Apparatus, control device, and control method for fuel cell system

Abstract

The present application relates to an apparatus, a control device and a control method for a fuel cell system. An apparatus for a fuel cell system according to an embodiment is provided, the apparatus being associated with a distributed control module for a fuel cell system, the apparatus comprising a master controller and at least one slave controller connected to the master controller.

Description

Technical Field

[0001] Various embodiments of this disclosure generally relate to devices for fuel cell systems, control devices for fuel cell systems, and control methods for fuel cell systems. Background Technology

[0002] With the recent increase in the use of fuel cell systems, the technology for control modules used in fuel cell systems is under research. However, there are limitations to controlling various types of fuel cell systems using existing control methods.

[0003] Although research is underway to address the problems with existing control methods, various issues remain, such as the redesign of related control modules, and these issues are yet to be resolved. Summary of the Invention

[0004] One embodiment of this disclosure relates to an apparatus for a fuel cell system, a control device for a fuel cell system, and a control method for a fuel cell system, and more particularly to a distributed control module for a fuel cell system.

[0005] An apparatus for a fuel cell system according to one embodiment includes a main controller and at least one slave controller connected to the main controller.

[0006] According to one embodiment, at least one controller may be connected to a valve connected to a hydrogen tank.

[0007] According to one embodiment, at least one slave controller may include a first slave controller and a second slave controller, the first slave controller being connected to a first hydrogen tank valve and the second slave controller being connected to a second hydrogen tank valve.

[0008] According to one embodiment, the device for a fuel cell system may further include: a first hydrogen tank connected to a first hydrogen tank valve; and a second hydrogen tank connected to a second hydrogen tank valve.

[0009] According to one implementation, the master controller may include a master connector for connecting to at least one slave controller.

[0010] According to one implementation, at least one slave controller may include a slave connector for connecting to the master controller.

[0011] According to one embodiment, at least one slave controller may further include a hydrogen tank valve connector for connection to a hydrogen tank valve.

[0012] According to one embodiment, the device for the fuel cell system may further include: a fuel cell controller configured to transmit control commands regarding the hydrogen tank valve to a main controller.

[0013] According to one embodiment, a control device for a fuel cell system includes: a main controller configured to manage the fuel cell system; and at least one slave controller configured to manage the fuel cells of the fuel cell system, wherein the at least one slave controller is connected to the main controller.

[0014] According to one implementation, at least one controller can manage a hydrogen tank or a valve connected to the hydrogen tank.

[0015] According to one implementation, at least one controller can manage the valve or hydrogen tank based on the temperature or pressure of the hydrogen tank.

[0016] According to one implementation, at least one slave controller can transmit information about the valve or hydrogen tank to the master controller.

[0017] According to one implementation, the main controller can manage the fuel cell system based on information received from at least one controller regarding valves or hydrogen tanks.

[0018] According to one embodiment, the control device for the fuel cell system may further include: a fuel cell controller configured to transmit control commands regarding valves to a main controller.

[0019] According to one embodiment, a control method for a fuel cell system includes the steps of: using a master controller to manage the fuel cell system; and using at least one slave controller to manage the fuel cells of the fuel cell system, wherein the at least one slave controller is connected to the master controller.

[0020] According to one embodiment, the steps of managing the fuel cell may include: managing a hydrogen tank or a valve connected to the hydrogen tank.

[0021] According to one embodiment, the steps of managing the fuel cell may include: managing the valve or hydrogen tank based on the temperature or pressure of the hydrogen tank.

[0022] According to one embodiment, the steps of managing the fuel cell may include: transmitting information about valves or hydrogen tanks to a main controller.

[0023] According to one embodiment, the steps of managing the fuel cell may include: managing the fuel cell system based on information received from at least one controller regarding valves or hydrogen tanks.

[0024] According to one embodiment, the control method may further include using a fuel cell controller to transmit control commands about the valve to a main controller. Attached Figure Description

[0025] By describing in detail the exemplary embodiments of this disclosure with reference to the accompanying drawings, those skilled in the art will more clearly understand the above and other objects, features, and advantages of this disclosure, in which:

[0026] Figure 1 This is a block diagram of an apparatus for a fuel cell system according to one embodiment.

[0027] Figure 2 This is a diagram illustrating an apparatus for a fuel cell system according to one embodiment.

[0028] Figure 3 This is a diagram illustrating the construction of a device for a fuel cell system according to one embodiment.

[0029] Figure 4 This is a diagram used to illustrate the replacement of various modules of a device for a fuel cell system according to one embodiment.

