Fuel cell vehicle fan control method and device, electronic equipment and storage medium

Abstract

Embodiments of the present application provide a fuel cell vehicle fan control method and device, electronic equipment and storage medium, relating to the technical field of fuel cell vehicles. The method is applied to a controller, which is in communication connection with a radiator, a fan and multiple temperature sensors. The method comprises: determining the heat production of the stack, and based on each temperature sensor, respectively acquiring the ambient temperature and the radiator outlet temperature. The total heat dissipation requirement is determined according to the heat production of the stack, the ambient temperature and the radiator outlet temperature. The target fan duty cycle is determined based on the total heat dissipation requirement, and the operating state of the fan is controlled according to the target fan duty cycle. The present application can more reasonably dissipate heat from the vehicle through the fan.

Description

Technical Field

[0001] This invention relates to the field of fuel cell vehicle technology, and more specifically, to a fan control method, device, electronic equipment, and storage medium for fuel cell vehicles. Background Technology

[0002] Fans are an important heat dissipation device in fuel cell vehicles. When a car is traveling at high speed, it is crucial to achieve rapid heat dissipation by precisely controlling the fan and combining it with other heat dissipation devices.

[0003] In existing technologies, most heat dissipation strategies for fuel cell vehicles are designed for liquid cooling devices such as radiators, while fan control often only operates at a preset full-speed mode, failing to make better use of the fan's heat dissipation effect. Summary of the Invention

[0004] The present invention aims to, for example, provide a method, apparatus, electronic device, and storage medium for controlling a fan in a fuel cell vehicle, which can at least partially solve the aforementioned technical problems.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, embodiments of the present invention provide a fan control method for a fuel cell vehicle, applied to a controller, wherein the controller is communicatively connected to a radiator, a fan, and multiple temperature sensors; the method includes:

[0007] The heat generated by the fuel cell stack is determined, and the ambient temperature and the radiator outlet temperature are obtained based on each of the temperature sensors.

[0008] The total heat dissipation requirement is determined based on the heat generated by the fuel cell stack, the ambient temperature, and the radiator outlet temperature.

[0009] The target fan duty cycle is determined based on the total heat dissipation demand, and the operating state of the fan is controlled according to the target fan duty cycle.

[0010] Optionally, the method further includes:

[0011] When the vehicle is decelerating, the noise information of the vehicle is acquired in real time;

[0012] Determine whether the noise information is greater than a preset noise information limit;

[0013] If so, the duty cycle of the target fan is reduced according to the target strategy, and the operating state of the fan is controlled according to the reduced duty cycle of the target fan.

[0014] Optionally, the method further includes:

[0015] Obtain the vehicle's speed and determine whether the speed is zero;

[0016] If so, obtain the fuel cell stack outlet water temperature and determine the idle fan control duty cycle based on the fuel cell stack outlet water temperature;

[0017] The idle fan control duty cycle is used as the target fan duty cycle.

[0018] Optionally, determining the total heat dissipation demand based on the heat generated by the fuel cell stack, the ambient temperature, and the radiator outlet temperature includes:

[0019] The first heat dissipation requirement is determined based on the ambient temperature and the heat generated by the fuel cell stack.

[0020] The second heat dissipation requirement is determined based on the radiator outlet temperature threshold and the radiator outlet temperature.

[0021] The total heat dissipation requirement is obtained by combining the first heat dissipation requirement and the second heat dissipation requirement.

[0022] Optionally, the method further includes:

[0023] Determine whether the sum of the first heat dissipation demand and the second heat dissipation demand is greater than the vehicle air conditioning heat dissipation demand;

[0024] If not, then the vehicle air conditioning heat dissipation demand is determined as the total heat dissipation demand.

[0025] Optionally, controlling the operating state of the fan according to the target fan duty cycle includes:

[0026] The target fan duty cycle range in which the target fan duty cycle is located is determined from multiple fan duty cycle ranges;

[0027] The operating state of the fan is controlled based on the control strategy corresponding to the target fan duty cycle range.

[0028] Optionally, the method further includes:

[0029] Determine whether the duty cycle of the target fan is greater than a preset duty cycle threshold;

[0030] If so, a fan cooling failure signal is generated, and the corresponding alarm device is controlled to issue an alarm signal based on the fan cooling failure signal.

[0031] Secondly, embodiments of the present invention provide a fan control device for a fuel cell vehicle, applied to a controller, wherein the controller is communicatively connected to a radiator, a fan, and multiple temperature sensors; the fuel cell vehicle fan control device includes:

[0032] The parameter acquisition unit is used to determine the heat generated by the fuel cell stack and, based on each of the temperature sensors, acquire the ambient temperature and the radiator outlet temperature, respectively.

