Control method and device of hydrogen supply system, computer readable storage medium and vehicle

Abstract

The invention discloses a control method and device of a hydrogen supply system, a computer readable storage medium and a vehicle, the hydrogen supply system is used for conveying hydrogen to a fuel cell and a hydrogen energy engine, and the method comprises the steps that the whole vehicle demand power is obtained; determining first target power of a fuel cell and second target power of a hydrogen energy engine according to the required power of the whole vehicle; and the amount of hydrogen entering the fuel cell is adjusted according to the power interval where the first target power is located, and the amount of hydrogen entering the hydrogen energy engine is adjusted according to the second target power. According to the control method, cooperative control of the fuel cell and the hydrogen energy engine can be achieved, and the overall efficiency of the system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen supply systems, and in particular to a control method for a hydrogen supply system, a computer-readable storage medium, a vehicle, and a control device for a hydrogen supply system. Background Art

[0002] Facing the dual-carbon era, the application of clean energy in automobiles is gradually being put on the agenda. In order to meet the demand for the gradual reduction of carbon emissions, hydrogen is widely used as a clean energy source. At present, when the fuel cell and hydrogen engine are coordinated and controlled, the working status of the two power sources is not reasonably allocated. That is, if the fuel cell is used as the main power output source and the hydrogen engine is used as a supplementary output source, the huge heat generated by the high-power fuel cell will be a big challenge for the layout and thermal management of the entire cabin. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present invention is to propose a control method for a hydrogen supply system, obtain the required power of the whole vehicle, determine the first target power of the fuel cell and the second target power of the hydrogen engine according to the required power of the whole vehicle, adjust the amount of hydrogen entering the fuel cell according to the power range of the first target power and adjust the amount of hydrogen entering the hydrogen engine according to the second target power, so as to achieve coordinated control of the fuel cell and the hydrogen engine and improve the overall efficiency of the system.

[0004] A second object of the present invention is to provide a computer-readable storage medium.

[0005] A third object of the present invention is to provide a vehicle.

[0006] A fourth object of the present invention is to provide a control device for a hydrogen supply system.

[0007] To achieve the above-mentioned objectives, a first embodiment of the present invention proposes a control method for a hydrogen supply system, the method comprising: obtaining the required power of the whole vehicle; determining a first target power of the fuel cell and a second target power of the hydrogen engine according to the required power of the whole vehicle; adjusting the amount of hydrogen entering the fuel cell according to the power range of the first target power and adjusting the amount of hydrogen entering the hydrogen engine according to the second target power.

[0008] According to the control method of the hydrogen supply system of the embodiment of the present invention, the required power of the whole vehicle is obtained, the first target power of the fuel cell and the second target power of the hydrogen engine are determined according to the required power of the whole vehicle, the amount of hydrogen entering the fuel cell is adjusted according to the power range of the first target power, and the amount of hydrogen entering the hydrogen engine is adjusted according to the second target power. Therefore, the method can realize the coordinated control of the fuel cell and the hydrogen engine, and improve the overall efficiency of the system.

[0009] In addition, the control method of the hydrogen supply system according to the above embodiment of the present invention may also have the following additional technical features:

[0010] According to an embodiment of the present invention, different power intervals correspond to different amounts of hydrogen entering the fuel cell.

[0011] According to one embodiment of the present invention, a first pressure reducing valve is correspondingly arranged in the fuel cell, and the method further includes: when the first target power is less than or equal to a first preset power threshold, adjusting the opening of the first pressure reducing valve so that the hydrogen pressure is in a first pressure stage; when the first target power is greater than the first preset power threshold and less than or equal to a second preset power threshold, adjusting the opening of the first pressure reducing valve so that the hydrogen pressure is in a second pressure stage; when the first target power is greater than the second preset power threshold and less than or equal to a third preset power threshold, adjusting the opening of the first pressure reducing valve so that the hydrogen pressure is in a third pressure stage; wherein the hydrogen pressure in the third pressure stage is greater than the hydrogen pressure in the second pressure stage, and the hydrogen pressure in the second pressure stage is greater than the hydrogen pressure in the first pressure stage.

