A low-temperature self-start control method, system, device and medium for fuel cells

Abstract

The present invention discloses a fuel cell low-temperature self-start control method, system, device and medium, relating to the technical field of fuel cells; the method includes: when the temperature of the internal coolant is lower than the start target temperature, performing a low-temperature self-start process; the low-temperature self-start process includes: detecting the average voltage of the target fuel cell with a preset current and performing feedback regulation on the preset current; detecting the voltage of the first monomer with the adjusted current and performing feedback regulation on the adjusted current; if the temperature value of the coolant at the outlet is equal to the first set temperature value, adjusting the current density of the preset current and performing self-heating regulation on the coolant for a set duration; judging whether the heating stop condition is satisfied; if so, operating normally; if not, continuing to operate at the adjusted current density for the set duration until the heating stop condition is satisfied; the present invention can reduce energy consumption and cost and simply and efficiently realize the start of the fuel cell stack.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cells, and particularly to a fuel cell low-temperature self-start control method, system, device and medium. Background Art

[0002] A proton exchange membrane fuel cell is an efficient energy conversion device, which has the advantages of high power density, fast dynamic response and no pollution, and is the most promising power source for the next generation of automobiles. During the low-temperature start-up process, the initial water content and the generated water inside the proton exchange membrane fuel cell will freeze inside the stack, block the pores of the membrane electrode, and even damage the structure of the membrane electrode. Therefore, low-temperature start-up is a severe problem faced in commercialization and is also a hot topic in recent research. Currently, the commonly used cold start-up methods include two modes: auxiliary start-up and self-start-up. For auxiliary start-up, it often has better effects, but the structure is relatively more complex than self-start-up, and additional heating components are required, which not only increases energy consumption but also increases costs, and is not conducive to commercial promotion. The research on low-temperature self-start is necessary for commercial applications. Summary of the Invention

[0003] The purpose of the present invention is to provide a fuel cell low-temperature self-start control method, system, device and medium, which can reduce energy consumption and costs and simply and efficiently achieve battery start-up.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] A fuel cell low-temperature self-start control method, the method includes:

[0006] Obtain the temperature of the coolant inside the target fuel cell and the temperature value of the coolant at the outlet;

[0007] Judge whether the temperature of the internal coolant is lower than the start target temperature;

[0008] If not, operate normally; if so, execute the low-temperature self-start process;

[0009] The low-temperature self-start process includes:

[0010] [[ID=ID=34]]Detect the average voltage of the target fuel cell using a preset current, and perform feedback adjustment on the preset current according to the detected average voltage to obtain an adjusted current; detect the adjusted average voltage according to the adjusted current; the amplitude of the adjusted average voltage is not less than the amplitude of the first set voltage value;

[0011] Detect the voltage of the first single cell located at the air inlet end of the target fuel cell using the adjusted current, and perform feedback adjustment on the adjusted current based on the detected voltage of the first single cell to obtain the final current; detect the adjusted voltage of the first single cell according to the final current; the amplitude of the adjusted voltage of the first single cell is equal to the amplitude of the first set voltage value;

[0012] If the temperature value of the coolant at the outlet is equal to the first set temperature value, adjust the current density of the preset current to obtain the adjusted current density;

[0013] Perform self-heating adjustment on the coolant inside the target fuel cell for a set duration with the adjusted current density, and determine the temperature value of the heated coolant at the outlet of the target fuel cell as the self-heating temperature value;

[0014] Judge whether the self-heating temperature value is within the set temperature range; if so, operate normally; if not, perform self-heating adjustment on the coolant inside the target fuel cell again for a set duration with the adjusted current density until the self-heating temperature value is within the set temperature range; the first set temperature value is less than the temperature value within the set temperature range.

[0015] Optionally, the preset current is a step current.

