Hydrogen filling control method and electronic device after hydrogen storage system is offline

Abstract

The application provides a hydrogenation control method and electronic equipment after a hydrogen storage system is offline, relates to the technical field of hydrogenation control, and comprises the following steps: obtaining a pressure detection value of the hydrogen storage system; if it is detected that the high-pressure pressure of the hydrogen storage system is lower than a first preset pressure threshold and higher than a second preset pressure threshold, and the medium-pressure pressure of the hydrogen storage system is lower than a third preset pressure threshold, then the fault type of the hydrogen storage system is a first fault; if it is detected that the high-pressure pressure of the hydrogen storage system is lower than the second preset pressure threshold and the medium-pressure pressure of the hydrogen storage system is lower than the third preset pressure threshold, then the fault type of the hydrogen storage system is a second fault; if the fault type is the first fault, then the first fault is directly alarmed; if the fault type is the second fault, then no alarm is given when the hydrogenation replacement process of the hydrogen storage system is not completed; and when the hydrogenation replacement process of the hydrogen storage system is completed, the second fault is alarmed, so that the technical problem of low hydrogenation reliability is alleviated.

Description

Technical Field

[0001] This invention relates to the technical field of hydrogen refueling control, and in particular to a hydrogen refueling control method and electronic device after a hydrogen storage system is offline. Background Technology

[0002] After a mainstream hydrogen storage system is installed and rolled off the production line, the hydrogen storage tank replacement and refilling process typically involves masking faults related to low high-pressure and low medium-pressure conditions. After the replacement and refilling process is complete, the fault masking is lifted to restore the control system to normal. However, this fault masking operation can interfere with the normal alarms of some faults that should have been triggered during the replacement and refilling process, thus affecting the reliability of hydrogen refilling. Summary of the Invention

[0003] The purpose of this invention is to provide a hydrogen refueling control method and electronic device after a hydrogen storage system is offline, so as to alleviate the technical problem of low hydrogen refueling reliability.

[0004] In a first aspect, embodiments of the present invention provide a hydrogen refueling control method after a hydrogen storage system is taken offline, comprising:

[0005] Obtain the pressure detection values ​​of the hydrogen storage system, including high pressure and medium pressure;

[0006] If the high pressure of the hydrogen storage system is detected to be lower than the first preset pressure threshold and higher than the second preset pressure threshold, and the medium pressure of the hydrogen storage system is lower than the third preset pressure threshold, then the fault type of the hydrogen storage system is the first fault.

[0007] If the high pressure of the hydrogen storage system is detected to be lower than the second preset pressure threshold and the medium pressure of the hydrogen storage system is lower than the third preset pressure threshold, then the fault type of the hydrogen storage system is the second fault.

[0008] If the fault type is the first fault, then an alarm will be triggered directly for the first fault;

[0009] If the fault type is the second fault, no alarm will be triggered when the hydrogen replacement process of the hydrogen storage system is not completed; when the hydrogen replacement process of the hydrogen storage system is completed, an alarm will be triggered for the second fault.

[0010] In conjunction with the first aspect, embodiments of the present invention provide a first possible implementation of the first aspect, wherein the method further includes:

[0011] If a preset condition is triggered, the counter will perform a counting operation;

[0012] When the counter value is greater than the preset counting threshold, the hydrogen replacement process of the hydrogen storage system is completed.

[0013] In conjunction with the first aspect, this embodiment of the invention provides a second possible implementation of the first aspect, wherein the step of performing a counting operation on the counter if a preset condition is triggered includes:

[0014] If a hydrogen refueling request is received, the high pressure of the hydrogen storage system increases, or the high pressure does not exceed a first preset pressure threshold, then a preset condition is triggered, and the counter value is incremented by one.

[0015] In conjunction with the first aspect, the present invention provides a third possible implementation of the first aspect, wherein the high pressure is the gas pressure inside the gas cylinder in the hydrogen storage system, and the medium pressure is the gas pressure inside the outlet pipeline of the pressure reducing valve in the hydrogen storage system.

