Hydrogen supply control system and vehicle

Abstract

The present disclosure relates to a hydrogen supply control system and a vehicle, the hydrogen supply control system comprising a first hydrogen storage container, a second hydrogen storage container, a hydrogen supply pipeline and a controller, the hydrogen supply pipeline comprising a high-pressure hydrogen supply pipeline and a low-pressure hydrogen supply pipeline, one end of the low-pressure hydrogen supply pipeline being connected to the high-pressure hydrogen supply pipeline, the other end of the low-pressure hydrogen supply pipeline being connected to the second hydrogen storage container, the high-pressure hydrogen supply pipeline being further connected to the first hydrogen storage container; wherein the controller is configured to control the hydrogen in the first hydrogen storage container and / or the hydrogen supply pipeline to be delivered to the second hydrogen storage container when the vehicle meets a preset condition. In this way, by introducing the second hydrogen storage container into the hydrogen supply control system, the hydrogen discharged from the first hydrogen storage container and / or the hydrogen supply pipeline can be collected by the second hydrogen storage container when the vehicle meets the preset condition, so that the hydrogen that would otherwise be discharged into the atmosphere can be input into the second hydrogen storage container, reducing hydrogen waste and thereby effectively improving the utilization rate of hydrogen.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicles, in particular to a hydrogen supply control system and a vehicle. BACKGROUND

[0002] In the prior art, the vehicle-mounted hydrogen supply system is a core component of the fuel cell system, and its main function is to safely and stably store, regulate and deliver high-purity hydrogen to the fuel cell to support the normal operation of the vehicle.

[0003] However, in the actual use of the vehicle, there are various non-operation conditions, such as long-time parking, system maintenance or fault diagnosis, etc. In these conditions, the vehicle-mounted hydrogen supply system will automatically or manually start the pressure relief program to release the residual hydrogen in the hydrogen storage cylinder or pipeline to the atmospheric environment, thereby causing hydrogen waste. SUMMARY

[0004] To overcome the problem of hydrogen waste in the related art, the present disclosure provides a hydrogen supply control system and a vehicle.

[0005] According to a first aspect of an embodiment of the present disclosure, a hydrogen supply control system is provided, applied to a vehicle, the hydrogen supply control system 100 comprising a first hydrogen storage container 101, a second hydrogen storage container 102, a hydrogen supply pipeline 103 and a controller, the hydrogen supply pipeline 103 comprising a high-pressure hydrogen supply pipeline 1031 and a low-pressure hydrogen supply pipeline 1032, one end of the low-pressure hydrogen supply pipeline 1032 being connected with the high-pressure hydrogen supply pipeline 1031, the other end of the low-pressure hydrogen supply pipeline 1032 being connected with the second hydrogen storage container 102, the high-pressure hydrogen supply pipeline 1031 being further connected with the first hydrogen storage container 101,

[0006] The controller is configured to control the hydrogen in the first hydrogen storage container 101 and / or the hydrogen supply pipeline 103 to be delivered to the second hydrogen storage container 102 when the vehicle meets a preset condition.

[0007] Optionally, the preset condition comprises that the vehicle is in a parking state.

[0008] The controller is configured to, in a case where it is determined that the vehicle is in a parking state, deliver the hydrogen in the hydrogen supply pipeline 103 to the second hydrogen storage container 102, so that a pipeline pressure value of the hydrogen supply pipeline 103 is equal to a container pressure value of the second hydrogen storage container 102, and in a case where it is determined that the vehicle is started, determine whether there is hydrogen leakage in a target component of the hydrogen supply control system 100 based on the pipeline pressure value, the container pressure value, a first actual pressure value of the hydrogen supply pipeline 103 and a second actual pressure value of the second hydrogen storage container 102.

[0009] Optionally, the hydrogen supply control system 100 further comprises a first electronic valve V1, a second electronic valve V2, a first check valve C1, a pressure reducing valve 1033 and a fuel cell 105, the low-pressure hydrogen supply pipeline 1032 comprises a first low-pressure hydrogen supply pipeline G1 and a second low-pressure hydrogen supply pipeline G2,

[0010] The output end of the high-pressure hydrogen supply pipeline 1031 is connected with the input end of the pressure reducing valve 1033 and the first end of the first electronic valve V1; the output end of the pressure reducing valve 1033 is connected with the input end of the first low-pressure hydrogen supply pipeline G1; the second end of the first electronic valve V1 is connected with the input end of the second low-pressure hydrogen supply pipeline G2, and the output end of the second low-pressure hydrogen supply pipeline G2 is connected with the input end of the first check valve C1; the output end of the first check valve C1 is connected with the first end of the second electronic valve V2 and the input end of the second hydrogen storage container 102; the second end of the second electronic valve V2 is connected with the output end of the first low-pressure hydrogen supply pipeline G1 and the fuel cell 105.

[0011] Optionally, the target component at least comprises one of the hydrogen supply pipeline 103, the first hydrogen storage container 101, the second hydrogen storage container 102, the first electronic valve V1, the second electronic valve V2 and the pressure reducing valve 1033.

[0012] Optionally, the pipeline pressure value comprises a first pipeline pressure value of the high-pressure hydrogen supply pipeline 1031 and a second pipeline pressure value of the low-pressure hydrogen supply pipeline 1032, and the actual pressure value comprises a high-pressure actual pressure value of the high-pressure hydrogen supply pipeline 1031, a first low-pressure actual pressure value of the first low-pressure hydrogen supply pipeline G1 and a second low-pressure actual pressure value of the second low-pressure hydrogen supply pipeline G2.

[0013] The controller is configured to determine that the first hydrogen storage container 101, the second electronic valve V2 and the pressure reducing valve 1033 have hydrogen leakage if it is determined that the high-pressure actual pressure value is greater than the first pipeline pressure value and the second actual pressure value is greater than the container pressure value, and that the first hydrogen storage container 101 and the first electronic valve V1 have hydrogen leakage if it is determined that the first low-pressure actual pressure value is greater than the second pipeline pressure value or that the second low-pressure actual pressure value is greater than the second pipeline pressure value; and determine that the high-pressure hydrogen supply pipeline 1031 has hydrogen leakage if it is determined that the high-pressure actual pressure value is less than the first pipeline pressure value.