[0012] According to an embodiment of the present invention, the first target power does not exceed the third preset power threshold.

[0013] According to one embodiment of the present invention, the hydrogen entering the hydrogen engine includes the hydrogen provided to the hydrogen engine by a hydrogen cylinder and the hydrogen generated when the fuel cell is working.

[0014] According to one embodiment of the present invention, a second pressure reducing valve is correspondingly arranged in the hydrogen engine, and regulating the amount of hydrogen entering the hydrogen engine according to the second target power comprises: adjusting the opening of the second pressure reducing valve based on the second target power to regulate the amount of hydrogen entering the hydrogen engine, wherein the opening of the second pressure reducing valve is positively correlated with the second target power.

[0015] According to one embodiment of the present invention, the method further comprises: drying the hydrogen generated when the fuel cell is in operation.

[0016] To achieve the above-mentioned purpose, a second embodiment of the present invention proposes a computer-readable storage medium having a program stored thereon, which implements the above-mentioned control method of the hydrogen supply system when executed by a processor.

[0017] According to the computer-readable storage medium of the embodiment of the present invention, by implementing the above-mentioned control method of the hydrogen supply system when executed, it is possible to achieve coordinated control of the fuel cell and the hydrogen engine, thereby improving the overall efficiency of the system.

[0018] To achieve the above-mentioned purpose, a vehicle is proposed in an embodiment of the third aspect of the present invention, comprising a memory, a processor and a program stored in the memory and executable on the processor, wherein when the processor executes the program, the above-mentioned control method of the hydrogen supply system is implemented.

[0019] According to the vehicle of the embodiment of the present invention, by executing the above-mentioned control method of the hydrogen supply system, it is possible to achieve coordinated control of the fuel cell and the hydrogen engine, thereby improving the overall efficiency of the system.

[0020] To achieve the above-mentioned purpose, the fourth aspect of the present invention proposes a control device for a hydrogen supply system, wherein the hydrogen supply system is used to transport hydrogen to a fuel cell and a hydrogen engine, and the device includes: an acquisition module, used to obtain the required power of the whole vehicle; a determination module, used to determine the first target power of the fuel cell and the second target power of the hydrogen engine according to the required power of the whole vehicle; and a control module, used to adjust the amount of hydrogen entering the fuel cell according to the power range of the first target power and to adjust the amount of hydrogen entering the hydrogen engine according to the second target power.

[0021] According to the control device of the hydrogen supply system of the embodiment of the present invention, the acquisition module is used to obtain the required power of the whole vehicle, the determination module is used to determine the first target power of the fuel cell and the second target power of the hydrogen engine according to the required power of the whole vehicle, and the control module is used to adjust the amount of hydrogen entering the fuel cell according to the power range of the first target power and adjust the amount of hydrogen entering the hydrogen engine according to the second target power. As a result, the device can realize the coordinated control of the fuel cell and the hydrogen engine, and improve the overall efficiency of the system.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a flow chart of a control method of a hydrogen supply system according to an embodiment of the present invention;

[0024] Figure 2 is a flow chart of a control method of a hydrogen supply system according to a specific example of the present invention;

[0025] Figure 3 is a block diagram of a vehicle according to an embodiment of the present invention;

[0026] Figure 4 Schematic diagram of a control device for a hydrogen supply system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following describes a control method for a hydrogen supply system, a computer-readable storage medium, a vehicle, and a control device for a hydrogen supply system provided in embodiments of the present invention with reference to the accompanying drawings.

[0029] Figure 1 4 is a flow chart of a control method of a hydrogen supply system according to an embodiment of the present invention.

[0030] like Figure 1 As shown, the control method of the hydrogen supply system of the embodiment of the present invention may include the following steps:

[0031] S1, obtain the required power of the vehicle.

[0032] S2, determining a first target power of the fuel cell and a second target power of the hydrogen engine according to the required power of the entire vehicle.

[0033] S3, adjusting the amount of hydrogen entering the fuel cell according to the power range of the first target power and adjusting the amount of hydrogen entering the hydrogen engine according to the second target power. Different power ranges correspond to different amounts of hydrogen entering the fuel cell.