[0016] In conjunction with the first aspect, embodiments of the present invention provide a fourth possible implementation of the first aspect, wherein the method further includes:

[0017] The number of times the hydrogen storage system is charged and discharged is recorded based on the counter's count value.

[0018] In conjunction with the first aspect, this invention provides a fifth possible implementation of the first aspect, wherein, before the step of determining the fault type of the hydrogen storage system based on a comparison result between the high pressure and a second preset pressure threshold if the intermediate pressure is lower than a third preset pressure threshold, the method further includes:

[0019] After the hydrogen storage system is installed and rolled off the production line, nitrogen is first filled into the gas cylinder of the hydrogen storage system a preset number of times, and then hydrogen is used to replace the nitrogen in the gas cylinder so that the inside of the hydrogen storage system reaches a pure hydrogen environment.

[0020] In conjunction with the first aspect, embodiments of the present invention provide a sixth possible implementation of the first aspect, wherein the method further includes:

[0021] When the high pressure of the hydrogen storage system exceeds the first preset pressure threshold and a fault is detected in the hydrogen storage system, an alarm is directly triggered to detect the fault in the hydrogen storage system.

[0022] In a second aspect, an embodiment provides an electronic device, including a memory and a processor, wherein the memory stores a computer program that can run on the processor, and the processor executes the computer program to implement the steps of the method described in any of the foregoing embodiments.

[0023] Thirdly, an embodiment provides a machine-readable storage medium storing machine-executable instructions, which, when invoked and executed by a processor, cause the processor to perform the steps of the method described in any of the foregoing embodiments.

[0024] This invention provides a hydrogen refueling control method and electronic device after a hydrogen storage system is offline. By comparing the detected high-pressure and medium-pressure values ​​during the hydrogen refueling process with their respective preset pressure thresholds, the type of current pressure anomaly can be determined. For the second type of fault, which involves abnormal pressure changes that occur during the refueling process, a false alarm might occur if the fault is determined solely by the pressure change. However, this second fault only involves abnormal pressure changes and does not affect hydrogen refueling safety. An alarm is only triggered when the counter reaches a preset threshold, i.e., when the refueling process is completed and the second fault still occurs, to ensure alarm reliability. It should be noted that if an abnormal pressure change occurs after the refueling process is completed, this abnormal pressure change is not due to the refueling process itself and is a fault that affects system safety, requiring an alarm. For the first type of fault, which involves a component malfunction in the hydrogen storage system, this fault affects hydrogen refueling safety. Regardless of whether the refueling process is complete, this fault must be reported directly. Through the above hydrogen refueling control strategy, the goal of avoiding false alarms and promptly reporting faults affecting hydrogen refueling reliability is achieved.

[0025] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 A flowchart of a hydrogen refueling control method after a hydrogen storage system is offline, provided by an embodiment of the present invention;

[0029] Figure 2 A flowchart of another hydrogen refueling control method after the hydrogen storage system is offline, provided by an embodiment of the present invention;

[0030] Figure 3This is a schematic diagram of the functional modules of a hydrogen refueling control device after a hydrogen storage system is offline, provided in an embodiment of the present invention.

[0031] Figure 4 This is a schematic diagram of the hardware architecture of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Hydrogen energy technology is an important direction for technological development, involving a wide range of fields, such as hydrogen storage systems in automobiles (passenger cars, commercial vehicles, special vehicles), ships, bicycles, and many other fields.

[0034] A hydrogen storage system consists of a hydrogen storage cylinder, cylinder valve, high-pressure pipeline, pressure reducing valve, medium-pressure pipeline, hydrogen system controller (HMS), infrared controller, etc.

[0035] During the replacement process, the gas to be replaced is injected into the hydrogen storage system through the hydrogen filling port, and then the gas in the hydrogen storage system is released. Then, it is injected again. The internal gas environment of the hydrogen storage system is completed through multiple injection and venting processes.