[0014] Optionally, the controller is further configured to determine that the first low-pressure hydrogen supply pipeline G1 has a hydrogen leakage if the first low-pressure actual pressure value is less than the second pipeline pressure value, determine that the second low-pressure hydrogen supply pipeline G2 has a hydrogen leakage if the second low-pressure actual pressure value is less than the second pipeline pressure value, and determine that the first hydrogen storage container 101 and the pressure reducing valve 1033 have a hydrogen leakage if the first low-pressure actual pressure value is greater than the second pipeline pressure value and the high-pressure actual pressure value is greater than the first pipeline pressure value.

[0015] Optionally, the preset condition comprises that the vehicle is in a parking state.

[0016] The controller is further configured to predict a parking duration of the vehicle if the vehicle is determined to be in a parking state, deliver the hydrogen in the high-pressure hydrogen supply pipeline 1031 to the second hydrogen storage container 102 if the parking duration is less than or equal to a preset duration threshold, and deliver the hydrogen in the low-pressure hydrogen supply pipeline 1032 and the second hydrogen storage container 102 to the fuel cell 105 if the vehicle is determined to be started.

[0017] Optionally, the preset condition comprises that the hydrogen supply control system 100 is under maintenance.

[0018] The controller is configured to deliver the hydrogen in one of the first hydrogen storage container 101, the high-pressure hydrogen supply pipeline 1031, and the low-pressure hydrogen supply pipeline 1032 to the second hydrogen storage container 102 if the hydrogen supply control system 100 is determined to be under maintenance.

[0019] Optionally, the preset condition comprises that a hydrogen pressure value of the low-pressure hydrogen supply pipeline 1032 is greater than or equal to a preset safety threshold.

[0020] The controller is configured to deliver the hydrogen in the low-pressure hydrogen supply pipeline 1032 to the second hydrogen storage container 102 if the hydrogen pressure value is greater than or equal to the preset safety threshold.

[0021] Optionally, the volume of the second hydrogen storage container 102 can be determined by the following method:

[0022] determining a first required volume of the second hydrogen storage container 102 according to the preset volume of the hydrogen supply pipeline 103, a first preset pressure value of the hydrogen supply pipeline 103, and a second preset pressure value of the second hydrogen storage container 102;

[0023] determining a second required volume of the second hydrogen storage container 102 according to a preset starting time of the fuel cell 105 and a preset hydrogen flow corresponding to the starting of the fuel cell 105;

[0024] taking the larger one of the first required volume and the second required volume as the volume of the second hydrogen storage container 102;

[0025] The volume of the second hydrogen storage container 102 is used to control the second actual pressure value of the second hydrogen storage container 102 to be less than or equal to a preset safety pressure threshold, and the amount of hydrogen stored in the second hydrogen storage container 102 is not less than the minimum amount of hydrogen required when the fuel cell engine starts.

[0026] According to a second aspect of the embodiments of the present disclosure, a vehicle is provided, which comprises the hydrogen supply control system provided in the first aspect.

[0027] According to the above technical solution, the hydrogen supply control system comprises a first hydrogen storage container, a second hydrogen storage container, a hydrogen supply pipeline, and a controller. The hydrogen supply pipeline comprises a high-pressure hydrogen supply pipeline and a low-pressure hydrogen supply pipeline. One end of the low-pressure hydrogen supply pipeline is connected to the high-pressure hydrogen supply pipeline, and the other end of the low-pressure hydrogen supply pipeline is connected to the second hydrogen storage container. The high-pressure hydrogen supply pipeline is also connected to the first hydrogen storage container. The controller is configured to control the hydrogen in the first hydrogen storage container and / or the hydrogen supply pipeline to be delivered to the second hydrogen storage container when the vehicle meets a preset condition. In this way, by introducing the second hydrogen storage container into the hydrogen supply control system, the hydrogen discharged from the first hydrogen storage container and / or the hydrogen supply pipeline can be collected by the second hydrogen storage container when the vehicle meets the preset condition, so that the hydrogen that would otherwise be discharged into the atmosphere can be input into the second hydrogen storage container, reducing hydrogen waste and thereby effectively improving the utilization rate of hydrogen.

[0028] Other features and advantages of the present disclosure will be described in detail in the following detailed description section. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, which together with the following detailed description, serve to explain the present disclosure. In the drawings:

[0030] Figure 1 is a schematic diagram of a hydrogen supply control system according to an exemplary embodiment;

[0031] Figure 2 is according to Figure 1 a schematic diagram of a hydrogen supply control system shown in an embodiment;

[0032] Figure 3 is according to Figure 2 a schematic diagram of a hydrogen supply control system shown in an embodiment;

[0033] Figure 4 is a block diagram of a vehicle according to an exemplary embodiment. DETAILED DESCRIPTION

[0034] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0035] Before detailing the specific embodiments of the present disclosure, first, the application scenarios of the present disclosure are described as follows, the present disclosure can be applied to the application scenarios in which the hydrogen supply system of a vehicle provides hydrogen for a fuel cell. In the prior art, the on-board hydrogen supply system is the core component of the fuel cell system, and its main function is to safely and stably store, regulate and deliver high-purity hydrogen to the fuel cell to support the normal operation of the vehicle. However, when the vehicle completes the driving task and is parked for a long time, such as at night, is idle for a long time, or is in a specific environmental condition, the on-board hydrogen supply system will automatically start the pressure relief program. If the ambient temperature of the parked vehicle fluctuates sharply, especially in a high-temperature sunning scene, the hydrogen in the hydrogen storage bottle will cause the pressure to rise sharply due to thermal expansion and contraction, and when the pressure value exceeds the upper limit of the safe working pressure of the hydrogen storage bottle, the safety valve will be opened, and part of the hydrogen will be discharged to the atmosphere until the pressure in the bottle falls within the safe threshold range. Secondly, when the vehicle needs to be checked, repaired or replaced for parts related to the on-board hydrogen supply system, such as hydrogen storage bottles or pressure relief valves, maintenance personnel must first manually start the pressure relief operation to discharge hydrogen into the atmosphere to ensure that there is no high-pressure hydrogen remaining in the hydrogen supply system, and to avoid safety accidents such as hydrogen leakage and spraying during disassembly. This part of the hydrogen cannot be recovered and directly causes resource loss. Therefore, in the current on-board hydrogen supply system, when the vehicle meets the preset conditions, the hydrogen is directly discharged to the atmosphere, which not only causes waste of hydrogen resources, but also increases the operating cost of the vehicle.

[0036] To solve the above problems, the scheme of the present application introduces a second hydrogen storage container in the hydrogen supply control system, which can collect the hydrogen discharged from the first hydrogen storage container and / or the hydrogen supply pipeline when the vehicle meets the preset conditions, so as to input the hydrogen originally discharged into the atmosphere into the second hydrogen storage container, reduce hydrogen waste, and thus effectively improve the utilization rate of hydrogen and further reduce the operating cost of the vehicle.

