Fuel cell integrated controller and heat dissipation control method thereof

Abstract

The application relates to a fuel cell integrated controller and a heat dissipation control method thereof, a direct-current boost converter, an air compressor controller, a hydrogen pump controller and a high-pressure water pump controller are arranged in a box body of the integrated controller, a main input of the direct-current boost converter is directly connected with an output of a stack by using a copper bar, and a main output of the direct-current boost converter is connected with a high-pressure system of a whole vehicle through a high-voltage wire harness; the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller are directly connected in parallel on the main output of the direct-current boost converter through copper bars; a cooling inlet is arranged at the top center of the box body of the fuel cell integrated controller and is used for the entry of a cooling medium; a plurality of air permeation valves are arranged at the bottom of the box body and are uniformly distributed at the bottom of the box body and are used for the discharge of the cooling medium. The fuel cell integrated controller is safe and reliable, the structure is clear, and the air compressor energy waste is reduced while the heat dissipation efficiency is ensured by controlling the heat dissipation method.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fuel cell technology, in particular to a fuel cell integrated controller and a heat dissipation control method thereof. BACKGROUND

[0002] At present, the fuel cell system controller, the fuel cell high-pressure water pump controller, the fuel cell high-pressure hydrogen circulation pump controller, the fuel cell air compressor controller and the fuel cell DC boost converter are all separate controllers, each having a main control chip. When arranged, a decentralized arrangement is usually adopted, which requires a larger arrangement space and causes high and low voltage wiring harnesses to run back and forth on the vehicle, resulting in a messy arrangement. Not only does this increase the weight and cost of the fuel cell system, but it also reduces the power volume density of the fuel cell system. Since the multiple electrical components of the fuel cell system are independent and decentralized from each other, the electrical architecture is relatively complex, which is not conducive to the integrated arrangement and commercialization of the fuel cell system. On the other hand, the functional safety of the current fuel cell vehicle is not good. In the event of a major traffic accident, the high-voltage wiring harness connection between the fuel cell system and the vehicle power battery is disconnected.

[0003] At the same time, multiple controllers need to be cooled, and the independent cooling pipeline system of each controller is difficult to arrange and has low reliability. For an integrated controller, the water-cooled cooling mode is used in the prior art, which requires high waterproof and corrosion resistance of the controller housing, increasing the manufacturing cost.

[0004] Therefore, there is an urgent need to design a fuel cell integrated controller and a heat dissipation control method thereof to solve the above problems in the prior art. SUMMARY

[0005] Therefore, the present application provides a fuel cell integrated controller and a heat dissipation control method thereof, which aims to provide a safe and reliable fuel cell integrated controller with a clear structure, and optimizes the controller cooling method to reduce air compressor energy waste while ensuring cooling efficiency.

[0006] To achieve the above purpose, the present application adopts the following technical solutions:

[0007] A fuel cell integrated controller, comprising: a box body, a DC boost converter, an air compressor controller, a hydrogen pump controller and a high-pressure water pump controller, the DC boost converter, the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller are arranged in the box body, and the main input interface of the DC boost converter and the main input interface are arranged on the box body;

[0008] The main input of the DC boost converter is directly connected with the output of the stack by using copper bars, and the main output of the DC boost converter is connected with the high-voltage system of the whole vehicle through a high-voltage wire harness; the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller are all directly connected in parallel on the main output of the DC boost converter by using copper bars;

[0009] The top center of the box of the fuel cell integrated controller is provided with a cooling inlet for the entry of cooling medium; and the bottom of the box is provided with a plurality of air vents which are uniformly distributed on the bottom of the box and used for the discharge of the cooling medium.

[0010] Further, the fuel cell integrated controller further comprises a data acquisition module, an internal communication module and a public storage unit, the data acquisition module is used for acquiring the voltage and current signals of the input and output of the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller; the internal communication module is used for the communication of instruction receiving and state feedback of the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller; the public storage unit is used for running the control logic and / or algorithm of each controller in the fuel cell system; and the public storage unit is also used for data saving.