[0036] Currently, after the hydrogen storage system is installed and rolled off the production line, the replacement and refilling process of the hydrogen storage system masks related faults such as low high pressure and low medium pressure. High pressure refers to the gas pressure inside the cylinder, and medium pressure refers to the pressure in the pipeline after the pressure reducing valve. That is, from the time the vehicle rolls off the production line until the replacement and refilling, the pressure in the pipeline after the pressure reducing valve (medium pressure) is atmospheric pressure. During the replacement process, high-pressure gas in the cylinder needs to be vented. The high-pressure and medium-pressure sensors built into the hydrogen storage system measure these pressures and compare them with corresponding set thresholds. This can lead to situations where the high-pressure and medium-pressure are lower than the fault threshold. To avoid such false alarms, the hydrogen system controller (HMS) masks these faults, preventing alarms from triggering for medium-pressure and high-pressure faults.

[0037] However, the above-mentioned fault shielding operation will cause some faults that need to be alarmed during the replacement process to fail to be alarmed. For example, if there is a situation where the medium pressure is lower than 1MPa and the remaining hydrogen quantity is not lower than the preset hydrogen quantity threshold of empty, the hydrogen system controller (HMS) should record the pressure and hydrogen quantity values ​​and send an error fault. However, because the fault shielding operation cannot correctly report the error fault, it will affect the reliability judgment of the hydrogen storage system.

[0038] Based on this, the hydrogen refueling control method and electronic device provided in this embodiment of the invention can avoid false alarms while alarming necessary faults that affect system safety, thereby improving the reliability of hydrogen refueling.

[0039] To facilitate understanding of this embodiment, a detailed description of a hydrogen refueling control method for a hydrogen storage system after it is offline, as disclosed in this embodiment of the invention, will be provided first. This method can be applied to intelligent control devices such as fuel cell system controllers and hydrogen storage system controllers.

[0040] Figure 1 This invention provides a flowchart of a hydrogen refueling control method after a hydrogen storage system is offline.

[0041] Reference Figure 1 The method may include the following steps:

[0042] Step S102: Obtain the pressure detection value of the hydrogen storage system.

[0043] The pressure readings include both high pressure and medium pressure.

[0044] Here, the pressure of the hydrogen storage system can be detected by sensing devices, including detecting the high pressure and the medium pressure respectively; the high pressure is the gas pressure in the gas cylinder in the hydrogen storage system, and the medium pressure is the gas pressure in the outlet pipeline of the pressure reducing valve in the hydrogen storage system.

[0045] Step S104: If the high pressure of the hydrogen storage system is detected to be lower than the first preset pressure threshold and higher than the second preset pressure threshold, and the medium pressure of the hydrogen storage system is lower than the third preset pressure threshold, then the fault type of the hydrogen storage system is the first fault.

[0046] It should be noted that if the high pressure of the hydrogen storage system is higher than the second preset pressure threshold, it can be considered that the remaining hydrogen quantity of the hydrogen storage system is not lower than the preset hydrogen quantity threshold, which is the first fault.

[0047] The remaining hydrogen quantity of the hydrogen storage system can be determined by looking up the current hydrogen density value of the hydrogen storage system in a table based on the high pressure collected by the current high pressure sensor and the current temperature. Then, the remaining hydrogen quantity of the hydrogen storage system can be determined based on the container volume of the hydrogen storage system and the hydrogen density value.

[0048] Step S106: If the high pressure of the hydrogen storage system is detected to be lower than the second preset pressure threshold and the medium pressure of the hydrogen storage system is lower than the third preset pressure threshold, then the fault type of the hydrogen storage system is the second fault.