[0037] Figure 1 This is a schematic diagram of a hydrogen supply control system 100 according to an exemplary embodiment, as shown below. Figure 1 As shown, the hydrogen supply control system 100 includes a first hydrogen storage container 101, a second hydrogen storage container 102, a hydrogen supply pipeline 103, and a controller 104. The hydrogen supply pipeline 103 includes a high-pressure hydrogen supply pipeline 1031 and a low-pressure hydrogen supply pipeline 1032. One end of the low-pressure hydrogen supply pipeline 1032 is connected to the high-pressure hydrogen supply pipeline 1031, and the other end of the low-pressure hydrogen supply pipeline 1032 is connected to the second hydrogen storage container 102. The high-pressure hydrogen supply pipeline 1031 is also connected to the first hydrogen storage container 101.

[0038] The controller is used to control the hydrogen in the first hydrogen storage container 101 and / or the hydrogen supply pipeline 103 to be delivered to the second hydrogen storage container 102 when the vehicle meets the preset conditions.

[0039] The first hydrogen storage container 101 can be a high-pressure hydrogen storage cylinder, and the second hydrogen storage container 102 can be a buffer tank. The high-pressure hydrogen supply pipeline 1031 and the low-pressure hydrogen supply pipeline 1032 are used to carry and transport hydrogen. The output end of the first hydrogen storage container is connected to the input end of the high-pressure hydrogen supply pipeline 1031 to supply hydrogen to the high-pressure hydrogen supply pipeline 1031. The preset conditions can include any one of the following: shutdown state, various maintenance scenarios, and the low-pressure pipeline pressure exceeding the safety threshold during normal hydrogen supply. For any preset condition, the second hydrogen storage container can be used to collect the hydrogen discharged from the hydrogen supply pipeline and / or the first hydrogen storage container.

[0040] The above technical solution, by introducing a second hydrogen storage container into the hydrogen supply control system, can collect hydrogen discharged from the first hydrogen storage container and / or the hydrogen supply pipeline through the second hydrogen storage container when the vehicle meets preset conditions. This allows hydrogen that would otherwise be discharged into the atmosphere to be input into the second hydrogen storage container, reducing hydrogen waste and effectively improving the utilization rate of hydrogen.

[0041] Figure 2 It is based on Figure 1 The illustrated embodiment shows a block diagram of a hydrogen supply control system, as follows: Figure 2 As shown, the hydrogen supply control system 100 further includes a first electronic valve V1, a second electronic valve V2, a first check valve C1, a pressure reducing valve 1033, and a fuel cell 105. The low-pressure hydrogen supply pipeline 1032 includes a first low-pressure hydrogen supply pipeline G1 and a second low-pressure hydrogen supply pipeline G2.

[0042] The output end of the high-pressure hydrogen supply pipeline 1031 is connected with the input end of the pressure reducing valve 1033 and the first end of the first electronic valve V1. The output end of the pressure reducing valve 1033 is connected with the input end of the first low-pressure hydrogen supply pipeline G1. The second end of the first electronic valve V1 is connected with the input end of the second low-pressure hydrogen supply pipeline G2. The output end of the second low-pressure hydrogen supply pipeline G2 is connected with the input end of the first check valve C1. The output end of the first check valve C1 is connected with the first end of the second electronic valve V2 and the input end of the second hydrogen storage container 102. The second end of the second electronic valve V2 is connected with the output end of the first low-pressure hydrogen supply pipeline G1 and the fuel cell 105.

[0043] The above technical solution can clearly construct the topology structure of the entire hydrogen supply control system by completely describing the connection relationship between the key valves in the hydrogen supply system architecture, the first electronic valve, the second electronic valve, the first check valve, the pressure reducing valve and the fuel cell, thereby providing a reliable structural basis for subsequent accurate identification of the target components in the hydrogen supply control system that may occur hydrogen leakage.

[0044] Optionally, still taking Figure 2 For example, the controller is configured to, in a case where it is determined that the vehicle is in a parked state, deliver the hydrogen in the hydrogen supply pipeline 103 to the second hydrogen storage container 102, so that the pipeline pressure value of the hydrogen supply pipeline 103 is equal to the container pressure value of the second hydrogen storage container 102. And when it is determined that the vehicle is started, based on the pipeline pressure value, the container pressure value, the first actual pressure value of the hydrogen supply pipeline 103 and the second actual pressure value of the second hydrogen storage container 102, determine whether the target components of the hydrogen supply control system 100 exist hydrogen leakage.

[0045] The target component includes at least one of the hydrogen supply pipeline 103, the first hydrogen storage container 101, the second hydrogen storage container 102, the first electronic valve V1, the second electronic valve V2, and the pressure reducing valve 1033. The preset condition includes that the vehicle is in a parking state. The first actual pressure value is an actual pressure value of the hydrogen supply pipeline 103 detected in real time when the vehicle starts, and the second actual pressure value is an actual pressure value of the second hydrogen storage container 102 detected in real time when the vehicle starts. The pipeline pressure value includes a first pipeline pressure value of the high-pressure hydrogen supply pipeline 1031, and the first actual pressure value includes a high-pressure actual pressure value of the high-pressure hydrogen supply pipeline 1031. The pipeline pressure value further includes a second pipeline pressure value of the low-pressure hydrogen supply pipeline 1032, and the first actual pressure value further includes a low-pressure actual pressure value of the low-pressure hydrogen supply pipeline 1032. A pressure sensor can be arranged at any position in the high-pressure hydrogen supply pipeline 1031 and the second hydrogen storage container 102. When it is determined that the vehicle is in the parking state, the first pipeline pressure value is obtained by the pressure sensor arranged in the high-pressure hydrogen supply pipeline 1031, and the container pressure value is obtained by the pressure sensor arranged in the second hydrogen storage container 102. When it is determined that the vehicle starts, the high-pressure actual pressure value is obtained by the pressure sensor arranged in the high-pressure hydrogen supply pipeline 1031, and the second actual pressure value is obtained by the pressure sensor arranged in the second hydrogen storage container 102.