[0034] Specifically, the vehicle power requirement refers to the total power required by the vehicle under specific driving conditions. For example, the vehicle power requirement may include the vehicle drive power, auxiliary system power, etc. Among them, the vehicle drive power is the power required to overcome rolling resistance, air resistance, slope resistance, etc. during the vehicle's driving process, and the auxiliary system power is the power requirement of the vehicle's auxiliary systems such as air conditioning, lighting, audio, and electronic equipment. When obtaining the vehicle power requirement, sensors on the vehicle (such as speed sensors, acceleration sensors, torque sensors, etc.) can be used to monitor the dynamic state of the vehicle in real time, so as to calculate the power required for the vehicle to travel, and the sum of the power consumed by the power devices currently in operation such as air conditioning, lighting, audio, and electronic equipment is used as the vehicle power requirement.

[0035] After obtaining the required power of the whole vehicle, the first target power of the fuel cell and the second target power of the hydrogen engine can be determined according to the required power of the whole vehicle. That is, the first target power of the fuel cell refers to the power part that the fuel cell needs to provide under the current required power of the whole vehicle. The second target power of the hydrogen engine is the remaining power demand, which is provided by the hydrogen engine. When determining the first target power and the second target power, the efficiency and performance of the entire power system are considered, that is, the optimal working range and efficiency of the fuel cell and the hydrogen engine are considered. For example, calibration is performed in advance through experiments. After determining a required power of the whole vehicle, the appropriate first target power and second target power are determined based on the economy of the whole vehicle and the optimal efficiency of the system. Finally, the required power of the whole vehicle, the first target power and the second target power are stored in a data table, and the required power of the whole vehicle is in a one-to-one correspondence with the first target power and the second target power. After determining a required power of the whole vehicle, the optimal first target power and the second target power can be determined according to the table.

[0036] After determining the first target power, the amount of hydrogen entering the fuel cell can be adjusted according to the power interval in which the first target power is located, that is, the output power of the fuel cell is directly related to the amount of hydrogen input, so the supply of hydrogen needs to be precisely controlled to match the first target power. In addition, different power intervals correspond to different amounts of hydrogen entering the fuel cell. This means that multiple power intervals are preset, and each interval has a corresponding hydrogen supply strategy. For example, in a low-power interval, less hydrogen supply may be required; while in a high-power interval, more hydrogen supply is required to meet higher power requirements. Similarly, the amount of hydrogen entering the hydrogen engine can be adjusted according to the second target power, for example, by adjusting the pressure and flow of hydrogen to ensure that the hydrogen engine can provide the required power.

[0037] As a result, the power output of the fuel cell and hydrogen engine, as well as the corresponding hydrogen supply, can be flexibly adjusted according to the power demand of the vehicle. This not only improves the efficiency of energy utilization, but also helps to optimize the performance of the vehicle and reduce emissions. By precisely controlling the supply of hydrogen, it can ensure that the fuel cell and hydrogen engine can work efficiently and stably under various working conditions.

[0038] According to one embodiment of the present invention, a first pressure reducing valve is correspondingly provided for the fuel cell, and the control method of the hydrogen supply system further includes: when the first target power is less than or equal to the first preset power threshold, the opening of the first pressure reducing valve is adjusted so that the hydrogen pressure is in the first pressure stage; when the first target power is greater than the first preset power threshold and less than or equal to the second preset power threshold, the opening of the first pressure reducing valve is adjusted so that the hydrogen pressure is in the second pressure stage; when the first target power is greater than the second preset power threshold and less than or equal to the third preset power threshold, the opening of the first pressure reducing valve is adjusted so that the hydrogen pressure is in the third pressure stage; wherein the hydrogen pressure in the third pressure stage is greater than the hydrogen pressure in the second pressure stage, and the hydrogen pressure in the second pressure stage is greater than the hydrogen pressure in the first pressure stage. wherein the first target power does not exceed the third preset power threshold. wherein the first preset power threshold, the second preset power threshold and the third preset power threshold can be determined according to actual conditions.