[0011] Further, the output of the air compressor controller is connected with the air compressor of the fuel cell to control the operation of the air compressor; the output of the hydrogen pump controller is connected with the hydrogen pump of the fuel cell to control the operation of the hydrogen pump; and the output of the high-pressure water pump controller is connected with the high-pressure water pump of the fuel cell to control the operation of the high-pressure water pump.

[0012] Further, the fuel cell integrated controller further comprises a parallel bus, which is used for interaction with the data acquisition module, interaction with the DC boost converter, the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller, and interaction with the internal communication module.

[0013] Further, the fuel cell integrated controller further comprises a filter network, a power drive circuit and a sensor, the filter network is used for filtering out the ripple in the rectified output voltage, processing signal suppression and preventing interference, the power drive circuit is used for controlling the operation of driving the air compressor, the hydrogen pump and the water pump, and the sensor is used for detecting the current and voltage of the circuit.

[0014] Further, the fuel cell integrated controller further comprises a common low-voltage power supply, a high-voltage copper bar and a communication interface, the common low-voltage power supply is used for providing working power supply for the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller; the high-voltage copper bar is used for connecting the output of the stack and simultaneously connecting the high-voltage input power supply of the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller; and the communication interface is arranged on the box and used for interaction with the external communication module.

[0015] The application also provides a heat dissipation control method based on the fuel cell integrated controller.

[0016] Part of the gas of the oxygen supply subsystem enters the cooling inlet in the center of the top of the integrated controller box to cool the controller, the continuous input of the cooling gas realizes the heat dissipation and cooling of the inside of the integrated controller box, and the gas is discharged from the air permeable valve at the bottom of the box.

[0017] The air mass flow entering the cooling inlet of the integrated controller is controlled to control the heat dissipation of the system.

[0018] Further, the fuel cell oxygen supply subsystem comprises an air filter, an air compressor, an intercooler, and a cathode tail exhaust valve, the air filter is connected to the inlet of the air compressor, the outlet of the air compressor is provided with a T-shaped pipeline, one branch of the T-shaped pipeline is connected to the intercooler, the intercooler is connected to the cathode inlet of the stack, and the cathode outlet of the stack is connected to the cathode tail exhaust valve; the other branch of the T-shaped pipeline is connected to a flow control valve, the flow control valve is connected to the inlet of a vortex tube, the hot end outlet of the vortex tube is connected to a gas discharge pipeline, and the cold end outlet of the vortex tube is connected to the cooling inlet of the integrated controller.

[0019] Further, the high-pressure air obtained after the air compressor enters the vortex tube under the control of the flow control valve, is separated into low-temperature air and high-temperature air, and the separated low-temperature air is used to cool the integrated controller.

[0020] The flow control valve is used to control the air mass flow m of the inlet of the vortex tube, and the air mass flow m of the inlet of the vortex tube is calculated according to the following formula:

[0021] m=m_co / μ (1);

[0022] In the formula, m_co is the air mass flow of the cold end outlet of the vortex tube, and μ is the cold flow rate of the vortex tube.

[0023] Further, the calculation method of the air mass flow m_co of the cold end outlet of the vortex tube is as follows:

[0024] Q_was=m_co*(h_co-h) (2);

[0025] In the formula, Q_was is the heat required to be taken away by the controller heat dissipation system per unit time; h_co is the air enthalpy at the cold end outlet of the vortex tube, which is obtained by looking up the table according to the temperature T_co at the cold end outlet of the vortex tube; and h is the air enthalpy at the inlet of the vortex tube, which is obtained by looking up the table according to the temperature T at the inlet of the vortex tube, wherein T is a function related to the stack current I, the function relationship formula is obtained by testing, and is regarded as a known quantity.