[0046] In an embodiment, when it is determined that the vehicle is in the parking state, the hydrogen in the hydrogen supply pipeline 103 is delivered to the second hydrogen storage container 102 to equalize the pipeline pressure value of the hydrogen supply pipeline 103 and the container pressure value of the second hydrogen storage container 102, which can include: when it is determined that the vehicle is in the parking state, predicting the parking duration of the vehicle; if the parking duration is less than or equal to a preset duration threshold, controlling the first electronic valve V1 to open, and the hydrogen in the high-pressure hydrogen supply pipeline is delivered to the second hydrogen storage container 102 through the first electronic valve V1, the second low-pressure hydrogen supply pipeline G2, and the first check valve C1, so that the first pipeline pressure value of the high-pressure hydrogen supply pipeline 1031 is equal to the container pressure value of the second hydrogen storage container 102, and then the first electronic valve V1 is closed.

[0047] In another embodiment, in the case of determining that the vehicle is in a parking state, delivering the hydrogen in the hydrogen supply pipeline 103 to the second hydrogen storage container 102 to equalize the pipeline pressure value of the hydrogen supply pipeline 103 and the container pressure value of the second hydrogen storage container 102 can include: in the case of determining that the vehicle is in a parking state, if the parking duration is greater than a preset duration threshold, controlling the first electronic valve V1 and the second electronic valve V2 to open, the hydrogen in the high-pressure hydrogen supply pipeline being delivered to the second hydrogen storage container 102 through the first electronic valve V1, the first low-pressure hydrogen supply pipeline G1 and the first one-way valve C1, the hydrogen in the first low-pressure hydrogen supply pipeline G1 being delivered to the second hydrogen storage container 102 through the second electronic valve V2, and after the first pipeline pressure value of the high-pressure hydrogen supply pipeline 1031, the second pipeline pressure value of the first low-pressure hydrogen supply pipeline G1 and the second low-pressure hydrogen supply pipeline G2, and the container pressure value of the second hydrogen storage container 102 are equalized, closing the first electronic valve V1 and the second electronic valve V2.

[0048] The above technical solution can deliver the hydrogen in the hydrogen supply pipeline to the second hydrogen storage container in the case of the vehicle being in a parking state, and in the case of determining that the vehicle is started, acquire the first actual pressure value of the hydrogen supply pipeline 103 and the second actual pressure value of the second hydrogen storage container 102, and determine whether there is hydrogen leakage in the target component based on the first actual pressure value, the second actual pressure value, the pipeline pressure value and the container pressure value, so as to timely and accurately determine that there is hydrogen leakage in the target component, thereby effectively improving the safety and reliability of the hydrogen supply control system.

[0049] Optionally, still in the case of determining that the vehicle is in a parking state, delivering the hydrogen in the hydrogen supply pipeline 103 to the second hydrogen storage container 102 to equalize the pipeline pressure value of the hydrogen supply pipeline 103 and the container pressure value of the second hydrogen storage container 102 can include: in the case of determining that the vehicle is in a parking state, if the parking duration is less than or equal to the preset duration threshold, controlling the first electronic valve V1 and the second electronic valve V2 to open, the hydrogen in the high-pressure hydrogen supply pipeline being delivered to the second hydrogen storage container 102 through the first electronic valve V1, the first low-pressure hydrogen supply pipeline G1 and the first one-way valve C1, the hydrogen in the first low-pressure hydrogen supply pipeline G1 being delivered to the second hydrogen storage container 102 through the second electronic valve V2, and after the first pipeline pressure value of the high-pressure hydrogen supply pipeline 1031, the second pipeline pressure value of the first low-pressure hydrogen supply pipeline G1 and the second low-pressure hydrogen supply pipeline G2, and the container pressure value of the second hydrogen storage container 102 are equalized, closing the first electronic valve V1 and the second electronic valve V2. Figure 2For example, the controller is configured to determine that the first hydrogen storage container 101, the second electronic valve V2 and the pressure reducing valve 1033 have a hydrogen leak if it is determined that the high pressure actual pressure value is greater than the first pipeline pressure value and the second actual pressure value is greater than the container pressure value, and it is determined that the first hydrogen storage container 101 and the first electronic valve V1 have a hydrogen leak if it is determined that the first low pressure actual pressure value is greater than the second pipeline pressure value; determine that the high pressure hydrogen supply pipeline 1031 has a hydrogen leak if it is determined that the high pressure actual pressure value is less than the first pipeline pressure value; determine that the first low pressure hydrogen supply pipeline G1 has a hydrogen leak if it is determined that the first low pressure actual pressure value is less than the second pipeline pressure value; determine that the second low pressure hydrogen supply pipeline G2 has a hydrogen leak if it is determined that the second low pressure actual pressure value is less than the second pipeline pressure value; and determine that the first hydrogen storage container 101 and the pressure reducing valve 1033 have a hydrogen leak if it is determined that the first low pressure actual pressure value is greater than the second pipeline pressure value and the high pressure actual pressure value is greater than the first pipeline pressure value.

[0050] The pipeline pressure value includes the first pipeline pressure value of the high pressure hydrogen supply pipeline 1031, and the first actual pressure value includes the high pressure actual pressure value of the high pressure hydrogen supply pipeline 1031.

[0051] Example 1: The controller is further configured to determine that the hydrogen supply control system does not have a hydrogen leak if it is determined that the second low pressure actual pressure value and the first low pressure actual pressure value are equal to the second pipeline pressure value, if it is determined that the high pressure actual pressure value is equal to the first pipeline pressure value and the second actual pressure value is equal to the container pressure value.

[0052] Example 2: The controller is further configured to determine that the high pressure hydrogen supply pipeline 1031 has a hydrogen leak if it is determined that the second low pressure actual pressure value and the first low pressure actual pressure value are equal to the second pipeline pressure value, if it is determined that the high pressure actual pressure value is less than the first pipeline pressure value and the second actual pressure value is equal to the container pressure value.

[0053] Example 3: The controller is further configured to determine that the second hydrogen storage container 102 has a hydrogen leak if it is determined that the second low pressure actual pressure value and the first low pressure actual pressure value are equal to the second pipeline pressure value, if it is determined that the second actual pressure value is less than the container pressure value and the high pressure actual pressure value is equal to the first pipeline pressure value.

[0054] Example 4: the controller is further configured to, in a case where the first low-pressure actual pressure value is determined to be less than the second pipeline pressure value, determine that the first low-pressure hydrogen supply pipeline G1 has a hydrogen leakage if it is determined that the high-pressure actual pressure value is equal to the first pipeline pressure value, the second actual pressure value is equal to the container pressure value, and the second low-pressure actual pressure value is equal to the second pipeline pressure value.

