Multi-power source control method and device for vehicle, vehicle, medium and program

Abstract

The application relates to the technical field of vehicles, in particular to a multi-power-source control method and device of a vehicle, a vehicle, a medium and a program, wherein the method comprises the following steps: acquiring a current demand power of the vehicle and a current state of charge of a power battery; determining a discharging power of the power battery according to the current state of charge of the power battery; and cooperatively controlling at least one output power of a fuel cell, a hydrogen internal combustion engine and the power battery of the vehicle according to the discharging power and the demand power. Therefore, the problems that a single-power-source vehicle is difficult to operate at high efficiency and the overall cost of a high-power-level vehicle is relatively high in the related art are solved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method, device, vehicle, medium and program for controlling multiple power sources of a vehicle. Background Technology

[0002] As countries around the world gradually announce their bans on the sale of gasoline-powered vehicles, new energy vehicles are gradually fading from the scene. Hydrogen fuel cell vehicles, with their advantages of zero emissions, rapid refueling, and long driving range, are gaining increasing attention from various countries and becoming one of the important development directions in the future new energy vehicle sector. Hydrogen, as a secondary energy source, has advantages such as diverse sources, zero emissions at the end of the process, wide applications, and high energy density, making it a crucial component of future power infrastructure.

[0003] Among related technologies, proton exchange membrane fuel cells are easily affected by their reaction characteristics. They are characterized by high efficiency and zero pollution, but they are also expensive. The carbon-based materials of the anode and cathode may be oxidized under certain conditions, leading to damage to the electrode structure. They also have high requirements for humidity and temperature. When fuel cells operate at high power and high current, their efficiency drops sharply, possibly lower than that of hydrogen internal combustion engines. Furthermore, fuel cell engines are expensive, and power batteries can cause range anxiety. Therefore, vehicles with a single power source are difficult to operate efficiently, and the overall cost of higher power levels is high. Summary of the Invention

[0004] This application provides a multi-power source control method, device, vehicle, medium, and program for vehicles to solve problems such as the difficulty in operating vehicles with a single power source and the high overall cost of higher power levels in related technologies.

[0005] The first aspect of this application provides a multi-power source control method for a vehicle, comprising the following steps: acquiring the current power demand of the vehicle and the current state of charge of the power battery; determining the discharge power of the power battery based on the current state of charge of the power battery; and coordinating the output power of at least one of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery based on the discharge power and the power demand.

[0006] Optionally, the step of coordinating the output power of at least one of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery based on the discharge power and the demand power includes: if the discharge power of the power battery is greater than the current demand power, then controlling the power battery to output power; if the discharge power of the power battery is less than or equal to the current demand power and the current demand power is less than a first preset threshold, then coordinating the output power of the vehicle's fuel cell and the power battery; if the current demand power is greater than or equal to the first preset threshold, then coordinating the output power of the vehicle's hydrogen internal combustion engine, the fuel cell, and the power battery.

[0007] Optionally, the coordinated control of the vehicle's fuel cell and power battery output includes: identifying the current state of charge of the power battery; and controlling the output of the vehicle's fuel cell and power battery based on the current state of charge of the power battery, the discharge power of the power battery, and the current power demand.

[0008] Optionally, controlling the output power of the vehicle's fuel cell and the power battery based on the current state of charge (SBC) of the power battery, the discharge power of the power battery, and the current power demand includes: if the current SBC of the power battery is less than a second preset threshold, determining the output power of the fuel cell based on the discharge power of the power battery and the current power demand, and controlling the fuel cell to output the current power demand; if the current SBC of the power battery is greater than or equal to the second preset threshold and less than a third preset threshold, controlling the fuel cell to independently output the current power demand; if the current SBC of the power battery is greater than or equal to the third preset threshold, calculating the output power of the fuel cell based on the discharge power of the power battery and the current power demand, and coordinating the vehicle's fuel cell and the power battery to jointly output the current power demand, wherein the third preset threshold is greater than the second preset threshold.

[0009] Optionally, the coordinated control of the vehicle's hydrogen internal combustion engine, fuel cell, and power battery output power includes: controlling the fuel engine output power to a fourth preset threshold; and coordinating the output power of the vehicle's hydrogen internal combustion engine, fuel cell, and power battery according to the current state of charge of the power battery, the discharge power of the power battery, the output power of the fuel engine, and the current power demand.

