Stock ratio compensation control method and system for engine rapid load pulling, vehicle and equipment

Abstract

The invention discloses a stoichiometric ratio compensation control method and system for engine rapid load pulling, a vehicle and equipment. The stoichiometric ratio compensation control method for rapid load pulling of the engine comprises the steps that state parameters of a galvanic pile under the operation working condition before dynamic load pulling are obtained, and the state parameters of the galvanic pile comprise the temperature, pressure, humidity and flow of the cathode side of the galvanic pile; according to the state parameters of the galvanic pile, the water storage amount of the cathode side of the galvanic pile under the operation condition before dynamic load pulling is obtained; obtaining environment temperature and environment humidity; obtaining a stoichiometric ratio compensation amount according to the water storage amount of the cathode side of the electric pile, the environment temperature and the environment humidity; and the original stoichiometric ratio target value is compensated according to the stoichiometric ratio compensation amount, a final stoichiometric ratio target value is obtained, and the final stoichiometric ratio target value is used for controlling the air supply flow of the engine. By adopting the method, the water storage amount of the cathode side of the electric pile before load pulling can be calculated through the state parameters of the electric pile, and the stoichiometric ratio compensation amount is obtained by combining the environmental temperature and humidity, so that the stoichiometric ratio compensation of rapid load pulling of the engine is realized.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a metering ratio compensation control method, system, vehicle and equipment for rapid engine load loading. Background Technology

[0002] During dynamic load testing of fuel cell engines, issues such as excessively rapid current rise, insufficient air supply leading to engine under-gas, and reduced cell voltage can easily arise, necessitating rapid load control. Existing methods typically obtain compensation values ​​such as air flow rate, pressure, and tailpipe valve opening time based on the load testing rate and requested power during dynamic load testing. However, they fail to consider the potential for water accumulation on the cathode side due to pre-load operating conditions, nor do they account for the impact of ambient humidity and temperature on rapid load testing. This could potentially lead to front-end flooding or under-gas risks during rapid load changes. Summary of the Invention

[0003] Based on this, it is necessary to provide a metering ratio compensation control method, system, vehicle, and equipment for rapid engine load loading to address the above-mentioned technical problems. The metering ratio compensation amount can be obtained by calculating the water content on the cathode side of the fuel cell stack before load loading through fuel cell stack state parameters and combining it with ambient temperature and humidity. This enables metering ratio compensation for rapid engine load loading.

[0004] Firstly, a metering ratio compensation control method for rapid engine load loading is provided, including: Obtain the state parameters of the fuel cell stack under the operating conditions before dynamic loading, wherein the state parameters of the fuel cell stack include the temperature, pressure, humidity and flow rate on the cathode side of the fuel cell stack; Based on the state parameters of the fuel cell stack, the water content on the cathode side of the fuel cell stack under the operating conditions before dynamic loading is obtained; Obtain ambient temperature and humidity; The metering ratio compensation amount is obtained based on the water content on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity. The original metering ratio target value is compensated based on the metering ratio compensation amount to obtain the final metering ratio target value, wherein the final metering ratio target value is used to control the air supply flow of the engine.

[0005] Furthermore, the temperature, pressure, humidity, and flow rate on the cathode side of the fuel cell stack include the temperature, pressure, humidity, and flow rate at the inlet of the cathode side of the fuel cell stack, and the temperature, pressure, humidity, and flow rate at the outlet of the cathode side of the fuel cell stack.

[0006] Further, obtaining the water content on the cathode side of the fuel cell stack under the operating conditions before dynamic loading, based on the stack's state parameters, includes: Obtain the water content of the air-side feed gas of the fuel cell stack; Obtain the water content of the gas exiting the fuel cell stack from the air side; Obtain the actual water production during the operation of the fuel cell stack; The amount of water that permeates from the cathode side of the fuel cell stack to the anode side is obtained; The water content on the cathode side of the fuel cell is obtained based on the water content of the gas entering the fuel cell on the air side, the water content of the gas exiting the fuel cell on the air side, the actual water production during fuel cell operation, and the amount of water that permeates from the cathode side to the anode side of the fuel cell.