[0055] Example 5: the controller is further configured to, in a case where the second low-pressure actual pressure value is determined to be less than the second pipeline pressure value, determine that the second low-pressure hydrogen supply pipeline G2 has a hydrogen leakage if it is determined that the high-pressure actual pressure value is equal to the first pipeline pressure value, the second actual pressure value is equal to the container pressure value, and the first low-pressure actual pressure value is equal to the second pipeline pressure value.

[0056] Example 6: the controller is further configured to, in a case where the high-pressure actual pressure value is determined to be greater than the first pipeline pressure value and the second actual pressure value is determined to be greater than the container pressure value, determine that the first hydrogen storage container 101, the second electronic valve V2, and the pressure reducing valve 1033 have a hydrogen leakage if it is determined that the first low-pressure actual pressure value is greater than the second pipeline pressure value and the second low-pressure actual pressure value is equal to the second pipeline pressure value.

[0057] Example 7: the controller is further configured to, in a case where the high-pressure actual pressure value is determined to be greater than the first pipeline pressure value and the second actual pressure value is determined to be greater than the container pressure value, determine that the first hydrogen storage container 101 and the first electronic valve V1 have a hydrogen leakage if it is determined that the first low-pressure actual pressure value is equal to the second pipeline pressure value and the second low-pressure actual pressure value is greater than the second pipeline pressure value.

[0058] Example 8: the controller is further configured to, in a case where the first low-pressure actual pressure value is determined to be greater than the second pipeline pressure value and the high-pressure actual pressure value is determined to be greater than the first pipeline pressure value, determine that the first hydrogen storage container 101 and the pressure reducing valve 1033 have a hydrogen leakage if it is determined that the second actual pressure value is equal to the container pressure value and the second low-pressure actual pressure value is equal to the second pipeline pressure value.

[0059] The above technical solutions can determine whether a target component has a hydrogen leakage based on the first actual pressure value, the second actual pressure value, the pipeline pressure value, and the container pressure value, can timely and accurately determine that there is a hydrogen leakage in the target component, and thus can effectively improve the safety and reliability of the hydrogen supply control system.

[0060] Figure 3 is a schematic diagram of a hydrogen supply control system according to an embodiment shown in Figure 2 as shown in the schematic diagram of a hydrogen supply control system according to an embodiment shown inFigure 3 As shown, the hydrogen supply control system can further include a second check valve C2, a first safety valve S1, a second safety valve S2, a low pressure ejector 106, a needle valve 107, a hydrogen filling port FR, a filter FIL, a third check valve CV, an excess flow valve EFV, a valve at the bottle mouth VA, a valve at the bottle tail PRD01, and a vent port 108. The valve at the bottle mouth VA further includes a high pressure valve HV, a third safety valve CSV, and a thermal plug TPRD. An input end of the second check valve C2 is connected with an output end of the second hydrogen storage container 102, an output end of the second check valve C2 is connected with the low pressure ejector 106 and one end of the second safety valve S2, the other end of the second safety valve S2 is connected with an output end of the valve at the bottle tail PRD01 and an output end of the needle valve 107. One end of the first safety valve S1 is connected with an output end of the pressure reducing valve 1033, the other end of the first safety valve S1 is connected with an input end of the first check valve C1. An input end of the low pressure ejector 106 is further connected with an input end of the needle valve 107, a second end of the second electronic valve V2, and an output end of the first low pressure hydrogen supply pipeline G1. An output end of the hydrogen filling port FR is connected with an input end of the filter FIL, an output end of the filter FIL is connected with the third check valve CV, an output end of the third check valve CV is connected with an input end of the high pressure hydrogen supply pipeline 1031 and a first end of the excess flow valve EFV, a second end of the excess flow valve EFV is connected with a first end of the valve at the bottle mouth VA, a second end of the valve at the bottle mouth VA is connected with one end of the first hydrogen storage container 101, a second end of the first hydrogen storage container 101 is connected with one end of the valve at the bottle tail PRD01, a second end of the valve at the bottle tail PRD01 is connected with the needle valve 107, and an output end of the needle valve 107 is further connected with the vent port 108.

[0061] The needle valve 107 is connected with the first low pressure hydrogen supply pipeline G1 and the vent port 108, for controlling the speed of hydrogen released from the hydrogen supply control system 100 to the atmosphere. The vent port 108 is used for releasing hydrogen in the hydrogen supply control system 100 to the atmosphere. The low pressure ejector 106 is used for transporting hydrogen in the second hydrogen storage container 102, the first low pressure hydrogen supply pipeline G1 or the second low pressure hydrogen supply pipeline G2 to the fuel cell 105.

[0062] In the hydrogenation mode, hydrogen is added to the first hydrogen storage container 101 through the hydrogen inlet FR, the filter FIL, the third one-way valve CV, the overflow valve EFV and the bottle valve VA in sequence, while the first electronic valve V1 and the second electronic valve V2 are both in the closed state. The internal state of the first hydrogen storage container 101 is monitored in real time by the bottle valve VA pressure and temperature sensor. If the monitored bottle temperature exceeds the set protection value, the hot melt plug TPRD in the bottle valve VA will melt, and the hydrogen will be directly discharged into the atmosphere through the exhaust port 108. In the hydrogen replacement mode, hydrogen is added to the first hydrogen storage container 101 through the hydrogen inlet FR, the filter FIL, the third one-way valve CV, the overflow valve EFV and the bottle valve VA in sequence until the set pressure value 3-5 MPa is reached, and then stopped. The first electronic valve V1, the second electronic valve V2 and the pressure reducing valve 1033 are opened, and the high-pressure hydrogen in the first hydrogen storage container 101 is directly discharged into the atmosphere through the needle valve 107. The cycle is operated 3-5 times to maintain the purity of hydrogen.

[0063] The above technical scheme can clearly construct the topological structure of the entire hydrogen supply control system by completely describing the connection relationship between the key valve components in the hydrogen supply system architecture, thereby providing a reliable structural basis for subsequent control of the hydrogen in the first hydrogen storage container and / or the hydrogen supply pipeline to be delivered to the second hydrogen storage container when the vehicle meets the preset condition, and starting the fuel cell using the hydrogen in the second hydrogen storage container to improve the hydrogen utilization rate.