[0033] The total heat dissipation demand determination unit is used to determine the total heat dissipation demand based on the heat generated by the fuel cell stack, the ambient temperature, and the outlet temperature of the radiator.

[0034] A fan control unit is used to determine the target fan duty cycle based on the total heat dissipation demand, and control the operating state of the fan according to the target fan duty cycle.

[0035] Thirdly, embodiments of the present invention provide an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of any of the methods described above.

[0036] Fourthly, embodiments of the present invention provide a computer-readable storage medium, the computer-readable storage medium including a computer program, wherein the computer program, when executed, controls a server where the computer-readable storage medium is located to implement the steps of any of the methods described above.

[0037] The beneficial effects of the embodiments of the present invention include, for example:

[0038] By acquiring ambient temperature and radiator outlet temperature using temperature sensors, the heat generation of the fuel cell stack is determined. The total heat dissipation demand is then calculated based on the stack's heat generation, ambient temperature, and radiator outlet temperature. This total heat dissipation demand is then used to determine the target fan duty cycle, thereby controlling the fan's operation in real time. This achieves precise control of the fuel cell vehicle's fan, effectively and rationally maximizing its heat dissipation performance. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 A block diagram illustrating an electronic device according to an embodiment of the present invention;

[0041] Figure 2 A flowchart illustrating the steps of a fan control method for a fuel cell vehicle provided in an embodiment of the present invention;

[0042] Figure 3 A flowchart of a fuel cell vehicle fan control method provided in an embodiment of the present invention;

[0043] Figure 4 This is an architectural diagram of a fan control device for a fuel cell vehicle provided in an embodiment of the present invention.

[0044] Icons: 100 - Electronic device; 110 - Memory; 120 - Processor; 130 - Communication module; 300 - Fuel cell vehicle fan control device; 301 - Parameter acquisition unit; 302 - Total heat dissipation demand determination unit; 303 - Fan control unit. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0049] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0050] In high-temperature environments, fuel cell vehicles generate intense heat during operation, especially at high power output, causing the radiator outlet temperature to rise rapidly. To ensure that the stack cooling water outlet temperature remains below the safe threshold of 75°C, the main radiator electric fan will start operating at full speed when the temperature reaches 69°C or above.

[0051] However, when the fuel cell stack cooling water outlet temperature is low, fans may sometimes be needed for heat dissipation, but it is not necessary to run the fans at full speed. In existing technology, fans are often kept running at full speed whenever they are turned on, which obviously wastes fan cooling resources when the fuel cell stack cooling water outlet temperature is low.

[0052] Based on the above, embodiments of the present invention provide a fan control method, device, electronic device, and storage medium for fuel cell vehicles, which can effectively alleviate the above-mentioned technical problems.

[0053] Please refer to Figure 1 This is a block diagram of an electronic device 100 provided in this application. The electronic device 100 can be a data processing device, and this embodiment does not limit this. The electronic device 100 includes a memory 110, a processor 120, and a communication module 130. The memory 110, processor 120, and communication module 130 are electrically connected directly or indirectly to achieve data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses or signal lines.

[0054] The memory 110 is used to store programs or data. The memory 110 may be, but is not limited to, random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), etc.

[0055] The processor 120 is used to read / write data or programs stored in memory and to perform corresponding functions.

[0056] The communication module 130 is used to establish a communication connection between the server and other communication terminals through the network, and to send and receive data through the network.

[0057] It should be understood that, Figure 1 The structure shown is only a schematic diagram of the electronic device 100. The electronic device 100 may also include components that are larger than... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown. Figure 1 The components shown can be implemented using hardware, software, or a combination thereof. This electronic device 100 can be integrated into other devices or configured as a standalone device.

[0058] This invention provides a fan control method for a fuel cell vehicle, applied to a controller, wherein the controller is communicatively connected to a radiator, a fan, and multiple temperature sensors. The method includes, for example: Figure 2 The following steps are shown:

[0059] Step S110: Determine the heat generated by the fuel cell stack, and obtain the ambient temperature and the radiator outlet temperature based on each of the temperature sensors.

[0060] Step S120: Determine the total heat dissipation requirement based on the heat generated by the fuel cell stack, the ambient temperature, and the outlet temperature of the radiator.

[0061] Step S130: Determine the target fan duty cycle based on the total heat dissipation demand, and control the operation state of the fan according to the target fan duty cycle.

[0062] In step S110, the heat generated by the fuel cell stack is determined, and the ambient temperature and the radiator outlet temperature are obtained based on each of the temperature sensors.

