Control method and device of vehicle-mounted hydrogen storage system, storage medium and vehicle

Abstract

The invention provides a control method and device for a vehicle-mounted hydrogen storage system, a storage medium and a vehicle. The control method comprises the steps that when the vehicle is off line, a vehicle-mounted hydrogen storage system controller receives a wake-up signal; when the vehicle-mounted hydrogen storage system controller receives the wake-up signal, a hydrogen bottle pressure signal in the vehicle-mounted hydrogen storage system and a pipe pressure signal on the hydrogen inlet side of the electric pile are obtained; when the obtained hydrogen bottle pressure signal is smaller than a first preset pressure threshold value, and / or the obtained pipe pressure signal is smaller than a second pressure threshold value, the vehicle-mounted hydrogen storage system controller enters a non-activated state; wherein when the vehicle-mounted hydrogen storage system enters the non-activated state, the vehicle-mounted hydrogen storage system controller does not execute the control action, and the control action at least comprises message receiving, message sending and fault diagnosis. The vehicle-mounted hydrogen storage system controller can be prevented from mistakenly reporting faults when the vehicle is offline and hydrogen displacement is not carried out, and normal running operation of the vehicle can be guaranteed when the vehicle is offline and hydrogen displacement is not carried out.

Description

Technical Field

[0001] This invention relates to the field of hydrogen fuel cell vehicle control technology, and particularly to a control method for an on-board hydrogen storage system. The invention also relates to a control device for an on-board hydrogen storage system based on the above control method, a computer-readable storage medium capable of implementing the above control method, and a vehicle equipped with the above control device. Background Technology

[0002] For fuel cell vehicles, before the vehicle rolls off the production line and is refilled with hydrogen for the first time, the hydrogen tank in the vehicle's on-board hydrogen storage system (which can be called the "on-board hydrogen storage system") is empty. At this time, the vehicle needs to rely on its own power battery pack to drive the vehicle, rather than relying on the fuel cell for power.

[0003] However, when the Hydrogen Management System (HMS) is powered on for testing, it will report a fault if it detects that the pressure in the hydrogen storage system is not up to standard. After receiving the fault information from the Hydrogen Management System (HMS), the Vehicle Control Unit (VCU) will issue commands such as prohibiting the vehicle from starting, which will prevent the vehicle from performing normal driving operations. Summary of the Invention

[0004] In view of this, the present invention aims to provide a control method for an on-board hydrogen storage system, so as to ensure the normal operation of the vehicle when the vehicle is off the production line and has not been replaced with hydrogen.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A control method for an on-board hydrogen storage system, the control method comprising:

[0007] When the vehicle rolls off the production line, the on-board hydrogen storage system controller receives a wake-up signal;

[0008] When the on-board hydrogen storage system controller receives the wake-up signal, it acquires the hydrogen cylinder pressure signal in the on-board hydrogen storage system and the pipeline pressure signal on the hydrogen inlet side of the fuel cell stack.

[0009] When the acquired hydrogen cylinder pressure signal is less than a first preset pressure threshold, and / or the acquired pipe pressure signal is less than a second pressure threshold, the on-board hydrogen storage system controller is put into an inactive state.

[0010] When entering the inactive state, the on-board hydrogen storage system controller does not perform any control actions, and the control actions include at least message reception, message transmission, and fault diagnosis.

[0011] Furthermore, the control method also includes:

[0012] When the acquired hydrogen cylinder pressure signal is not less than a first preset pressure threshold and the acquired pipe pressure signal is not less than a second pressure threshold, the on-board hydrogen storage system controller enters normal working state.

[0013] Furthermore, the hydrogen cylinder pressure signal is obtained through a first pressure sensor on the hydrogen supply pipeline, and the pipeline pressure signal is obtained through a second pressure sensor on the hydrogen supply pipeline.

[0014] The first pressure sensor is located on the inlet side of the pressure reducing device on the hydrogen supply pipeline, and the second pressure sensor is located on the outlet side of the pressure reducing device.