[0039] Specifically, by setting the first pressure reducing valve and adjusting its opening according to different ranges of the first target power, the hydrogen pressure entering the fuel cell can be effectively controlled. That is, firstly, the magnitude relationship between the first target power and the first preset power threshold is judged, and the first preset power threshold is the minimum power level at which the fuel cell begins to need to increase the hydrogen pressure. When the first target power is less than or equal to the first preset power threshold, the fuel cell operates under lower performance requirements, and the first pressure reducing valve can be adjusted to keep the hydrogen pressure in the first pressure stage (lowest stage) to meet the basic power requirements. When the first target power is greater than the first preset power threshold, if the first target power is greater than the first preset power threshold and less than or equal to the second preset power threshold, it means that the fuel cell needs more hydrogen to meet the higher power output requirements, and the opening of the first pressure reducing valve can be adjusted to make the hydrogen pressure in the second pressure stage to provide more hydrogen supply.

[0040] The first target power is judged against the second preset power threshold and the third preset power threshold. When the first target power is greater than the second preset power threshold and less than or equal to the third preset power threshold, the opening of the first pressure reducing valve can be adjusted to make the hydrogen pressure at the third pressure stage, that is, the hydrogen pressure is increased to the highest stage to support the maximum power output of the fuel cell. The third preset power threshold is the highest power threshold at which the fuel cell can operate safely, and the first target power does not exceed the third preset power threshold.

[0041] Therefore, by precisely controlling the hydrogen pressure in stages, it is possible to ensure that the fuel cell can operate efficiently under different power requirements. By avoiding unnecessary high-pressure operation, the pressure cycle of the fuel cell can be reduced and its service life can be extended. Using lower hydrogen pressure when power demand is low can reduce energy waste and improve overall energy efficiency.

[0042] According to one embodiment of the present invention, the hydrogen entering the hydrogen engine includes the hydrogen provided to the hydrogen engine by the hydrogen cylinder and the hydrogen generated when the fuel cell is working.

[0043] Specifically, in order to improve energy efficiency and economy, the hydrogen source of the hydrogen engine may include not only the hydrogen provided by the hydrogen cylinder to the hydrogen engine, but also the hydrogen generated when the fuel cell is working. That is, the hydrogen cylinder is a common way to store hydrogen in hydrogen vehicles. The hydrogen is stored in the bottle under high pressure and transported to the hydrogen engine through pipes and control valves. In addition, the hydrogen provided by the hydrogen cylinder is adjusted by a pressure reducing valve to meet the working requirements of the hydrogen engine. During the operation of the fuel cell, part of the hydrogen does not participate in the electrochemical reaction. This part is called waste hydrogen. The waste hydrogen can be collected and transported to the hydrogen engine to achieve energy reuse. This allows the fuel cell and the hydrogen engine to work together and dynamically adjust their respective working states and hydrogen supply according to the vehicle's required power requirements.

[0044] Therefore, by utilizing the hydrogen generated by the fuel cell to deliver it to the hydrogen engine, direct hydrogen emissions are reduced, the energy efficiency of the entire system is improved, and the overall cost of hydrogen is reduced.

[0045] According to one embodiment of the present invention, a second pressure reducing valve is correspondingly provided for the hydrogen engine, and the amount of hydrogen entering the hydrogen engine is adjusted according to the second target power, including: adjusting the opening of the second pressure reducing valve based on the second target power to adjust the amount of hydrogen entering the hydrogen engine, wherein the opening of the second pressure reducing valve is positively correlated with the second target power.

[0046] Specifically, the hydrogen engine is provided with a second pressure reducing valve, which is mainly used to reduce the pressure of high-pressure hydrogen to a pressure level suitable for the combustion of the hydrogen engine, and by adjusting the opening of the second pressure reducing valve, the flow of hydrogen entering the hydrogen engine can be controlled, thereby adjusting the power output of the engine. In order to ensure that the hydrogen engine can accurately receive the right amount of hydrogen according to the actual power demand to achieve efficient and stable combustion, the opening of the second pressure reducing valve can be adjusted according to the second target power to adjust the amount of hydrogen entering the hydrogen engine. For example, the required hydrogen flow can be calculated based on the second target power, and the opening of the second pressure reducing valve can be adjusted accordingly. By real-time monitoring of the actual flow and pressure of hydrogen, dynamic adjustments can be made to ensure that the hydrogen supply is consistent with the second target power.