[0010] Optionally, the step of coordinating the control of the vehicle's hydrogen internal combustion engine, fuel cell, and power battery to output the current required power based on the current state of charge of the power battery, the discharge power of the power battery, the output power of the fuel engine, and the current required power includes: if the current state of charge of the power battery is less than a second preset threshold, then determining the output power of the hydrogen internal combustion engine based on the discharge power of the power battery, the output power of the fuel engine, and the current required power, and controlling the fuel cell and hydrogen internal combustion engine to output the current required power; if the current state of charge of the power battery is greater than or equal to the second preset threshold and less than a third preset threshold, then determining the output power of the hydrogen internal combustion engine based on the output power of the fuel engine and the current required power, and coordinating the control of the vehicle's hydrogen internal combustion engine and fuel cell to output the current required power; if the current state of charge of the power battery is greater than or equal to the third preset threshold, then calculating the output power of the hydrogen internal combustion engine based on the discharge power of the power battery, the output power of the fuel engine, and the current required power, and coordinating the control of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery to output the current required power.

[0011] A second aspect of this application provides a multi-power source control device for a vehicle, comprising: an acquisition module for acquiring the vehicle's current power demand and the current state of charge of a power battery; a determination module for determining the discharge power of the power battery based on the current state of charge of the power battery; and a control module for coordinating the output power of at least one of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery based on the discharge power and the power demand.

[0012] A third aspect of this application provides a vehicle, including: a power battery, a fuel cell, and a hydrogen internal combustion engine, wherein the hydrogen internal combustion engine outputs power based on the exhaust gas and wastewater from the fuel cell; and a vehicle controller, which coordinates the output power of at least one of the fuel cell, the hydrogen internal combustion engine, and the power battery of the vehicle based on the multi-power source control method of the vehicle according to any one of claims 1-6.

[0013] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon that is executed by a processor to perform the multi-power source control method for a vehicle as described in the above embodiments.

[0014] A fifth aspect of this application provides a computer program product, including a computer program or instructions, characterized in that, when the computer program or instructions are executed, they implement the multi-power source control method for a vehicle as described in the above embodiments.

[0015] Therefore, this application has at least the following beneficial effects:

[0016] This application embodiment includes three major power sources: fuel cell, hydrogen internal combustion engine, and power battery. The wastewater generated by the fuel cell can be converted into steam to ensure the humidity of the hydrogen internal combustion engine, and can also be reduced to hydrogen and oxygen to supply the hydrogen internal combustion engine for combustion. This ensures zero pollution and zero emissions while improving the utilization rate of hydrogen. Based on the current state of charge of the power battery and the current power demand of the vehicle, at least one output power of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery can be controlled in a coordinated manner. This can comprehensively improve the working efficiency of the system and reduce the overall cost of the system, making it highly applicable.

[0017] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 This is a flowchart of a multi-power source control method for a vehicle according to an embodiment of this application;

[0020] Figure 2 This is a flowchart illustrating the energy management strategy for multi-power source scenarios provided in the embodiments of this application;

[0021] Figure 3 This is a block diagram of a multi-power source control device for a vehicle provided according to an embodiment of this application;

[0022] Figure 4 This is a structural schematic diagram of a vehicle provided according to an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: Acquisition module 110, Determination module 120, Control module 130, Power battery 210, Fuel cell 220, Hydrogen internal combustion engine 230, and Vehicle controller 240. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of these embodiments are shown 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 this application, and should not be construed as limiting this application.

[0025] The following description, with reference to the accompanying drawings, outlines a multi-power source control method, apparatus, vehicle, storage medium, and program product for vehicles according to embodiments of this application. Addressing the issues mentioned in the background section regarding the inefficiency of single-power-source vehicles and the high overall cost of higher power levels in related technologies, this application provides a multi-power-source control method for vehicles. In this method, wastewater generated by the fuel cell can be converted into steam to maintain the humidity of the hydrogen internal combustion engine, and can be reduced back into hydrogen and oxygen to supply the hydrogen internal combustion engine for combustion. This ensures zero pollution and emissions while improving hydrogen utilization. Furthermore, based on the current state of charge of the power battery and the vehicle's current power demand, at least one output power from the vehicle's fuel cell, hydrogen internal combustion engine, and power battery is coordinated and controlled. This comprehensively improves system efficiency and reduces overall system cost, demonstrating high applicability. Thus, it solves the problems of inefficiency of single-power-source vehicles and the high overall cost of higher power levels in related technologies.