[0015] Furthermore, the first preset pressure threshold is 10 MPa, and the second preset pressure threshold is 2.5 MPa.

[0016] Furthermore, the control method also includes:

[0017] When the on-board hydrogen storage system controller enters the inactive state, the vehicle controller allows the vehicle to operate powered by the on-board power battery pack.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The control method for the on-board hydrogen storage system described in this invention, after the vehicle rolls off the production line and the on-board hydrogen storage system controller is activated, acquires the hydrogen cylinder pressure signal and the pipeline pressure signal. When at least one of the hydrogen cylinder pressure signal and the pipeline pressure signal is less than the corresponding preset pressure threshold, the on-board hydrogen storage system controller enters an inactive state, preventing it from performing control actions such as message reception and transmission and fault diagnosis. This avoids the on-board hydrogen storage system controller falsely reporting a fault when the vehicle rolls off the production line and has not undergone hydrogen replacement and refueling, thus preventing the vehicle controller from issuing a prohibition command to the entire vehicle and ensuring the normal operation of the vehicle.

[0020] This invention also proposes a control device for an on-board hydrogen storage system, the control device comprising an acquisition module, a comparison module, and an enable control module;

[0021] The acquisition module is used to acquire the hydrogen cylinder pressure signal in the on-board hydrogen storage system and the pipe pressure signal on the hydrogen inlet side of the fuel cell stack when the vehicle rolls off the production line and the on-board hydrogen storage system controller receives a wake-up signal.

[0022] The comparison module is used to compare the acquired hydrogen cylinder pressure signal with a first preset pressure threshold, and to compare the acquired pipe pressure signal with a second pressure threshold.

[0023] The enabling control module is used to put the on-board hydrogen storage system controller into an inactive state when the hydrogen cylinder pressure signal is less than a first preset pressure threshold and / or the pipe pressure signal is less than a second pressure threshold.

[0024] When entering the inactive state, the on-board hydrogen storage system controller does not perform any control actions, and the control actions include at least message reception, message transmission, and fault diagnosis.

[0025] Furthermore, the enabling control module is also used to enable the on-board hydrogen storage system controller to enter normal working state when the hydrogen cylinder pressure signal is not less than a first preset pressure threshold and the pipe pressure signal is not less than a second pressure threshold.

[0026] Furthermore, the acquisition module includes a first pressure sensor and a second pressure sensor disposed on the hydrogen supply pipeline (11). The first pressure sensor is located on the inlet side of the pressure reducing device on the hydrogen supply pipeline (11), and the second pressure sensor is located on the outlet side of the pressure reducing device. The hydrogen cylinder pressure signal is acquired through the first pressure sensor, and the pipeline pressure signal is acquired through the second pressure sensor; and / or,

[0027] The first preset pressure threshold is 10 MPa, and the second preset pressure threshold is 2.5 MPa.

[0028] The control device for the on-board hydrogen storage system described in this invention, through the settings of each module, acquires the hydrogen cylinder pressure signal and the pipeline pressure signal after the vehicle is off-lined and the on-board hydrogen storage system controller is awakened. When at least one of the hydrogen cylinder pressure signal and the pipeline pressure signal is less than the corresponding preset pressure threshold, the on-board hydrogen storage system controller enters an inactive state, preventing it from performing control actions such as message reception and transmission and fault diagnosis. This avoids the on-board hydrogen storage system controller falsely reporting a fault when the vehicle is off-lined and has not undergone hydrogen replacement and refueling, thus preventing the vehicle controller from issuing a prohibition command to the entire vehicle, thereby ensuring the normal operation of the vehicle.

[0029] In addition, the present invention also proposes a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the control method of the on-board hydrogen storage system as described above.

[0030] In addition, the present invention also proposes a vehicle equipped with an on-board hydrogen storage system and a control device for the on-board hydrogen storage system as described above.