[0047] Among them, the second target power refers to the actual power that the hydrogen engine needs to provide, and the opening of the second pressure reducing valve is positively correlated with the second target power. That is to say, when the second target power increases, more hydrogen is needed to support combustion, so the opening of the second pressure reducing valve will increase accordingly to increase the hydrogen flow rate. When the second target power decreases, less hydrogen is needed to support combustion, so the opening of the second pressure reducing valve will decrease accordingly to reduce the hydrogen flow rate. Therefore, by accurately controlling the opening of the second pressure reducing valve, it can be ensured that the hydrogen engine can obtain an appropriate amount of hydrogen under different power requirements, thereby achieving efficient combustion.

[0048] In addition, the design of the second pressure reducing valve may include an overpressure protection mechanism to prevent safety risks caused by excessive hydrogen pressure, and the sealing of the second pressure reducing valve and its connecting pipes should be regularly checked to prevent hydrogen leakage.

[0049] According to one embodiment of the present invention, the method for controlling the hydrogen supply system further includes: drying the hydrogen generated when the fuel cell is operating.

[0050] Specifically, in order to ensure the normal use of hydrogen engines, the hydrogen generated by fuel cells needs to be dried before being supplied to hydrogen engines. In other words, dry hydrogen can improve the combustion efficiency of hydrogen engines, and if there is too much water in the hydrogen, it may affect the combustion characteristics of hydrogen, resulting in incomplete combustion, thereby reducing the efficiency and performance of hydrogen engines. In addition, in low temperature environments, the water in the hydrogen may freeze in the pipes and valves of the hydrogen engine, causing blockage and performance degradation. This risk can be reduced through drying. In addition, dry hydrogen helps reduce corrosion and wear inside the hydrogen engine, thereby extending the service life of the equipment.

[0051] Therefore, when the fuel cell and the hydrogen engine work together, the hydrogen produced by the fuel cell may contain a certain amount of water. Drying the waste hydrogen can ensure the quality of the hydrogen received by the hydrogen engine, thereby optimizing the working efficiency of the entire system. It is an important step to ensure the performance, safety and life of the hydrogen engine.

[0052] Combine the following Figure 2 The control method of the present invention will be described.

[0053] As a specific example, the control method of the hydrogen supply system of the present invention may include the following steps:

[0054] S101, obtaining the required power of the entire vehicle.

[0055] S102, determining a first target power of the fuel cell and a second target power of the hydrogen engine according to the required power of the entire vehicle.

[0056] S103, determining whether the first target power is less than or equal to a first preset power threshold. If yes, executing step S104; if no, executing step S105.

[0057] S104, adjusting the opening of the first pressure reducing valve so that the hydrogen pressure is at the first pressure stage, and proceeding to step S109.

[0058] S105, determining whether the first target power is greater than a first preset power threshold and less than or equal to a second preset power threshold. If yes, executing step S106; if no, executing step S107.

[0059] S106, adjusting the opening of the first pressure reducing valve so that the hydrogen pressure is at the second pressure stage, and proceeding to step S109.

[0060] S107, determine whether the first target power is greater than the second preset power threshold and less than or equal to the third preset power threshold. If yes, execute step S108; if not, execute step S102.

[0061] S108, adjusting the opening of the first pressure reducing valve so that the hydrogen pressure is at the third pressure stage.

[0062] S109, adjusting the opening of the second pressure reducing valve based on the second target power to adjust the amount of hydrogen entering the hydrogen engine, wherein the opening of the second pressure reducing valve is positively correlated with the second target power.