[0064] Optionally, for example, the preset condition includes that the vehicle is in a parked state; and the controller is configured to control the hydrogen in the high-pressure hydrogen supply pipeline 1031 to be delivered to the second hydrogen storage container 102, or control the hydrogen in the high-pressure hydrogen supply pipeline 1031 and the low-pressure hydrogen supply pipeline 1032 to be delivered to the second hydrogen storage container 102 when the vehicle is in the parked state. Figure 3

[0065] The controller is further configured to predict the parking duration of the vehicle when it is determined that the vehicle is in the parked state. If the parking duration is less than or equal to a preset duration threshold, the hydrogen in the high-pressure hydrogen supply pipeline 1031 is delivered to the second hydrogen storage container 102, and when it is determined that the vehicle is started, the hydrogen in the low-pressure hydrogen supply pipeline 1032 and the second hydrogen storage container 102 is delivered to the fuel cell 105. If the parking duration is greater than the preset duration threshold, the hydrogen in the high-pressure hydrogen supply pipeline 1031 and the low-pressure hydrogen supply pipeline 1032 is delivered to the second hydrogen storage container 102, and when it is determined that the vehicle is started, the hydrogen in the second hydrogen storage container 102 is delivered to the fuel cell 105.

[0066] ​The preset time threshold can be 30 minutes, or other time length. In the case of determining that the vehicle is in the parking state, the parking time can be predicted by the machine learning model. In the case of determining that the vehicle is in the parking state, the related content of predicting the parking time of the vehicle is more, which is not limited in the present application.

[0067] If the parking time is less than or equal to the preset time threshold, the first electronic valve V1 is controlled to open, and the hydrogen in the high-pressure hydrogen supply pipeline 1031 is transported to the second hydrogen storage container 102 through the first electronic valve V1 and the first check valve C1. In the case of determining that the vehicle starts, if it is determined that the second actual pressure value is less than the first low-pressure actual pressure value, the hydrogen in the first low-pressure hydrogen supply pipeline G1 is transported to the fuel cell 105 through the low-pressure ejector 106, and the hydrogen in the second hydrogen storage container 102 is transported to the fuel cell 105 through the second check valve C2 and the low-pressure ejector 106, which can provide sufficient hydrogen for the fuel cell 105 in the case that the pressure of the high-pressure hydrogen supply pipeline 1031 is not established, so that the engine of the fuel cell 105 quickly reaches idle speed.

[0068] If the parking time is greater than the preset time threshold, the first electronic valve V1 and the second electronic valve V2 are controlled to open, and the hydrogen in the high-pressure hydrogen supply pipeline 1031 is transported to the second hydrogen storage container 102 through the first electronic valve V1 and the first check valve C1. And the hydrogen in the low-pressure hydrogen supply pipeline 1032 is transported to the second hydrogen storage container 102 through the second electronic valve V2.

[0069] In the case of determining that the vehicle starts, the first electronic valve V1 is controlled to close, and the second electronic valve V2 is controlled to open, and the hydrogen in the second hydrogen storage container 102 is transported to the fuel cell 105 through the second electronic valve V2 and / or the second check valve C2. In the case of determining that the high-pressure actual pressure value is greater than or equal to the preset pressure threshold, the first electronic valve V1 and the second electronic valve V2 are controlled to close, the hydrogen in the high-pressure hydrogen supply pipeline 1031 is transported to the fuel cell 105 through the pressure reducing valve 1033 and the low-pressure hydrogen supply pipeline 1032, and the hydrogen in the second hydrogen storage container 102 is transported to the fuel cell 105 through the second check valve C2.

[0070] It should be noted that when the hydrogen pressure value in the second hydrogen storage container 102 is greater than the hydrogen pressure value in the first low-pressure hydrogen supply pipeline G1, the hydrogen in the second hydrogen storage container 102 can be delivered to the fuel cell 105 through the second electronic valve V2, the first low-pressure hydrogen supply pipeline G1 and the low-pressure ejector 106. When the hydrogen pressure value in the second hydrogen storage container 102 is less than the hydrogen pressure value in the first low-pressure hydrogen supply pipeline G1, the hydrogen in the second hydrogen storage container 102 can be delivered to the fuel cell 105 through the second check valve C2 and the low-pressure ejector 106.

[0071] The above technical solution, when the vehicle is in a parked state, controls the delivery of hydrogen in the high-pressure hydrogen supply pipeline to the second hydrogen storage container, or controls the delivery of hydrogen in the high-pressure hydrogen supply pipeline and the low-pressure hydrogen supply pipeline to the second hydrogen storage container. When it is determined that the vehicle is started, the hydrogen in the low-pressure hydrogen supply pipeline and the second hydrogen storage container is delivered to the fuel cell, or the hydrogen in the second hydrogen storage container is delivered to the fuel cell, which can effectively improve the starting time of the vehicle and effectively improve the hydrogen utilization rate of the hydrogen supply control system.

[0072] Optionally, the preset condition includes maintenance of the hydrogen supply control system 100.

[0073] The controller is configured to control the delivery of hydrogen in one of the first hydrogen storage container 101, the high-pressure hydrogen supply pipeline 1031 and the low-pressure hydrogen supply pipeline 1032 to the second hydrogen storage container 102 when it is determined that the hydrogen supply control system 100 is maintained.

[0074] When it is determined that the high-pressure hydrogen supply pipeline 1031 fails, the first electronic valve V1 is controlled to be opened, the second electronic valve V2 is controlled to be closed, and the hydrogen in the high-pressure hydrogen supply pipeline 1031 enters the second hydrogen storage container 102 through the first electronic valve V1 and the first check valve C1. When the pressure value in the high-pressure hydrogen supply pipeline 1031 is equal to the pressure value in the second hydrogen storage container 102, the first electronic valve V1 is controlled to be closed, and at this time the hydrogen pressure in the high-pressure hydrogen supply pipeline 1031 is reduced to below the safety pressure threshold. When the first low-pressure hydrogen supply pipeline G1 fails, the second electronic valve V2 is controlled to be opened, the first electronic valve V1 is controlled to be closed, and the hydrogen in the first low-pressure hydrogen supply pipeline G1 is delivered to the second hydrogen storage container 102 through the second electronic valve V2. When it is determined that the pressure value in the low-pressure hydrogen supply pipeline 1032 is equal to the pressure value in the second hydrogen storage container 102, the second electronic valve V2 is controlled to be closed, and at this time the hydrogen pressure in the first low-pressure hydrogen supply pipeline G1 is reduced to below the safety pressure threshold.

[0075] The above technical solution can ensure that the hydrogen pressure in the high-pressure hydrogen supply pipeline and the first low-pressure hydrogen supply pipeline is reduced to below the safety pressure threshold during maintenance, thereby effectively improving the safety of maintenance. In addition, the above technical solution can also reduce the waste of hydrogen in the high-pressure hydrogen supply pipeline or the first low-pressure hydrogen supply pipeline during maintenance, thereby effectively improving the utilization rate of hydrogen.