[0049] The fault types include a second fault and a first fault. The second fault can be understood as a fault caused by pressure changes and pressure differences during the hydrogen replacement process. During the hydrogen replacement process, the high and medium pressures fluctuate greatly, sometimes falling below the fault threshold. False alarms caused by such pressure drops below the threshold should be avoided during the replacement process. This second fault only indicates abnormal pressure changes and is a type of false alarm caused by hydrogen replacement; it does not affect the safety of hydrogen replacement and no alarm is needed during the process. It should be noted that if abnormal pressure changes occur after the hydrogen replacement is completed, this abnormal pressure change is not a sign of a fault caused by the hydrogen replacement process. The faults caused by the replacement process are considered to affect system safety and require alarms; in other words, the alarm should be triggered only after the hydrogen replacement process is completed. The first fault can be understood as a fault generated by the components of the hydrogen storage system itself, which affects the reliability of hydrogen refueling. For example, it refers to faults caused by system component failures during normal operation, such as hydrogen storage temperature (hydrogen temperature in the hydrogen cylinder, cylinder valve temperature), high pressure (hydrogen pressure in the hydrogen cylinder, cylinder valve pressure, high pressure pipeline pressure), medium pressure (pressure from the pressure reducing valve to the fuel cell stack), hydrogen leakage, and sensor (sensor malfunction). Such faults must be reported directly regardless of whether they occur during the hydrogen replacement process.

[0050] Step S108: If the fault type is the first fault, then directly issue an alarm for the first fault.

[0051] Step S110: If the fault type is the second fault, no alarm will be triggered when the hydrogen replacement process of the hydrogen storage system is not completed; when the hydrogen replacement process of the hydrogen storage system is completed, an alarm will be triggered for the second fault.

[0052] In this system, the hydrogen replacement process of the hydrogen storage system is completed when the counter value exceeds a preset counting threshold. In some embodiments, the counter is activated if a preset condition is triggered.

[0053] For example, if a hydrogen refueling request is received, the high pressure of the hydrogen storage system increases, and the high pressure does not exceed a first preset pressure threshold, a preset condition is triggered, and the counter value is incremented by one. At this time, the number of times the hydrogen storage system is charged and discharged can be recorded based on the counter value, and it can also be determined whether the hydrogen refueling process of the hydrogen storage system is completed. If the counter value is greater than the preset counting threshold, the hydrogen refueling replacement process of the hydrogen storage system is completed; otherwise, the hydrogen refueling replacement process is not completed.

[0054] As an optional embodiment, the method for determining the upward trend of the high pressure in the hydrogen storage system includes: recording and storing the high pressure value corresponding to the current preset time period collected by the hydrogen storage system, overwriting the high pressure value corresponding to the previous preset time period; comparing the high pressure values ​​corresponding to the initial time point and the end time point in the current preset time period to determine whether the high pressure of the hydrogen storage system is showing an upward trend. For example, if the preset time period is 1 minute, the high pressure value of the hydrogen storage system collected in the current 1 minute is first overwritten with the high pressure value collected in the previous 1 minute, and then the high pressure values ​​corresponding to the 1st second and the 60th second in the current 1 minute are compared; if the high pressure corresponding to the 60th second is greater than the high pressure corresponding to the 1st second, then the high pressure of the hydrogen storage system is showing an upward trend; otherwise, it is not.

[0055] In a preferred embodiment of practical application, by comparing the detected values ​​of high pressure and medium pressure during the hydrogen replacement process of the hydrogen storage system with their respective preset pressure thresholds, it is possible to determine the type of the current pressure anomaly. For the second type of fault, which is a pressure change anomaly that occurs during the hydrogen replacement process and does not affect hydrogen replacement safety, an alarm is only triggered when the counter value reaches the preset counting threshold, i.e., when this type of second fault still occurs after the hydrogen replacement process is completed. For the first type of fault, which is a fault in a component of the hydrogen storage system and will affect hydrogen replacement safety, the fault must be reported directly regardless of whether the hydrogen replacement process is completed. Through the above hydrogen replacement control strategy, the goal of avoiding false alarms and timely reporting of faults that affect the reliability of hydrogen replacement is achieved.