[0026] Specifically, Figure 1 This is a flowchart illustrating a multi-power source control method for a vehicle provided in an embodiment of this application.

[0027] like Figure 1 As shown, the multi-power source control method for this vehicle includes the following steps:

[0028] In step S101, the current power demand of the vehicle and the current state of charge of the power battery are obtained.

[0029] It is understood that the embodiments of this application can obtain the current power demand of the vehicle and the current state of charge of the power battery, so as to facilitate the subsequent coordinated control of at least one output power of the vehicle's fuel cell, hydrogen internal combustion engine and power battery.

[0030] It should be noted that the vehicle's current power demand is determined based on the vehicle's actual operating state at a given moment and the driver's operational intentions. The power demand reflects the power output required by the vehicle under specific operating conditions to meet different driving needs such as acceleration, maintaining speed, and hill climbing. This application can collect real-time data through various sensors (such as accelerator pedal position sensors, vehicle speed sensors, acceleration sensors, and slope sensors).

[0031] For example, driver needs can be determined by detecting the position of the accelerator pedal based on driver operation. The door pedal position sensor can provide a signal indicating the degree to which the driver wants the vehicle to accelerate. The position of the brake pedal can also be used to determine whether the vehicle needs to decelerate or stop, thereby adjusting the required power.

[0032] In step S102, the discharge power of the power battery is determined based on the current state of charge of the power battery.

[0033] It is understood that the embodiments of this application can determine the discharge power of the power battery based on the current state of charge of the power battery, so as to facilitate the subsequent coordinated control of at least one output power of the vehicle's fuel cell, hydrogen internal combustion engine and power battery.

[0034] In step S103, at least one of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery output power is controlled in a coordinated manner based on the discharge power and the demand power.

[0035] It is understood that the embodiments of this application can coordinate the output power of at least one of the vehicle's fuel cell, hydrogen internal combustion engine and power battery according to the discharge power and the power demand, thereby comprehensively improving the system's working efficiency and reducing the overall cost of the system, and thus having high applicability.

[0036] In this embodiment of the application, coordinating the output power of at least one of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery based on the discharge power and the demand power includes: if the discharge power of the power battery is greater than the current demand power, then controlling the power battery to output power; if the discharge power of the power battery is less than or equal to the current demand power and the current demand power is less than a first preset threshold, then coordinating the output power of the vehicle's fuel cell and power battery; if the current demand power is greater than or equal to the first preset threshold, then coordinating the output power of the vehicle's hydrogen internal combustion engine, fuel cell, and power battery.

[0037] The first preset threshold can be set according to actual needs without specific limitations.

[0038] It is understood that the embodiments of this application can determine the corresponding output strategy based on the discharge power of the power battery, the current power demand, and the magnitude of the first preset threshold, so as to comprehensively improve the working efficiency of the system and reduce the overall cost of the system.

[0039] Specifically, such as Figure 2 As shown, assuming the current power demand is P1 and the discharge power of the power battery is P2, if P1 < P2, the fuel cell engine remains idle or off, the hydrogen internal combustion engine remains idle or off, and the power demand of the vehicle is provided by the power battery. In the idling state, the hydrogen internal combustion engine or fuel cell maintains a minimum operation, usually to keep the system in a state where it can respond quickly at any time, but at this time the power they provide is very low and hardly contributes to the power of the vehicle.

[0040] If P2≤P1<M, start the fuel cell engine, keep the hydrogen internal combustion engine at idle / off, and determine the output power of the fuel cell engine based on the discharge power of the power battery.

[0041] If P1≥M, start the fuel cell engine, control the fuel cell engine output power P3=N, start the hydrogen internal combustion engine, and determine the output power of the hydrogen internal combustion engine based on the discharge power of the power battery and the output power of the fuel cell engine.