[0063] The output power of a fuel cell is the portion of its energy converted from chemical energy to electrical energy, while the heat generated is the heat lost during operation that fails to convert into electrical energy. Therefore, the heat generated by the fuel cell stack can be calculated from the hydrogen consumption of the stack and the output power of the fuel cell. The hydrogen consumption rate and molar mass are calculated to obtain the hydrogen consumption amount. Finally, the heat generated by the fuel cell stack is calculated using the law of conservation of energy.

[0064] Ambient temperature can be obtained using a temperature sensor installed outside the fuel cell, while radiator outlet temperature can be obtained using a temperature sensor installed at the radiator cooling water outlet.

[0065] In step S120, the total heat dissipation requirement is determined based on the heat generated by the fuel cell stack, the ambient temperature, and the outlet temperature of the radiator.

[0066] After obtaining the ambient temperature and the radiator outlet temperature, the heat generation corresponding to the ambient temperature and the radiator outlet temperature can be determined by looking up a table or by temperature conversion. Combining this heat generation with the heat generation of the fuel cell stack yields the total heat dissipation requirement.

[0067] Optionally, determining the total heat dissipation demand based on the heat generated by the fuel cell stack, the ambient temperature, and the radiator outlet temperature includes:

[0068] The first heat dissipation requirement is determined based on the ambient temperature and the heat generated by the fuel cell stack.

[0069] The second heat dissipation requirement is determined based on the radiator outlet temperature threshold and the radiator outlet temperature.

[0070] The total heat dissipation requirement is obtained by combining the first heat dissipation requirement and the second heat dissipation requirement.

[0071] As an optional implementation, the ambient temperature can be collected by a resistive temperature sensor located next to the heat sink. The ambient temperature can be looked up in a preset correspondence table as shown in Table 1 to determine the heat dissipation requirement corresponding to the current ambient temperature. This requirement is then integrated with the heat generated by the fuel cell stack to obtain the first heat dissipation requirement.

[0072] The heat dissipation demand corresponding to the difference between the radiator outlet temperature threshold and the radiator outlet temperature is determined as the second heat dissipation demand. The first heat dissipation demand and the second heat dissipation demand are added together to obtain the total heat dissipation demand.

[0073] Table 1

[0074]

[0075]

[0076] Optionally, the method further includes:

[0077] Determine whether the sum of the first heat dissipation demand and the second heat dissipation demand is greater than the vehicle air conditioning heat dissipation demand. If not, then the vehicle air conditioning heat dissipation demand is determined as the total heat dissipation demand.

[0078] Furthermore, since the vehicle's air conditioning cooling demand is also met by the fan, the priority of fan cooling can be determined among the first cooling demand, the sum of the second cooling demand, and the vehicle's air conditioning cooling demand. If the sum of the first and second cooling demands is greater than the current vehicle air conditioning cooling demand, then the current fuel cell cooling is considered to have a higher priority, and the sum of the first and second cooling demands is determined as the total cooling demand, with the fan controlled to prioritize meeting this cooling demand. Otherwise, the vehicle air conditioning cooling demand is considered to have a higher priority, and the vehicle air conditioning cooling demand is determined as the total cooling demand, with the fan controlled to prioritize its operation.

[0079] In step S130, the target fan duty cycle is determined based on the total heat dissipation demand, and the operating state of the fan is controlled according to the target fan duty cycle.

[0080] Once the total heat dissipation requirement is determined, the corresponding target fan duty cycle can be obtained by looking up the table of the relationship between the total heat dissipation requirement and the target fan duty cycle.

[0081] In this embodiment of the invention, there may be one or more fans. When there is only one fan, the target fan duty cycle is the actual rotational speed of that fan; while when there are multiple fans, the target fan duty cycle is the result of the combined action of multiple fans. That is to say, the rotational speeds of each fan may be the same or different, but the final effect is considered to be the same.

[0082] Optionally, controlling the operating state of the fan according to the target fan duty cycle includes:

[0083] The target fan duty cycle range is determined from multiple fan duty cycle ranges.

[0084] The operating state of the fan is controlled based on the control strategy corresponding to the target fan duty cycle range.

[0085] In one optional implementation, if there are multiple fans, multiple fan duty cycle intervals can be set, arranged in ascending order, and each fan duty cycle interval corresponds to a control strategy. After obtaining the target fan duty cycle, the target fan duty cycle interval is determined from the multiple fan duty cycle intervals, and the control strategy corresponding to the target fan duty cycle interval is used to control the operating state (i.e., speed) of each fan.