[0063] In summary, according to the control method of the hydrogen supply system of the embodiment of the present invention, the required power of the whole vehicle is obtained, the first target power of the fuel cell and the second target power of the hydrogen engine are determined according to the required power of the whole vehicle, the amount of hydrogen entering the fuel cell is adjusted according to the power range of the first target power, and the amount of hydrogen entering the hydrogen engine is adjusted according to the second target power. Therefore, the method can realize the coordinated control of the fuel cell and the hydrogen engine, and improve the overall efficiency of the system.

[0064] Corresponding to the above embodiment, the present invention also proposes a computer-readable storage medium.

[0065] The computer-readable storage medium of the embodiment of the present invention stores a program thereon, and when the program is executed by a processor, the control method of the hydrogen supply system described above is implemented.

[0066] According to the computer-readable storage medium of the embodiment of the present invention, by executing the above-mentioned control method of the hydrogen supply system, it is possible to achieve coordinated control of the fuel cell and the hydrogen engine, thereby improving the overall efficiency of the system.

[0067] Corresponding to the above embodiment, the present invention also provides a vehicle.

[0068] like Figure 3 As shown, the vehicle 200 of the embodiment of the present invention may include: a memory 210, a processor 220, and a program stored in the memory 210 and executable on the processor 220. When the processor 220 executes the program, the above-mentioned control method of the hydrogen supply system is implemented.

[0069] According to the vehicle of the embodiment of the present invention, by executing the above-mentioned control method of the hydrogen supply system, it is possible to achieve coordinated control of the fuel cell and the hydrogen engine, thereby improving the overall efficiency of the system.

[0070] Corresponding to the above-mentioned embodiment, the present invention further proposes a control device for a hydrogen supply system.

[0071] like Figure 4 As shown, the control device 100 of the hydrogen supply system according to the embodiment of the present invention includes: an acquisition module 110 , a determination module 120 and a control module 130 .

[0072] Among them, the acquisition module 110 is used to obtain the required power of the whole vehicle. The determination module 120 is used to determine the first target power of the fuel cell and the second target power of the hydrogen engine according to the required power of the whole vehicle. The control module 130 is used to adjust the amount of hydrogen entering the fuel cell according to the power range of the first target power and adjust the amount of hydrogen entering the hydrogen engine according to the second target power.

[0073] According to an embodiment of the present invention, different power intervals correspond to different amounts of hydrogen entering the fuel cell.

[0074] According to one embodiment of the present invention, a first pressure reducing valve is correspondingly provided for the fuel cell, and the control module 130 is further used for: when the first target power is less than or equal to a first preset power threshold, adjusting the opening of the first pressure reducing valve so that the hydrogen pressure is in a first pressure stage; when the first target power is greater than the first preset power threshold and less than or equal to the second preset power threshold, adjusting the opening of the first pressure reducing valve so that the hydrogen pressure is in a second pressure stage; when the first target power is greater than the second preset power threshold and less than or equal to the third preset power threshold, adjusting the opening of the first pressure reducing valve so that the hydrogen pressure is in a third pressure stage; wherein, the hydrogen pressure in the third pressure stage is greater than the hydrogen pressure in the second pressure stage, and the hydrogen pressure in the second pressure stage is greater than the hydrogen pressure in the first pressure stage.

[0075] According to an embodiment of the present invention, the first target power does not exceed a third preset power threshold.

[0076] According to one embodiment of the present invention, the hydrogen entering the hydrogen engine includes the hydrogen provided to the hydrogen engine by the hydrogen cylinder and the hydrogen generated when the fuel cell is working.

[0077] According to one embodiment of the present invention, a second pressure reducing valve is correspondingly provided for the hydrogen engine, and the control module 130 adjusts the amount of hydrogen entering the hydrogen engine according to the second target power, and is specifically used for: adjusting the opening of the second pressure reducing valve based on the second target power to adjust the amount of hydrogen entering the hydrogen engine, wherein the opening of the second pressure reducing valve is positively correlated with the second target power.

[0078] According to an embodiment of the present invention, the control module 130 is further used to dry the hydrogen generated when the fuel cell is working.

