A fuel cell vehicle hydrogen system maintenance prompting device and method

Abstract

The application relates to the technical field of electronic digital data processing, in particular to a fuel cell vehicle hydrogen system maintenance prompting method, which comprises the following steps: acquiring actual operation parameters of the hydrogen system; determining a corresponding safety level of the hydrogen system based on the number of the actual operation parameters being greater than corresponding preset target operation parameters; when the safety level is medium or low, corresponding maintenance prompting is sent; and the above steps are repeated after the maintenance prompting is cleared. Through the method, a driver of the fuel cell vehicle can identify the use state of the hydrogen system in time, so that the hydrogen system can be maintained in time, driving safety is improved, and the waste of maintenance cost is avoided.

Description

Technical Field

[0001] This application relates to the field of electronic digital data processing technology, and in particular to a maintenance reminder device and method for a hydrogen system of a fuel cell vehicle. Background Technology

[0002] Compared to traditional vehicles, fuel cell vehicles have unique maintenance requirements for their hydrogen systems. Due to their special internal structure and equipment, hydrogen systems require regular maintenance. If a hydrogen system enters its maintenance cycle too early, it will increase maintenance costs and waste resources. If a hydrogen system misses its normal maintenance cycle, problems such as wear on the hydrogen refueling port seal leading to hydrogen leakage or inability to refuel the hydrogen tank may occur, creating driving safety hazards. Summary of the Invention

[0003] To enable drivers of fuel cell vehicles to promptly identify the status of the hydrogen system and perform timely maintenance, thereby improving driving safety and avoiding wasted maintenance costs,

[0004] In a first aspect, this application provides a maintenance reminder device for the hydrogen system of a fuel cell vehicle, the device comprising a hydrogen refueling system controller, a hydrogen refueling switch, a temperature sensor, a vehicle controller, a hydrogen cylinder, and a display unit;

[0005] The hydrogen system controller is used to connect to the hydrogen refueling switch, temperature sensor, and vehicle controller via signals to obtain the actual operating parameters of the hydrogen system.

[0006] Based on the number of actual operating parameters that exceed the corresponding preset target operating parameters, the safety level of the hydrogen system is determined; when the safety level is medium or low, a corresponding maintenance reminder is sent.

[0007] And after the maintenance reminder is cleared, control the device to repeat the above steps.

[0008] Furthermore, the hydrogen refueling switch is used to control the operation or sleep mode of the hydrogen system controller, and to send the cable signal status information of the hydrogen refueling switch to the hydrogen system controller to determine whether the hydrogen system is performing hydrogen refueling;

[0009] The temperature sensor is used to collect and send the temperature information inside the hydrogen cylinder to the hydrogen system controller to determine whether the hydrogen system has completed hydrogen refueling.

[0010] The vehicle controller is used to collect and send actual mileage information to the hydrogen system controller, and to receive maintenance reminder signals from the hydrogen system controller and forward them to the display unit.

[0011] Secondly, this application provides a method for providing maintenance reminders for the hydrogen system of a fuel cell vehicle, the method comprising,

[0012] Obtain the actual operating parameters of the hydrogen system;

[0013] Based on the number of actual operating parameters that exceed the corresponding preset target operating parameters, the safety level of the hydrogen system is determined; when the safety level is medium or low, a corresponding maintenance reminder is sent.

[0014] After the maintenance reminder is cleared, repeat the above steps.

[0015] Furthermore, the actual operating parameters include the actual number of hydrogen refuelings of the hydrogen system, the actual driving mileage of the hydrogen system, and the actual usage time of the hydrogen system.

[0016] Furthermore, obtaining the actual number of hydrogenation operations includes...

[0017] Obtain the temperature difference of the hydrogen cylinder at the start and end of hydrogen refueling;

[0018] Determine whether the cable signal of the hydrogen refueling switch has changed, and whether the temperature difference is greater than or equal to a preset temperature threshold.

[0019] If the judgment result is yes, add 1 additional actual hydrogen addition.

[0020] Furthermore, obtaining the actual mileage includes obtaining the actual mileage through the vehicle controller;

[0021] The acquisition of the actual usage time includes acquiring the actual usage time of the hydrogen system through the hydrogen system controller.