[0016] Optionally, the current density of the preset current is 0.5 A / cm 2 。

[0017] Optionally, the adjusted current density is 0.8 A / cm 2 。

[0018] A fuel cell low-temperature self-start control system, the system includes:

[0019] An acquisition module, configured to acquire the temperature of the coolant inside the target fuel cell and the temperature value of the coolant at the outlet;

[0020] A first judgment module, configured to judge whether the temperature of the internal coolant is lower than the start target temperature;

[0021] A first processing module, configured to operate normally if the temperature of the internal coolant is lower than the start target temperature;

[0022] A second processing module, configured to execute the low-temperature self-start module if the temperature of the internal coolant is not lower than the start target temperature; the low-temperature self-start module includes:

[0023] The first adjustment module is configured to detect the average voltage of the target fuel cell using a preset current, and perform feedback adjustment on the preset current according to the detected average voltage to obtain an adjusted current; detect an adjusted average voltage according to the adjusted current; the amplitude of the adjusted average voltage is not less than the amplitude of a first set voltage value;

[0024] The second adjustment module is configured to detect the voltage of the first cell located at the inlet end of the target fuel cell using the adjusted current, and perform feedback adjustment on the adjusted current according to the detected voltage of the first cell to obtain a final current; detect an adjusted voltage of the first cell according to the final current; the amplitude of the adjusted voltage of the first cell is equal to the amplitude of the first set voltage value;

[0025] The third adjustment module is configured to adjust the current density of the preset current if the temperature value of the coolant at the outlet is equal to a first set temperature value to obtain an adjusted current density;

[0026] The heating adjustment module is configured to perform self-heating adjustment on the coolant inside the target fuel cell for a set duration with the adjusted current density, and determine the temperature value of the heated coolant at the outlet of the target fuel cell as the self-heating temperature value;

[0027] The second judgment module is configured to judge whether the self-heating temperature value is within a set temperature range;

[0028] The third processing module is configured to operate normally if the self-heating temperature value is within the set temperature range;

[0029] The reheating adjustment module is configured to, if the self-heating temperature value is not within the set temperature range, perform self-heating adjustment on the coolant inside the target fuel cell again for a set duration with the adjusted current density until the self-heating temperature value is within the set temperature range; the first set temperature value is less than the temperature value within the set temperature range.

[0030] Optionally, the acquisition module is a temperature sensor.

[0031] An electronic device includes a memory and a processor, the memory is configured to store a computer program, and the processor runs the computer program to enable the electronic device to execute the fuel cell low-temperature self-start control method described in any one of the above.

[0032] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it implements the fuel cell low-temperature self-start control method described in any one of the above.

[0033] According to the specific embodiments provided by the present invention, the following technical effects are disclosed by the present invention:

[0034] The present invention provides a fuel cell low-temperature self-start control method, system, device and medium. It judges whether to enter the cold start control by detecting the temperature of the coolant inside the target fuel cell; then it detects the average voltage of the target fuel cell and the voltage of the first single cell, and through feedback adjustment of the preset current, makes the amplitude of the adjusted average voltage not less than the first set voltage value, and the amplitude of the adjusted voltage of the first single cell equal to the first set voltage value. Then, if the temperature value of the coolant at the outlet is equal to the first set temperature value, it adjusts the current density of the preset current to obtain the adjusted current density and keeps continuously loading, so that the target fuel cell can quickly heat up to reach the required normal start temperature, that is, meet the heating stop condition, shortening the start time. Since the present invention does not require additional heating auxiliary devices and only relies on the heat generated by the target fuel cell itself to achieve the purpose of rapid start, therefore, the present invention improves the energy utilization rate. And because it can start quickly and reduces the damage to the membrane electrode, so the present invention can reduce energy consumption and cost, and simply and efficiently realize the start of the stack. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] Figure 1 It is a flowchart of the fuel cell low-temperature self-start control method provided by the embodiment of the present invention;

[0037] Figure 2 It is a structural diagram of the fuel cell low-temperature self-start control system provided by the embodiment of the present invention;

[0038] Figure 3 It is a flowchart of the fuel cell low-temperature self-start control method in practical application provided by the embodiment of the present invention;

[0039] Figure 4 It is a distribution diagram of the temperature acquisition points of the first single cell provided by the embodiment of the present invention.