[0030] Figure 5 This is a block diagram of a control device for a fuel cell system according to one embodiment.

[0031] Figure 6 This is a flowchart of a control method for a fuel cell system according to one embodiment.

[0032] Figure 7 This is a flowchart of a control method for a fuel cell system according to one embodiment.

[0033] Figure 8 This is a flowchart of a control method for a fuel cell system according to one embodiment. Detailed Implementation

[0034] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0035] However, the technical concept of this disclosure is not limited to the implementation methods described herein, but can be implemented in many different forms, and one or more components in the implementation methods may be selectively combined or replaced with other components without departing from the scope of this disclosure.

[0036] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of this disclosure shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It should be understood that terms such as those defined in a general dictionary shall be interpreted as having a meaning consistent with that meaning in the context of the prior art.

[0037] The terminology used in the embodiments of this disclosure is for the purpose of describing the embodiments only and is not intended to limit the disclosure.

[0038] As used herein, unless explicitly indicated by the context, the singular form is intended to include the plural form as well. It should be understood that "at least one of A, B, and C (or at least one or more)" refers to at least one of all possible combinations of A, B, and C.

[0039] Terms such as “first”, “second”, “A”, “B”, “(a)”, and “(b)” can be used to describe components of embodiments of this disclosure.

[0040] These terms are used only to distinguish one component from another, and the nature, order, or sequence of the components are not limited by these terms.

[0041] When a component is referred to as being “connected to,” “connected to,” or “combined with” another component, it should be understood that the component may be directly connected to, directly connected to, or directly combined with another component, or the component may be connected to, connected to, or combined with another component through another component inserted between the two.

[0042] When a component is described as being formed or arranged "above" or "below" another component, it should be understood that these components are in direct contact with each other, or that one or more components are formed or arranged between these components. The expression "above" or "below" should be understood to include not only the upward direction with respect to a component, but also the downward direction.

[0043] In the following description, embodiments will be described in detail with reference to the accompanying drawings. Even in different drawings, the same or corresponding components are given the same reference numerals and will not be described again here.

[0044] Figure 1 This is a block diagram of an apparatus for a fuel cell system according to one embodiment.

[0045] According to one embodiment, the device for a fuel cell system may include a main controller 110 and at least one slave controller, such as slave controllers 121 and 122.

[0046] Devices for fuel cell systems may include at least a portion of the control devices for fuel cell systems described below. Devices for fuel cell systems may include distributed modules for non-vehicle fuel cell systems. Devices for fuel cell systems may include, or be suitable for or usable in, non-vehicle fuel cell systems.

[0047] Devices for a fuel cell system may include at least a fuel cell or a portion thereof. Devices for a fuel cell system may include at least some of the following: circuits, electronic circuits, communication circuits, processors, semiconductors, memory, data transceivers, and valves.

[0048] Devices for a fuel cell system may include at least some of the components described herein or used to perform at least some of the operations / functions of this disclosure.

[0049] Controllers 121 and 122 can be connected to the main controller 110.

[0050] According to one embodiment, controllers 121 and 122 can be connected to hydrogen tank valves 131 and 132 connected to the hydrogen tank.

[0051] According to one implementation, the controllers 121 and 122 may include a first slave controller 121 and a second / nth slave controller 122. n may be a natural number greater than or equal to 2.

[0052] The first slave controller 121 can be connected to the first hydrogen tank valve 131, and the second / nth slave controller 122 can be connected to the second / nth hydrogen tank valve 132.

[0053] According to one embodiment, the device for the fuel cell system may further include a first hydrogen tank (not shown) connected to a first hydrogen tank valve 131 and a second / nth hydrogen tank (not shown) connected to a second / nth hydrogen tank valve 132.

[0054] According to one implementation, the main controller 110 may include a main connector for connection to the slave controllers 121 and 122.

[0055] According to one embodiment, slave controllers 121 and 122 may each include a slave connector for connection to master controller 110.

[0056] According to one embodiment, controllers 121 and 122 may also include hydrogen tank valve connectors for connection to hydrogen tank valves 131 and 132.

[0057] According to one embodiment, the device for the fuel cell system may further include a fuel cell controller (not shown) for transmitting control commands regarding hydrogen tank valves 131 and 132 to a main controller 110.

[0058] Devices used in fuel cell systems can be designed to be distributed and can form a topology.

[0059] Equipment used in fuel cell systems can be divided into master controllers and slave controllers, and can be manufactured in a modular fashion to facilitate scalability.

