A risk early warning method and device for a hydrogen storage bottle group for vehicles

Abstract

The application provides a risk early warning method and device for a hydrogen storage bottle group for vehicles. The method fuses multi-dimensional state information of the hydrogen storage bottle group, uniformly and correlatively analyzes hydrogen remaining amount, thermal state, safety state, health state, and residual life information, and determines corresponding risk early warning information, thereby comprehensively characterizing the operation state of the hydrogen storage bottle group, and improving the integrity and accuracy of risk identification. Meanwhile, the application performs dynamic analysis based on real-time collected state information, so that risk judgment is more timely, effectively reduces the lag and misjudgment problems caused by traditional single threshold or offline analysis methods, and further generates predicted risk early warning information by introducing historical state information to construct a time sequence, combining a trained prediction model to predict future states, improving risk early warning from passive response to active prediction, thereby enhancing the foresight and active safety capability of the system.

Description

Technical Field

[0001] This application relates to the field of clean energy vehicle technology, and more specifically, to a risk warning method and device for a vehicle-mounted hydrogen storage cylinder assembly. Background Technology

[0002] In the actual operation of vehicle-mounted hydrogen storage tank assemblies, their safety and reliability highly depend on real-time monitoring and risk assessment of the tank status. Existing technologies typically monitor the hydrogen storage tank assemblies using single parameters such as pressure and temperature, triggering alarms or protective measures when these parameters exceed preset thresholds. However, this approach has significant limitations.

[0003] First, existing monitoring methods mostly focus on single or a few key physical quantities (such as pressure or temperature), making it difficult to comprehensively reflect the overall status of hydrogen storage tank groups. Second, existing risk assessment methods are mostly based on static thresholds or empirical rules, which are typical post-event response mechanisms, only issuing alarms when abnormal situations have occurred or are about to occur. Therefore, a solution with broad coverage and the ability to provide early warnings is needed. Summary of the Invention

[0004] In view of this, this application provides a risk warning method and device for vehicle hydrogen storage cylinder groups to solve the technical problems of the small coverage of risk warning in the prior art and the inability to provide early warning.

[0005] Specifically, this application is implemented through the following technical solution: Firstly, this application provides a risk warning method for vehicle-mounted hydrogen storage cylinder packs, including: For any hydrogen storage cylinder in the vehicle hydrogen storage cylinder group, obtain the status information of the hydrogen storage cylinder; the status information includes one or more of the following: hydrogen remaining amount, thermal state, safety state, hydrogen cylinder remaining life, and health state. For any of the aforementioned status information, based on the status information, determine the corresponding risk warning information; The risk warning information is sent to the vehicle control module; the vehicle control module is used to control the vehicle based on the risk warning information. A state time series is constructed based on the historical state information of the hydrogen storage cylinder, and a trained state information prediction model is used to determine the predicted state information of the hydrogen storage cylinder at future times based on the state time series. Based on the predicted status information, the predicted risk warning information corresponding to the status information is determined, and the predicted risk warning information is sent to the vehicle control module.

[0006] In some implementations, the state information of the hydrogen storage cylinder is determined through the following steps: Acquire calibration data, hydrogen filling and discharging data, and sensor data collected by the corresponding sensors of the hydrogen storage cylinder; the sensor data includes one or more of the following: real-time pressure inside the hydrogen storage cylinder, real-time temperature inside the hydrogen storage cylinder, impact force of the hydrogen storage cylinder, and gas composition outside the hydrogen storage cylinder. Based on the calibration data, the hydrogen filling and discharging data, and the sensor data, the status information corresponding to the hydrogen storage cylinder is determined.

[0007] In some implementations, determining the risk warning information corresponding to the status information based on the status information includes: Based on the type of the status information, determine the status value range corresponding to multiple risk levels; Based on the state value range indicated by the state information, the risk warning information corresponding to the state information is determined.

[0008] In some implementations, when the state information indicates a remaining hydrogen quantity, determining the risk warning information corresponding to the state information based on the state value range indicated by the state information includes: If the status value is less than the first threshold, the risk warning information indicates that an over-discharge audible and visual alarm should be triggered. If the status value is greater than the second threshold, the risk warning information indicates that an overcharge audible and visual alarm should be triggered. If the status value is less than the third threshold, the risk warning information indicates that the load should be cut off; the third threshold is less than the first threshold; the second threshold is greater than the first threshold.

[0009] In some implementations, when the state information is in a hot state, determining the risk warning information corresponding to the state information based on the state value range indicated by the state information includes: If the state value is greater than the fourth threshold, the risk warning information indicates that a high-temperature audible and visual alarm should be triggered to reduce the hydrogen charging and discharging rate. If the status value is greater than the fifth threshold, the risk warning information indicates that an overheating audible and visual alarm will be triggered, and the hydrogen supply will be cut off.

[0010] In some implementations, when the status information is in a safe state, determining the risk warning information corresponding to the status information based on the state value range indicated by the status information includes: If the hydrogen leak status value in the safety status information is greater than the sixth threshold, the risk warning information indicates that at least one of the following should be triggered: triggering a leak audible and visual alarm, activating forced ventilation, or cutting off the hydrogen supply. If the pressure status value in the safety status information is greater than the seventh threshold, the risk warning information indicates that the hydrogen proximity valve of the hydrogen storage cylinder be closed; If the pressure status value in the safety status information is greater than the eighth threshold, the risk warning information indicates that the pressure relief valve should be triggered; the eighth threshold is greater than the seventh threshold. If the collision status value in the safety status information is greater than the ninth threshold, the risk warning information indicates that a system self-test should be triggered. If the collision status value in the safety status information is greater than the tenth threshold, the risk warning information indicates a shutdown prompt and a prompt to check the airtightness.

[0011] In some implementations, when the status information is in a healthy state, determining the risk warning information corresponding to the status information based on the range of status values ​​indicated by the status information includes: If the state value is less than the eleventh threshold, the risk warning information indicates the triggering of periodic physical testing of the hydrogen cylinder to limit the range of hydrogen filling and discharging in the hydrogen storage cylinder. If the status value is less than the twelfth threshold, the risk warning information indicates that hydrogen charging should be disabled; if the eleventh threshold is greater than the twelfth threshold.

[0012] In some implementations, when the status information indicates the remaining lifespan of the hydrogen cylinder, determining the risk warning information corresponding to the status information based on the range of status values ​​indicated by the status information includes: If the status value is less than the thirteenth threshold, the risk warning information indicates a hydrogen cylinder replacement prompt.