[0031] The computer-readable storage medium and vehicle of the present invention have the same beneficial effects compared to the prior art as the control method and control device of the above-mentioned on-board hydrogen storage system, and will not be described again here. Attached Figure Description

[0032] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0033] Figure 1 This is a simplified structural diagram of the on-board hydrogen storage system according to an embodiment of the present invention;

[0034] Figure 2 This is a flowchart of the control method for the on-board hydrogen storage system according to an embodiment of the present invention;

[0035] Figure 3 This is a logic diagram of the control method for the on-board hydrogen storage system according to an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of the control device of the on-board hydrogen storage system according to an embodiment of the present invention;

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Hydrogen cylinder; 2. Fuel cell stack; 3. Hydrogen refueling port; 4. Check valve; 5. Filter; 6. Pressure reducing valve; 7. High-pressure sensor; 8. Medium-pressure sensor; 9. On-board hydrogen storage system controller; 10. Vehicle controller; 11. Hydrogen supply pipeline; 111. High-pressure pipeline; 112. Medium-pressure pipeline; 12. Filling pipeline;

[0039] 100. Acquisition module; 200. Comparison module; 300. Storage module; 400. Enable control module. Detailed Implementation

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0041] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0042] In the description of this invention, it should be noted that the use of terms such as "upper," "lower," "inner," and "outer," indicating orientation or positional relationship, is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the use of terms such as "first" and "second" is also for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] Furthermore, in the description of this invention, unless otherwise explicitly specified, the connecting structures between mating components can be conventional in the art. Moreover, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0044] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] Example 1

[0046] This embodiment relates to a control method for an on-board hydrogen storage system. This control method is used to control the on-board hydrogen storage system in a fuel cell vehicle when it rolls off the production line, so as to ensure the normal operation of the vehicle when it rolls off the production line and has not undergone hydrogen replacement and refueling.

[0047] Before introducing the control method of this embodiment, we will first combine... Figure 1 A brief description of the on-board hydrogen storage system in this embodiment will be provided.

[0048] In terms of overall structure, an on-board hydrogen storage system generally includes a hydrogen cylinder 1, a filling pipeline 12 connected to the inlet of the hydrogen cylinder 1, a hydrogen supply pipeline 11 connecting the outlet of the hydrogen cylinder 1 to the fuel cell stack 2, and an on-board hydrogen storage system controller 9.

[0049] The hydrogen cylinder 1 is typically equipped with a valve at its opening. Both the inlet and outlet of the hydrogen cylinder 1 are located on the valve, and the aforementioned filling line 12 and hydrogen supply line 11 are also specifically connected to the valve. Furthermore, in an on-board hydrogen storage system, one or more hydrogen cylinders 1 can be configured as needed. When there are multiple hydrogen cylinders 1, the configuration of each cylinder 1 can be referenced from existing multi-cylinder on-board hydrogen storage systems.

[0050] A pressure reducing device is installed on the hydrogen supply line 11. This device reduces the pressure of the hydrogen from the hydrogen cylinder 1 to meet the hydrogen inlet pressure requirements of the fuel cell stack 2. In practice, the pressure reducing device can generally be a pressure reducing valve 6, which is connected in series on the hydrogen supply line 11. Based on the setting of the pressure reducing valve 6, the hydrogen supply line 11 is divided into a high-pressure line 111 located on the inlet side of the pressure reducing valve 6 and a medium-pressure line 112 located on the outlet side of the pressure reducing valve 6.

[0051] In practical implementation, the aforementioned pressure reducing valve 6 can be an existing mechanical pressure reducing valve. This valve 6 opens when a pressure difference is generated between the inlet and outlet sides, i.e., between the high-pressure pipeline 111 and the medium-pressure pipeline 112, thus reducing the pressure of the gas in the high-pressure pipeline 111 and sending it to the medium-pressure pipeline 112. The pressure of the gas in the high-pressure pipeline 111 after being reduced by the aforementioned pressure reducing valve 6 can be selected according to the system design requirements, especially the gas consumption requirements of the fuel cell stack 2, which will not be elaborated further here.