[0060] In equipment used in fuel cell systems, only the faulty component can be replaced.

[0061] In equipment used in fuel cell systems, the number of components to be modified can be limited as much as possible to replace the centralized hydrogen storage system management unit (HMU) with three hydrogen tanks.

[0062] Equipment used in fuel cell systems can prevent changes to the software (SW) and hardware (HW) of power plant auxiliary facilities (BoP).

[0063] Figure 2 This is a diagram illustrating an apparatus for a fuel cell system according to one embodiment.

[0064] Devices used in fuel cell systems include printed circuit boards (PCBs) with simpler wiring than those in existing centralized systems, which can help reduce wiring diagrams or time. Furthermore, devices used in fuel cell systems can help simplify and make more easily understood diagnostic systems and fail-safe algorithms for identifying problems.

[0065] The equipment used in fuel cell systems takes into account the characteristics of after-sales service, thereby reducing the replacement cost and time when problems are discovered.

[0066] Because the specifications of hydrogen tanks can be standardized, the equipment used in fuel cell systems can be supplied and managed as a combination of controller and hydrogen tank.

[0067] Equipment used in fuel cell systems is classified as hydrogen-related machine components. Therefore, when certified as a non-automotive product, the equipment can be classified as a high-risk product, and the number of available paths can be increased by adding redundancy in a master-slave structure.

[0068] Devices used in fuel cell systems are capable of handling unexpected situations independently. They can detect abnormal operation when at least a portion of the fuel cell or fuel cell system is not functioning correctly, and control that portion to operate normally or shut down the problematic part.

[0069] The master controller and slave controller of a device used in a fuel cell system do not need to be connected to each other by wires. The master controller may include a master HMU, and the slave controller may include a slave HMU.

[0070] The master controller and slave controller can be directly connected to each other via connectors. The master controller and slave controller can also be connected via board-to-board (B-to-B) connectors and are contained within the housing.

[0071] According to one embodiment, the main controller 210 may include a main connector for connection to slave controllers 221, 222, 223, and 224. The main connector may include a connector or a pin port. The main controller 210 may include a microcontroller unit (MCU), a driver, etc.

[0072] According to one implementation, each of the controllers 221, 222, 223, and 224 may include a slave connector for connection to the master controller 210. The slave connector may include a connector or a pin port.

[0073] According to one embodiment, controllers 221, 222, 223, and 224 may further include multiple hydrogen tank valve connectors for connection to hydrogen tank valves HTV1, HTV2, HTV3, ..., HTVn, respectively. Each hydrogen tank valve connector may include a connector or a pin port.

[0074] Figure 3 This is a diagram illustrating the construction of a device for a fuel cell system according to one embodiment.

[0075] The equipment for the fuel cell system may also include a fuel cell controller (FCU) 301 for transmitting control commands about the hydrogen tank valve HTV1 to the main controller 310.

[0076] FCU 301 may include a fuel cell control connector for connection to the main controller 310. The fuel cell control connector may include a connector or pin port, and may include a 40-pin connector.

[0077] The FCU 301 may include an MCU, a Controller Local Area Network (CAN) driver, interfaces, etc.

[0078] The main controller 310 may include a main connector 311 for connection to the slave controller 320 or FCU 301. The main connector 311 may include a 40-pin connector.

[0079] The master connector 311 can be connected to approximately six slave controllers or slave modules, and the number of pins on the master connector 311 can actually be increased.

[0080] Even if the size of the hydrogen tank or the specifications of the hydrogen tank valve HTV change, the main controller can be used simply by changing the slave controller.

[0081] Slave controller 320 may include a slave connector for connection to master controller 310. The slave connector may include a 6-pin connector. Slave controller 320 may also include a hydrogen tank valve connector for connection to hydrogen tank valve HTV1. The hydrogen tank valve connector may include a 4-pin connector.

[0082] The controller 320 may include a power regulator, a field-effect transistor (FET) HTV1FET for the hydrogen tank valve HTV1, a sensor or sensing unit, an MCU 321, etc.

[0083] The MCU 321 can be configured with low specifications and added to a slave controller for more precise control of the HMU or for bidirectional checking.

[0084] Signals / control signals generated by the MCU of FCU 301 can be transmitted / transmitted to the main controller 310 via a CAN driver, interface, or connector.