[0007] Further, obtaining the water content of the fuel cell stack air-side feed gas includes: To obtain saturated vapor pressure; The actual partial pressure of water vapor in the air is obtained based on the saturated vapor pressure. The water content of the gas fed into the fuel cell stack on the air side is obtained based on the actual partial pressure of water vapor in the air.

[0008] Furthermore, obtaining the actual water production during stack operation includes: Obtain the charge amount, and determine the total number of moles of electrons based on the charge amount; The number of moles of water is obtained based on the total number of moles of electrons. The actual water production during the operation of the fuel cell stack is obtained based on the number of moles of water.

[0009] Further, obtaining the metering ratio compensation amount based on the water content on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity includes: By consulting the metering ratio compensation table, the water storage volume, ambient temperature, and ambient humidity corresponding to the cathode side of the fuel cell stack are obtained, and the metering ratio compensation amount is obtained. The metering ratio compensation table is pre-calibrated.

[0010] Furthermore, before obtaining the metering ratio compensation amount based on the water content on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity, the method further includes: After obtaining the state parameters of the fuel cell stack under the operating conditions before dynamic loading, it is determined whether the operating time has reached the predetermined time. If so, determine whether the loading rate is greater than the predetermined rate; If so, then the step of obtaining the metering ratio compensation amount based on the water content on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity is performed.

[0011] Secondly, a metering ratio compensation control system for rapid engine load loading is provided, including: The parameter acquisition module is used to obtain the state parameters of the fuel cell stack under the operating conditions before dynamic loading, wherein the state parameters of the fuel cell stack include the temperature, pressure, humidity and flow rate on the cathode side of the fuel cell stack; The water storage calculation module is used to obtain the water storage on the cathode side of the fuel cell stack under the operating conditions before dynamic loading, based on the state parameters of the fuel cell stack. The environmental information acquisition module is used to obtain ambient temperature and humidity. The compensation calculation module is used to obtain the metering ratio compensation amount based on the water storage amount on the cathode side of the fuel cell stack, the ambient temperature and the ambient humidity, and to compensate the original metering ratio target value based on the metering ratio compensation amount to obtain the final metering ratio target value. The final metering ratio target value is used to control the air supply flow of the engine.

[0012] Thirdly, a vehicle is provided, comprising: a metering ratio compensation control system for rapid engine load-bearing as described in the second aspect above.

[0013] Fourthly, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps of the metering ratio compensation control method for rapid engine load-bearing described in the first aspect and any possible implementation of the first aspect.

[0014] According to the embodiments of this application, the state parameters of the fuel cell stack under the operating conditions before dynamic load loading are first obtained, including the temperature, pressure, humidity, and flow rate at the cathode side of the fuel cell stack. Then, based on the state parameters, the water content at the cathode side of the fuel cell stack under the operating conditions before dynamic load loading is obtained. Next, the ambient temperature and humidity are obtained. Based on the water content at the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity, the metering ratio compensation is obtained. Finally, the original metering ratio target value is compensated based on the metering ratio compensation to obtain the final metering ratio target value, which is used to control the air supply flow rate of the engine. Therefore, the water content at the cathode side of the fuel cell stack before load loading can be calculated from the fuel cell stack state parameters, and the metering ratio compensation can be obtained by combining the ambient temperature and humidity, thus achieving metering ratio compensation for rapid engine load loading. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A flowchart of the metering ratio compensation control method for rapid engine load transfer provided in this application embodiment; Figure 2 A schematic diagram of the metering ratio compensation control method for rapid engine load transfer provided in this application embodiment; Figure 3 A logic block diagram of the metering ratio compensation control method for rapid engine load transfer provided in the embodiments of this application; Figure 4A graph showing the relationship between current and hydrogen outlet water volume provided in an embodiment of this application; Figure 5 This is a structural block diagram of the metering ratio compensation control system for rapid engine load application provided in an embodiment of this application; Figure 6 This is a structural block diagram of a computer device provided in an embodiment of this application. Detailed Implementation

[0016] The present application will now be described in further detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the application. Furthermore, it should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings.