[0022] Furthermore, determining the safety level of the hydrogen system based on the number of actual operating parameters that exceed the corresponding preset target operating parameters includes:

[0023] Determine whether the actual number of hydrogen refuelings exceeds the target number of hydrogen refuelings; determine whether the actual driving mileage exceeds the target driving mileage; determine whether the actual usage time exceeds the target usage time;

[0024] When the number of "yes" results is less than or equal to 1, the security level is high.

[0025] When the number of "yes" results is 2, the security level is medium.

[0026] When the number of "yes" results is 3, the security level is low.

[0027] Furthermore, the method also includes,

[0028] Obtain the actual working time of the hydrogen cylinder;

[0029] Calculate and obtain the target hydrogen cylinder maintenance reminder time based on the actual working time of the hydrogen cylinder;

[0030] Send a hydrogen cylinder maintenance reminder at the target hydrogen cylinder maintenance reminder time;

[0031] Repeat the above steps after the hydrogen cylinder maintenance reminder has been cleared.

[0032] Thirdly, this application provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the method described in any of the second aspects.

[0033] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the steps of the method described in any of the second aspects.

[0034] Beneficial effects:

[0035] This application provides a method for providing maintenance reminders for the hydrogen system of a fuel cell vehicle. The method involves acquiring the actual operating parameters of the hydrogen system; determining the safety level of the hydrogen system based on the number of actual operating parameters exceeding a preset target operating parameter; and sending a corresponding maintenance reminder when the safety level is medium or low. After the maintenance reminder is cleared, the above steps are repeated. Using this method, the driver of a fuel cell vehicle can promptly identify the usage status of the hydrogen system and perform timely maintenance, improving driving safety without wasting maintenance costs. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the device structure provided in Embodiment 1 of this application;

[0038] Figure 2 This is a schematic diagram of the method flow provided in Embodiment 2 of this application;

[0039] Figure 3 This is a schematic diagram of the electronic structure device in Embodiment 3 of this application. Detailed Implementation

[0040] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0041] Example 1

[0042] Due to their unique internal structure and equipment, fuel cell vehicles require regular maintenance of their hydrogen systems. Overly frequent maintenance increases costs and wastes resources; conversely, missing normal maintenance cycles can lead to excessive wear on the refueling port seals, causing hydrogen leaks and preventing proper refueling of the hydrogen tank, posing serious safety hazards.

[0043] Therefore, in response to the above issues, and in conjunction with the appendix Figure 1 Example 1 provides a hydrogen system maintenance reminder device for a fuel cell vehicle. The device includes a hydrogen refueling system controller, a hydrogen refueling switch, a temperature sensor, a vehicle controller, a hydrogen cylinder, and a display unit.

[0044] in,

[0045] The hydrogen system controller is used to connect the hydrogen refueling switch, temperature sensor, and vehicle controller via signals to obtain the actual operating parameters of the hydrogen system.

[0046] Based on the number of actual operating parameters that exceed the corresponding preset target operating parameters, the safety level of the hydrogen system is determined; when the safety level is medium or low, a corresponding maintenance reminder is sent.

[0047] And after the maintenance reminder is cleared, control the device to repeat the above steps;

[0048] The hydrogen refueling switch is used to control the operation or sleep mode of the hydrogen system controller, and to send the cable signal status information of the hydrogen refueling switch to the hydrogen system controller to determine whether the hydrogen system is performing hydrogen refueling.

[0049] The temperature sensor is used to collect and send the temperature information inside the hydrogen cylinder to the hydrogen system controller to determine whether the hydrogen system has completed hydrogen refueling.

[0050] The vehicle controller is used to collect and send actual mileage information to the hydrogen system controller, and to receive maintenance reminder signals from the hydrogen system controller and forward them to the display unit.

[0051] The following is a detailed description of the prompting device provided in Specific Embodiment 1:

[0052] HMS hydrogen system controller,

[0053] The system connects to the hydrogen refueling switch via a wireless signal, executes the run command or sleep command sent by the hydrogen system controller, and determines whether the hydrogen system is refueling by judging whether the cable signal status information of the hydrogen refueling switch has changed.

[0054] The system receives temperature information from the temperature sensor via wireless signal. This temperature information includes the temperature TS of the hydrogen cylinder at the start of hydrogen refueling and the temperature TF at the end of hydrogen refueling in hydrogen refueling mode. Since the temperature difference between the start and end of hydrogen refueling exceeds a preset temperature threshold T0, the system determines whether hydrogen refueling has been completed by calculating the temperature difference ΔT between TF and TS and comparing whether ΔT is greater than or equal to the preset temperature threshold T0.