[0079] It should be noted that for details not disclosed in the control device of the hydrogen supply system in the embodiment of the present invention, please refer to the details disclosed in the control method of the hydrogen supply system in the embodiment of the present invention, and the details will not be repeated here.

[0080] According to the control device of the hydrogen supply system of the embodiment of the present invention, the acquisition module is used to obtain the required power of the whole vehicle, the determination module is used to determine the first target power of the fuel cell and the second target power of the hydrogen engine according to the required power of the whole vehicle, and the control module is used to adjust the amount of hydrogen entering the fuel cell according to the power range of the first target power and adjust the amount of hydrogen entering the hydrogen engine according to the second target power. As a result, the device can realize the coordinated control of the fuel cell and the hydrogen engine, and improve the overall efficiency of the system.

[0081] 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 specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0082] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0084] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0085] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0086] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for controlling a hydrogen supply system, characterized in that: The hydrogen supply system is used to deliver hydrogen to a fuel cell and a hydrogen engine, and the method comprises: Obtain the required power of the vehicle; Determining a first target power of the fuel cell and a second target power of the hydrogen engine according to the required power of the entire vehicle; The amount of hydrogen entering the fuel cell is adjusted according to the power interval in which the first target power is located, and the amount of hydrogen entering the hydrogen engine is adjusted according to the second target power.

2. The control method of the hydrogen supply system according to claim 1, characterized in that: Different power ranges correspond to different amounts of hydrogen entering the fuel cell.

3. The control method of the hydrogen supply system according to claim 1, characterized in that: The fuel cell is provided with a first pressure reducing valve correspondingly, and the method further comprises: When the first target power is less than or equal to a first preset power threshold, adjusting the opening of the first pressure reducing valve so that the hydrogen pressure is at a first pressure stage; When the first target power is greater than the first preset power threshold and less than or equal to a second preset power threshold, adjusting the opening of the first pressure reducing valve so that the hydrogen pressure is at a second pressure stage; When the first target power is greater than the second preset power threshold and less than or equal to the third preset power threshold, the opening of the first pressure reducing valve is adjusted so that the hydrogen pressure is in a third pressure stage; wherein the hydrogen pressure in the third pressure stage is greater than the hydrogen pressure in the second pressure stage, and the hydrogen pressure in the second pressure stage is greater than the hydrogen pressure in the first pressure stage.

4. The control method of the hydrogen supply system according to claim 3, characterized in that: The first target power does not exceed the third preset power threshold.

5. The control method of the hydrogen supply system according to claim 1, characterized in that: The hydrogen entering the hydrogen engine includes the hydrogen provided to the hydrogen engine by a hydrogen cylinder and the hydrogen generated when the fuel cell is working.

6. The control method of the hydrogen supply system according to claim 5, characterized in that: The hydrogen engine is provided with a second pressure reducing valve, and the amount of hydrogen entering the hydrogen engine is adjusted according to the second target power, including: The opening of the second pressure reducing valve is adjusted based on the second target power to regulate the amount of hydrogen entering the hydrogen engine, wherein the opening of the second pressure reducing valve is positively correlated with the second target power.

7. The control method of the hydrogen supply system according to claim 5, characterized in that: The method further comprises: The hydrogen generated when the fuel cell is working is dried.

8. A computer-readable storage medium, characterized in that: A program is stored thereon, and when the program is executed by a processor, the control method of the hydrogen supply system according to any one of claims 1-7 is implemented.

9. A vehicle, characterized in that: include: A memory, a processor, and a program stored in the memory and executable on the processor, wherein when the processor executes the program, the control method for the hydrogen supply system according to any one of claims 1 to 7 is implemented.

10. A control device for a hydrogen supply system, characterized in that: The hydrogen supply system is used to deliver hydrogen to a fuel cell and a hydrogen engine, and the device comprises: An acquisition module is used to obtain the required power of the entire vehicle; A determination module, used to determine a first target power of the fuel cell and a second target power of the hydrogen engine according to the required power of the whole vehicle; A control module is used to adjust the amount of hydrogen entering the fuel cell according to the power range of the first target power and to adjust the amount of hydrogen entering the hydrogen engine according to the second target power.

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