[0017] It should be noted that, unless otherwise specified, the embodiments and features of the embodiments in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] The following describes in detail, with reference to the accompanying drawings, a metering ratio compensation control method, system, vehicle, and equipment for rapid engine load loading according to embodiments of this application.

[0019] Figure 1 This is a flowchart of a metering ratio compensation control method for rapid engine load loading according to an embodiment of this application. Figure 1 As shown, the metering ratio compensation control method for rapid engine load transfer according to an embodiment of this application includes the following steps: S101: Obtain the state parameters of the fuel cell stack under the operating conditions before dynamic loading, wherein the state parameters of the fuel cell stack include the temperature, pressure, humidity and flow rate on the cathode side of the fuel cell stack.

[0020] In one embodiment of this application, such as Figure 2 As shown, the temperature, pressure, humidity, and flow rate on the cathode side of the fuel cell stack include the temperature, pressure, humidity, and flow rate at the inlet of the cathode side of the fuel cell stack, and the temperature, pressure, humidity, and flow rate at the outlet of the cathode side of the fuel cell stack.

[0021] S102: Based on the state parameters of the fuel cell stack, obtain the water content on the cathode side of the fuel cell stack under the operating conditions before dynamic loading.

[0022] In one embodiment of this application, obtaining the water content on the cathode side of the fuel cell stack under the operating conditions before dynamic loading based on the stack's state parameters includes: obtaining the water content of the gas entering the stack from the air side; obtaining the water content of the gas exiting the stack from the air side; obtaining the actual water production during stack operation; obtaining the amount of water permeating from the cathode side to the anode side; and obtaining the water content on the cathode side of the fuel cell stack based on the water content of the gas entering the stack from the air side, the water content of the gas exiting the stack from the air side, the actual water production during stack operation, and the amount of water permeating from the cathode side to the anode side.

[0023] The calculation of the water storage on the cathode side of the fuel cell stack is shown in Formula 1: (1) in, This refers to the cumulative water volume on the cathode side under operating conditions before dynamic loading. The water content of the gas fed into the reactor on the air side of the fuel cell stack; The water content of the gas exiting the reactor from the air side of the fuel cell stack; This represents the actual water production during the operation of the fuel cell stack. This refers to the amount of water that permeates from the cathode side of the fuel cell stack to the anode side.

[0024] In one embodiment of this application, obtaining the water content of the fuel cell stack air-side feed gas includes: obtaining the saturated vapor pressure; obtaining the actual partial pressure of water vapor in the air based on the saturated vapor pressure; and obtaining the water content of the fuel cell stack air-side feed gas based on the actual partial pressure of water vapor in the air.

[0025] The calculation process for the water content of the air-side feed gas in the fuel cell stack is shown in Formulas 2 to 5: (2) (3) (4) (5) in, The water content of the gas fed into the reactor on the air side of the fuel cell stack; It is the saturated vapor pressure; This represents the actual partial pressure of water vapor in the air. This refers to the air inlet temperature. Humidity of the air entering the pile; This refers to the air inlet pressure. This refers to the air intake flow rate. t This refers to the runtime.

[0026] Similarly, the calculation process for the water content of the gas exiting the fuel cell stack from the air side is shown in Formula 6: (6) in, The water content of the gas exiting the reactor from the air side of the fuel cell stack; This refers to the air inlet temperature. Humidity of the air entering the pile; This refers to the air inlet pressure. This refers to the air inlet flow rate.

[0027] In one embodiment of this application, obtaining the actual water production during the operation of the fuel cell stack includes: obtaining the charge amount and obtaining the total number of moles of electrons based on the charge amount; obtaining the number of moles of water based on the total number of moles of electrons; and obtaining the actual water production during the operation of the fuel cell stack based on the number of moles of water.

[0028] The calculation process for the actual water production during the operation of the fuel cell stack is shown in Formulas 7 to 10: (7) (8) (9) (10) in, This represents the actual water production during the operation of the fuel cell stack. for ; for ; The number of moles of water; The molar mass of water; is Avogadro's constant.