[0055] If the signal of the hydrogen refueling switch cable changes, and if the temperature difference ΔT is greater than or equal to the preset temperature threshold T0, the HMS hydrogen system controller records one actual hydrogen refueling count.

[0056] The HMS hydrogen system controller interacts with the VCU vehicle controller via wireless signals to receive actual mileage; the HMS hydrogen system controller also obtains the actual usage time of the hydrogen system in real time.

[0057] By calculating the actual number of hydrogen refuelings, actual mileage, and actual usage time of the hydrogen system, the number of actual operating parameters that exceed the corresponding preset target operating parameters is calculated. Based on the calculation results, the safety level of the hydrogen system is determined. When the safety level is medium or low, a corresponding maintenance reminder is sent.

[0058] And after the maintenance reminder is cleared, control the device to repeat the above steps;

[0059] The HMS hydrogen system controller is also used for,

[0060] Information is exchanged with the infrared communication module via infrared signals, and the working status of the hydrogen filling port is determined by the infrared signals sent by the infrared communication module.

[0061] The bottle valve is opened and closed via wireless signal control.

[0062] The apparatus provided in Example 1 also includes,

[0063] The hydrogen refueling switch is connected to the HMS hydrogen system controller via a cable, and controls the HMS hydrogen system controller to enter working mode or sleep mode in hydrogen refueling mode.

[0064] A temperature sensor, fixedly connected to the bottle valve, is built into the hydrogen cylinder and powered by the HMS hydrogen system controller. It is used to collect and send the temperature information inside the hydrogen cylinder to the hydrogen system controller.

[0065] The infrared communication module is fixed on the hydrogen filling port and interacts with the HMS hydrogen system controller and the hydrogen dispenser.

[0066] The VCU (Vehicle Control Unit) is used to collect and send actual mileage information to the HMS (Hydrogen System Controller), receive maintenance reminder signals from the HMS, and forward them to the instrument panel for display.

[0067] The hydrogen filling port is mechanically connected to the hydrogen filling gun and the hydrogen pipeline. It is used to receive the hydrogen added from the hydrogen filling gun and store the hydrogen into the hydrogen cylinder through the hydrogen pipeline.

[0068] A bottle valve, located at the opening of the hydrogen cylinder, is powered by the HMS hydrogen system controller and is used to open and close the opening of the hydrogen cylinder and send the number of times the hydrogen cylinder opening and closing is performed to the HMS hydrogen system controller.

[0069] The instrument panel is connected to the VCU vehicle controller via wireless signal to receive and display maintenance reminder signals forwarded by the VCU vehicle controller.

[0070] Hydrogen cylinders are used to store hydrogen gas and are marked with the production date of the hydrogen cylinders.

[0071] Example 2

[0072] Based on the same inventive concept, combined with the appendix Figure 2 Example 2 provides a method for reminding users of the hydrogen system maintenance of a fuel cell vehicle. By accurately judging the working status of the hydrogen system, the current safety level of the hydrogen system is determined, and the judgment result is sent to the user to remind the user of the current working status of the hydrogen system and the accurate maintenance time. This improves driving safety while avoiding increased maintenance costs and waste of resources due to frequent maintenance.

[0073] The method includes the following steps:

[0074] S1, Obtain the actual operating parameters of the hydrogen system;

[0075] S2, based on the number of actual operating parameters that are greater than the corresponding preset target operating parameters, determine the safety level of the hydrogen system, and when the safety level is medium or low, send the corresponding maintenance reminder;

[0076] S3, after the maintenance reminder is cleared, repeat the above steps.

[0077] Analysis of the working process and maintenance data of the hydrogen system in fuel cell vehicles reveals that, with increasing operating time, wear of the hydrogen refueling port seal and aging of the hydrogen tank are the main causes of hydrogen system failures and the need for maintenance. Example 1 uses the actual number of hydrogen refuelings, actual mileage, and actual usage time as actual operating parameters to study the hydrogen system's performance status.