[0052] To ensure the quality of gas supplied to fuel cell stack 2, a filter 5 is typically installed on the hydrogen supply line 11. This filter 5 is also connected in series on the hydrogen supply line 11, specifically located on the high-pressure line 111 between hydrogen cylinder 1 and pressure reducing valve 6. In practice, the filter 5 can be any existing gas filtration product, and in particular, it should be a product suitable for hydrogen filtration.

[0053] In addition, a hydrogen filling port 3 is generally provided at the end of the filling pipeline 12 for connecting to an external gas source. At the same time, to increase the safety of the filling operation, a filling control valve is usually provided on the filling pipeline 12. This filling control valve can be, for example, a one-way valve 4 connected in series on the filling pipeline 12, and both the one-way valve 4 and the hydrogen filling port 3 can be existing conventional components.

[0054] In addition, a high-pressure sensor 7 located at the inlet side of the pressure reducing device, i.e., the pressure reducing valve 6, and a medium-pressure sensor 8 located at the outlet side of the pressure reducing device, i.e., the pressure reducing valve 6, are generally installed on the hydrogen supply line 11. Specifically, the high-pressure sensor 7 is installed on the high-pressure line 111, and the medium-pressure sensor 8 is installed on the medium-pressure line 112. The high-pressure and medium-pressure sensors 7 and 8 located on both sides of the pressure reducing device, i.e., the pressure reducing valve 6, can detect the high-pressure and medium-pressure in the hydrogen supply line 11. Since it is located between the hydrogen cylinder 1 and the pressure reducing valve 6, the pressure detected by the high-pressure sensor 7 is usually also the pressure inside the hydrogen cylinder 1.

[0055] In practice, both the high-pressure sensor 7 and the medium-pressure sensor 8 can be gas sensors that meet the pressure detection requirements. Their installation on the hydrogen supply line 11 and their connection with the on-board hydrogen storage system controller 9 can be carried out in accordance with the relevant instructions and installation requirements of each sensor.

[0056] The on-board hydrogen storage system controller 9 is connected to the high-pressure sensor 7, the medium-pressure sensor 8, and other electrical components in the on-board hydrogen storage system. At the same time, in the vehicle, the on-board hydrogen storage system controller 9 is also connected to the vehicle controller 10.

[0057] As the control component of the entire on-board hydrogen storage system, the on-board hydrogen storage system controller 9 is mainly responsible for receiving and sending messages, diagnosing faults in the on-board hydrogen storage system, and controlling the electrical components in the system. In specific implementation, referring to the relevant structures in existing fuel cell vehicles, the on-board hydrogen storage system controller 9 can adopt a controller device with data input, output, data storage, and processing functions, and each module in the on-board hydrogen storage system controller 9 can also adopt a corresponding circuit module unit capable of data transmission, storage, or processing.

[0058] Based on the above description of the on-board hydrogen storage system, when a fuel cell vehicle rolls off the production line, it needs to be replaced with hydrogen. After adding hydrogen to the on-board hydrogen storage system, the on-board hydrogen storage system can supply hydrogen to the fuel cell stack 2 so that the fuel cell can start up and work normally.

[0059] However, typically, when a vehicle first rolls off the production line and hasn't undergone its first hydrogen replacement and refueling, the onboard hydrogen storage system is empty. At this time, the vehicle's onboard battery pack stores electricity, allowing it to power the vehicle. But if, during power-on testing, the onboard hydrogen storage system controller 9 detects that the pressure in the system (e.g., the pressure detected by the high-pressure sensor 7 or the medium-pressure sensor 8) is below standard, it will falsely report a fault. Upon receiving this fault information from the onboard hydrogen storage system controller 9, the vehicle controller 10 will issue commands such as prohibiting starting, preventing the vehicle from operating normally.