[0056] It should be noted that before step S102, the method further includes:

[0057] Step 1.1): After the hydrogen storage system is installed on the vehicle and rolled off the production line, nitrogen is first filled into the gas cylinder of the hydrogen storage system a preset number of times, and then hydrogen is used to replace the nitrogen in the gas cylinder so that the inside of the hydrogen storage system reaches a pure hydrogen environment.

[0058] Because the hydrogen storage system involves filling and releasing gas during the replacement and refilling of the hydrogen storage cylinder after it is installed on the vehicle, the first few times nitrogen is used to replace the air in the cylinder, and then hydrogen is used to replace the nitrogen in the cylinder, so that the inside of the hydrogen storage system is a pure hydrogen environment.

[0059] In practical applications, when the high pressure of the hydrogen storage system exceeds the first preset pressure threshold and a fault is detected in the hydrogen storage system, an alarm will be directly triggered to detect the fault in the hydrogen storage system.

[0060] If the high pressure of the hydrogen storage system exceeds the first preset pressure threshold, the fault broadcast code will be activated. In this activated state, if there is a fault in the hydrogen storage system, an alarm will be triggered directly, regardless of the fault type of the hydrogen storage system.

[0061] The first preset pressure threshold is a set high-pressure value. If the pressure exceeds this high-pressure value, the direct fault alarm function of the hydrogen storage system is activated. The second preset pressure threshold is a fault high-pressure threshold that is lower than the normal high-pressure pressure. If the pressure is lower than this fault high-pressure threshold, a low high-pressure fault is reported. The third preset pressure threshold is a fault medium-pressure threshold that is lower than the normal medium-pressure pressure. If the pressure is lower than this value, a low medium-pressure fault is reported. The first preset pressure threshold is greater than the second preset pressure threshold.

[0062] This invention adds a counter to the control logic of the hydrogen storage system. During the charging and discharging operation, a hydrogen refueling request is responded to each time a charging operation is performed. Each time a charging operation is performed, the high-pressure value increases. At the same time, a technical judgment is made based on the response to the hydrogen refueling request and the degree of high-pressure increase. If both conditions are met, the counter counts once, avoiding the situation where a response is made but no actual hydrogen refueling operation is performed. The counter reading can also intuitively record the number of charging and discharging operations during the hydrogen replacement process. When the count value recorded by the counter reaches a preset threshold, the hydrogen replacement is considered to be complete.

[0063] Sometimes, excessive gas may be added during the replacement process. To ensure system safety and stability, this embodiment of the invention sets a first preset pressure threshold for high pressure. If the high pressure of the hydrogen storage system exceeds this first preset pressure threshold, the fault alarm function is activated regardless of whether the replacement cycle has been reached. Subsequently, an alarm will be triggered whenever any fault occurs in the hydrogen storage system.

[0064] Here, a fault in the hydrogen storage system can be understood as a situation where the comparison results of parameters such as temperature, high pressure, and medium pressure detected by the corresponding sensors of the hydrogen storage system with their corresponding thresholds do not meet the requirements.

[0065] Simultaneously, when troubleshooting medium-pressure and high-pressure faults, the counter count will be checked. The fault can only be reported normally when the counter count is greater than the preset threshold, so as to avoid false alarms during the replacement process. However, if the medium-pressure is lower than the third preset pressure threshold and the remaining hydrogen quantity is not lower than the preset hydrogen quantity threshold (the high-pressure of the hydrogen storage system is higher than the second preset pressure threshold), the fault can be reported directly without counter checking.

[0066] Figure 2 This invention provides another hydrogen refueling control flowchart after a hydrogen storage system is offline.