[0026] The calculation method of the heat Q_was required by the controller heat dissipation system to take away per unit time is as follows:

[0027] Q_was=Q_ther (3);

[0028] In the formula, Q_ther is a function related to the stack current I, and the function relationship is obtained through testing and is regarded as a known quantity;

[0029] The calculation method of the temperature T_co at the cold end outlet of the vortex tube is as follows:

[0030] T_co=T_out-Q_was / m_co*C (4);

[0031] In the formula, T_out is the temperature of the controller cooling outlet, and C is the specific heat capacity of air;

[0032] The calculation method of the temperature T_out of the controller cooling outlet is as follows:

[0033] T_out=T_cont (5);

[0034] In the formula, T_cont is the temperature of the controller, wherein T_cont is a function related to the stack current I, and the function relationship is obtained through testing and is regarded as a known quantity;

[0035] The air mass flow m_co of the cold end outlet of the vortex tube is solved by simultaneously solving the formulas (2), (3), (4), and (5).

[0036] Compared with the prior art, the beneficial effects of the present application are:

[0037] (1) By designing an integrated controller, not only can the fuel cell system structure be more compact, but also the electrical architecture is simplified, and the use of high-voltage wiring harness is reduced;By setting a cooling inlet in the center of the top of the integrated controller box and uniformly setting a plurality of air valves at the bottom of the box, gas cooling is used, and there is no need for complex water cooling pipe design;Through top air inlet and bottom air outlet, the gas can be fully retained in the controller, and the heat dissipation efficiency is improved.

[0038] (2) The high-pressure air flow of the air compressor is separated by the vortex tube, and the vortex tube is used for refrigeration, and the structure is simple, and there is no need to increase too many pipelines and other parts;The low-temperature air separated by the vortex tube is used to cool the integrated controller, and the air mass flow at the inlet of the vortex tube is controlled by the flow control valve, so as to control the air mass flow entering the integrated controller;The air mass flow required by the controller for heat dissipation is accurately calculated, the heat dissipation efficiency is ensured, and the energy waste of the air compressor is reduced.

[0039] Other features and advantages of the present application will be set forth in the descriptions that follow, and in part will be apparent from the description, or can be learned by practice of the application. The purposes and other advantages of the present application will be realized and attained by the structures particularly pointed out in the written description and claims hereof. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and the one skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0041] Figure 1 The schematic diagram of the fuel cell integrated controller according to the embodiment of the present application is shown;

[0042] Figure 2 The schematic diagram of the connection structure between the fuel cell oxygen supply subsystem and the integrated controller according to the embodiment of the present application is shown.

[0043] In the figure: 1, air filter; 2, air compressor; 3, intercooler; 4, electric pile; 5, cathode tail exhaust valve; 6, flow control valve; 7, vortex tube; 8, integrated controller. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the one skilled in the art without any creative effort are within the protection scope of the present application.

[0045] The present application provides a fuel cell integrated controller, as shown in the accompanying drawings Figure 1 The fuel cell integrated controller comprises a box body, a direct current boost converter, an air compressor controller, a hydrogen pump controller and a high-pressure water pump controller. The direct current boost converter, the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller are arranged in the box body. The main input interface of the direct current boost converter and the main input interface are arranged on the box body.

[0046] The main input of the direct current boost converter is directly connected with the output of the electric pile by using a copper bar. The main output of the direct current boost converter is connected with the high-voltage system of the whole vehicle through a high-voltage wire harness. The air compressor controller, the hydrogen pump controller and the high-pressure water pump controller are directly connected in parallel on the main output of the direct current boost converter by using copper bars.

[0047] The top center of the box of the fuel cell integrated controller is provided with a cooling inlet for the entry of cooling medium; and the bottom of the box is provided with a plurality of air vents which are evenly distributed on the bottom of the box and used for the discharge of the cooling medium.

[0048] The fuel cell integrated controller further comprises a data acquisition module, an internal communication module and a common storage unit, the data acquisition module is used for acquiring the voltage and current signals of the input and output of the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller; the internal communication module is used for the communication of instruction receiving and state feedback of the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller; the common storage unit is used for running the control logic and / or algorithm of each controller in the fuel cell system; and the common storage unit is further used for data saving.

[0049] The output of the air compressor controller is connected with the air compressor of the fuel cell to control the operation of the air compressor; the output of the hydrogen pump controller is connected with the hydrogen pump of the fuel cell to control the operation of the hydrogen pump; and the output of the high-pressure water pump controller is connected with the high-pressure water pump of the fuel cell to control the operation of the high-pressure water pump.