[0042] In this embodiment of the application, the coordinated control of the vehicle's fuel cell and power battery output includes: identifying the current state of charge of the power battery; and controlling the output of the vehicle's fuel cell and power battery based on the current state of charge of the power battery, the discharge power of the power battery, and the current power demand.

[0043] It is understood that the embodiments of this application can control the output power of the vehicle's fuel cell and power battery based on the current state of charge of the power battery, the discharge power of the power battery, and the current power demand, so as to comprehensively improve the working efficiency of the system and reduce the overall cost of the system.

[0044] In this embodiment, controlling the output power of the vehicle's fuel cell and power battery based on the current state of charge (SBC) of the power battery, the discharge power of the power battery, and the current power demand includes: if the current SBC of the power battery is less than a second preset threshold, determining the output power of the fuel cell based on the discharge power of the power battery and the current power demand, and controlling the fuel cell to output the current power demand; if the current SBC of the power battery is greater than or equal to the second preset threshold and less than a third preset threshold, controlling the fuel cell to independently output the current power demand; if the current SBC of the power battery is greater than or equal to the third preset threshold, calculating the output power of the fuel cell based on the discharge power of the power battery and the current power demand, and coordinating the vehicle's fuel cell and power battery to jointly output the current power demand, wherein the third preset threshold is greater than the second preset threshold.

[0045] The second and third preset thresholds can be set according to actual needs without specific limitations.

[0046] It is understood that the embodiments of this application can control the output power of the vehicle's fuel cell and power battery based on the current state of charge of the power battery, the discharge power of the power battery, and the current power demand, so as to comprehensively improve the working efficiency of the system and reduce the overall cost of the system.

[0047] Specifically, such as Figure 2As shown, if P2≤P1<M, the fuel cell engine is started, and the hydrogen internal combustion engine remains idle / off. If the power battery SOC<A, the output power of the fuel cell engine is controlled to P3=P1-P2 (the power battery has low charge and needs to be charged, so P2 is a negative number). If A≤SOC<B, the output power of the fuel cell engine is controlled to P3=P1. If SOC≥B, the output power of the fuel cell engine is controlled to P3=P1-P2 (the power battery has high charge and can be discharged, so P2 is a positive number). Here, A corresponds to the second preset threshold mentioned above, and B corresponds to the third preset threshold mentioned above.

[0048] It should be noted that when the power battery has a low charge, the fuel cell engine can supplement the power battery to make up for the shortfall.

[0049] In this embodiment of the application, the coordinated control of the hydrogen internal combustion engine, fuel cell and power battery of the vehicle to output power includes: controlling the output power of the fuel engine to a fourth preset threshold; and coordinating the output power of the hydrogen internal combustion engine, fuel cell and power battery of the vehicle to output the current demand power according to the current state of charge of the power battery, the discharge power of the power battery, the output power of the fuel engine and the current demand power.

[0050] The fourth preset threshold can be set according to actual needs without specific limitations.

[0051] It is understood that the embodiments of this application can control the output power of the fuel engine to be maintained at a certain power. Based on the current state of charge of the power battery, the discharge power of the power battery, the output power of the fuel engine and the current power demand, the hydrogen internal combustion engine, fuel cell and power battery of the vehicle are coordinated to output the current power demand, so as to comprehensively improve the working efficiency of the system and reduce the overall cost of the system.

[0052] In this embodiment, the method of coordinating the output power of the vehicle's hydrogen internal combustion engine, fuel cell, and power battery based on the current state of charge (SBC) of the power battery, the discharge power of the power battery, the output power of the fuel engine, and the current power demand includes: if the current SBC of the power battery is less than a second preset threshold, then determining the output power of the hydrogen internal combustion engine based on the discharge power of the power battery, the output power of the fuel engine, and the current power demand, and controlling the fuel cell and hydrogen internal combustion engine to output the current power demand; if the current SBC of the power battery is greater than or equal to the second preset threshold and less than a third preset threshold, then determining the output power of the hydrogen internal combustion engine based on the output power of the fuel engine and the current power demand, and coordinating the output power of the vehicle's hydrogen internal combustion engine and fuel cell to output the current power demand; if the current SBC of the power battery is greater than or equal to the third preset threshold, then calculating the output power of the hydrogen internal combustion engine based on the discharge power of the power battery, the output power of the fuel engine, and the current power demand, and coordinating the output power of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery to output the current power demand.