[0086] For example, multiple fan duty cycle ranges are 0%–15%, 15%–30%, 30%–50%, 50%–70%, 70%–90%, and 90%–100%. If the fan duty cycle is 20%, then 15%–30% is determined as the target fan duty cycle range. The control strategy corresponding to this target fan duty cycle range is to control the main fan to run at 40% of its maximum speed, and the other fans to run at 15% of their maximum speed, thus controlling each fan at the corresponding speed.

[0087] Optionally, the method further includes:

[0088] When the vehicle is decelerating, the noise information of the vehicle is acquired in real time. It is then determined whether the noise information exceeds a preset noise information limit.

[0089] If so, the duty cycle of the target fan is reduced according to the target strategy, and the operating state of the fan is controlled according to the reduced duty cycle of the target fan.

[0090] During vehicle deceleration, as background noise such as engine noise decreases, the main radiator fan noise becomes the primary noise source. To reduce vehicle noise, noise information (such as the decibel level inside the vehicle) can be acquired while the vehicle is decelerating. It is then determined whether the current noise level exceeds a preset noise limit. If the noise level exceeds the preset limit, to provide a better driving and riding experience for users, the target fan duty cycle can be lowered according to the target strategy, and the fan's operating status can be controlled based on the lowered target fan duty cycle.

[0091] For example, when a vehicle decelerates, the total cooling demand decreases, so the target fan duty cycle tends to decrease. However, if the noise level is greater than the preset noise limit, the rate of decrease of the target fan duty cycle can be further increased according to the set acceleration, thereby achieving the effect of quickly reducing in-vehicle noise.

[0092] Optionally, the method further includes: obtaining the vehicle speed and determining whether the vehicle speed is zero.

[0093] If so, obtain the fuel cell stack outlet water temperature and determine the idle fan control duty cycle based on the fuel cell stack outlet water temperature. Use the idle fan control duty cycle as the target fan duty cycle.

[0094] As an optional implementation, the vehicle speed can be acquired in real time. When the speed is 0 km / h, it indicates that the vehicle is idle. The fuel cell stack outlet water temperature is acquired, and the corresponding idle fan control duty cycle is obtained by looking up a table based on the fuel cell stack outlet water temperature. This duty cycle is then used as the target fan duty cycle to control the fan operation.

[0095] Optionally, the method further includes: determining whether the duty cycle of the target fan is greater than a preset duty cycle threshold.

[0096] If so, a fan cooling failure signal is generated, and the corresponding alarm device is controlled to issue an alarm signal based on the fan cooling failure signal.

[0097] If the controller calculates that the target fan duty cycle is greater than the preset duty cycle threshold, it considers the current total cooling demand to be greater than the cooling effect produced by the fan's maximum speed, meaning the fan cannot meet the current cooling requirements. In this case, a fan cooling fault signal is generated. Based on this signal, the corresponding alarm device (such as a fault indicator light on the dashboard, an alarm voice prompt, etc.) is activated to alert the user to the fault.

[0098] To better illustrate the embodiments of the present invention, this specification also provides the following: Figure 3 The flowchart shown illustrates the solution of this embodiment of the invention.

[0099] Please see Figure 3 First, the initial heat dissipation requirement is determined based on the heat generated by the fuel cell stack and the ambient temperature. Then, the second heat dissipation requirement is determined based on the difference between the radiator outlet temperature and the radiator outlet temperature threshold. Finally, the first and second heat dissipation requirements are combined, and the sum of these two requirements is compared with the vehicle's air conditioning heat dissipation requirement. The larger of these two requirements is taken as the total heat dissipation requirement.

[0100] When the vehicle is not decelerating or stopped, the target fan duty cycle is determined based on the total heat dissipation demand, and the fan speed is then controlled to achieve the desired cooling effect. When the vehicle is decelerating, the rate of decrease of the target fan duty cycle is adjusted based on vehicle noise information, thereby reducing the fan speed more quickly and thus decreasing vehicle noise. When the vehicle is stopped (i.e., at 0 speed), the fuel cell outlet water temperature is acquired, and the idle fan control duty cycle is obtained by looking up a table based on the fuel cell outlet water temperature. This idle fan duty cycle is then used as the target fan duty cycle to control the fan speed.

[0101] Based on the same inventive concept, such as Figure 4 As shown in the figure, an embodiment of the present invention provides a fan control device 300 for a fuel cell vehicle, which is applied to a controller. The controller is communicatively connected to a radiator, a fan, and multiple temperature sensors. The fuel cell vehicle fan control device 300 includes:

[0102] The parameter acquisition unit 301 is used to determine the heat generated by the fuel cell stack and to acquire the ambient temperature and the radiator outlet temperature based on each of the temperature sensors.