[0067] like Figure 2As shown, the hydrogen storage system performs a self-check operation. When a hydrogen refueling request is received, the system outputs 1 in response to the request. If the high-pressure is not greater than the first preset pressure threshold (e.g., 10 MPa), the system outputs 1. If the high-pressure is rising, the system outputs 1. When all three conditions result in an output of 1, the counter increments by 1. If the high-pressure sensor detects a high-pressure value lower than the second preset pressure threshold, and the medium-pressure sensor detects a medium-pressure value lower than the third preset pressure threshold, the system checks whether the counter count is greater than the preset count threshold (i.e., the calibration threshold). If it is, the system reports the fault. Otherwise, no fault is reported. Alternatively, if the medium-pressure is lower than the third preset pressure threshold and the remaining hydrogen quantity is not lower than the preset hydrogen quantity threshold (the high-pressure of the hydrogen storage system is higher than the second preset pressure threshold), the system records the value and sends an error message. The third preset pressure threshold can be selected as 1 MPa, and the preset hydrogen quantity threshold can be understood as the threshold for empty conditions. In addition, if the hydrogen storage system malfunctions when the high pressure exceeds the first preset pressure threshold, a fault report will be issued directly, without considering the fault type.

[0068] In this embodiment of the invention, a counter is added to the control logic of the hydrogen storage system. The counter can not only intuitively record the number of times the gas is charged and discharged, but also avoid false alarms caused by pressure fluctuations during the hydrogen replacement process in the gas cylinder.

[0069] In some embodiments, such as Figure 3 As shown, this embodiment of the invention also provides a hydrogen refueling control device after a hydrogen storage system is offline, comprising:

[0070] The acquisition module acquires the pressure detection values ​​of the hydrogen storage system, including high pressure and medium pressure.

[0071] If the determination module detects that the high pressure of the hydrogen storage system is lower than a first preset pressure threshold and higher than a second preset pressure threshold, and the medium pressure of the hydrogen storage system is lower than a third preset pressure threshold, then the fault type of the hydrogen storage system is a first fault; if the high pressure of the hydrogen storage system is lower than the second preset pressure threshold and the medium pressure of the hydrogen storage system is lower than the third preset pressure threshold, then the fault type of the hydrogen storage system is a second fault.

[0072] The first control module, if the fault type is the first fault, will directly issue an alarm for the first fault;

[0073] The second control module, if the fault type is the second fault, will not alarm when the hydrogen replacement process of the hydrogen storage system is not completed; and will alarm for the second fault when the hydrogen replacement process of the hydrogen storage system is completed.

[0074] In some embodiments, the device is further configured to perform a counting operation on the counter if a preset condition is triggered; when the count value of the counter is greater than a preset counting threshold, the hydrogen replacement process of the hydrogen storage system is completed.

[0075] In some embodiments, the device is further configured to trigger a preset condition and control the counter to increment by one if a hydrogen refueling request is received, the high pressure of the hydrogen storage system increases, or the high pressure does not exceed a first preset pressure threshold.

[0076] In some embodiments, the high pressure is the gas pressure inside the gas cylinder in the hydrogen storage system, and the medium pressure is the gas pressure inside the outlet pipeline of the pressure reducing valve in the hydrogen storage system.

[0077] In some embodiments, the device is further configured to record the number of times the hydrogen storage system is charged and discharged based on the count value of the counter.

[0078] In some embodiments, before determining the fault type of the hydrogen storage system based on the pressure detection value for the hydrogen storage system, the device is further configured to, after the hydrogen storage system is installed and rolled off the production line, first fill the gas cylinder of the hydrogen storage system with nitrogen a preset number of times, and then replace the nitrogen in the gas cylinder with hydrogen, so that the inside of the hydrogen storage system reaches a pure hydrogen environment.

[0079] In some embodiments, the device is further configured to, when it is detected that the high pressure of the hydrogen storage system exceeds a first preset pressure threshold and the hydrogen storage system has a fault, directly issue an alarm for the fault in the hydrogen storage system.

[0080] The present invention provides an embodiment for implementing an electronic device. In this embodiment, the electronic device may be, but is not limited to, a personal computer (PC), a laptop computer, a monitoring device, a server, or other computer device with analysis and processing capabilities.

[0081] As an exemplary embodiment, see [link / example]. Figure 4 The electronic device 110 includes a communication interface 111, a processor 112, a memory 113, and a bus 114. The processor 112, the communication interface 111, and the memory 113 are connected via the bus 114. The memory 113 is used to store a computer program that supports the processor 112 in executing the above-described method. The processor 112 is configured to execute the program stored in the memory 113.