[0053] It is understood that the embodiments of this application can coordinate the output of the vehicle's hydrogen internal combustion engine, fuel cell and power battery to the current required power based on the current state of charge of the power battery, the discharge power of the power battery, the output power of the fuel engine and the current required power, so as to comprehensively improve the working efficiency of the system and reduce the overall cost of the system.

[0054] Specifically, such as Figure 2 As shown, if P1≥M, the fuel cell engine is started, and the output power of the fuel cell engine is controlled to P3=N. The hydrogen internal combustion engine is started. If the power battery SOC<A, the output power of the hydrogen internal combustion engine is controlled to P4=P1-P3-P2 (the power battery has low charge and needs to be charged, so P2 is a negative number); if A≤SOC<B, the output power of the hydrogen internal combustion engine is controlled to P4=P1-P3; if SOC≥B, the output power of the hydrogen internal combustion engine is controlled to P4=P1-P3-P2 (the power battery has high charge and can be discharged, so P2 is a positive number).

[0055] According to the multi-power source control method for vehicles proposed in this application, the current power demand of the vehicle and the current state of charge of the power battery are obtained. The output power of the power battery is determined based on the current state of charge of the power battery. Based on the output power of the power battery and the current power demand of the vehicle, at least one output power of the vehicle's fuel cell, hydrogen internal combustion engine and power battery is controlled in a coordinated manner. This can comprehensively improve the working efficiency of the system and reduce the overall cost of the system, and has high applicability.

[0056] The following will combine Figure 2 The multi-power source control method for vehicles described in this application is explained in detail, and the specific steps are as follows:

[0057] Step 1: Obtain the current required power P1, obtain the current SOC of the power battery, and determine the discharge power P2 of the power battery based on the SOC of the power battery.

[0058] Step 2: If P1 < P2, the fuel cell engine remains idle / off, the hydrogen internal combustion engine remains idle / off, and the vehicle's power demand is provided by the power battery.

[0059] If P2≤P1<M, start the fuel cell engine, and keep the hydrogen internal combustion engine idling / off. If the power battery SOC<A, control the fuel cell engine output power P3=P1-P2 (the power battery has low charge and needs to be charged, so P2 is a negative number). If A≤SOC<B, control the fuel cell engine output power P3=P1. If SOC≥B, control the fuel cell engine output power P3=P1-P2 (the power battery has high charge and can be discharged, so P2 is a positive number).

[0060] If P1≥M, start the fuel cell engine and control the fuel cell engine output power P3=N. Start the hydrogen internal combustion engine. If the power battery SOC<A, control the hydrogen internal combustion engine output power P4=P1-P3-P2 (the power battery has low charge and needs to be charged, so P2 is a negative number). If A≤SOC<B, control the hydrogen internal combustion engine output power P4=P1-P3. If SOC≥B, control the hydrogen internal combustion engine output power P4=P1-P3-P2 (the power battery has high charge and can be discharged, so P2 is a positive number).

[0061] Next, the multi-power source control device for a vehicle according to an embodiment of this application is described with reference to the accompanying drawings.

[0062] Figure 3 This is a block diagram of a multi-power source control device for a vehicle according to an embodiment of this application.

[0063] like Figure 3 As shown, the multi-power source control device 10 of the vehicle includes: an acquisition module 110, a determination module 120 and a control module 130.

[0064] The acquisition module 100 is used to acquire the current power demand of the vehicle and the current state of charge of the power battery; the determination module 200 is used to determine the discharge power of the power battery based on the current state of charge of the power battery; and the control module 300 is used to coordinately control at least one output power of the vehicle's fuel cell, hydrogen internal combustion engine and power battery based on the discharge power and the power demand.

[0065] It should be noted that the foregoing explanation of the multi-power source control method embodiment for vehicles also applies to the multi-power source control device for vehicles in this embodiment, and will not be repeated here.

[0066] According to the multi-power source control device for vehicles proposed in this application, the current power demand of the vehicle and the current state of charge of the power battery are obtained. The output power of the power battery is determined based on the current state of charge of the power battery. Based on the output power of the power battery and the current power demand of the vehicle, at least one output power of the vehicle's fuel cell, hydrogen internal combustion engine and power battery is controlled in a coordinated manner. This can comprehensively improve the working efficiency of the system and reduce the overall cost of the system, and has high applicability.