[0076] Optionally, the preset condition includes that the hydrogen pressure value of the low-pressure hydrogen supply pipeline 1032 is greater than or equal to a preset safety threshold.

[0077] The controller is configured to control the hydrogen in the low-pressure hydrogen supply pipeline 1032 to be delivered to the second hydrogen storage container 102 when the hydrogen pressure value is greater than or equal to the preset safety threshold.

[0078] The safety pressure threshold can be set to the pressure value when the fuel cell 105 engine has the lowest power, for example, 0.5 MPa. When the hydrogen pressure value of the first low-pressure hydrogen supply pipeline G1 is greater than or equal to the preset safety threshold, the hydrogen in the first low-pressure hydrogen supply pipeline G1 is delivered to the second hydrogen storage container through the first safety valve S1 and the first check valve C1. The pressure threshold of the first safety valve S1 is greater than the safety pressure threshold, for example, 1.25 times the safety pressure threshold.

[0079] In addition, when the actual hydrogen pressure value in the second hydrogen storage container 102 is greater than or equal to the preset safety pressure threshold, the hydrogen in the second hydrogen storage container 102 can be directly discharged into the atmosphere through the second check valve C2, the second safety valve S2, and the exhaust port 108.

[0080] The above technical solution can effectively avoid the problem of high-pressure impact of hydrogen in the high-pressure hydrogen supply pipeline on the low-pressure pipeline when delivering the hydrogen in the high-pressure hydrogen supply pipeline to the second hydrogen storage container through the first electronic valve and the first check valve, thereby further improving the safety and reliability of the hydrogen supply control system.

[0081] Optionally, the volume of the second hydrogen storage container 102 can be determined in the following manner:

[0082] The first required volume of the second hydrogen storage container 102 is determined according to the preset volume of the hydrogen supply pipeline 103, the first preset pressure value of the hydrogen supply pipeline 103, and the second preset pressure value of the second hydrogen storage container 102. The second required volume of the second hydrogen storage container 102 is determined according to the preset starting time of the fuel cell 105 and the preset hydrogen flow corresponding to the starting of the fuel cell 105. The larger one of the first required volume and the second required volume is taken as the volume of the second hydrogen storage container 102.

[0083] The volume of the second hydrogen storage container 102 is used to control the second actual pressure value of the second hydrogen storage container 102 to be less than or equal to a preset safety pressure threshold, and the amount of hydrogen stored in the second hydrogen storage container 102 is not less than the minimum amount of gas required when the fuel cell engine starts.

[0084] The product of the first low-pressure preset pressure value of the low-pressure hydrogen supply pipeline 1032 and the first preset volume of the low-pressure hydrogen supply pipeline 1032 and the ratio of the second preset pressure value of the second hydrogen storage container 102 are taken as the first low-pressure volume corresponding to the second hydrogen storage container 102. The product of the first high-pressure preset pressure value of the high-pressure hydrogen supply pipeline 1031 and the second preset volume of the high-pressure hydrogen supply pipeline 1031 and the ratio of the second preset pressure value of the second hydrogen storage container 102 are taken as the first high-pressure volume corresponding to the second hydrogen storage container 102. The sum of the first low-pressure volume and the first high-pressure volume is taken as the first required volume. The first low-pressure preset pressure value can be set as the hydrogen pressure value at the pressure reducing valve, for example, 1.6 MPa. The first high-pressure preset pressure value can be set to be consistent with the hydrogen pressure value in the hydrogen storage bottle. The second preset pressure value can be set as the hydrogen pressure value corresponding to the minimum power of the fuel cell engine, for example, 0.5 MPa. The first preset volume can be determined by the inner diameter of the low-pressure hydrogen supply pipeline and the length of the low-pressure hydrogen supply pipeline used. The second preset volume can be determined by the inner diameter of the high-pressure hydrogen supply pipeline and the length of the high-pressure hydrogen supply pipeline used. The product of the preset starting time of the fuel cell 105 and the preset hydrogen flow corresponding to the starting of the fuel cell engine at the minimum power is taken as the minimum hydrogen mass required when the fuel cell starts. The ratio of the minimum hydrogen mass to the hydrogen density obtained by the density lookup table method is taken as the second required volume. The larger one of the first required volume and the second required volume is taken as the volume of the second hydrogen storage container 102.

[0085] The above technical solution can not only ensure that the container pressure value in the second hydrogen storage container does not exceed the preset safety pressure threshold, effectively improving the safety of the hydrogen supply control system, but also can always have sufficient hydrogen in the second hydrogen storage container to ensure the next vehicle rapid start by delivering the hydrogen in the low-pressure hydrogen supply pipeline to the second hydrogen storage container through the first safety valve and the first one-way valve. In addition, by delivering the hydrogen in the second hydrogen storage container to the fuel cell, the hydrogen utilization rate of the hydrogen supply control system can also be effectively improved.

[0086] Figure 4 is a block diagram of a vehicle 400 according to an exemplary embodiment, as shown in Figure 4 The vehicle includes the above hydrogen supply control system 100.

[0087] The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept range of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection range of the present disclosure.

[0088] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0089] In addition, various different embodiments of the present disclosure can also be combined in any manner as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.

Claims

1. A hydrogen supply control system, characterized in that, Applied to vehicles, the hydrogen supply control system (100) includes a first hydrogen storage container (101), a second hydrogen storage container (102), a hydrogen supply pipeline (103), and a controller. The hydrogen supply pipeline (103) includes a high-pressure hydrogen supply pipeline (1031) and a low-pressure hydrogen supply pipeline (1032). One end of the low-pressure hydrogen supply pipeline (1032) is connected to the high-pressure hydrogen supply pipeline (1031), and the other end of the low-pressure hydrogen supply pipeline (1032) is connected to the second hydrogen storage container (102). The high-pressure hydrogen supply pipeline (1031) is also connected to the first hydrogen storage container (101). The controller is used to control the hydrogen in the first hydrogen storage container (101) and / or the hydrogen supply pipeline (103) to be delivered to the second hydrogen storage container (102) when the vehicle meets preset conditions; the preset conditions include the vehicle being in a parked state; The controller is configured to, when determining that the vehicle is in a parked state, deliver hydrogen from the hydrogen supply line (103) to the second hydrogen storage container (102) so that the pressure value of the hydrogen supply line (103) is equal to the pressure value of the container in the second hydrogen storage container (102), and when determining that the vehicle is started, determine whether there is hydrogen leakage in the target component of the hydrogen supply control system (100) based on the pressure value of the line, the pressure value of the container, the first actual pressure value of the hydrogen supply line (103) and the second actual pressure value of the second hydrogen storage container (102).