[0013] Secondly, this application provides a risk warning device for a vehicle-mounted hydrogen storage cylinder assembly, comprising: The acquisition module is used to acquire the status information of any hydrogen storage cylinder in the vehicle hydrogen storage cylinder group; the status information includes one or more of the following: hydrogen remaining amount, thermal state, safety state, hydrogen cylinder remaining life, and health state. The first determining module is used to determine, based on any one of the aforementioned status information, the risk warning information corresponding to the status information. The first sending module is used to send the risk warning information to the vehicle control module; the vehicle control module is used to control the vehicle based on the risk warning information. The second determining module is used to construct a state time series based on the historical state information of the hydrogen storage cylinder, and use a trained state information prediction model to determine the predicted state information of the hydrogen storage cylinder at future times based on the state time series. The second sending module is used to determine the predicted risk warning information corresponding to the predicted status information based on the predicted status information, and send the predicted risk warning information to the vehicle control module.

[0014] In some implementations, the state information of the hydrogen storage cylinder is determined through the following steps: Acquire calibration data, hydrogen filling and discharging data, and sensor data collected by the corresponding sensors of the hydrogen storage cylinder; the sensor data includes one or more of the following: real-time pressure inside the hydrogen storage cylinder, real-time temperature inside the hydrogen storage cylinder, impact force of the hydrogen storage cylinder, and gas composition outside the hydrogen storage cylinder. Based on the calibration data, the hydrogen filling and discharging data, and the sensor data, the status information corresponding to the hydrogen storage cylinder is determined.

[0015] In some implementations, the first determining module is used to: Based on the type of the status information, determine the status value range corresponding to multiple risk levels; Based on the state value range indicated by the state information, the risk warning information corresponding to the state information is determined.

[0016] In some implementations, when the state information indicates a remaining hydrogen quantity, the first determining module is used to: If the status value is less than the first threshold, the risk warning information indicates that an over-discharge audible and visual alarm should be triggered. If the status value is greater than the second threshold, the risk warning information indicates that an overcharge audible and visual alarm should be triggered. If the status value is less than the third threshold, the risk warning information indicates that the load should be cut off; the third threshold is less than the first threshold; the second threshold is greater than the first threshold.

[0017] In some implementations, when the state information is a thermal state, the first determining module is used to: If the state value is greater than the fourth threshold, the risk warning information indicates that a high-temperature audible and visual alarm should be triggered to reduce the hydrogen charging and discharging rate. If the status value is greater than the fifth threshold, the risk warning information indicates that an overheating audible and visual alarm will be triggered, and the hydrogen supply will be cut off.

[0018] In some implementations, when the status information is a safe state, the first determining module is used to: If the hydrogen leak status value in the safety status information is greater than the sixth threshold, the risk warning information indicates that at least one of the following should be triggered: triggering a leak audible and visual alarm, activating forced ventilation, or cutting off the hydrogen supply. If the pressure status value in the safety status information is greater than the seventh threshold, the risk warning information indicates that the hydrogen proximity valve of the hydrogen storage cylinder be closed; If the pressure status value in the safety status information is greater than the eighth threshold, the risk warning information indicates that the pressure relief valve should be triggered; the eighth threshold is greater than the seventh threshold. If the collision status value in the safety status information is greater than the ninth threshold, the risk warning information indicates that a system self-test should be triggered. If the collision status value in the safety status information is greater than the tenth threshold, the risk warning information indicates a shutdown prompt and a prompt to check the airtightness.

[0019] In some implementations, when the status information is in a healthy state, the first determining module is used to: If the state value is less than the eleventh threshold, the risk warning information indicates the triggering of periodic physical testing of the hydrogen cylinder to limit the range of hydrogen filling and discharging in the hydrogen storage cylinder. If the status value is less than the twelfth threshold, the risk warning information indicates that hydrogen charging should be disabled; if the eleventh threshold is greater than the twelfth threshold.

[0020] In some implementations, when the status information indicates the remaining lifespan of the hydrogen cylinder, the first determining module is used to: If the status value is less than the thirteenth threshold, the risk warning information indicates a hydrogen cylinder replacement prompt.

[0021] Thirdly, this application also provides a computer device, including a processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and the processor is configured to execute the machine-readable instructions stored in the memory, wherein when the machine-readable instructions are executed by the processor, they perform the steps of the first aspect above, or any possible implementation of the first aspect.

[0022] Fourthly, this application also provides a computer-readable storage medium storing a computer program that, when run, performs the steps of the first aspect or any possible implementation thereof.

[0023] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and are not intended to limit the technical solutions of this application.

[0024] The risk warning method and device for vehicle-mounted hydrogen storage cylinder groups provided in this application integrate and process multi-dimensional state information of the hydrogen storage cylinder group, and perform unified correlation analysis on information such as hydrogen remaining quantity, thermal state, safety state, health state, and remaining lifespan, and determine corresponding risk warning information for each, thereby achieving a comprehensive characterization of the operating state of the hydrogen storage cylinder group and improving the completeness and accuracy of risk identification. Simultaneously, this application performs dynamic analysis based on real-time collected state information, making risk judgment more timely and effectively reducing the lag and misjudgment problems caused by traditional methods based on single thresholds or offline analysis. Furthermore, by introducing historical state information to construct a time series and combining it with a trained prediction model to predict future states, it further generates predictive risk warning information, upgrading risk warning from passive response to proactive prediction, thereby enhancing the system's foresight and proactive safety capabilities. In addition, this application transmits risk warning information to the vehicle control module, enabling the vehicle to execute corresponding control strategies according to different risk levels, forming a closed-loop management mechanism combining monitoring, analysis, warning, and control, thereby significantly improving the safety management level and operational reliability of the hydrogen storage cylinder group throughout its entire life cycle. Attached Figure Description

[0025] Figure 1 This is a flowchart illustrating a risk warning method for a vehicle-mounted hydrogen storage cylinder assembly, as shown in an exemplary embodiment of this application; Figure 2 This is a flowchart illustrating a risk warning system for a vehicle-mounted hydrogen storage cylinder assembly, as shown in an exemplary embodiment of this application; Figure 3 This is a schematic diagram of a risk warning device for a vehicle-mounted hydrogen storage cylinder assembly, as illustrated in an exemplary embodiment of this application. Figure 4 This is a schematic diagram of a computer device illustrated in an exemplary embodiment of this application. Detailed Implementation

[0026] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0027] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0028] It should be understood that although the terms first, second, third, etc., may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0029] Research has revealed that existing monitoring methods are mostly focused on single or a few key physical quantities (such as pressure or temperature), making it difficult to comprehensively reflect the overall condition of hydrogen storage tank groups. Secondly, existing risk assessment methods are largely based on static thresholds or empirical rules, representing typical post-event response mechanisms that only issue alarms when an abnormal situation has already occurred or is about to occur.