[0085] Commands to open or close the valve, transmitted by FCU 301, can be relayed to the MCU of the main controller 310 via connectors (fuel cell control connector and main connector). The MCU of the main controller 310 can transmit pulse width modulation (PWM) signals to the driver of the main controller 310 or perform control using PWM based on the duty cycle. The driver of the main controller 310 can transmit signals output from the driver to the FET of the slave controller 320 via connectors (main connector and slave connector). The FET of the slave controller 320 can receive and amplify the signals output from the driver.

[0086] The slave controller 320 can receive information or signals about the pressure or temperature of the hydrogen tank / hydrogen tank valve from the hydrogen tank valve HTV1 via a connector (hydrogen tank valve connector). The slave controller 320 can use sensors / sensing units to receive, supply, or sense current from the FET of the slave controller 320, and send / deliver the received / supply or sensed information / signals to the MCU of the master controller 310 via a connector (master connector or slave connector).

[0087] Figure 4 This is a diagram illustrating the substitution of modules in a device for a fuel cell system according to one embodiment.

[0088] In devices used in fuel cell systems, components such as MCU 401, FET 402, and hydrogen tank valve 403 are prone to failure, and when a failure occurs, the individual modules can be removed or replaced.

[0089] If replacement can be performed on a module-by-module basis in the event of a failure in FET 402 or hydrogen tank valve 403, diagnostics and fail-safe operations can be simplified, and the operation of decision logic regarding the FCU can be accelerated.

[0090] To develop power banks with various specifications, the system for fuel cell systems can be easily configured by adding slave controllers (slave HMUs) with the remaining pins corresponding to the number of hydrogen tanks to be used and modifying only the software of the master controller (master HMU).

[0091] Figure 5 This is a block diagram of a control device for a fuel cell system according to one embodiment.

[0092] According to one embodiment, a control device 500 for a fuel cell system may include a main controller 501 for managing the fuel cell system and at least one slave controller, such as slave controllers 502 and 503, for managing the fuel cells of the fuel cell system.

[0093] The control device 500 for a fuel cell system may include at least some components of the device described above for a fuel cell system device.

[0094] Controllers 502 and 503 can be connected to the main controller 501.

[0095] According to one implementation, controllers 502 and 503 can manage the valves or hydrogen tanks connected to the hydrogen tank.

[0096] According to one implementation, controllers 502 and 503 can manage the valve or hydrogen tank based on the temperature or pressure of the hydrogen tank.

[0097] According to one implementation, controllers 502 and 503 can send information about valves or hydrogen tanks to the main controller 501.

[0098] According to one implementation, the main controller 501 can manage the fuel cell system based on information received from the slave controllers 502 and 503 regarding valves or hydrogen tanks.

[0099] According to one embodiment, the control device 500 for the fuel cell system may further include a fuel cell controller (not shown) that transmits control commands regarding valves to the main controller 501.

[0100] Figure 6 This is a flowchart of a control method for a fuel cell system according to one embodiment.

[0101] Reference Figure 6 The operation of the control method for the fuel cell system can be performed by at least some components of the control device for the aforementioned fuel cell system.

[0102] In operation 601, the control device for the fuel cell system can use the main controller to manage the fuel cell system.

[0103] In operation 602, the control device for the fuel cell system can utilize at least one slave controller to manage the fuel cell of the fuel cell system.

[0104] At least one slave controller can be connected to the master controller.

[0105] According to one embodiment, the control device for a fuel cell system can manage a valve or a hydrogen tank connected to a hydrogen tank.

[0106] According to one embodiment, the control device for a fuel cell system can manage valves or hydrogen tanks based on the temperature or pressure of the hydrogen tank.

[0107] According to one embodiment, the control device for a fuel cell system can send information about valves or hydrogen tanks to the main controller.

[0108] According to one embodiment, the control device for the fuel cell system can manage the fuel cell system based on information received from the slave controller regarding valves or hydrogen tanks.

[0109] According to one embodiment, the control device for a fuel cell system can use the fuel cell controller to transmit control commands about valves to the main controller.

[0110] Figure 7 This is a flowchart of a control method for a fuel cell system according to one embodiment.

[0111] In the control method of a fuel cell system, the control device for the fuel cell system can start the fuel cell system.

[0112] In operation 710, 12V can be provided under the control of the user or administrator of the fuel cell system, through which the control device of the fuel cell system will start at least a part of the fuel cell system.

[0113] During operation 720, the control unit for the fuel cell system can use the main controller (HMU) to perform initialization and check if the diagnostic fault codes (DTCs) are zero.

[0114] In operation 721, when DTC is not zero, the control unit for the fuel cell system can use the FCU to provide an alarm for checking the hydrogen (H2) system / fuel cell system, or transmit / send the alarm to the user terminal / administrator terminal.