[0078] The specific implementation method is as follows:

[0079] S1, Obtain the actual operating parameters of the hydrogen system;

[0080] S11, Obtain the actual number of hydrogen additions to the hydrogen system, including

[0081] S111, in hydrogen refueling mode, obtain the temperature difference ΔT of the hydrogen cylinder at the start and end of hydrogen refueling;

[0082] S112, determine whether the hydrogen refueling switch cable signal has changed, and whether the temperature difference ΔT is greater than or equal to the preset temperature threshold T0;

[0083] S113, if the judgment result is yes, add 1 actual hydrogen addition count;

[0084] After the first delivery of the fuel cell vehicle, the driver operates the hydrogen refueling switch, and the vehicle enters hydrogen refueling mode and completes the refueling. At this time, the signal of the hydrogen refueling switch cable changes. The temperature values ​​TS and TF in the hydrogen tank at the start and end of hydrogen refueling are obtained by the temperature sensor built into the hydrogen tank, and TS and TF are transmitted to the HMS hydrogen system controller. The HMS hydrogen system controller calculates the temperature difference ΔT. When the hydrogen refueling switch cable signal changes and the temperature difference ΔT ≥ T0 (preset temperature threshold), the HMS hydrogen system controller records one actual hydrogen refueling, the vehicle completes the i-th hydrogen refueling, and the HMS hydrogen system controller records that the i-th hydrogen refueling has been completed.

[0085] S12, obtain the actual driving mileage of the hydrogen system, including obtaining the actual driving mileage n in real time through the VCU vehicle controller;

[0086] S13, obtain the actual usage time of the hydrogen system, including obtaining the actual usage time of the hydrogen system in real time through the HMS hydrogen system controller;

[0087] S2, based on the number of actual operating parameters that are greater than the corresponding preset target operating parameters, determine the safety level of the hydrogen system, and when the safety level is medium or low, send the corresponding maintenance reminder;

[0088] When the safety level is high, it means that the hydrogen system is currently performing well and requires no maintenance or maintenance reminders.

[0089] When the safety level is medium, it means that the current performance of the hydrogen system is average, and there is a safety risk if it is used continuously. Timely maintenance is required, such as replacing the hydrogen filling port seal. Timely maintenance reminders will be sent through the HMS hydrogen system controller.

[0090] When the safety level is low, it indicates that the current performance of the hydrogen system is poor and that some internal components of the hydrogen system are damaged, such as the hydrogen filling port seal ring being worn. Immediate maintenance is required, and an immediate maintenance reminder is sent through the HMS hydrogen system controller.

[0091] The specific steps include,

[0092] S21,

[0093] Determine whether the actual number of hydrogen additions is greater than the target number of hydrogen additions;

[0094] Determine whether the actual mileage traveled is greater than the target mileage;

[0095] Determine whether the actual usage time exceeds the target usage time;

[0096] S22,

[0097] When the number of "yes" results is less than or equal to 1, the security level is high, and no prompt needs to be sent.

[0098] When the number of "yes" results is 2, the safety level is medium, and a timely maintenance reminder is sent.

[0099] When the number of "yes" results is 3, the safety level is low, and an immediate maintenance reminder is sent.

[0100] Specific implementation methods include:

[0101] After the vehicle assembly is completed and the HMS hydrogen system controller is woken up upon initial power-on, the HMS hydrogen system controller records the system initialization time t0.

[0102] For the above three actual operating parameters, the following judgments are made according to the maintenance conditions:

[0103] I. Determine whether the actual number of hydrogen additions satisfies i≥A (A is the target number of hydrogen additions, which is an array, such as 50, 100, 150, etc.)

[0104] II. Determine whether the actual mileage satisfies n≥B (B is the set target mileage, which is also an array, such as 10000, 20000, 30000, etc.)

[0105] III. Determine whether the current system time satisfies t-t0≥C years (C is the set target usage time, and C is also an array, such as 1, 2, 3, etc.);

[0106] IV. For the above three conditions, if only one condition is met and the other two are not met, no replacement reminder for the sealing ring will be given; if any two conditions are met, the HMS hydrogen system controller will issue a maintenance reminder: "Please replace the hydrogen filling port sealing ring in time"; if all three conditions are met, the HMS hydrogen system controller will issue a maintenance reminder: "Please replace the hydrogen filling port sealing ring immediately, as there may be a risk of hydrogen leakage."

[0107] The HMS hydrogen system controller sends the above prompts and displays them on the instrument panel, thus reminding the user to perform maintenance in a timely manner based on the assessment results.

[0108] S3, After the maintenance reminder is cleared, repeat the above steps.