[0030] In view of this, this application provides a risk warning method and device for vehicle-mounted hydrogen storage cylinder groups. By fusing and processing multi-dimensional state information of the hydrogen storage cylinder group, information such as hydrogen remaining quantity, thermal state, safety state, health state, and remaining lifespan is uniformly correlated and analyzed, and corresponding risk warning information is determined for each. This achieves a comprehensive characterization of the operating status of the hydrogen storage cylinder group, improving the completeness and accuracy of risk identification. At the same time, this application performs dynamic analysis based on real-time collected state information, making risk judgment more timely and effectively reducing the lag and misjudgment problems caused by traditional methods based on single thresholds or offline analysis. By introducing historical state information to construct a time series and combining it with a trained prediction model to predict future states, predictive risk warning information is further generated, upgrading risk warning from passive response to proactive prediction, thereby enhancing the system's foresight and proactive safety capabilities. In addition, this application transmits risk warning information to the vehicle control module, enabling the vehicle to execute corresponding control strategies according to different risk levels, forming a closed-loop management mechanism that combines monitoring, analysis, warning, and control, thereby significantly improving the safety management level and operational reliability of the hydrogen storage cylinder group throughout its entire life cycle.

[0031] The deficiencies of the existing technical solutions are the result of the inventor's practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this application below should be considered as the inventor's contributions to this application.

[0032] To facilitate understanding of this embodiment, the application scenario of the risk warning method for vehicle-mounted hydrogen storage tank groups disclosed in this application embodiment will first be introduced. The executing entity of this risk warning method for vehicle-mounted hydrogen storage tank groups can be a computer device, such as the computing module corresponding to the vehicle-mounted hydrogen storage tank group. In some possible implementations, the risk warning method for vehicle-mounted hydrogen storage tank groups can be implemented by a processor calling computer-readable instructions stored in memory.

[0033] See Figure 1 The diagram shown is a flowchart illustrating a risk warning method for a vehicle-mounted hydrogen storage cylinder assembly, as demonstrated in an exemplary embodiment of this application. The method includes: S101. For any hydrogen storage cylinder in the vehicle hydrogen storage cylinder group, obtain the status information of the hydrogen storage cylinder; the status information includes one or more of the following: hydrogen remaining amount, thermal state, safety state, hydrogen cylinder remaining life, and health state.

[0034] The vehicle-mounted hydrogen storage tank assembly can consist of multiple high-pressure hydrogen storage tanks, each equipped with a microcontroller unit. Each tank can be equipped with various sensors. These sensors are positioned at preset locations within the tank to collect multi-dimensional physical parameters in real time during operation. These sensors include, but are not limited to, pressure sensors, temperature sensors, impact sensors, and gas composition sensors. Specifically, the pressure sensor collects the real-time pressure inside the tank, the temperature sensor collects the real-time temperature, the impact sensor detects the intensity of external impacts received by the tank, and the gas composition sensor detects the hydrogen concentration in the external environment.

[0035] The pressure sensor can be located inside the bottle and / or at the bottle opening; the temperature sensor can adopt a single-point temperature measurement or multi-point distributed temperature measurement structure, for example, multiple temperature measurement points can be arranged at the bottle opening or along the axial direction of the bottle; the collision sensor can be an accelerometer; and the gas composition sensor can be located outside the bottle or inside the vehicle compartment.

[0036] Based on the data collected by the aforementioned sensors, the microcontroller unit can determine the status information of the hydrogen storage tank.

[0037] The aforementioned hydrogen storage cylinder status information may include one or more of the following: hydrogen remaining quantity, thermal status, safety status, remaining lifespan, and health status. Specifically, the hydrogen remaining quantity status refers to the ratio of the currently available hydrogen quantity in the cylinder to the hydrogen quantity at its rated full charge, reflecting the cylinder's remaining energy level; the thermal status is determined based on real-time temperature, pressure, and hydrogen charging / discharging rates, comprehensively assessing the internal temperature distribution of the cylinder; the safety status is determined through signals from three independent sensors: hydrogen leakage, pressure exceeding limits, and impact / impact, comprehensively judging whether there is an immediate safety risk to the cylinder; the health status characterizes the degree of aging of the cylinder materials, calculated based on the ratio of the cumulative number of hydrogen charging / discharging cycles to the total number of failure cycles; and the remaining lifespan is estimated based on the difference between the specified total fatigue life and the current cumulative number of cycles, estimating the remaining number of safe-to-use cycles for the cylinder.

[0038] In some implementations, the microcontroller unit can acquire calibration data, hydrogen filling and discharging data, and sensor data collected by the corresponding sensors of the hydrogen storage cylinder; the sensor data includes one or more of the following: real-time pressure inside the hydrogen storage cylinder, real-time temperature inside the hydrogen storage cylinder, impact force of the hydrogen storage cylinder, and gas composition outside the hydrogen storage cylinder; based on the calibration data, the hydrogen filling and discharging data, and the sensor data, the state information corresponding to the hydrogen storage cylinder is determined.

[0039] The calibration data may include static information written into the encrypted electronic tag of the hydrogen storage cylinder at the time of manufacture, serving as a baseline reference for state calculation. Once written, this data generally remains unchanged throughout the entire lifecycle of the hydrogen storage cylinder. For example, it may include the production date, material type (e.g., Type III or Type IV cylinder), design pressure (e.g., 35 MPa or 70 MPa), rated operating temperature, volume dimensions, acoustic emission test waveform, hydrostatic test results, and unique identification. In some embodiments, the calibration data may also include maintenance information and periodic inspection information. The microcontroller unit can read the encrypted electronic tag to obtain the calibration data.

[0040] Hydrogen filling and discharging data refers to process parameters provided by external systems (such as hydrogen refueling stations or vehicle control modules) during the filling or discharging of hydrogen storage tanks, used to calculate status information. For example, it may include hydrogen filling rate (kg / min), hydrogen discharging rate, hydrogen refueling station pressure monitoring data, hydrogen refueling station ambient temperature and humidity, hydrogen filling start and end time, hydrogen refueling operation certification information, etc.