[0040] Symbol Explanation:

[0041] Acquisition module - 1, first judgment module - 2, first processing module - 3, second processing module - 4, first adjustment module - 5, second adjustment module - 6, third adjustment module - 7, heating adjustment module - 8, second judgment module - 9, third processing module - 10, reheating adjustment module - 11, low - temperature self - start module - 12. Detailed implementation manners

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] The purpose of the present invention is to provide a fuel cell low - temperature self - start control method, system, device and medium, which can simply and efficiently realize the start of the fuel cell stack.

[0044] To make the above - mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific implementation manners.

[0045] Embodiment 1

[0046] As Figure 1 shown, the embodiment of the present invention provides a fuel cell low - temperature self - start control method, and the method includes:

[0047] Step 100: Obtain the temperature of the coolant inside the target fuel cell and the temperature value of the coolant at the outlet.

[0048] Step 200: Judge whether the temperature of the internal coolant is lower than the start target temperature.

[0049] If not, execute Step 300; Step 300: Normal operation.

[0050] If so, execute Step 400: Low - temperature self - start process.

[0051] Step 400 specifically includes:

[0052] Step 401: Detect the average voltage of the target fuel cell with a preset current, and perform feedback adjustment on the preset current according to the detected average voltage to obtain an adjusted current; detect the adjusted average voltage according to the adjusted current; the amplitude of the adjusted average voltage is not less than the amplitude of the first set voltage value.

[0053] Step 402: Detect the voltage of the first cell at the inlet end of the target fuel cell using the adjusted current, and perform feedback adjustment on the adjusted current based on the detected voltage of the first cell to obtain the final current; detect the adjusted voltage of the first cell according to the final current; the amplitude of the adjusted voltage of the first cell is equal to the amplitude of the first set voltage value.

[0054] Step 403: If the temperature value of the coolant at the outlet is equal to the first set temperature value, adjust the current density of the preset current to obtain the adjusted current density. Specifically, the current density of the preset current is 0.5 A / cm 2 . The adjusted current density is 0.8 A / cm 2 .

[0055] Step 404: Perform self-heating adjustment on the coolant inside the target fuel cell for a set duration at the adjusted current density, and determine the temperature value of the heated coolant at the outlet of the target fuel cell as the self-heating temperature value.

[0056] That is, operate at the adjusted current density, and perform self-heating adjustment on the coolant inside the target fuel cell for a set duration through self-generated heat, so that heating adjustment can be achieved without additional auxiliary heating devices.

[0057] Step 405: Determine whether the self-heating temperature value is within the set temperature range; if so, execute Step 300: normal operation; if not, execute Step 406: perform self-heating adjustment on the coolant inside the target fuel cell again for a set duration at the adjusted current density until the self-heating temperature value is within the set temperature range; the first set temperature value is less than the temperature value within the set temperature range; the set temperature range is that the heating temperature value is not less than the second set temperature value and not greater than the third set temperature value.

[0058] In practical applications, for the fuel cell low-temperature self-start control method provided by the present invention, the specific operation process can also be Figure 3 the process shown. The inside of the target fuel cell includes a large coolant circulation and a small coolant circulation. Figure 3 The specific implementation steps corresponding to the process in

[0059] (1) Obtain the coolant temperature, and determine whether it is lower than the cold start target temperature, that is, determine whether the temperature of the fuel cell stack is less than 0 °C. If so, execute the cold start control method and perform step (2); if not, execute step (11). The fuel cell stack refers to the fuel cell.

[0060] (2) Turn on the water pump, the small coolant circulation, and the air compressor.

[0061] (3) The target fuel cell performs output control according to a preset step current.

[0062] (4) Detect whether the average voltage of the target fuel cell is lower than the first set voltage value, where the first set voltage value is 0.6V. If so, control the output current to return to the previous step's step current magnitude and repeat step (4) until the voltage is higher than 0.6V; if not, proceed to the next step.

[0063] (5) Detect the voltage of the first single cell at the inlet end of the stack (cathode side), and determine whether it is lower than 0.5V. If so, control the output current to return to the previous step's step current magnitude and repeat step (5); if not, proceed to the next step. The stack refers to the fuel cell.