2. The hydrogen supply control system (100) according to claim 1, characterized in that, The hydrogen supply control system (100) further includes a first electronic valve (V1), a second electronic valve (V2), a first check valve (C1), a pressure reducing valve (1033), and a fuel cell (105). The low-pressure hydrogen supply pipeline (1032) includes a first low-pressure hydrogen supply pipeline (G1) and a second low-pressure hydrogen supply pipeline (G2). The output end of the high-pressure hydrogen supply line (1031) is connected to the input end of the pressure reducing valve (1033) and the first end of the first electronic valve (V1); the output end of the pressure reducing valve (1033) is connected to the input end of the first low-pressure hydrogen supply line (G1); the second end of the first electronic valve (V1) is connected to the input end of the second low-pressure hydrogen supply line (G2), and the output end of the second low-pressure hydrogen supply line (G2) is connected to the input end of the first one-way valve (C1); the output end of the first one-way valve (C1) is connected to the first end of the second electronic valve (V2) and the input end of the second hydrogen storage container (102); the second end of the second electronic valve (V2) is connected to the output end of the first low-pressure hydrogen supply line (G1) and the fuel cell (105).

3. The hydrogen supply control system (100) according to claim 2, characterized in that, The target component includes at least one of the hydrogen supply pipeline (103), the first hydrogen storage container (101), the second hydrogen storage container (102), the first electronic valve (V1), the second electronic valve (V2), and the pressure reducing valve (1033).

4. The hydrogen supply control system (100) according to claim 3, characterized in that, The pipeline pressure value includes the first pipeline pressure value of the high-pressure hydrogen supply pipeline (1031) and the second pipeline pressure value of the low-pressure hydrogen supply pipeline (1032). The first actual pressure value includes the high-pressure actual pressure value of the high-pressure hydrogen supply pipeline (1031), the first low-pressure actual pressure value of the first low-pressure hydrogen supply pipeline (G1), and the second low-pressure actual pressure value of the second low-pressure hydrogen supply pipeline (G2). The controller is configured to determine that there is a hydrogen leak in the first hydrogen storage container (101), the second electronic valve (V2), and the pressure reducing valve (1033) when the actual high pressure value is greater than the first pipeline pressure value and the second actual pressure value is greater than the container pressure value; if the actual low pressure value is greater than the second pipeline pressure value, it is configured to determine that there is a hydrogen leak in the first hydrogen storage container (101) and the first electronic valve (V1); and if the actual high pressure value is less than the first pipeline pressure value, it is configured to determine that there is a hydrogen leak in the high-pressure hydrogen supply pipeline (1031).

5. The hydrogen supply control system (100) according to claim 4, characterized in that, The controller is further configured to determine that there is a hydrogen leak in the first low-pressure hydrogen supply line (G1) when the first low-pressure actual pressure value is less than the second pipeline pressure value; to determine that there is a hydrogen leak in the second low-pressure hydrogen supply line (G2) when the second low-pressure actual pressure value is less than the second pipeline pressure value; and to determine that there is a hydrogen leak in the first hydrogen storage container (101) and the pressure reducing valve (1033) when the first low-pressure actual pressure value is greater than the second pipeline pressure value and the high-pressure actual pressure value is greater than the first pipeline pressure value.

6. The hydrogen supply control system (100) according to claim 1, characterized in that, The preset conditions include the vehicle being in a parked state, and the hydrogen supply control system (100) further includes a fuel cell (105), which is connected to the second hydrogen storage container (102) and the low-pressure hydrogen supply pipeline (1032). The controller is further configured to predict the parking duration of the vehicle when it is determined that the vehicle is in a parked state; if the parking duration is less than or equal to a preset duration threshold, the controller delivers hydrogen from the high-pressure hydrogen supply line (1031) to the second hydrogen storage container (102), and when it is determined that the vehicle is started, the controller delivers hydrogen from the low-pressure hydrogen supply line (1032) and the second hydrogen storage container (102) to the fuel cell (105); if the parking duration is greater than the preset duration threshold, the controller delivers hydrogen from the high-pressure hydrogen supply line (1031) and the low-pressure hydrogen supply line (1032) to the second hydrogen storage container (102), and when it is determined that the vehicle is started, the controller delivers hydrogen from the second hydrogen storage container (102) to the fuel cell (105).

7. The hydrogen supply control system (100) according to claim 1, characterized in that, The preset conditions include overhauling the hydrogen supply control system (100); The controller is configured to, when it is determined that the hydrogen supply control system (100) is to be under maintenance, control the delivery of hydrogen from one of the first hydrogen storage container (101), the high-pressure hydrogen supply line (1031), and the low-pressure hydrogen supply line (1032) to the second hydrogen storage container (102).

8. The hydrogen supply control system (100) according to claim 1, characterized in that, The preset conditions include that the hydrogen pressure value of the low-pressure hydrogen supply pipeline (1032) is greater than or equal to a preset safety threshold. The controller is used to control the hydrogen in the low-pressure hydrogen supply pipeline (1032) to be delivered to the second hydrogen storage container (102) when the hydrogen pressure value is greater than or equal to a preset safety threshold.

9. The hydrogen supply control system (100) according to any one of claims 1-8, characterized in that, The volume of the second hydrogen storage container (102) can be determined in the following way: The first required volume of the second hydrogen storage container (102) is determined based on the preset volume of the hydrogen supply pipeline (103), the first preset pressure value of the hydrogen supply pipeline (103), and the second preset pressure value of the second hydrogen storage container (102). The second required volume of the second hydrogen storage container (102) is determined based on the preset start-up time of the fuel cell (105) and the preset hydrogen flow rate corresponding to the start-up of the fuel cell (105); The larger of the first required volume and the second required volume shall be used as the volume of the second hydrogen storage container (102); The volume of the second hydrogen storage container (102) is used to control the second actual pressure value of the second hydrogen storage container (102) to be less than or equal to a preset safety pressure threshold, and the amount of hydrogen stored in the second hydrogen storage container (102) is not less than the minimum amount of gas required when the fuel cell engine starts.

10. A vehicle, characterized in that, Includes the hydrogen supply control system (100) as described in any one of claims 1-9.

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