[0041] In some embodiments, hydrogen charging and discharging data can be obtained in real time by establishing a dedicated communication link with the hydrogen refueling station control system through the vehicle communication interface during the hydrogen refueling process, and parameters such as hydrogen charging rate and hydrogen refueling station pressure can be obtained. During vehicle operation, data such as hydrogen discharging rate can also be obtained from the vehicle control module through the vehicle CAN bus.

[0042] After acquiring the three types of data mentioned above, timestamp alignment is first performed to ensure that data such as pressure, temperature, and hydrogen charging rate come from the same time window. Subsequently, data preprocessing is carried out: missing values ​​are linearly interpolated, outliers are removed or replaced, and noise signals are filtered. Finally, various status information is determined based on the processed data.

[0043] The remaining hydrogen quantity can be calculated based on real-time pressure and temperature, combined with the ideal gas law or the real gas compressibility factor correction formula, to determine the ratio of the current hydrogen density to the hydrogen density under rated operating conditions. The thermal status is based on real-time temperature, real-time pressure, and hydrogen charging / discharging rates, combined with experimentally calibrated fitting coefficients, to predict the maximum temperature inside the cylinder. The safety status can simultaneously determine whether the hydrogen concentration, real-time pressure, and peak acceleration exceed safety thresholds, outputting the comprehensive safety status via a logical "OR" statement. The health status can be calculated based on the ratio of the cumulative hydrogen charging / discharging cycles to the total number of failure cycles. The remaining lifespan of the hydrogen cylinder can be calculated based on the difference between the total number of failure cycles and the current cumulative number of cycles.

[0044] In some embodiments, the microcontroller unit can store raw sensor data, hydrogen charge / discharge data, and calculated state information in local Flash memory, and supports uploading key data to a cloud monitoring platform via 4G / 5G or Wi-Fi modules for big data analysis and model iteration training.

[0045] This approach organically combines static calibration data, dynamic process data, and real-time sensor data, providing a complete and traceable data chain for state information calculation and avoiding state assessment biases caused by data fragmentation in traditional methods. Based on the real gas equation of state and experimental calibration model, combined with dynamic corrections during the hydrogen charging and discharging process, the accuracy of state information calculation is significantly improved, accurately reflecting the actual state of the hydrogen storage cylinder under complex operating conditions. Sensor types, calibration data fields, and hydrogen charging and discharging data sources can all be flexibly configured according to different hydrogen storage cylinder types and application scenarios, possessing excellent platform scalability. By integrating factory calibration data, operational process data, and real-time state information, a complete digital archive of the hydrogen storage cylinder is constructed, providing a solid data foundation for full lifecycle health management, predictive maintenance, and accident tracing.

[0046] S102. For any of the aforementioned status information, determine the risk warning information corresponding to the status information based on the status information.

[0047] In this step, the microcontroller unit can independently evaluate each state information based on preset multi-level safety thresholds and generate corresponding risk warning information. The risk warning information includes warning levels (such as Level 1 alarm, Level 2 alarm, and emergency shutdown) and corresponding control commands (such as audible and visual alarms, power-limited operation, and hydrogen supply cutoff). After receiving the risk warning information, the microcontroller unit can send it to the vehicle control module, which then controls the vehicle to take hazard avoidance measures.

[0048] In some embodiments, multiple risk level corresponding status value ranges can be determined based on the type of status information; risk warning information corresponding to the status information can be determined based on the status value range indicated by the status information.

[0049] For example, when the status information indicates a remaining hydrogen quantity, determining the risk warning information corresponding to the status information based on the range of status values ​​indicated by the status information includes: If the status value is less than the first threshold, the risk warning information indicates that an over-discharge audible and visual alarm should be triggered. If the status value is greater than the second threshold, the risk warning information indicates that an overcharge audible and visual alarm should be triggered. If the status value is less than the third threshold, the risk warning information indicates that the load should be cut off; the third threshold is less than the first threshold; the second threshold is greater than the first threshold.

[0050] The first threshold can be a preset low-level warning threshold, used to determine whether the hydrogen storage cylinder is in a state of over-discharge risk. For example, based on the material characteristics and safety design of the hydrogen storage cylinder, this threshold can be set to 5%.

[0051] When the remaining hydrogen level falls below the first threshold, it can be determined that there is a risk of over-discharge in the hydrogen storage cylinder. Over-discharge may lead to excessively low pressure inside the cylinder, causing safety hazards such as air backflow, hydrogen embrittlement of materials, or collapse of the inner liner. In this case, the risk warning information can be a Level 1 alarm, triggering an audible and visual alarm (such as a buzzer sounding and a flashing red warning light on the dashboard) through the vehicle's interactive interface, prompting the driver to replenish hydrogen in time.

[0052] The second threshold can be a preset high-level warning threshold, used to determine whether the hydrogen storage cylinder is in an overcharge risk state. For example, this threshold can be set to 95%.

[0053] When the remaining hydrogen level exceeds the second threshold, it can be determined that the hydrogen storage cylinder is at risk of overcharging. Overcharging may cause the pressure inside the storage cylinder to exceed the design pressure, leading to overpressure leakage or even an explosion. In this case, the risk warning information can also trigger an audible and visual alarm, prompting the driver or hydrogen refueling operator to stop the hydrogen refueling operation.

[0054] The third threshold can be a preset emergency shutdown threshold, which is lower than the first threshold, and is used to determine whether the hydrogen storage cylinder has entered an extremely dangerous state. For example, this threshold can be set to 2%.

[0055] When the remaining hydrogen level falls below the third threshold, the hydrogen storage tank is considered to be in an extreme over-discharge state. Continued use may lead to irreversible material damage or a safety accident. In this case, the risk warning information can be sent as an emergency shutdown command via the vehicle communication interface to the vehicle control module. The vehicle control module will then cut off all loads (such as the fuel cell system and high-voltage accessories), maintaining power only to the safety monitoring system to ensure that the hydrogen storage tank stops releasing hydrogen.

[0056] In some embodiments, the specific values ​​of the first threshold, second threshold, and third threshold can be configured according to the type of hydrogen storage cylinder, usage scenario, or regulatory requirements. For example, for Type IV cylinders (plastic liner), to protect the liner material, the first threshold can be increased to 10%, and the third threshold can be increased to 5%; for commercial heavy trucks, considering the need for continuous operation, the second threshold can be reduced to 90% to reserve a safety margin.

[0057] The aforementioned audible and visual alarms can be presented through various means, including the vehicle's interactive interface, buzzers, and voice broadcast systems (such as "Hydrogen levels are low, please refuel immediately"). For fleet operation scenarios, alarm information can also be uploaded to a cloud monitoring platform via 4G / 5G modules and simultaneously pushed to the dispatch center or driver's mobile application, enabling remote monitoring and early warning.