[0067] Figure 4 This is a schematic diagram of the vehicle structure provided in an embodiment of this application.

[0068] like Figure 4 As shown, the vehicle 20 may include: a power battery 210, a fuel cell 220, a hydrogen internal combustion engine 230, and a vehicle controller 240.

[0069] Among them, the hydrogen internal combustion engine outputs power based on the exhaust gas and wastewater of the fuel cell, and the vehicle controller, based on the multi-power source control method of the vehicle in the above embodiment, coordinates the output power of at least one of the fuel cell, hydrogen internal combustion engine and power battery of the vehicle.

[0070] Specifically, air is introduced into the cathode of the fuel cell engine reaction and hydrogen is introduced into the anode. The air at the cathode and the hydrogen at the anode generate electricity under the action of the catalyst in the membrane electrode assembly. During the reaction, a large amount of water is produced and accumulates at the cathode and anode. Since there is a large amount of nitrogen in the air, nitrogen diffuses into the anode through the proton exchange membrane. Over time, this causes the hydrogen concentration at the anode to decrease, resulting in a reduction in the stack voltage.

[0071] Fuel cells generate a large amount of water and exhaust gas during operation. This water can be recycled and reused to improve the overall efficiency and resource utilization of the system. The hydrogen internal combustion engine of this application outputs power based on the exhaust gas and wastewater of the fuel cell. The hydrogen internal combustion engine generates a large amount of heat during operation, requiring an effective cooling system to maintain normal operating temperature. At this time, the water generated by the fuel cell can be used for the cooling system, absorbing and removing the heat from the engine through circulating water. The hydrogen internal combustion engine requires appropriate humidity during combustion to improve combustion efficiency. At this time, the water generated by the fuel cell can be used to humidify the air entering the hydrogen internal combustion engine, ensuring optimal humidity conditions during combustion. The water generated by the fuel cell can be electrolyzed and decomposed again into hydrogen and oxygen, providing an additional hydrogen source for the system.

[0072] According to the vehicle proposed in the embodiments of this application, the hydrogen internal combustion engine outputs power based on the exhaust gas and wastewater of the fuel cell, and uses the vehicle controller to coordinate the output power of at least one of the vehicle's fuel cell, hydrogen internal combustion engine and power battery, thereby comprehensively improving the system's working efficiency and reducing the overall system cost, and has high applicability.

[0073] This application also provides a computer-readable storage medium storing a computer program or instructions thereon, which, when executed by a processor, implements the above-described multi-power source control method for a vehicle.

[0074] This application also provides a computer program product, including a computer program or instructions, characterized in that, when the computer program or instructions are executed, they implement the above-mentioned multi-power source control method for vehicles.

[0075] In the description of this specification, the 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 this application. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0077] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0078] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using 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 more 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.

[0079] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

Claims

1. A multi-power source control method for a vehicle, characterized in that, Includes the following steps: Obtain the vehicle's current power demand and the current state of charge of the power battery; The discharge power of the power battery is determined based on its current state of charge. The system coordinates the output power of at least one of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery according to the discharge power and the demand power. Specifically, this coordinate control includes: if the discharge power of the power battery is greater than the current demand power, controlling the power battery to output power; if the discharge power of the power battery is less than or equal to the current demand power and the current demand power is less than a first preset threshold, then coordinating the output power of the vehicle's fuel cell and the power battery; if the current demand power is greater than or equal to the first preset threshold, then coordinating the output power of the vehicle's hydrogen internal combustion engine, the fuel cell, and the power battery. The coordinated control of the output power of the vehicle's hydrogen internal combustion engine, the fuel cell, and the power battery includes: controlling the fuel engine's output power to a fourth preset threshold; and coordinating the output power of the vehicle's hydrogen internal combustion engine, the fuel cell, and the power battery according to the current state of charge of the power battery, the discharge power of the power battery, the output power of the fuel engine, and the current demand power.

