fuel cell systems 510 distribute their output power through the multi-fuel cell system energy control method described above.

[0084] According to one embodiment of the present invention, such as Figure 6 As shown, the vehicle includes two fuel cell systems 510, a power battery, a motor controller, and a motor. The two fuel cell systems 510 and the power battery are connected in parallel and then connected to the motor controller, ensuring that the two fuel cell systems can both charge the battery and provide energy to the motor to drive the vehicle.

[0085] According to embodiments of the present invention, by distributing output power through a multi-fuel cell system energy control method, the lifespan of the multi-fuel cell system can be improved, thereby enhancing the economic efficiency of the fuel cell vehicle.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0090] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0091] 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. An energy control method for a multi-fuel cell system, characterized in that, include: Obtain the requested power from the fuel cell system; When the requested power is less than or equal to the maximum lifetime output power of the fuel cell system, the multiple fuel cell systems are controlled to alternately output power. When the requested power is greater than the maximum lifetime output power of the fuel cell system, the multiple fuel cell systems are controlled to output the corresponding power respectively; The method of controlling multiple fuel cell systems to output corresponding power includes: when the requested power is less than or equal to the sum of the longest lifespan output power and the rated power, controlling the fuel cell system with more runs to output the longest lifespan output power, and the fuel cell system with fewer runs to bear the remaining variable power value, wherein the rated power is greater than the longest lifespan output power.

2. The energy control method for a multi-fuel cell system according to claim 1, characterized in that, A multi-fuel cell system includes a first fuel cell system and a second fuel cell system, and controls the multiple fuel cell systems to alternately output power, including: The number of operations for the first fuel cell system and the second fuel cell system were obtained respectively; When the number of times the first fuel cell system operates is less than or equal to the number of times the second fuel cell system operates, the first fuel cell system is controlled to output the requested power. When the number of times the first fuel cell system operates is greater than the number of times the second fuel cell system operates, the second fuel cell system is controlled to output the requested power.

3. The energy control method for a multi-fuel cell system according to claim 1, characterized in that, The multi-fuel cell system includes a first fuel cell system and a second fuel cell system, and controls the multiple fuel cell systems to output corresponding power, including: Obtain the rated power of the fuel cell system; When the requested power is greater than the sum of the longest lifespan output power and the rated power, the first fuel cell system and the second fuel cell system are controlled to output half of the requested power, respectively. When the requested power is less than or equal to the sum of the longest lifespan output power and the rated power, the output power of the first fuel cell system and the second fuel cell system is determined based on the number of times the first fuel cell system and the second fuel cell system have been operated.

4. The energy control method for a multi-fuel cell system according to claim 3, characterized in that, Determining the output power of the first fuel cell system and the second fuel cell system based on the number of operations of the first fuel cell system and the second fuel cell system includes: When the number of operations of the first fuel cell system is less than or equal to the number of operations of the second fuel cell system, the output power of the first fuel cell system is controlled to be the power difference between the requested power and the maximum lifespan output power, and the output power of the second fuel cell system is controlled to be the maximum lifespan output power.

5. The energy control method for a multi-fuel cell system according to claim 3, characterized in that, Determining the output power of the first fuel cell system and the second fuel cell system based on the number of operations of the first fuel cell system and the second fuel cell system includes: When the number of operations of the first fuel cell system is greater than the number of operations of the second fuel cell system, the output power of the first fuel cell system is controlled to be the maximum lifespan output power, and the output power of the second fuel cell system is controlled to be the power difference between the requested power and the maximum lifespan output power.

6. The energy control method for a multi-fuel cell system according to claim 1, characterized in that, The maximum lifetime output power of multiple fuel cell systems is the same.

7. The energy control method for a multi-fuel cell system according to claim 3, characterized in that, The rated power of multiple of the aforementioned fuel cell systems is the same.

8. A computer-readable storage medium, characterized in that, It stores a multi-fuel cell system energy control program, which, when executed by a processor, implements the multi-fuel cell system energy control method according to any one of claims 1-7.

9. An energy control system for a multi-fuel cell system, characterized in that, include: The acquisition module is used to acquire the requested power of the fuel cell system; The control module is configured to control multiple fuel cell systems to alternately output power when the requested power is less than or equal to the maximum lifetime output power of the fuel cell system. The control module is also configured to control multiple fuel cell systems to output corresponding power when the requested power is greater than the maximum lifetime output power of the fuel cell system. The method of controlling multiple fuel cell systems to output corresponding power includes: when the requested power is less than or equal to the sum of the longest lifespan output power and the rated power, controlling the fuel cell system with more runs to output the longest lifespan output power, and the fuel cell system with fewer runs to bear the remaining variable power value, wherein the rated power is greater than the longest lifespan output power.

10. A vehicle, characterized in that, The vehicle includes at least two fuel cell systems, the at least two fuel cell systems distributing their output power using the multi-fuel cell system energy control method as described in any one of claims 1-7.

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