[0082] The machine-readable storage medium mentioned in this article can be any electronic, magnetic, optical, or other physical storage device that can contain or store information such as executable instructions, data, etc. For example, machine-readable storage media can be: RAM (Random Access Memory), volatile memory, non-volatile memory, flash memory, storage drives (such as hard disk drives), any type of storage disk (such as optical discs, DVDs, etc.), or similar storage media, or combinations thereof.

[0083] Non-volatile media can be non-volatile memory, flash memory, storage drives (such as hard disk drives), any type of storage disk (such as optical discs, DVDs, etc.), or similar non-volatile storage media, or combinations thereof.

[0084] It is understood that the specific operation methods of each functional module in this embodiment can be referred to the detailed description of the corresponding steps in the above method embodiment, and will not be repeated here.

[0085] The computer-readable storage medium provided in the embodiments of the present invention stores a computer program. When the computer program code is executed, it can implement the method described in any of the above embodiments. For specific implementation, please refer to the method embodiments, which will not be repeated here.

[0086] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system and apparatus described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0087] Furthermore, in the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0088] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0089] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the scope of the technology disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention.

Claims

1. A hydrogen refilling control method after a hydrogen storage system is decommissioned, characterized by, include: Obtain the pressure detection value of the hydrogen storage system, which includes high pressure and medium pressure; the high pressure is the gas pressure in the gas cylinder of the hydrogen storage system, and the medium pressure is the gas pressure in the outlet pipeline of the pressure reducing valve of the hydrogen storage system. If the high pressure of the hydrogen storage system is detected to be lower than the first preset pressure threshold and higher than the second preset pressure threshold, and the medium pressure of the hydrogen storage system is lower than the third preset pressure threshold, then the fault type of the hydrogen storage system is the first fault. If the high pressure of the hydrogen storage system is detected to be lower than the second preset pressure threshold and the medium pressure of the hydrogen storage system is lower than the third preset pressure threshold, then the fault type of the hydrogen storage system is the second fault. If the fault type is the first fault, then an alarm will be triggered directly for the first fault; If the fault type is the second fault, then if a hydrogen refueling request is received, the high pressure of the hydrogen storage system increases, and the high pressure does not exceed the first preset pressure threshold, then a preset condition is triggered, and the counter value is incremented by one. The number of times the hydrogen storage system is charged and discharged is recorded based on the counter value to determine whether the hydrogen refueling and replacement process of the hydrogen storage system is complete. When the counter value is not greater than the preset counting threshold, the hydrogen refueling and replacement process of the hydrogen storage system is incomplete and no alarm is triggered. When the counter value is greater than the preset counting threshold, the hydrogen refueling and replacement process of the hydrogen storage system is complete, and an alarm is triggered for the second fault.

2. The method of claim 1, wherein, Before the step of determining the fault type of the hydrogen storage system based on the comparison result between the high pressure and the second preset pressure threshold if the intermediate pressure is lower than the third preset pressure threshold, the method further includes: After the hydrogen storage system is installed and rolled off the production line, nitrogen is first filled into the gas cylinder of the hydrogen storage system a preset number of times, and then hydrogen is used to replace the nitrogen in the gas cylinder so that the inside of the hydrogen storage system reaches a pure hydrogen environment.

3. The method of claim 1, wherein, The method further includes: When the high pressure of the hydrogen storage system exceeds the first preset pressure threshold and a fault is detected in the hydrogen storage system, an alarm is directly triggered to detect the fault in the hydrogen storage system.

4. An electronic device, comprising: It includes a memory, a processor, and a program stored in the memory and capable of running on the processor, wherein the processor executes the program to implement the method as described in any one of claims 1 to 3.

5. A computer readable storage medium, characterized in that, The readable storage medium stores a computer program that, when executed, implements the method described in any one of claims 1-3.

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