[0029] The amount of water permeating from the cathode side to the anode side of the fuel cell stack is calculated based on data provided by the fuel cell stack. The relationship between current and hydrogen outlet water volume is as follows: Figure 4 As shown in Formula 11, the amount of water permeating from the cathode side to the anode side of the fuel cell stack is equivalent to... (11) in, This refers to the amount of water that permeates from the cathode side of the fuel cell stack to the anode side.

[0030] Substituting Formulas 5, 6, 10, and 11 into Formula 1, the cumulative water volume on the cathode side under the operating conditions before dynamic loading can be calculated.

[0031] S103: Obtain ambient temperature and ambient humidity.

[0032] S104: The metering ratio compensation amount is obtained based on the amount of water stored on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity.

[0033] In one embodiment of this application, before obtaining the metering ratio compensation amount based on the water content on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity, the method further includes: after obtaining the state parameters of the fuel cell stack under the operating conditions before dynamic loading, determining whether the operating time has reached a predetermined time; if so, determining whether the loading rate is greater than a predetermined rate; if so, performing the step of obtaining the metering ratio compensation amount based on the water content on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity.

[0034] Specifically, such as Figure 3 As shown, if the running time exceeds the predetermined time, the opening time of the drain valve is extended to prevent flooding at the front end; if the load rate is less than the predetermined rate, the calculation of the cumulative water volume on the cathode side under the dynamic load-bearing operating conditions is performed on the previous floor. The predetermined time and the extended opening time of the drain valve are obtained through experimental calibration.

[0035] In one embodiment of this application, obtaining the metering ratio compensation amount based on the water storage amount on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity includes: querying a metering ratio compensation table to obtain the metering ratio compensation amount corresponding to the water storage amount on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity, wherein the metering ratio compensation table is pre-calibrated.

[0036] S105: The original metering ratio target value is compensated according to the metering ratio compensation amount to obtain the final metering ratio target value, wherein the final metering ratio target value is used to control the air supply flow of the engine.

[0037] According to the metering ratio compensation control method for rapid engine load loading according to the embodiments of this application, the state parameters of the fuel cell stack under the operating conditions before dynamic load loading are first obtained, including the temperature, pressure, humidity, and flow rate at the cathode side of the fuel cell stack. Then, based on the state parameters of the fuel cell stack, the water content at the cathode side of the fuel cell stack under the operating conditions before dynamic load loading is obtained. Next, the ambient temperature and ambient humidity are obtained. Based on the water content at the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity, the metering ratio compensation amount is obtained. Finally, the original metering ratio target value is compensated based on the metering ratio compensation amount to obtain the final metering ratio target value, which is used to control the air supply flow rate of the engine. Therefore, the water content at the cathode side of the fuel cell stack before load loading can be calculated from the fuel cell stack state parameters, and the metering ratio compensation amount can be obtained by combining the ambient temperature and humidity, thus achieving metering ratio compensation for rapid engine load loading.

[0038] Figure 5 This is a structural block diagram of a metering ratio compensation control system for rapid engine load loading according to an embodiment of this application. Figure 5As shown, the metering ratio compensation control system for rapid engine load transfer according to an embodiment of this application includes: a parameter acquisition module 510, a water storage calculation module 520, an environmental information acquisition module 530, and a compensation calculation module 540, wherein: The parameter acquisition module 510 is used to obtain the state parameters of the fuel cell stack under the operating conditions before dynamic loading, wherein the state parameters of the fuel cell stack include the temperature, pressure, humidity and flow rate on the cathode side of the fuel cell stack; The water storage calculation module 520 is used to obtain the water storage on the cathode side of the fuel cell stack under the operating conditions before dynamic loading based on the state parameters of the fuel cell stack. The environmental information acquisition module 530 is used to obtain ambient temperature and ambient humidity. The compensation calculation module 540 is used to obtain the metering ratio compensation amount based on the water storage amount on the cathode side of the fuel cell stack, the ambient temperature and the ambient humidity, and to compensate the original metering ratio target value based on the metering ratio compensation amount to obtain the final metering ratio target value, wherein the final metering ratio target value is used to control the air supply flow of the engine.