[0060] The control method in this embodiment aims to overcome the problem in existing on-board hydrogen storage systems where false alarms from the on-board hydrogen storage system controller 9 prevent the vehicle from driving after it has been taken off the production line and has not been refueled with hydrogen. Furthermore, the overall design incorporates… Figure 2 and Figure 3 As shown, the control method mainly includes the following steps.

[0061] Step s1: When the vehicle rolls off the production line, the on-board hydrogen storage system controller 9 receives a wake-up signal.

[0062] In step s1, when the vehicle is off the production line, generally after the vehicle is powered on, the vehicle controller 10 sends a wake-up signal to the on-board hydrogen storage system controller 9. When the on-board hydrogen storage system controller 9 receives the wake-up signal and is awakened, it enters the self-test state.

[0063] Step s2: When the on-board hydrogen storage system controller 9 receives the wake-up signal, it acquires the hydrogen cylinder pressure signal in the on-board hydrogen storage system and the pipe pressure signal on the hydrogen inlet side of the fuel cell stack 2.

[0064] In step s2, after the on-board hydrogen storage system controller 9 is woken up and enters the self-test state, the acquisition of the hydrogen cylinder pressure signal and the pipeline pressure signal on the hydrogen inlet side of the fuel cell stack 2 can be achieved, for example, by acquiring the hydrogen cylinder pressure signal through the first pressure sensor installed on the hydrogen supply pipeline 11, while the pipeline pressure signal is acquired through the second pressure sensor installed on the hydrogen supply pipeline 11.

[0065] The first pressure sensor is located on the pressure reducing device on the hydrogen supply pipeline 11, that is, on the inlet side of the pressure reducing valve 6, while the second pressure sensor is located on the outlet side of the pressure reducing device, that is, on the pressure reducing valve 6. In a preferred embodiment, the first pressure sensor may be the high-pressure sensor 7, and the second pressure sensor may be the medium-pressure sensor 8.

[0066] In this way, by acquiring the hydrogen cylinder pressure signal and pipeline pressure signal through the high-pressure sensor 7 and the medium-pressure sensor 8, the existing components in the on-board hydrogen storage system can be fully utilized, avoiding the need for new structures and thus reducing the overall vehicle cost.

[0067] However, in addition to obtaining the hydrogen cylinder pressure signal and pipeline pressure signal using the aforementioned high-pressure sensor 7 and medium-pressure sensor 8, other feasible implementations can also obtain the required hydrogen cylinder pressure signal and pipeline pressure signal through other sensing components installed in the on-board hydrogen storage system, and this is not a limitation.

[0068] Step s3: When the acquired hydrogen cylinder pressure signal is less than the first preset pressure threshold and / or the acquired pipe pressure signal is less than the second pressure threshold, the on-board hydrogen storage system controller 9 is put into an inactive state.

[0069] In step s3, based on the pressure requirements of hydrogen cylinder 1 in the on-board hydrogen storage system and the hydrogen inlet pressure requirements of fuel cell stack 2, the first preset pressure threshold can generally be 10 MPa, and the second preset pressure threshold can generally be 2.5 MPa.

[0070] When at least one of the acquired hydrogen cylinder pressure signal and pipeline pressure signal meets the requirement that the hydrogen cylinder pressure is less than 10 MPa and the pipeline pressure is less than 2.5 MPa, it indicates that the vehicle has not undergone hydrogen replacement and refilling after it rolled off the production line, and the entire system is not filled with hydrogen. Therefore, the on-board hydrogen storage system controller 9 can be put into an inactive state. When inactive, the on-board hydrogen storage system controller 9 will not perform any control actions, including at least message reception, message transmission, and fault diagnosis.