2. The multi-power source control method for vehicles according to claim 1, characterized in that, The coordinated control of the vehicle's fuel cell and power battery output includes: Identify the current state of charge of the power battery; The power output of the vehicle's fuel cell and the power battery is controlled based on the current state of charge of the power battery, the discharge power of the power battery, and the current power demand.

3. The multi-power source control method for vehicles according to claim 2, characterized in that, Controlling the power output of the vehicle's fuel cell and the power battery based on the current state of charge of the power battery, the discharge power of the power battery, and the current power demand includes: If the current state of charge of the power battery is less than the second preset threshold, the output power of the fuel cell is determined based on the discharge power of the power battery and the current demand power, and the fuel cell is controlled to output the current demand power. If the current state of charge of the power battery is greater than or equal to the second preset threshold and less than the third preset threshold, then the fuel cell is controlled to independently output the current required power. If the current state of charge of the power battery is greater than or equal to the third preset threshold, the output power of the fuel cell is calculated based on the discharge power of the power battery and the current power demand, and the fuel cell and the power battery of the vehicle are coordinated to output the current power demand, wherein the third preset threshold is greater than the second preset threshold.

4. The multi-power source control method for vehicles according to claim 3, characterized in that, The method of coordinating the control of the vehicle's hydrogen internal combustion engine, fuel cell, and power battery to output the current required power based on the current state of charge of the power battery, the discharge power of the power battery, the output power of the fuel engine, and the current required power includes: If the current state of charge of the power battery is less than the second preset threshold, the output power of the hydrogen internal combustion engine is determined based on the discharge power of the power battery, the output power of the fuel engine and the current demand power, and the fuel cell and the hydrogen internal combustion engine are controlled to output the current demand power. If the current state of charge of the power battery is greater than or equal to the second preset threshold and less than the third preset threshold, then the output power of the hydrogen internal combustion engine is determined according to the output power of the fuel engine and the current demand power, and the hydrogen internal combustion engine and the fuel cell of the vehicle are coordinated to output the current demand power. If the current state of charge of the power battery is greater than or equal to a third preset threshold, the output power of the hydrogen internal combustion engine is calculated based on the discharge power of the power battery, the output power of the fuel engine, and the current power demand, and the fuel cell, hydrogen internal combustion engine, and power battery of the vehicle are coordinated to output the current power demand.

5. A multi-power source control device for a vehicle, characterized in that, include: The acquisition module is used to acquire the vehicle's current power demand and the current state of charge of the power battery; The determination module is used to determine the discharge power of the power battery based on the current state of charge of the power battery; A control module is configured to coordinately control at least one output power of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery based on the discharge power and the demand power. The coordinated control of the at least one output power of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery based on the discharge power and the demand power includes: if the discharge power of the power battery is greater than the current demand power, then controlling the power battery to output power; if the discharge power of the power battery is less than or equal to the current demand power and the current demand power is less than a first preset threshold, then coordinating the output power of the vehicle's fuel cell and the power battery; if the current demand power is greater than or equal to the first preset threshold, then coordinating the output power of the vehicle's hydrogen internal combustion engine, the fuel cell, and the power battery. The coordinated control of the output power of the vehicle's hydrogen internal combustion engine, the fuel cell, and the power battery includes: controlling the output power of the fuel engine to a fourth preset threshold; and coordinating the output power of the vehicle's hydrogen internal combustion engine, the fuel cell, and the power battery to output the current demand power based on the current state of charge of the power battery, the discharge power of the power battery, the output power of the fuel engine, and the current demand power.

6. A vehicle, characterized in that, include: A power battery, a fuel cell, and a hydrogen internal combustion engine, wherein the hydrogen internal combustion engine outputs power based on the exhaust gas and wastewater from the fuel cell; A vehicle controller, based on the multi-power source control method for vehicles according to any one of claims 1-4, collaboratively controls at least one output power of the vehicle's fuel cell, hydrogen internal combustion engine, and power battery.

7. A computer-readable storage medium having a computer program or instructions stored thereon, characterized in that, When the computer program or instructions are executed by the processor, they are used to implement the multi-power source control method for a vehicle as described in any one of claims 1-4.

8. A computer program product, comprising a computer program or instructions, characterized in that, When the computer program or instructions are executed, they implement the multi-power source control method for a vehicle as described in any one of claims 1-4.

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