[0050] The fuel cell integrated controller further comprises a parallel bus, which is used for interaction with the data acquisition module, interaction with the DC boost converter, the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller, and interaction with the internal communication module.

[0051] The fuel cell integrated controller further comprises a filter network, a power driving circuit and a sensor, the filter network is used for filtering out the ripple in the rectified output voltage, processing signal suppression and preventing interference, the power driving circuit is used for controlling the operation of driving the air compressor, the hydrogen pump and the water pump, and the sensor is used for detecting the current and voltage of the circuit to realize precise control.

[0052] The fuel cell integrated controller further comprises a common low-voltage power supply, a high-voltage copper bar and a communication interface, the common low-voltage power supply is used for providing working power supply for the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller, the high-voltage copper bar is used for connecting the output of the stack and simultaneously connecting the high-voltage input power supply of the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller, and the communication interface is arranged on the box and used for interaction with the external communication module.

[0053] The embodiment of the application further provides a heat dissipation control method based on the fuel cell integrated controller, and the integrated controller uses the gas provided by the fuel cell oxygen supply subsystem for heat dissipation.

[0054] Part of the gas of the oxygen supply subsystem enters the cooling inlet in the center of the top of the integrated controller box, and the controller is cooled. The continuous input of cooling gas realizes the cooling of the internal heat dissipation of the integrated controller box, and is discharged from the air valve at the bottom of the box.

[0055] The air mass flow entering the cooling inlet of the integrated controller is controlled, and the system is cooled.

[0056] As shown in Figure 2 The fuel cell oxygen supply subsystem comprises an air filter 1, an air compressor 2, an intercooler 3, and a cathode tail exhaust valve 5. The air filter 1 is connected to the inlet of the air compressor 2. The outlet of the air compressor 2 is provided with a T-shaped pipeline. One branch of the T-shaped pipeline is connected to the intercooler 3. The intercooler 3 is connected to the cathode inlet of the stack 4. The cathode outlet of the stack 4 is connected to the cathode tail exhaust valve 5. The other branch of the T-shaped pipeline is connected to the flow control valve 6. The flow control valve 6 is connected to the inlet of the vortex tube 7. The hot end outlet of the vortex tube 7 is connected to the gas discharge pipeline. The cold end outlet of the vortex tube 7 is connected to the cooling inlet of the integrated controller 8.

[0057] The high-pressure air obtained after the air compressor 2 is controlled by the flow control valve 6. Part of the air enters the vortex tube 7 and is separated into low-temperature air and high-temperature air. The separated low-temperature air is used to cool the integrated controller 8.

[0058] The flow control valve is used to control the air mass flow m of the vortex tube inlet. The air mass flow m of the vortex tube inlet is calculated according to the following formula:

[0059] m=m_co / μ (1);

[0060] In the formula, m_co is the air mass flow of the cold end outlet of the vortex tube, and μ is the cold flow rate of the vortex tube.

[0061] The cold flow rate μ of the vortex tube is one of the performance indicators of the vortex tube, which is mainly determined by the structure of the vortex tube. Different vortex tubes with different structures have different cold flow rates. The cold flow rate μ of the vortex tube can be obtained by referring to the instruction manual of the vortex tube, which is a known quantity.

[0062] The calculation method of the air mass flow m_co of the cold end outlet of the vortex tube is as follows:

[0063] Q_was=m_co*(h_co-h) (2);

[0064] Wherein, Q_was is the heat required to be taken away by the controller cooling system in unit time; h_co is the air enthalpy at the cold end outlet of the vortex tube, which is obtained by looking up the table according to the temperature T_co at the cold end outlet of the vortex tube; h is the air enthalpy at the inlet of the vortex tube, which is obtained by looking up the table according to the temperature T at the inlet of the vortex tube, wherein T is a function related to the stack current I, and the function relationship is obtained by testing and is regarded as a known quantity.

[0065] The calculation method of the heat required to be taken away by the controller cooling system in unit time Q_was is as follows:

[0066] Q_was = Q_ther (3) ;

[0067] Wherein, Q_ther is a function related to the stack current I, and the function relationship is obtained by testing and is regarded as a known quantity.