[0071] Therefore, by controlling the on-board hydrogen storage system controller 9 not to perform system fault diagnosis and not to transmit messages with the vehicle controller 10, this embodiment can prevent the on-board hydrogen storage system controller 9 from falsely reporting a fault when the vehicle is off the production line and the on-board hydrogen storage system has not been replaced with hydrogen, that is, when the on-board hydrogen storage system has not been filled with hydrogen. This would prevent the vehicle controller 10 from prohibiting the normal start and driving of the vehicle.

[0072] In this embodiment, it remains as follows Figure 3 As shown, the above control method further includes enabling the on-board hydrogen storage system controller 9 to enter normal working state when the acquired hydrogen cylinder pressure signal is not less than a first preset pressure threshold and the acquired pipe pressure signal is not less than a second pressure threshold.

[0073] At this time, the acquired hydrogen cylinder pressure signal and pipeline pressure signal both meet the corresponding requirements, that is, the hydrogen cylinder pressure is not less than 10MPa and the pipeline pressure is not less than 2.5MPa. This indicates that the vehicle has been replaced with hydrogen after it rolled off the production line, and hydrogen has been added to the system, which can supply hydrogen to the fuel cell stack 2, so that the fuel cell can start up and work normally.

[0074] When the on-board hydrogen storage system controller 9 enters normal operating mode, similar to existing fuel cell systems in vehicles, it typically performs a self-check to confirm whether there are any faults in the entire system. If a fault is found, it reports it; otherwise, it waits for the fuel cell controller (FCU) to send a working signal. Once the FCU sends a working signal to the hydrogen storage system controller 9, the on-board hydrogen storage system begins supplying hydrogen to the fuel cell stack 2, and the fuel cell system can start operating normally.

[0075] In this embodiment, for newly manufactured vehicles, as mentioned above, they can generally still operate normally by being powered by their own onboard battery pack even without refueling with hydrogen. Therefore, the control method of this embodiment may also include allowing the vehicle controller 10 to allow the vehicle to operate powered by the onboard battery pack when the onboard hydrogen storage system controller 9 is inactive.

[0076] Thus, powered by the battery pack, the vehicle is driven by the drive motor, enabling it to run normally after it rolls off the production line, allowing it to enter the hydrogen refueling station for hydrogen refueling.

[0077] The control method of the on-board hydrogen storage system in this embodiment adopts the above design. After the vehicle is off the production line and the on-board hydrogen storage system controller is awakened, it acquires the hydrogen cylinder pressure signal and the pipeline pressure signal. When at least one of the hydrogen cylinder pressure signal and the pipeline pressure signal is less than the corresponding preset pressure threshold, the on-board hydrogen storage system controller 9 enters an inactive state, so that the on-board hydrogen storage system controller 9 does not perform control actions such as message receiving and sending and fault diagnosis. This can avoid the on-board hydrogen storage system controller 9 falsely reporting a fault when the vehicle is off the production line and has not been replaced with hydrogen, causing the vehicle controller 10 to issue a prohibition command to the whole vehicle. This can ensure the normal driving operation of the vehicle after it is off the production line and has a good application effect.

[0078] Example 2

[0079] This embodiment relates to a control device for an on-board hydrogen storage system. This control device, during operation, can implement the control method described in Embodiment 1, and combines... Figure 4 As shown, in terms of overall structure, the control device includes an acquisition module 100, a comparison module 200, and an enable control module 400.

[0080] The acquisition module 100 is used to acquire the hydrogen cylinder pressure signal in the on-board hydrogen storage system and the pipe pressure signal on the hydrogen inlet side of the fuel cell stack 2 when the vehicle rolls off the production line and the on-board hydrogen storage system controller 9 receives a wake-up signal. The comparison module 200 is used to compare the acquired hydrogen cylinder pressure signal with a first preset pressure threshold and the acquired pipe pressure signal with a second pressure threshold.