[0039] According to the metering ratio compensation control system for rapid engine load testing according to an embodiment of this application, the state parameters of the fuel cell stack under the operating conditions before dynamic load testing are first obtained. These state parameters include the temperature, pressure, humidity, and flow rate at the cathode side of the fuel cell stack. Then, based on the state parameters, the water level at the cathode side of the fuel cell stack under the operating conditions before dynamic load testing is obtained. Next, the ambient temperature and humidity are obtained. Based on the water level at the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity, the metering ratio compensation amount is obtained. Finally, the original metering ratio target value is compensated based on the metering ratio compensation amount to obtain the final metering ratio target value, which is used to control the engine's air supply flow rate. Therefore, the water level at the cathode side of the fuel cell stack before load testing can be calculated from the fuel cell stack state parameters, and the metering ratio compensation amount can be obtained by combining the ambient temperature and humidity, thus achieving metering ratio compensation for rapid engine load testing.

[0040] Specific limitations regarding the metering ratio compensation control system for rapid engine load transfer can be found in the above-described limitations of the metering ratio compensation control method for rapid engine load transfer, and will not be repeated here. Each module of the aforementioned metering ratio compensation control system for rapid engine load transfer can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0041] In one embodiment, a vehicle is provided, comprising: a metering ratio compensation control system for rapid engine load loading according to any of the above embodiments. The vehicle first obtains the state parameters of the fuel cell stack under operating conditions before dynamic load loading, wherein the state parameters of the fuel cell stack include the temperature, pressure, humidity, and flow rate at the cathode side of the fuel cell stack; then, based on the state parameters of the fuel cell stack, the water content at the cathode side of the fuel cell stack under operating conditions before dynamic load loading is obtained; next, the ambient temperature and ambient humidity are obtained; based on the water content at the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity, a metering ratio compensation amount is obtained; finally, the original metering ratio target value is compensated based on the metering ratio compensation amount to obtain a final metering ratio target value, wherein the final metering ratio target value is used to control the air supply flow rate of the engine. Thus, the water content at the cathode side of the fuel cell stack before load loading can be calculated from the fuel cell stack state parameters, and the metering ratio compensation amount can be obtained by combining the ambient temperature and humidity, thereby achieving metering ratio compensation for rapid engine load loading.

[0042] Furthermore, other components and functions of the vehicle according to the embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0043] In one embodiment, a computer device is provided. Figure 6 This is a structural block diagram of the computer device provided in the embodiments of this application, with reference to... Figure 6 The computer device includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the aforementioned embodiment of the metering ratio compensation control method for rapid engine load loading. For example, it executes: obtaining the state parameters of the fuel cell stack under the operating conditions before dynamic load loading, wherein the state parameters of the fuel cell stack include the temperature, pressure, humidity, and flow rate on the cathode side of the fuel cell stack; Based on the state parameters of the fuel cell stack, the water content on the cathode side of the fuel cell stack under the operating conditions before dynamic loading is obtained; Obtain ambient temperature and humidity; The metering ratio compensation amount is obtained based on the water content on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity. The original metering ratio target value is compensated based on the metering ratio compensation amount to obtain the final metering ratio target value, wherein the final metering ratio target value is used to control the air supply flow of the engine.

[0044] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A metering ratio compensation control method for rapid engine load loading, characterized in that, include: Obtain the state parameters of the fuel cell stack under the operating conditions before dynamic loading, wherein the state parameters of the fuel cell stack include the temperature, pressure, humidity and flow rate on the cathode side of the fuel cell stack; Based on the state parameters of the fuel cell stack, the water content on the cathode side of the fuel cell stack under the operating conditions before dynamic loading is obtained; Obtain ambient temperature and humidity; The metering ratio compensation amount is obtained based on the water content on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity. The original metering ratio target value is compensated based on the metering ratio compensation amount to obtain the final metering ratio target value, wherein the final metering ratio target value is used to control the air supply flow of the engine.