[0109] After the driver completes maintenance and clears the maintenance information via the instrument panel, the HMS hydrogen system controller updates the target values ​​for actual hydrogen refueling times, target mileage, and target usage time to the second set of target values, and then restarts monitoring until the set target values ​​are achieved, at which point it will start to prompt the driver, and so on in a loop.

[0110] The method provided in Example 1 also includes issuing a hydrogen cylinder maintenance reminder when the actual working time of the hydrogen cylinder exceeds the target working time of the hydrogen cylinder; including

[0111] F1, obtain the actual working time of the hydrogen cylinder;

[0112] After the fuel cell vehicle is installed, the HMS hydrogen system controller records the hydrogen cylinder production time through the flashing software; by calculating the current time and the hydrogen cylinder production time, the actual working time of the hydrogen cylinder is obtained.

[0113] F2, based on the actual working time of the hydrogen cylinder, calculates and obtains the target hydrogen cylinder maintenance reminder time;

[0114] The HMS hydrogen system controller calculates the inspection period of hydrogen cylinders based on the actual working time of the hydrogen system and the production time of the hydrogen cylinders. In order to avoid missing the maintenance cycle of the hydrogen system, the three months before the inspection time are used as the target hydrogen cylinder maintenance reminder time.

[0115] F3, send a hydrogen cylinder maintenance reminder at the target hydrogen cylinder maintenance reminder time;

[0116] When the system time reaches the target hydrogen cylinder maintenance reminder time, the HMS hydrogen system controller sends a hydrogen cylinder inspection reminder to the instrument panel through the VCU vehicle controller and displays it on the instrument panel;

[0117] F4. After the hydrogen cylinder maintenance reminder is cleared, repeat the above steps.

[0118] After the driver completes maintenance, the maintenance information is cleared via the instrument panel. The HMS hydrogen system controller then updates the hydrogen cylinder inspection time to the inspection time after each cleaning, and then restarts monitoring until it prompts the driver three months before the target date, and this cycle repeats.

[0119] The method provided in this application achieves the following beneficial effects:

[0120] 1) By automatically monitoring the actual number of hydrogen refuelings, driving mileage, and system time through the HMS hydrogen system controller, regular reminders for the maintenance of the hydrogen refueling port seal ring are provided to prevent drivers from forgetting to use it and causing the seal ring to fail, leading to safety issues such as hydrogen leakage during refueling;

[0121] 2) By comparing the current system time and hydrogen cylinder production time through the HMS hydrogen system controller, and according to the set scheduled inspection cycle requirements, timely reminders are given before the hydrogen cylinder scheduled inspection cycle expires, so as to avoid the driver being unable to refuel the vehicle due to forgetting to miss the scheduled inspection cycle.

[0122] Example 3

[0123] Based on the same inventive concept, Embodiment 3 of this application provides an electronic device, as shown in the appendix. Figure 3 As shown, it includes a memory 304, a processor 302, and a computer program stored in the memory 304 and executable on the processor 302. When the processor 302 executes the program, it implements the steps of the above-described fuel cell vehicle hydrogen system maintenance reminder device and method.

[0124] Among them, Figure 3 In this document, a bus architecture (represented by bus 300) is used. Bus 300 may include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 302 and memory represented by memory 304. Bus 300 may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 306 provides an interface between bus 300 and receiver 301 and transmitter 303. Receiver 301 and transmitter 303 may be the same element, i.e., a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 302 is responsible for managing bus 300 and general processing, while memory 304 can be used to store data used by processor 302 during operation.

[0125] Example 4

[0126] Based on the same inventive concept, Embodiment 4 of the present invention provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the above-described fuel cell vehicle hydrogen system maintenance reminder device and method.

[0127] The algorithms and displays provided herein are not inherently related to any particular computer, virtual system, or other device. Various general-purpose systems can also be used in conjunction with the teachings herein. The required structure for constructing such systems is apparent from the above description. Furthermore, this invention is not directed to any particular programming language. It should be understood that the contents of the invention described herein can be implemented using various programming languages, and the above description of specific languages ​​is for the purpose of disclosing the best mode of implementation of the invention.

[0128] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0129] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, inventive aspects lie in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into this detailed description, wherein each claim itself is a separate embodiment of the invention.

[0130] Those skilled in the art will understand that modules in the device of the embodiments can be adaptively changed and placed in one or more devices different from that embodiment. Modules, units, or components in the embodiments can be combined into a single module, unit, or component, and further, they can be divided into multiple sub-modules, sub-units, or sub-components. Except where at least some of such features and / or processes or units are mutually exclusive, any combination can be used to combine all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all processes or units of any method or device so disclosed. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature that serves the same, equivalent, or similar purpose.