[0064] (6) Detect the voltage of the first single cell at the inlet end of the stack (cathode side), and determine whether it is higher than 0.62V. If so, proceed to the next step; if not, maintain the preset current for control.

[0065] (7) Detect the temperature of the first single cell, and perform a fixed slope load based on the calibration value on the basis of the preset current until the amplitude of the first single cell voltage is equal to the first set voltage value of 0.6V, and repeat steps (4 - 7).

[0066] (8) Repeat the above steps (4 - 8) until the output current density reaches 0.5A / cm 2 , and wait for the stack to warm up.

[0067] (9) Detect that the outlet coolant temperature reaches the first set temperature value of 40°C, and continue to load to 0.8A / cm 2 .

[0068] (10) Detect whether the inlet and outlet coolant temperatures are greater than or equal to the second set temperature value of 75°C. If so, control the thermostat to maintain the stack outlet temperature not greater than the third set temperature value of 80°C, and at the same time heat the large - cycle coolant; if not, repeat step (10).

[0069] (11) Normal operation mode.

[0070] Specifically, in practical applications, assume that the initial temperature of the coolant before startup is - 30°C. At this time, the default ambient temperature is also - 30°C.

[0071] (1) Determine that the coolant temperature is less than the cold - start target temperature and the freezing point temperature, execute the cold - start control method, and execute step (2).

[0072] (2) Turn on the water pump to make the coolant circulate slowly in the small circulation loop, reducing the heat dissipation and avoiding the occurrence of internal hot spots in the stack, that is, inside the target fuel cell. Turn on the air compressor to provide a fixed gas flow rate, and at the same time turn on the back pressure valve to provide a fixed pressure inside the stack.

[0073] (3) The target fuel cell performs output control according to a preset step - type current.

[0074] (4) Detect whether the average voltage of the target fuel cell is lower than 0.6V. If so, control the output current to return to the previous step - type current magnitude, and repeat step (4) until the voltage is higher than 0.6V; if not, proceed to the next step.

[0075] (5) Determine whether the voltage of the first single cell is lower than 0.5V. If so, control the output current to return to the previous step - type current magnitude and repeat step (5); if not, proceed to the next step.

[0076] (6) Detect the voltage of the first single cell at the inlet end of the stack (cathode side), and determine whether it is higher than 0.62V. If so, proceed to the next step; if not, maintain the control with the preset current.

[0077] (7) Detect the temperatures at different positions of the first single cell, take the average value, and based on the calibration value, perform a fixed - slope loading on the basis of the preset current to maintain the voltage of the first single cell near 0.6V for a long time, with the average voltage not lower than 0.6V, so as to achieve the purpose of rapid heating and avoid damage to the membrane electrode caused by too low voltage. Repeat steps (4 - 7). Among them, the distribution of the temperature acquisition points of the first single - cell battery is shown in Figure 4 . <00>

[0078] (8) Repeat the above steps (4 - 8) until the output current density reaches 0.5A / cm 2 , and wait for the stack to warm up;

[0079] (9) When it is detected that the outlet coolant temperature reaches 40°C, continue to load up to 0.8A / cm 2 .

[0080] (10) Detect whether the inlet and outlet coolant temperatures are greater than or equal to 75°C. If so, control the thermostat to maintain the stack outlet temperature not greater than 80°C, and at the same time heat the coolant in the large circulation loop; if not, repeat step (10).

[0081] (11) Switch to the normal operating mode.

[0082] (12) In the above case, the order of steps (4) and (5) can be interchanged.

[0083] Example 2

[0084] AsFigure 2 As shown in Figure 2 , an embodiment of the present invention provides a fuel cell low-temperature self-start control system, which includes: an acquisition module 1, a first judgment module 2, a first processing module 3, and a second processing module 4.

[0085] The acquisition module 1 is used to acquire the temperature of the coolant inside the target fuel cell and the temperature value of the coolant at the outlet.

[0086] The first judgment module 2 is used to judge whether the temperature of the internal coolant is lower than the start target temperature.

[0087] The first processing module 3 is used to operate normally if the temperature of the internal coolant is lower than the start target temperature.