2. The metering ratio compensation control method for rapid engine load transfer according to claim 1, characterized in that, The temperature, pressure, humidity, and flow rate on the cathode side of the fuel cell stack include the temperature, pressure, humidity, and flow rate at the inlet of the cathode side of the fuel cell stack, and the temperature, pressure, humidity, and flow rate at the outlet of the cathode side of the fuel cell stack.

3. The metering ratio compensation control method for rapid engine load transfer according to claim 1 or 2, characterized in that, The step of obtaining the water content on the cathode side of the fuel cell under the operating conditions before dynamic loading, based on the state parameters of the fuel cell stack, includes: Obtain the water content of the air-side feed gas of the fuel cell stack; Obtain the water content of the gas exiting the fuel cell stack from the air side; Obtain the actual water production during the operation of the fuel cell stack; The amount of water that permeates from the cathode side of the fuel cell stack to the anode side is obtained; The water content on the cathode side of the fuel cell is obtained based on the water content of the gas entering the fuel cell on the air side, the water content of the gas exiting the fuel cell on the air side, the actual water production during fuel cell operation, and the amount of water that permeates from the cathode side to the anode side of the fuel cell.

4. The metering ratio compensation control method for rapid engine load transfer according to claim 3, characterized in that, The method of obtaining the water content of the feed gas on the air side of the fuel cell stack includes: To obtain saturated vapor pressure; The actual partial pressure of water vapor in the air is obtained based on the saturated vapor pressure. The water content of the gas fed into the fuel cell stack on the air side is obtained based on the actual partial pressure of water vapor in the air.

5. The metering ratio compensation control method for rapid engine load transfer according to claim 3, characterized in that, The method of obtaining the actual water production during the operation of the fuel cell stack includes: The charge amount is obtained, and the total number of moles of electrons is determined based on the charge amount; The number of moles of water is obtained based on the total number of moles of electrons. The actual water production during the operation of the fuel cell stack is obtained based on the number of moles of water.

6. The metering ratio compensation control method for rapid engine load transfer according to claim 1, characterized in that, The step of obtaining the metering ratio compensation amount based on the water content on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity includes: By consulting the metering ratio compensation table, the water storage volume, ambient temperature, and ambient humidity corresponding to the cathode side of the fuel cell stack are obtained, and the metering ratio compensation amount is obtained. The metering ratio compensation table is pre-calibrated.

7. The metering ratio compensation control method for rapid engine load transfer according to claim 1, characterized in that, Before obtaining the metering ratio compensation amount based on the water content on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity, the process further includes: After obtaining the state parameters of the fuel cell stack under the operating conditions before dynamic loading, it is determined whether the operating time has reached the predetermined time. If so, determine whether the loading rate is greater than the predetermined rate; If so, then the step of obtaining the metering ratio compensation amount based on the water content on the cathode side of the fuel cell stack, the ambient temperature, and the ambient humidity is performed.

8. A metering ratio compensation control system for rapid engine load loading, characterized in that, include: The parameter acquisition module is used to obtain the state parameters of the fuel cell stack under the operating conditions before dynamic loading, wherein the state parameters of the fuel cell stack include the temperature, pressure, humidity and flow rate on the cathode side of the fuel cell stack; The water storage calculation module is used to obtain the water storage on the cathode side of the fuel cell stack under the operating conditions before dynamic loading, based on the state parameters of the fuel cell stack. The environmental information acquisition module is used to obtain ambient temperature and humidity. The compensation calculation module is used to obtain the metering ratio compensation amount based on the water storage amount on the cathode side of the fuel cell stack, the ambient temperature and the ambient humidity, and to compensate the original metering ratio target value based on the metering ratio compensation amount to obtain the final metering ratio target value. The final metering ratio target value is used to control the air supply flow of the engine.

9. A vehicle, characterized in that, include: The metering ratio compensation control system for rapid engine load transfer as described in claim 8.

10. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the metering ratio compensation control method for rapid engine load transfer as described in any one of claims 1-7.

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