[0081] The enable control module 400 is used to put the on-board hydrogen storage system controller 9 into an inactive state when at least one of the two conditions, namely, the hydrogen cylinder pressure signal is less than a first preset pressure threshold and the pipeline pressure signal is less than a second pressure threshold, is met. In the inactive state, the on-board hydrogen storage system controller 9 does not perform control actions, which include at least message reception, message transmission and fault diagnosis.

[0082] Specifically, in the control device of this embodiment, referring to the description in Embodiment 1, the acquisition module 100 includes a first pressure sensor and a second pressure sensor installed on the hydrogen supply pipeline 11. The first pressure sensor and the second pressure sensor are respectively installed on the inlet side and outlet side of the pressure reducing device, i.e., the pressure reducing valve 6, on the hydrogen supply pipeline 11. Preferably, the first pressure sensor and the second pressure sensor can be respectively a high-pressure sensor 7 and a medium-pressure sensor 8 installed on the hydrogen supply pipeline 11, so that the cylinder pressure signal is obtained through the high-pressure sensor 7 and the pipeline pressure signal is obtained through the medium-pressure sensor 8. At the same time, the first preset pressure threshold can be, for example, 10 MPa, and the second preset pressure threshold can be, for example, 2.5 MPa.

[0083] Furthermore, the aforementioned comparison module 200 and enable control module 400 can be implemented using circuit module units with corresponding data processing functions located in the on-board hydrogen storage system controller 9. Meanwhile, it is worth noting that, in addition to the above modules, in specific implementations, the on-board hydrogen storage system controller 9 will also include modules such as a storage module 300 and other necessary modules. The storage module 300 can store control commands related to the control device of this embodiment, while other necessary modules typically include input / output modules, timing modules, and calculation modules, etc., which will not be detailed here.

[0084] In this embodiment, referring to the description in Embodiment 1, when the control device is working, if the hydrogen cylinder pressure signal is not less than the first preset pressure threshold and the pipe pressure signal is not less than the second pressure threshold, the above-mentioned enable control module 400 can also enable the on-board hydrogen storage system controller 9 to enter the normal working state, so that the fuel cell system can be turned on and worked under the control of the fuel cell controller.

[0085] The control device of the on-board hydrogen storage system in this embodiment, through the settings of the above modules, after the vehicle is off the production line and the on-board hydrogen storage system controller is awakened, acquires the hydrogen cylinder pressure signal and the pipeline pressure signal. When at least one of the hydrogen cylinder pressure signal and the pipeline pressure signal is less than the corresponding preset pressure threshold, the on-board hydrogen storage system controller enters an inactive state, preventing it from performing control actions such as message reception and transmission and fault diagnosis. In this way, it can avoid the on-board hydrogen storage system controller falsely reporting a fault when the vehicle is off the production line and has not been replaced with hydrogen, thus preventing the vehicle controller from issuing a prohibition command to the vehicle. This ensures the normal operation of the vehicle and has a good application effect.

[0086] Example 3

[0087] This embodiment relates to a computer-readable storage medium storing a computer program thereon, and when the computer program is executed by a processor, it implements the control method of the on-board hydrogen storage system in Embodiment 1.

[0088] At this point, a typical example of a computer-readable storage medium in this embodiment is a memory. Furthermore, computer-readable media include permanent and non-permanent, removable and non-removable media, and information storage can be achieved by any method or technology.

[0089] Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer-readable storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information that can be accessed by a computing device.

[0090] In addition, this embodiment also relates to a vehicle equipped with an on-board hydrogen storage system and a control device for the on-board hydrogen storage system in Embodiment 2.

[0091] The computer-readable storage medium and vehicle of this embodiment have the advantages of the control method in Embodiment 1 and the control device in Embodiment 2, which will not be described in detail here.