[0088] The second processing module 4 is used to execute the low-temperature self-start module 12 if the temperature of the internal coolant is not lower than the start target temperature.

[0089] The low-temperature self-start module 12 includes: a first adjustment module 5, a second adjustment module 6, a third adjustment module 7, a heating adjustment module 8, a second judgment module 9, a third processing module 10, and a reheating adjustment module 11.

[0090] The first adjustment module 5 is used to detect the average voltage of the target fuel cell with a preset current, and perform feedback adjustment on the preset current according to the detected average voltage to obtain an adjusted current; detect an adjusted average voltage according to the adjusted current; the amplitude of the adjusted average voltage is not less than the amplitude of the first set voltage value.

[0091] The second adjustment module 6 is used to detect the voltage of the first single cell at the inlet end of the target fuel cell with the adjusted current, and perform feedback adjustment on the adjusted current according to the detected voltage of the first single cell to obtain a final current; detect an adjusted first cell voltage according to the final current; the amplitude of the adjusted first cell voltage is equal to the amplitude of the first set voltage value.

[0092] The third adjustment module 7 is used to adjust the current density of the preset current if the temperature value of the coolant at the outlet is equal to the first set temperature value to obtain an adjusted current density.

[0093] The heating adjustment module 8 is used to perform self-heating adjustment on the coolant inside the target fuel cell for a set duration with the adjusted current density, and determine the temperature value of the heated coolant at the outlet of the target fuel cell as the self-heating temperature value.

[0094] The second judgment module 9 is used to judge whether the self-heating temperature value is within the set temperature range.

[0095] The third processing module 10 is configured to operate normally if the self-heating temperature value is within the set temperature range.

[0096] The reheating adjustment module 11 is configured to, if the self-heating temperature value is not within the set temperature range, perform self-heating adjustment on the coolant inside the target fuel cell again for a set duration with the adjusted current density until the self-heating temperature value is within the set temperature range; the first set temperature value is less than the temperature value within the set temperature range; the set temperature range is that the heating temperature value is not less than the second set temperature value and not greater than the third set temperature value.

[0097] Specifically, the acquisition module 1 is a temperature sensor.

[0098] Specifically, the heating adjustment module 8 uses a thermostat to adjust the temperature of the coolant in the target fuel cell.

[0099] Embodiment 3

[0100] An electronic device includes a memory and a processor. The memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to execute the fuel cell low-temperature self-start control method according to any one of Embodiment 1.

[0101] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it implements the fuel cell low-temperature self-start control method according to any one of Embodiment 1.

[0102] The present invention can adopt a start control strategy according to the initial temperature of the coolant. At the same time, according to the difference in the temperature of the first single cell, current is loaded with a variable slope, so that the stack heats up quickly, improving the cold start ability of the fuel cell while reducing energy consumption and damage to the membrane electrode.

[0103] It is judged whether to enter cold start control by detecting the temperature of the coolant; then, by detecting the average voltage of the target fuel cell and the voltage of the first single cell, and through feedback adjustment of the preset current, the amplitude of the adjusted average voltage is not less than the first set voltage value, and the amplitude of the adjusted first single cell voltage is equal to the first set voltage value. Then, the current density is adjusted to obtain the adjusted current density and continuous loading is maintained, so that the target fuel cell can heat up quickly, reach the required start temperature, and shorten the start time. Since the present invention does not require additional heating auxiliary devices and only relies on the heat generated by the target fuel cell itself to achieve the purpose of rapid start, the present invention improves the energy utilization rate. Also, because it can start quickly and reduce the damage to the membrane electrode, the present invention can simply and efficiently achieve battery start.

[0104] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For related parts, reference can be made to the description in the method section.