[0131] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.

[0132] The various component embodiments of the present invention can be implemented in hardware, or as software modules running on one or more processors, or a combination thereof. Those skilled in the art will understand that microprocessors or digital signal processors (DSPs) can be used in practice to implement some or all of the functions of some or all of the components in the thermal simulation apparatus for aluminum substrates or electronic devices according to embodiments of the present invention. The present invention can also be implemented as a device or apparatus program (e.g., a computer program and computer program product) for performing part or all of the methods described herein. Such programs implementing the present invention can be stored on a computer-readable medium or can be in the form of one or more signals. Such signals can be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

[0133] The above descriptions are merely embodiments of this application. Commonly known structures and characteristics of the solutions are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the filing date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that time. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this application. These should also be considered within the scope of protection of this application, and will not affect the effectiveness of the implementation of this application or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A method for providing maintenance reminders for the hydrogen system of a fuel cell vehicle, characterized in that, The method is applied to a maintenance reminder device for a hydrogen system in a fuel cell vehicle. The device includes a hydrogen refueling system controller, a hydrogen refueling switch, a temperature sensor, a vehicle controller, a hydrogen cylinder, and a display unit. The method includes: The hydrogen system controller is connected to the hydrogen refueling switch, temperature sensor, and vehicle controller via signals to obtain the actual operating parameters of the hydrogen system. The actual operating parameters include the actual number of hydrogen refuelings, the actual driving mileage, and the actual usage time of the hydrogen system. Based on the number of actual operating parameters that exceed the corresponding preset target operating parameters, the safety level of the hydrogen system is determined; when the safety level is medium or low, a corresponding maintenance reminder is sent. And after the maintenance reminder is cleared, control the device to repeat the above steps; The step of determining the safety level of the hydrogen system based on the number of actual operating parameters that are greater than the corresponding preset target operating parameters includes: Determine whether the actual number of hydrogen refuelings exceeds the target number of hydrogen refuelings; determine whether the actual driving mileage exceeds the target driving mileage; determine whether the actual usage time exceeds the target usage time; When the number of "yes" results is less than or equal to 1, the security level is high. When the number of "yes" results is 2, the security level is medium. When the number of "yes" results is 3, the security level is low.

2. The method for providing maintenance reminders for the hydrogen system of a fuel cell vehicle as described in claim 1, characterized in that, The hydrogen refueling switch is controlled to send cable signal status information of the hydrogen refueling switch to the hydrogen system controller to determine whether the hydrogen system is performing hydrogen refueling; The temperature sensor is controlled to collect and send the temperature information inside the hydrogen cylinder to the hydrogen system controller to determine whether the hydrogen system has completed hydrogen refueling. The system controls the vehicle controller to collect and send actual mileage information to the hydrogen system controller, and receives maintenance reminder signals from the hydrogen system controller and forwards them to the display unit.

3. The method for providing maintenance reminders for the hydrogen system of a fuel cell vehicle as described in claim 1, characterized in that, The process of obtaining the actual number of hydrogenation additions includes: Obtain the temperature difference of the hydrogen cylinder at the start and end of hydrogen refueling; Determine whether the cable signal of the hydrogen refueling switch has changed, and whether the temperature difference is greater than or equal to a preset temperature threshold. If the judgment result is yes, add 1 additional actual hydrogen addition.

4. The method for providing maintenance reminders for the hydrogen system of a fuel cell vehicle as described in claim 1, characterized in that, The process of obtaining the actual mileage includes obtaining the actual mileage through the vehicle controller; The acquisition of the actual usage time includes acquiring the actual usage time of the hydrogen system through the hydrogen system controller.

5. A method for providing maintenance reminders for the hydrogen system of a fuel cell vehicle as described in claim 1, characterized in that, The method also includes, Obtain the actual working time of the hydrogen cylinder; Calculate and obtain the target hydrogen cylinder maintenance reminder time based on the actual working time of the hydrogen cylinder; Send a hydrogen cylinder maintenance reminder at the target hydrogen cylinder maintenance reminder time; Repeat the above steps after the hydrogen cylinder maintenance reminder has been cleared.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method as described in any one of claims 1-5.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps of the method as described in any one of claims 1-5.

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