[0058] Before triggering load cutoff, the system can first execute a first-level limiting strategy (such as limiting the fuel cell output power to 50% and disabling accelerator pedal response). If the remaining hydrogen level continues to drop to the third threshold, then complete cutoff will be executed.

[0059] The load disconnection operation should ensure the vehicle stops safely. For example, when the vehicle is in motion, the system should first control the vehicle through the vehicle control module to slowly decelerate to a safe stopping point before disconnecting the high-voltage system to avoid traffic accidents caused by sudden power outages.

[0060] After the load is cut off, if the hydrogen remaining amount is restored to above the first threshold through hydrogen charging, the system can automatically release the cut-off state and resume normal operation.

[0061] During the hydrogen refueling process, if the remaining hydrogen level exceeds the second threshold, the microcontroller can send a stop refueling command to the hydrogen refueling station via the communication interface. The hydrogen refueling station will then automatically terminate the refueling operation to prevent overcharging.

[0062] The microcontroller unit can record each threshold trigger event (including trigger time, hydrogen remaining status value, and trigger type), store it in local Flash memory, and upload it to the monitoring platform via the cloud. This data can be used to analyze driver usage habits, optimize threshold settings, and trace the cause of accidents.

[0063] Thus, by setting three threshold levels (audible and visual alarm → audible and visual alarm → forced shutdown), a progressive risk management system from alert to intervention is achieved. For minor risks, only the driver is alerted; for serious risks, safety measures are automatically implemented, ensuring safety while avoiding excessive intervention that could negatively impact the user experience. Over-discharge alarms and load cut-off mechanisms effectively prevent hydrogen embrittlement or liner collapse of the hydrogen storage tank due to excessively low pressure; over-charge alarms prevent overpressure risks caused by exceeding pressure limits. Together, these mechanisms significantly extend the lifespan of the hydrogen storage tank. By linking the hydrogen remaining state threshold judgment with vehicle control and hydrogen refueling station communication, coordinated control of the hydrogen storage system, vehicle energy management, and hydrogen refueling facilities is achieved, enhancing the overall intelligence level of hydrogen fuel cell vehicles.

[0064] Furthermore, the configurability of the threshold parameters allows the system to adapt to the needs of different types of hydrogen storage cylinders and various application scenarios, possessing excellent platform scalability. Simultaneously, the threshold optimization mechanism based on historical data enables continuous iteration and improvement of the early warning strategy during actual operation. Through audible and visual alarms and voice prompts, drivers can intuitively understand the energy status of the hydrogen storage cylinder and take timely actions such as replenishing hydrogen or stopping hydrogen replenishment, avoiding malfunctions or safety accidents caused by negligence.

[0065] In some implementations, when the state information is in a hot state, determining the risk warning information corresponding to the state information based on the state value range indicated by the state information includes: when the state value is greater than a fourth threshold, the risk warning information indicates triggering a high-temperature audible and visual alarm to reduce the hydrogen charging and discharging rate; when the state value is greater than a fifth threshold, the risk warning information indicates triggering an overheating audible and visual alarm to cut off the hydrogen supply.

[0066] Among them, thermal state is an effective estimate of the highest temperature inside the hydrogen storage cylinder, used to characterize the thermal risk level under the current operating conditions.

[0067] The fourth threshold is a preset high-temperature warning threshold, used to determine whether the hydrogen storage cylinder has entered a high-temperature risk state. This threshold is usually set to 90% of the maximum allowable operating temperature of the hydrogen storage cylinder.

[0068] When the thermal state value exceeds the fourth threshold, it can be determined that the hydrogen storage cylinder poses a high-temperature risk, which may lead to material performance degradation or aging of seals. The risk warning information can be a Level 1 alarm, triggered by a yellow warning light, buzzer, or voice prompt (e.g., "Hydrogen storage cylinder temperature is too high, please reduce power") on the vehicle's instrument panel. Simultaneously with triggering the high-temperature alarm, the vehicle control module can generate a speed reduction command to control the vehicle.

[0069] The fifth threshold is a preset overheat emergency threshold, used to determine whether the hydrogen storage cylinder has entered an extreme overheating dangerous state. This threshold is usually set to 110% of the maximum allowable operating temperature of the hydrogen storage cylinder.

[0070] When the thermal state value exceeds the fifth threshold, the hydrogen storage cylinder can be determined to be in an extreme overheated state, posing a serious safety risk of composite material delamination, liner melting, or even explosion. Risk warning information can indicate emergency alarm messages, triggering red warning lights, a high-frequency buzzer, and emergency voice prompts (such as "Hydrogen storage cylinder overheating, stop immediately"). Simultaneously with triggering the overheat alarm, the vehicle control module can generate emergency shutdown commands to control the vehicle, such as closing the hydrogen storage cylinder valve or high-pressure shut-off valve to immediately stop the supply of hydrogen to the fuel cell system; controlling the vehicle to enter a safety mode, limiting speed and guiding the driver to a safe stop; or triggering the pressure relief valve to actively release pressure and prevent cylinder rupture.

[0071] Thus, by setting two threshold levels (high-temperature rate reduction → overheat shutdown), progressive control of thermal risks is achieved. At slightly elevated temperatures, only the hydrogen charging / discharging rate is reduced, without affecting basic system operation; in cases of extreme overheating, the hydrogen supply is automatically cut off to ensure safety. This tiered design ensures safety while minimizing the impact of malfunctions on normal use.

[0072] In some embodiments, when the status information is in a safe state, determining the risk warning information corresponding to the status information based on the state value range indicated by the status information includes: If the hydrogen leakage status value in the safety status information exceeds the sixth threshold, the risk warning information indicates that at least one of the following actions should be triggered: triggering a leak audible and visual alarm, initiating forced ventilation, or cutting off the hydrogen supply. If the pressure status value in the safety status information exceeds the seventh threshold, the risk warning information indicates that the hydrogen proximity valve of the hydrogen storage cylinder should be closed. If the pressure status value in the safety status information exceeds the eighth threshold, the risk warning information indicates that the pressure relief valve should be triggered; the eighth threshold is greater than the seventh threshold. If the collision status value in the safety status information exceeds the ninth threshold, the risk warning information indicates that the system self-test should be triggered. If the collision status value in the safety status information exceeds the tenth threshold, the risk warning information indicates a shutdown prompt and a check for airtightness.