[0115] In operation 722, the control unit for the fuel cell system can use the FCU to shut down at least a portion of the fuel cell system at 12V.

[0116] When the DTC is zero, in operation 730, the control device for the fuel cell system can use the main controller (main HMU) to check whether the DTC of the first slave controller to the nth slave controller (HMU) is zero.

[0117] In operation 731, when at least some of the DTCs of the first slave controller to the nth slave controller are not zero, the control device for the fuel cell system can provide an alarm for checking the hydrogen tank or valve connected to the slave controller with a non-zero DTC / an alarm for the hydrogen tank valve, or transmit / send the alarm to the user terminal / administrator terminal.

[0118] When all DTCs of the first slave controller to the nth slave controller are zero, in operation 740, the control device for the fuel cell system can use an analog-to-digital converter (ADC) to transmit information or signals about the temperature and pressure of the first hydrogen tank connected to the first slave controller to the main controller.

[0119] In operation 741, the control device for the fuel cell system can use an ADC to transmit information or signals about the temperature and pressure of the second hydrogen tank connected to the second slave controller to the main controller.

[0120] In operation 742, the control device for the fuel cell system can use an ADC to transmit information or signals about the temperature and pressure of the nth hydrogen tank connected to the nth slave controller to the master controller.

[0121] In operation 750, the controller device for the fuel cell system can enable the main controller to receive data or information about the first to nth hydrogen tanks respectively connected to the first to nth slave controllers from all the slave controllers from the first to the nth slave controllers.

[0122] In operation 760, the control unit for the fuel cell system can use the FCU to check whether the fuel cell system is ready to be turned on (ON).

[0123] When the fuel cell system is not ready to be turned on, operation 750 can be returned and operation 750 and operation 760 can be repeated.

[0124] In operation 770, when the fuel cell system is ready to be turned on, the control device for the fuel cell system can be turned on by connecting the igniter / power supply, etc., under the control of the user or administrator.

[0125] In operation 780, the control unit for the fuel cell system can use the FCU to activate the on-sequence logic and transmit ON / OFF commands to turn on or off the first hydrogen tank to the nth hydrogen tank.

[0126] In operation 790, the control device for the fuel cell system can use the master controller to control the FETs of the first slave controller to the nth slave controller.

[0127] In operation 791, the control device for the fuel cell system can start the fuel cell under the control of the user or administrator.

[0128] Figure 8 This is a flowchart of a control method for a fuel cell system according to one embodiment.

[0129] In the control methods of fuel cell systems, the control device for the fuel cell system can detect or repair / resolve errors / problems in the hydrogen tank during the operation of the fuel cell system.

[0130] In operation 801, the control device for the fuel cell system can use the second slave controller (or the nth slave controller) to check the temperature / pressure of the second hydrogen tank (or the nth hydrogen tank) / whether there is a fault in the second hydrogen tank valve (or the nth hydrogen tank valve).

[0131] In operation 802, the control unit for the fuel cell system can use the main controller to provide or transmit alarms about faults in the second slave controller (or the nth slave controller).

[0132] In operation 803, the control unit for the fuel cell system can use the FCU to provide or transmit (user) alarms and shut down the fuel cell.

[0133] In operation 804, the control device for the fuel cell system can perform a shutdown without applying 12V under the control of a user or administrator, and can control the second slave device.

[0134] In operation 805, the control device for the fuel cell system can be turned on to apply 12V under the control of the user or administrator.

[0135] In operation 806, the control unit for the fuel cell system can perform initialization using the main controller and set the DTC to a non-zero value.

[0136] In operation 807, the control unit for the fuel cell system can use the main controller to identify / check the second slave controller.

[0137] When the second slave controller is not identified / checked, the control unit for the fuel cell system can return to operation 806 and execute operations 806 and 807.

[0138] When the second slave controller is identified / inspected, in operation 808, the control unit for the fuel cell system can perform initialization using the main controller and set the DTC to zero.

[0139] Subsequently, the control device for the fuel cell system can execute... Figure 7 The startup sequence.

[0140] The term "unit" as used in the embodiments described herein should be understood to mean a software or hardware component that performs certain functions, such as a field-programmable gate array (FPGA) or an application-specific integrated circuit (ASIC). However, the term "unit" is not limited to software or hardware. A "unit" may be configured to be stored in addressable storage media or reproduced as one or more processors. Therefore, the term "unit" may include, for example, components such as software components, object-oriented software components, class components and task components, processes, functions, attributes, procedures, subroutines, program code segments, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and parameters. The components and functions provided in a "unit" may be combined into a smaller number of components and "units," or may be divided into sub-components and "sub-units." Furthermore, components and "units" may be implemented as one or more CPUs executing a secure multimedia card or device.