[0105] Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The descriptions of the above embodiments are only used to help understand the method of the present invention and its core idea. At the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A low-temperature self-start control method for a fuel cell, characterized in that, The method includes: Obtaining the temperature of the coolant inside the target fuel cell and the temperature value of the coolant at the outlet; Judging whether the temperature of the internal coolant is lower than the start target temperature; If not, operate normally; if so, execute the low-temperature self-start process; The low-temperature self-start process includes: Detecting the average voltage of the target fuel cell using a preset current, and performing feedback adjustment on the preset current according to the detected average voltage to obtain an adjusted current; detecting the adjusted average voltage according to the adjusted current; the amplitude of the adjusted average voltage is not less than the amplitude of the first set voltage value; Detecting the voltage of the first cell at the inlet end of the target fuel cell using the adjusted current, and performing feedback adjustment on the adjusted current according to the detected voltage of the first cell to obtain a final current; detecting the adjusted voltage of the first cell according to the final current; the amplitude of the adjusted voltage of the first cell is equal to the amplitude of the first set voltage value; If the temperature value of the coolant at the outlet is equal to the first set temperature value, adjusting the current density of the preset current to obtain an adjusted current density; Performing self-heating adjustment on the coolant inside the target fuel cell for a set duration with the adjusted current density, and determining the temperature value of the heated coolant at the outlet of the target fuel cell as the self-heating temperature value; Judging whether the self-heating temperature value is within the set temperature range; if so, operate normally; if not, perform self-heating adjustment on the coolant inside the target fuel cell again for a set duration with the adjusted current density until the self-heating temperature value is within the set temperature range; the first set temperature value is less than the temperature value within the set temperature range.

2. The fuel cell low-temperature self-start control method according to claim 1, wherein The preset current is a step current.

3. The fuel cell low-temperature self-start control method according to claim 1, wherein The current density of the preset current is 0.5 A / cm 2 .

4. The fuel cell low-temperature self-start control method according to claim 1, wherein The adjusted current density is 0.8 A / cm 2 .

5. A fuel cell low-temperature self-start control system, characterized in that, The system includes: An acquisition module for obtaining the temperature of the coolant inside the target fuel cell and the temperature value of the coolant at the outlet; A first judgment module for judging whether the temperature of the internal coolant is lower than the start target temperature; A first processing module for operating normally if the temperature of the internal coolant is lower than the start target temperature; A second processing module for executing a low-temperature self-start module if the temperature of the internal coolant is not lower than the start target temperature; the low-temperature self-start module includes: A first adjustment module for detecting the average voltage of the target fuel cell using a preset current, and performing feedback adjustment on the preset current according to the detected average voltage to obtain an adjusted current; detecting the adjusted average voltage according to the adjusted current; the amplitude of the adjusted average voltage is not less than the amplitude of the first set voltage value; The second adjustment module is configured to detect the voltage of the first single cell located at the air inlet end of the target fuel cell by using the adjusted current, and perform feedback adjustment on the adjusted current according to the detected voltage of the first single cell to obtain the final current; detect the adjusted voltage of the first single cell according to the final current; the amplitude of the adjusted voltage of the first single cell is equal to the amplitude of the first set voltage value; The third adjustment module is configured to adjust the current density of the preset current to obtain an adjusted current density if the temperature value of the coolant at the outlet is equal to the first set temperature value; The heating adjustment module is configured to perform self-heating adjustment on the coolant inside the target fuel cell for a set duration at the adjusted current density, and determine the temperature value of the heated coolant at the outlet of the target fuel cell as the self-heating temperature value; The second judgment module is configured to judge whether the self-heating temperature value is within the set temperature range; The third processing module is configured to operate normally if the self-heating temperature value is within the set temperature range; The reheating adjustment module is configured to, if the self-heating temperature value is not within the set temperature range, perform self-heating adjustment on the coolant inside the target fuel cell again for a set duration at the adjusted current density until the self-heating temperature value is within the set temperature range; the first set temperature value is less than the temperature value within the set temperature range.

6. The fuel cell low-temperature self-start control system according to claim 5, characterized in that, The acquisition module is a temperature sensor.

7. An electronic device, characterized in that, It includes a memory and a processor, the memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to execute the fuel cell low-temperature self-start control method according to any one of claims 1 to 4.

8. A computer-readable storage medium, characterized in that, It stores a computer program, and when the computer program is executed by the processor, it implements the fuel cell low-temperature self-start control method according to any one of claims 1 to 4.

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