[0073] The safety state is a multidimensional composite state quantity consisting of three parallel and independent sub-states: hydrogen leak state, pressure state, and collision state. These three sub-states employ a parallel and independent judgment mechanism, meaning they are compared against thresholds separately. If any sub-state triggers an alarm, a corresponding risk warning will be output, ultimately triggering a safety response via a logical "OR" relationship to ensure no omissions.

[0074] The aforementioned sixth threshold is a preset hydrogen leak warning threshold used to determine whether a leak risk exists. For example, this threshold is typically set as multiple graded values ​​within the range of 1% to 25% of the lower explosive limit of hydrogen. When the hydrogen concentration is ≥1% of the lower explosive limit, a minor leak risk can be determined, and the risk warning information will trigger a level one alarm, indicated by a yellow indicator light on the dashboard, a buzzer, or a voice prompt (such as "Hydrogen leak detected, please check").

[0075] When the hydrogen concentration is ≥10% of the lower explosive limit of hydrogen, it can be determined that the risk of leakage has increased. The risk warning information indicates that a level two alarm is triggered. In addition to the audible and visual alarm, the forced ventilation system (such as a cooling fan or ventilation duct fan) is activated through the vehicle control module to accelerate the diffusion of hydrogen and prevent its accumulation.

[0076] When the hydrogen concentration is ≥25% of the lower explosive limit of hydrogen, the leakage risk can be determined to be at a dangerous level. The risk warning information indicates that an emergency shutdown is triggered. The hydrogen storage cylinder valve or high-pressure shut-off valve is closed through the MCU to immediately cut off the hydrogen supply and prevent an explosion.

[0077] The seventh threshold can be a preset overpressure warning threshold used to determine whether the hydrogen storage cylinder is in an overpressure risk state. For example, this threshold is usually set to 110% of the rated pressure. When the measured pressure exceeds the seventh threshold, it can be determined that there is an overpressure risk. The risk warning information can instruct the generation of a valve closing command, which closes the hydrogen proximity valve (such as the cylinder opening valve or high-pressure shut-off valve) of the hydrogen storage cylinder through the vehicle control module to prevent hydrogen from continuing to fill the cylinder and control the pressure from rising further.

[0078] The eighth threshold can be a preset overpressure emergency threshold used to determine whether the hydrogen storage cylinder has entered an extreme overpressure dangerous state. For example, this threshold is typically set to 130% of the design pressure. When the measured pressure exceeds the eighth threshold, it can be determined that the hydrogen storage cylinder is in an extreme overpressure state and there is a risk of rupture. The risk warning information indicates the generation of a pressure relief command, triggering the pressure relief valve (if configured) to actively open, releasing the hydrogen gas inside the cylinder to a safe area, reducing the pressure inside the cylinder, and preventing the cylinder from rupturing.

[0079] The ninth threshold can be a preset collision warning threshold used to determine whether the hydrogen storage tank has been subjected to a moderate-intensity impact. For example, this threshold is typically set to a peak acceleration of 5g. When the measured peak acceleration exceeds the ninth threshold, it can be determined that the hydrogen storage tank has been subjected to a collision impact that may affect safety. The risk warning information can be used to trigger a system self-test procedure, including checking the sealing of the cylinder valve, whether the pressure sensor readings are normal, and whether the hydrogen concentration sensor has an abnormal response, and then reporting the self-test results to the vehicle controller and remote monitoring platform.

[0080] The tenth threshold is a preset emergency collision threshold used to determine whether the hydrogen storage tank has been subjected to a severe impact. For example, this threshold is typically set to a peak acceleration of 10g. When the measured peak acceleration exceeds the tenth threshold, it can be determined that the hydrogen storage tank has been subjected to a severe impact, potentially resulting in structural damage or seal failure. The risk warning information can instruct the generation of an emergency alarm, prompting "Vehicle damaged, please stop immediately and check the seal" via the dashboard and voice prompts. Simultaneously, the vehicle controller will put the vehicle into a safety mode, limiting the speed and guiding the driver to a safe stop.

[0081] Thus, by using three independent channels for hydrogen leakage, overpressure, and collision, the system comprehensively covers the most significant immediate safety risks to hydrogen storage cylinders, avoiding potential blind spots in traditional single-dimensional monitoring methods. Each channel has multiple threshold levels, enabling a progressive response from alert to intervention. Minor risks are addressed with only audible and visual warnings or ventilation, while severe risks are automatically cut off from the hydrogen supply or triggered by the pressure relief valve, ensuring safety while avoiding excessive intervention. The parallel and independent judgment mechanism ensures that any alarm triggered by any channel can be responded to immediately without interference. Compared to traditional sequential judgment methods, this significantly reduces the time delay from risk occurrence to action execution.

[0082] In some embodiments, when the status information is in a healthy state, determining the risk warning information corresponding to the status information based on the status value range indicated by the status information includes: If the status value is less than the eleventh threshold, the risk warning information indicates that periodic physical testing of the hydrogen cylinder is triggered to limit the range of hydrogen filling and discharging in the hydrogen storage cylinder; if the status value is less than the twelfth threshold, the risk warning information indicates that hydrogen filling is disabled; the eleventh threshold is greater than the twelfth threshold.

[0083] Among them, health status is a quantitative assessment of the overall health of the hydrogen storage cylinder, which can be expressed as a percentage and comprehensively reflects the cumulative degree of fatigue damage and the remaining usable life of the hydrogen storage cylinder.

[0084] The eleventh threshold can be a preset health status warning threshold, used to determine whether the hydrogen storage cylinder has entered the moderate aging stage, requiring enhanced monitoring and restricted use. For example, this threshold is typically set to 5%.

[0085] When the health status falls below the eleventh threshold, the hydrogen storage cylinder can be determined to be nearing the end of its lifespan, posing potential risks such as material fatigue and microcrack propagation. The risk warning information generates a Level 1 alarm, prompting a message via the vehicle's dashboard and remote monitoring platform: "Hydrogen storage cylinder health status is insufficient; please arrange professional inspection as soon as possible." Simultaneously, the inspection cycle can be shortened from routine annual inspections to monthly mandatory physical inspections (such as airtightness tests, hydrostatic tests, and acoustic emission tests) to ensure timely identification of potential failure risks. While triggering periodic inspection prompts, the system limits the range of hydrogen filling and discharging volumes in the storage cylinder through the vehicle control module and the hydrogen refueling station communication interface.

[0086] The twelfth threshold can be a preset emergency health status threshold, used to determine whether the hydrogen storage cylinder has entered a severely aged state, and continued use poses a significant safety risk. For example, this threshold is typically set to 2%.