[0141] Although the present disclosure has been described above with reference to exemplary embodiments thereof, those skilled in the art will understand that various changes and modifications may be made without departing from the technical concept and scope of the present disclosure as defined by the appended claims.

[0142] Cross-references to related applications

[0143] This application claims priority and benefit to Korean Patent Application No. 10-2022-0052468, filed on April 28, 2022, the disclosure of which is incorporated herein by reference in its entirety.

Claims

1. An apparatus for a fuel cell system, the apparatus comprising: Main controller; At least one slave controller connected to the master controller, wherein the at least one slave controller includes a first slave controller and a second slave controller, the first slave controller being connected to a first hydrogen tank valve, and the second slave controller being connected to a second hydrogen tank valve; and A fuel cell controller configured to transmit control commands regarding the hydrogen tank valve to the main controller. The fuel cell controller is configured to provide an alarm for checking a hydrogen tank or valve connected to a slave controller with a non-zero DTC when the diagnostic fault code (DTC) of at least one slave controller is not zero.

2. The device according to claim 1, wherein, The at least one controller is connected to a valve connected to the hydrogen tank.

3. The device according to claim 1, further comprising: The first hydrogen tank is connected to the valve of the first hydrogen tank; as well as The second hydrogen tank is connected to the valve of the second hydrogen tank.

4. The device according to claim 1, wherein, The master controller includes a master connector for connecting to the at least one slave controller.

5. The device according to claim 1, wherein, The at least one slave controller includes a slave connector for connecting to the master controller.

6. The device according to claim 5, wherein, The at least one slave controller also includes a hydrogen tank valve connector for connection to a hydrogen tank valve.

7. A control device for a fuel cell system, the control device comprising: The main controller is configured to manage the fuel cell system; At least one slave controller, the at least one slave controller being configured to manage the fuel cells of the fuel cell system, Wherein, the at least one slave controller is connected to the master controller, the at least one slave controller including a first slave controller and a second slave controller, the first slave controller being connected to a first hydrogen tank valve, and the second slave controller being connected to a second hydrogen tank valve; and A fuel cell controller configured to transmit control commands regarding the hydrogen tank valve to the main controller. The fuel cell controller is configured to provide an alarm for checking a hydrogen tank or valve connected to a slave controller with a non-zero DTC when the diagnostic fault code (DTC) of at least one slave controller is not zero.

8. The control device according to claim 7, wherein, The at least one hydrogen tank or valve connected to the hydrogen tank is managed by the controller.

9. The control device according to claim 8, wherein, The at least one controller manages the valve or the hydrogen tank based on the temperature or pressure of the hydrogen tank.

10. The control device according to claim 8, wherein, The at least one slave controller transmits information about the valve or the hydrogen tank to the master controller.

11. The control device according to claim 10, wherein, The main controller manages the fuel cell system based on information received from the at least one secondary controller regarding the valve or the hydrogen tank.

12. A control method for a fuel cell system, the control method comprising the following steps: The fuel cell system is managed using a main controller; The fuel cell system uses at least one slave controller to manage the fuel cell. Wherein, the at least one slave controller is connected to the master controller, the at least one slave controller includes a first slave controller and a second slave controller, the first slave controller is connected to a first hydrogen tank valve, and the second slave controller is connected to a second hydrogen tank valve; and The fuel cell controller is used to transmit control commands regarding the hydrogen tank valve to the main controller. The fuel cell controller is configured to provide an alarm for checking a hydrogen tank or valve connected to a slave controller with a non-zero DTC when the diagnostic fault code (DTC) of at least one slave controller is not zero.

13. The control method according to claim 12, wherein, The steps of managing the fuel cell include: managing the hydrogen tank or the valve connected to the hydrogen tank.

14. The control method according to claim 13, wherein, The steps of managing the fuel cell include: managing the valve or the hydrogen tank based on the temperature or pressure of the hydrogen tank.

15. The control method according to claim 13, wherein, The steps for managing the fuel cell include transmitting information about the valve or the hydrogen tank to the main controller.

16. The control method according to claim 15, wherein, The steps of managing the fuel cell include: managing the fuel cell system based on information received from at least one controller regarding the valve or the hydrogen tank.

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