[0068] The calculation method of the temperature T_co at the cold end outlet of the vortex tube is as follows:

[0069] T_co = T_out - Q_was / m_co*C (4) ;

[0070] Wherein, T_out is the temperature of the controller cooling outlet, and C is the specific heat capacity of air.

[0071] The calculation method of the temperature T_out of the controller cooling outlet is as follows:

[0072] T_out = T_cont (5) ;

[0073] Wherein, T_cont is the temperature of the controller, wherein T_cont is a function related to the stack current I, and the function relationship is obtained by testing and is regarded as a known quantity.

[0074] The air mass flow rate m_co at the cold end outlet of the vortex tube is solved by simultaneously solving the formulas (2), (3), (4), (5).

[0075] By designing the integrated controller, the structure of the fuel cell system can be more compact, the electrical architecture is simplified, and the use of high-voltage wiring harness is reduced; by setting the cooling inlet in the center of the top of the box of the integrated controller and uniformly setting a plurality of air valves at the bottom of the box, the gas cooling is used, without complex water cooling cooling pipeline design, by the top air inlet and the bottom air outlet, the gas can be fully stayed in the controller, and the heat dissipation efficiency is improved.

[0076] The high pressure air flow of the air compressor is separated by the vortex tube, and the vortex tube refrigeration is simple in structure and does not need to increase too many pipelines and other components. The low temperature air separated by the vortex tube is used for heat dissipation of the integrated controller, and the air mass flow at the inlet of the vortex tube is controlled by the flow control valve, so as to control the air mass flow into the integrated controller. The air mass flow required for heat dissipation of the controller is accurately calculated, so that the heat dissipation efficiency is ensured and the energy waste of the air compressor is reduced.

[0077] Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones. Such modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat dissipation control method for a fuel cell integrated controller, characterized by, The fuel cell integrated controller comprises a box, a direct current booster, an air compressor controller, a hydrogen pump controller and a high-pressure water pump controller, wherein the direct current booster, the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller are arranged in the box, and the main input interface of the direct current booster and the main input interface are arranged on the box; The main input of the direct current booster is directly connected with the output of the stack by using a copper bar, and the main output of the direct current booster is connected with the high-pressure system of the whole vehicle through a high-voltage wire harness; the air compressor controller, the hydrogen pump controller and the high-pressure water pump controller are directly connected in parallel on the main output of the direct current booster by using copper bars; The top center of the box of the fuel cell integrated controller is provided with a cooling inlet for the cooling medium to enter; and the bottom of the box is provided with a plurality of air vents which are uniformly distributed on the bottom of the box and used for discharging the cooling medium; The integrated controller uses the gas provided by the fuel cell oxygen supply subsystem for heat dissipation; Part of the gas of the oxygen supply subsystem enters through the cooling inlet at the top center of the box of the integrated controller to dissipate heat of the controller, the continuous input of the cooling gas realizes heat dissipation and cooling of the inside of the box of the integrated controller, and the cooling gas is discharged from the air vents at the bottom of the box; The fuel cell oxygen supply subsystem comprises an air filter, an air compressor, a middle cooler, a cathode tail exhaust valve, the air filter is connected with the inlet of the air compressor, the outlet of the air compressor is provided with a T-shaped pipeline, one branch of the T-shaped pipeline is connected with the middle cooler, the middle cooler is connected with the cathode inlet of the stack, the cathode outlet of the stack is connected with the cathode tail exhaust valve, the other branch of the T-shaped pipeline is connected with a flow control valve, the flow control valve is connected with the inlet of a vortex tube, the hot end outlet of the vortex tube is connected with a gas discharge pipeline, and the cold end outlet of the vortex tube is connected with the cooling inlet of the integrated controller; The air mass flow entering the cooling inlet of the integrated controller is controlled to control the heat dissipation of the system.