[0087] When the health status falls below the twelfth threshold, the hydrogen storage cylinder can be determined to have essentially reached the end of its lifespan. Continued refilling may lead to fatigue failure, leakage, or even rupture. Risk warning information can trigger an emergency alarm, displayed via a red warning light on the dashboard, a high-frequency buzzer, and a voice prompt stating, "The hydrogen storage cylinder has reached the end of its lifespan; refilling is prohibited." The vehicle control module can send a command to the refueling station to prohibit refilling, and the station will refuse to provide refueling service to the vehicle. If the vehicle is already connected to a refueling nozzle, the station will automatically terminate the refilling process and lock the nozzle. The hydrogen storage cylinder's status will be marked as "end of life," written to local non-volatile memory and unremovable even by a system restart, preventing bypassing safety restrictions through power failure. Residual hydrogen in the cylinder can still be released into the fuel cell system for consumption or safely released through a pressure relief valve, but any refilling operation is prohibited.

[0088] In this way, by setting two threshold levels, the health status of hydrogen storage cylinders can be scientifically managed. For moderate aging, enhanced testing and restricted use extend safe operating time; for severe aging, hydrogen refilling is forcibly prohibited to ensure vehicle safety.

[0089] In some implementations, when the status information indicates the remaining lifespan of the hydrogen cylinder, determining the risk warning information corresponding to the status information based on the status value range indicated by the status information includes: when the status value is less than the thirteenth threshold, the risk warning information indicates a hydrogen cylinder replacement prompt.

[0090] The remaining service life is a quantitative assessment of the remaining usable life of the hydrogen storage cylinder, expressed as the remaining number of safe cycles.

[0091] The thirteenth threshold can be a preset emergency threshold for remaining life, used to determine whether the hydrogen storage cylinder is nearing the end of its life and requires immediate replacement. For example, this threshold is typically set to 50 times.

[0092] When the remaining service life falls below the thirteenth threshold, the hydrogen storage cylinder can be determined to be at the end of its lifespan, and continued use poses a risk of fatigue failure. Risk warning information can then be used to generate an emergency replacement alert.

[0093] S103. The risk warning information is sent to the vehicle control module; the vehicle control module is used to control the vehicle based on the risk warning information.

[0094] In this step, the microcontroller can send the generated risk warning information to the vehicle control module (such as the vehicle controller) in real time through the vehicle communication interface. The vehicle control module then executes the corresponding control strategy based on the received warning information.

[0095] S104. Construct a state time series based on the historical state information of the hydrogen storage cylinder, and use the trained state information prediction model to determine the predicted state information of the hydrogen storage cylinder at future times based on the state time series.

[0096] In this step, the microcontroller unit can continuously store the status information generated by the hydrogen storage cylinder during its historical operation in local memory or cloud server, including key indicators such as the remaining hydrogen quantity status, thermal status, safety status, data of each sub-channel, health status, and remaining service life. Each status information is accompanied by a timestamp, forming a time-ordered sequence of status information.

[0097] When constructing the state time series, the microcontroller first timestamps the historical state information to ensure consistency of data from different sensors within the same time window. Then, the series is cleaned, including missing value interpolation (such as using linear interpolation or spline interpolation), outlier removal (such as the isolated forest algorithm), and noise filtering (such as using moving average or Kalman filtering) to eliminate random fluctuations and acquisition errors in the original data. Finally, feature normalization is performed to map state information of different dimensions to a unified scale (such as using Min-Max normalization or Z-score standardization) to prepare it for model input.

[0098] After preprocessing, the microcontroller extracts the input feature matrix from the historical state information sequence according to the preset time window length (such as the past 30 minutes, the past 100 hydrogen charge-discharge cycles, or the past 7 days) and the sliding step size (such as 1 minute or 1 cycle), forming a standardized state time series sample set.

[0099] During the model training phase, deep learning models suitable for time-series data prediction, such as Long Short-Term Memory (LSTM) networks, gated recurrent units (GRUs), or Transformers, are employed. The input is a sequence of state information within a historical time window, and the output label is state information at future moments (e.g., 5 minutes, 30 minutes, or a future hydrogen charge / discharge cycle). Supervised training using a large amount of historical operational data optimizes model parameters, minimizing the error between predicted and actual values ​​(e.g., using mean squared error or mean absolute error as the loss function). After training, the trained model parameters are stored and deployed in the microcontroller unit (MCU) or deployed to a cloud server for the MCU to access via a wireless communication interface. During actual operation, the MCU acquires the latest historical state information sequence in real time and inputs it into the trained prediction model. The model automatically calculates and outputs predicted state information for future moments based on the temporal dependencies and trends in the input sequence.

[0100] To ensure the accuracy and robustness of the predictions, confidence information (such as the standard deviation or confidence interval of the predicted values) can be added to the prediction results. For predictions with low confidence, only a warning is issued without triggering automatic control actions. As the prediction time window approaches, the predicted values ​​are continuously updated, and the response level is gradually increased as the confidence level improves. Through the above-mentioned state time series construction and prediction model application, a forward-looking perception of the future state of hydrogen storage cylinders is achieved, providing reliable data support for subsequent prediction risk warnings and proactive safety control.

[0101] S105. Based on the predicted state information, determine the predicted risk warning information corresponding to the state information, and send the predicted risk warning information to the vehicle control module.

[0102] The specific implementation method of determining the predicted risk warning information based on the predicted state information can be found in the relevant content of step S102, and will not be repeated here.

[0103] The risk warning method for vehicle-mounted hydrogen storage cylinder groups provided in this application integrates multi-dimensional state information of the hydrogen storage cylinder group, performing unified correlation analysis on information such as hydrogen remaining quantity, thermal state, safety state, health state, and remaining lifespan, and determining corresponding risk warning information for each. This achieves a comprehensive characterization of the operating status of the hydrogen storage cylinder group, improving the completeness and accuracy of risk identification. Simultaneously, this application performs dynamic analysis based on real-time collected state information, making risk judgment more timely and effectively reducing the lag and misjudgment problems caused by traditional methods based on single thresholds or offline analysis. By introducing historical state information to construct a time series and combining it with a trained prediction model to predict future states, it further generates predictive risk warning information, upgrading risk warning from passive response to proactive prediction, thereby enhancing the system's foresight and proactive safety capabilities. Furthermore, this application transmits risk warning information to the vehicle control module, enabling the vehicle to execute corresponding control strategies based on different risk levels, forming a closed-loop management mechanism combining monitoring, analysis, warning, and control, thereby significantly improving the safety management level and operational reliability of the hydrogen storage cylinder group throughout its entire lifecycle.