[0092] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A control method for an on-board hydrogen storage system, characterized in that, The control method includes: When the vehicle rolls off the production line, the on-board hydrogen storage system controller (9) receives a wake-up signal; When the on-board hydrogen storage system controller (9) receives the wake-up signal, it acquires the hydrogen cylinder pressure signal in the on-board hydrogen storage system and the pipe pressure signal on the hydrogen inlet side of the fuel cell stack (2). When the acquired hydrogen cylinder pressure signal is less than a first preset pressure threshold, and / or the acquired pipe pressure signal is less than a second pressure threshold, the on-board hydrogen storage system controller (9) is made to enter an inactive state. When entering the inactive state, the on-board hydrogen storage system controller (9) does not perform control actions, and the control actions include at least message reception, message transmission and fault diagnosis.

2. The control method for the on-board hydrogen storage system according to claim 1, characterized in that, The control method further includes: When the acquired hydrogen cylinder pressure signal is not less than the first preset pressure threshold and the acquired pipe pressure signal is not less than the second pressure threshold, the on-board hydrogen storage system controller (9) is put into normal operation.

3. The control method for the on-board hydrogen storage system according to claim 1, characterized in that: The hydrogen cylinder pressure signal is obtained through the first pressure sensor on the hydrogen supply pipeline (11), and the pipeline pressure signal is obtained through the second pressure sensor on the hydrogen supply pipeline (11). The first pressure sensor is located on the inlet side of the pressure reducing device on the hydrogen supply pipeline (11), and the second pressure sensor is located on the outlet side of the pressure reducing device.

4. The control method for the on-board hydrogen storage system according to claim 1, characterized in that: The first preset pressure threshold is 10 MPa, and the second preset pressure threshold is 2.5 MPa.

5. The control method for the on-board hydrogen storage system according to any one of claims 1 to 4, characterized in that, The control method further includes: When the on-board hydrogen storage system controller (9) enters the inactive state, the vehicle controller (10) allows the vehicle to drive under the power of the on-board power battery pack.

6. A control device for an on-board hydrogen storage system, characterized in that: The control device includes an acquisition module (100), a comparison module (200), and an enable control module (400); The acquisition module (100) is used to acquire the hydrogen cylinder pressure signal in the on-board hydrogen storage system and the pipe pressure signal on the hydrogen inlet side of the fuel cell stack (2) when the vehicle is off the production line and the on-board hydrogen storage system controller (9) receives the wake-up signal. The comparison module (200) is used to compare the acquired hydrogen cylinder pressure signal with a first preset pressure threshold, and to compare the acquired pipe pressure signal with a second pressure threshold. The enabling control module (400) is used to cause the on-board hydrogen storage system controller (9) to enter an inactive state when the hydrogen cylinder pressure signal is less than a first preset pressure threshold and / or the pipe pressure signal is less than a second pressure threshold. When entering the inactive state, the on-board hydrogen storage system controller (9) does not perform control actions, and the control actions include at least message reception, message transmission and fault diagnosis.

7. The control device for the on-board hydrogen storage system according to claim 6, characterized in that: The enabling control module (400) is also used to enable the on-board hydrogen storage system controller (9) to enter normal working state when the hydrogen cylinder pressure signal is not less than the first preset pressure threshold and the pipe pressure signal is not less than the second pressure threshold.

8. The control device for the on-board hydrogen storage system according to claim 6 or 7, characterized in that: The acquisition module includes a first pressure sensor and a second pressure sensor installed on the hydrogen supply pipeline (11). The first pressure sensor is located on the inlet side of the pressure reducing device on the hydrogen supply pipeline (11), and the second pressure sensor is located on the outlet side of the pressure reducing device. The hydrogen cylinder pressure signal is acquired through the first pressure sensor, and the pipeline pressure signal is acquired through the second pressure sensor; and / or, The first preset pressure threshold is 10 MPa, and the second preset pressure threshold is 2.5 MPa.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the control method of the on-board hydrogen storage system according to any one of claims 1-5.

10. A vehicle, characterized in that: The vehicle is equipped with an on-board hydrogen storage system and a control device for the on-board hydrogen storage system as described in any one of claims 6 to 8.

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