2. The heat radiation control method according to claim 1, wherein The high-pressure air obtained after the air compressor enters the vortex tube under the control of the flow control valve, and part of the high-pressure air is separated into low-temperature air and high-temperature air, and the separated low-temperature air is used for cooling the integrated controller; The flow control valve is used for controlling the air mass flow m of the inlet of the vortex tube, and the air mass flow m of the inlet of the vortex tube is calculated according to the following formula: m=m_co / μ (1); In the formula, m_co is the air mass flow of the cold end outlet of the vortex tube, and μ is the cold flow rate of the vortex tube.

3. The heat radiation control method according to claim 2, wherein The calculation method of the air mass flow m_co of the cold end outlet of the vortex tube is as follows: Q_was=m_co*(h_co-h) (2); In the formula, Q_was is the heat required to be taken away by the heat dissipation system of the controller per unit time; h_co is the air enthalpy at the cold end outlet of the vortex tube, which is obtained by looking up the table according to the temperature T_co at the cold end outlet of the vortex tube; and h is the air enthalpy at the inlet of the vortex tube, which is obtained by looking up the table according to the temperature T at the inlet of the vortex tube, wherein T is a function related to the current I of the stack, and the functional relationship is obtained by testing and is regarded as a known quantity; The calculation method of the heat Q_was required to be taken away by the heat dissipation system of the controller per unit time is as follows: Q_was=Q_ther (3); In the formula, Q_ther is a function related to the stack current I, and the function formula is obtained by testing and is regarded as a known quantity; The calculation method of the temperature T_co at the cold end outlet of the vortex tube is as follows: T_co=T_out-Q_was / m_co*C (4); In the formula, T_out is the temperature of the controller cooling outlet, and C is the specific heat capacity of air; The calculation method of the temperature T_out of the controller cooling outlet is as follows: T_out=T_cont (5); In the formula, T_cont is the temperature of the controller, wherein T_cont is a function related to the stack current I, and the function formula is obtained by testing and is regarded as a known quantity; The air mass flow m_co at the cold end outlet of the vortex tube is solved by simultaneously solving formulas (2), (3), (4), and (5).

4. The heat radiation control method according to claim 3, wherein The fuel cell integrated controller further comprises a data acquisition module, an internal communication module, and a public storage unit, the data acquisition module is used to acquire voltage and current signals input and output by the air compressor controller, the hydrogen pump controller, and the high-pressure water pump controller; the internal communication module is used for communication of instruction receiving and state feedback of the air compressor controller, the hydrogen pump controller, and the high-pressure water pump controller; the public storage unit is used to run control logic and / or algorithms of each controller in the fuel cell system; and the public storage unit is further used for data saving.

5. The heat radiation control method according to claim 4, wherein The output of the air compressor controller is connected with the air compressor of the fuel cell to control the operation of the air compressor; the output of the hydrogen pump controller is connected with the hydrogen pump of the fuel cell to control the operation of the hydrogen pump; and the output of the high-pressure water pump controller is connected with the high-pressure water pump of the fuel cell to control the operation of the high-pressure water pump.

6. The heat radiation control method according to claim 5, wherein The fuel cell integrated controller further comprises a parallel bus, which is used to interact with the data acquisition module, interact with the DC boost converter, the air compressor controller, the hydrogen pump controller, and the high-pressure water pump controller, and interact with the internal communication module.

7. The heat radiation control method according to claim 6, wherein The fuel cell integrated controller further comprises a filter network, a power drive circuit, and a sensor, the filter network is used to filter out ripples in the rectified output voltage, process signal suppression, and prevent interference; the power drive circuit is used to control the operation of driving the air compressor, the hydrogen pump, and the water pump; and the sensor is used to detect the current and voltage of the circuit.

8. The heat radiation control method according to claim 7, wherein The fuel cell integrated controller further comprises a shared low-voltage power supply, a high-voltage copper bar, and a communication interface, the shared low-voltage power supply is used to provide working power for the air compressor controller, the hydrogen pump controller, and the high-pressure water pump controller; the high-voltage copper bar is used to connect the output of the stack and simultaneously connect the high-voltage input power supply of the air compressor controller, the hydrogen pump controller, and the high-pressure water pump controller; and the communication interface is arranged on the box body and is used to interact with the external communication module.

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