[0103] The total heat dissipation demand determination unit 302 is used to determine the total heat dissipation demand based on the heat generated by the fuel cell stack, the ambient temperature, and the outlet temperature of the radiator.

[0104] The fan control unit 303 is used to determine the target fan duty cycle based on the total heat dissipation demand, and control the operation state of the fan according to the target fan duty cycle.

[0105] Regarding the aforementioned fuel cell vehicle fan control device 300, the specific functions of each unit have been described in detail in the embodiments of the fuel cell vehicle fan control method provided in this specification, and will not be elaborated upon here.

[0106] Based on the same inventive concept, embodiments of this invention provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the methods in the aforementioned fuel cell vehicle fan control method.

[0107] The present invention has at least the following beneficial effects:

[0108] 1. By acquiring ambient temperature and radiator outlet temperature through temperature sensors, the heat generation of the fuel cell stack is determined. The total heat dissipation demand is then calculated based on the heat generation, ambient temperature, and radiator outlet temperature. This total heat dissipation demand is then used to determine the target fan duty cycle and control the fan's operation in real time. This achieves precise control of the fuel cell vehicle's fan, effectively and rationally maximizing its heat dissipation performance.

[0109] 2. By adjusting the fan duty cycle when the vehicle slows down and stops, the noise level inside the vehicle is reduced, thus providing users with a better driving experience.

[0110] In the several embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of the invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0111] In addition, the functional modules in the various embodiments of the present invention can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0112] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0113] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A fan control method for a fuel cell vehicle, characterized in that, The method is applied to a controller that is communicatively connected to a heat sink, a fan, and multiple temperature sensors; the method includes: The heat generated by the fuel cell stack is determined, and the ambient temperature and the radiator outlet temperature are obtained based on each of the temperature sensors. Determining the total heat dissipation requirement based on the heat generated by the fuel cell stack, the ambient temperature, and the radiator outlet temperature includes: determining a first heat dissipation requirement based on the ambient temperature and the heat generated by the fuel cell stack; determining a second heat dissipation requirement based on a radiator outlet temperature threshold and the radiator outlet temperature; combining the first heat dissipation requirement and the second heat dissipation requirement to obtain the total heat dissipation requirement; determining whether the sum of the first heat dissipation requirement and the second heat dissipation requirement is greater than the vehicle air conditioning heat dissipation requirement; if not, then determining the vehicle air conditioning heat dissipation requirement as the total heat dissipation requirement. The process includes determining the target fan duty cycle based on the total heat dissipation demand, and controlling the fan's operating state based on the target fan duty cycle, including: determining the target fan duty cycle interval from multiple fan duty cycle intervals; and controlling the fan's operating state based on the control strategy corresponding to the target fan duty cycle interval. When the vehicle is decelerating, the noise information of the vehicle is acquired in real time; it is determined whether the noise information is greater than the preset noise information limit; if so, the duty cycle of the target fan is reduced according to the target strategy, and the operating state of the fan is controlled according to the reduced target fan duty cycle. The vehicle speed is obtained, and it is determined whether the vehicle speed is zero; if so, the fuel cell outlet water temperature is obtained, and the idle fan control duty cycle is determined based on the fuel cell outlet water temperature; the idle fan control duty cycle is used as the target fan duty cycle.

2. The fuel cell vehicle fan control method as described in claim 1, characterized in that, The method further includes: Determine whether the duty cycle of the target fan is greater than a preset duty cycle threshold; If so, a fan cooling failure signal is generated, and the corresponding alarm device is controlled to issue an alarm signal based on the fan cooling failure signal.

3. A fan control device for a fuel cell vehicle, characterized in that, The controller is applied to a controller for executing the fuel cell vehicle fan control method according to any one of claims 1 to 2, the controller being communicatively connected to a radiator, a fan, and multiple temperature sensors; the fuel cell vehicle fan control device includes: The parameter acquisition unit is used to determine the heat generated by the fuel cell stack and, based on each of the temperature sensors, acquire the ambient temperature and the radiator outlet temperature, respectively. The total heat dissipation demand determination unit is used to determine the total heat dissipation demand based on the heat generated by the fuel cell stack, the ambient temperature, and the outlet temperature of the radiator. A fan control unit is used to determine the target fan duty cycle based on the total heat dissipation demand, and control the operating state of the fan according to the target fan duty cycle.

4. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the steps of the method according to any one of claims 1 to 2.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a computer program, which, when executed, controls the server where the computer-readable storage medium is located to implement the steps of the method according to any one of claims 1 to 2.

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