[0104] See Figure 2 The diagram shown is a schematic representation of a risk warning system for a vehicle-mounted hydrogen storage cylinder assembly, provided as an exemplary embodiment of this application. The system includes an encrypted electronic tag module, multiple sensors, a hydrogen refueling station data interaction module, a power management module, a microcontroller unit, a memory, a vehicle control module, and a cloud server.

[0105] See Figure 3 The diagram shown is a schematic representation of a vehicle-mounted hydrogen storage tank status determination device provided in an exemplary embodiment of this application. The device includes: The acquisition module 310 is used to acquire the status information of any hydrogen storage cylinder in the vehicle hydrogen storage cylinder group; the status information includes one or more of the following: hydrogen remaining amount, thermal state, safety state, hydrogen cylinder remaining life, and health state. The first determining module 320 is used to determine, based on any of the aforementioned state information, risk warning information corresponding to the state information. The first sending module 330 is used to send the risk warning information to the vehicle control module; the vehicle control module is used to control the vehicle based on the risk warning information. The second determining module 340 is used to construct a state time series based on the historical state information of the hydrogen storage bottle, and use a trained state information prediction model to determine the predicted state information of the hydrogen storage bottle at future times based on the state time series. The second sending module 350 is used to determine the predicted risk warning information corresponding to the predicted state information based on the predicted state information, and send the predicted risk warning information to the vehicle control module.

[0106] In some implementations, the state information of the hydrogen storage cylinder is determined through the following steps: Acquire calibration data, hydrogen filling and discharging data, and sensor data collected by the corresponding sensors of the hydrogen storage cylinder; the sensor data includes one or more of the following: real-time pressure inside the hydrogen storage cylinder, real-time temperature inside the hydrogen storage cylinder, impact force of the hydrogen storage cylinder, and gas composition outside the hydrogen storage cylinder. Based on the calibration data, the hydrogen filling and discharging data, and the sensor data, the status information corresponding to the hydrogen storage cylinder is determined.

[0107] In some implementations, the first determining module 320 is used to: Based on the type of the status information, determine the status value range corresponding to multiple risk levels; Based on the state value range indicated by the state information, the risk warning information corresponding to the state information is determined.

[0108] In some implementations, when the state information indicates a remaining hydrogen quantity, the first determining module 320 is used to: If the status value is less than the first threshold, the risk warning information indicates that an over-discharge audible and visual alarm should be triggered. If the status value is greater than the second threshold, the risk warning information indicates that an overcharge audible and visual alarm should be triggered. If the status value is less than the third threshold, the risk warning information indicates that the load should be cut off; the third threshold is less than the first threshold; the second threshold is greater than the first threshold.

[0109] In some implementations, when the state information is in a hot state, the first determining module 320 is used to: If the state value is greater than the fourth threshold, the risk warning information indicates that a high-temperature audible and visual alarm should be triggered to reduce the hydrogen charging and discharging rate. If the status value is greater than the fifth threshold, the risk warning information indicates that an overheating audible and visual alarm will be triggered, and the hydrogen supply will be cut off.

[0110] In some implementations, when the status information is a safe state, the first determining module 320 is used to: If the hydrogen leak status value in the safety status information is greater than the sixth threshold, the risk warning information indicates that at least one of the following should be triggered: triggering a leak audible and visual alarm, activating forced ventilation, or cutting off the hydrogen supply. If the pressure status value in the safety status information is greater than the seventh threshold, the risk warning information indicates that the hydrogen proximity valve of the hydrogen storage cylinder be closed; If the pressure status value in the safety status information is greater than the eighth threshold, the risk warning information indicates that the pressure relief valve should be triggered; the eighth threshold is greater than the seventh threshold. If the collision status value in the safety status information is greater than the ninth threshold, the risk warning information indicates that a system self-test should be triggered. If the collision status value in the safety status information is greater than the tenth threshold, the risk warning information indicates a shutdown prompt and a prompt to check the airtightness.

[0111] In some implementations, when the status information is in a healthy state, the first determining module 320 is used to: If the state value is less than the eleventh threshold, the risk warning information indicates the triggering of periodic physical testing of the hydrogen cylinder to limit the range of hydrogen filling and discharging in the hydrogen storage cylinder. If the status value is less than the twelfth threshold, the risk warning information indicates that hydrogen charging should be disabled; if the eleventh threshold is greater than the twelfth threshold.

[0112] In some implementations, when the status information indicates the remaining lifespan of the hydrogen cylinder, the first determining module 320 is used to: If the status value is less than the thirteenth threshold, the risk warning information indicates a hydrogen cylinder replacement prompt.

[0113] The specific implementation process of each function and role in the above device can be found in the implementation process of the corresponding steps in the above method, and will not be repeated here.

[0114] This application also provides a computer device, such as... Figure 4 The diagram shown is a schematic representation of a computer device according to an exemplary embodiment of this application. The computer device includes: Processor 41 and memory 42; the memory 42 stores machine-readable instructions executable by the processor 41, and the processor 41 executes the machine-readable instructions stored in the memory 42. When the machine-readable instructions are executed by the processor 41, the processor 41 performs the following steps: For any hydrogen storage cylinder in the vehicle hydrogen storage cylinder group, obtain the status information of the hydrogen storage cylinder; the status information includes one or more of the following: hydrogen remaining amount, thermal state, safety state, hydrogen cylinder remaining life, and health state. For any of the aforementioned status information, based on the status information, determine the corresponding risk warning information; The risk warning information is sent to the vehicle control module; the vehicle control module is used to control the vehicle based on the risk warning information. A state time series is constructed based on the historical state information of the hydrogen storage cylinder, and a trained state information prediction model is used to determine the predicted state information of the hydrogen storage cylinder at future times based on the state time series. Based on the predicted status information, the predicted risk warning information corresponding to the status information is determined, and the predicted risk warning information is sent to the vehicle control module.

[0115] In some embodiments, the processor 41 is also configured to perform: Acquire calibration data, hydrogen filling and discharging data, and sensor data collected by the corresponding sensors of the hydrogen storage cylinder; the sensor data includes one or more of the following: real-time pressure inside the hydrogen storage cylinder, real-time temperature inside the hydrogen storage cylinder, impact force of the hydrogen storage cylinder, and gas composition outside the hydrogen storage cylinder. Based on the calibration data, the hydrogen filling and discharging data, and the sensor data, the status information corresponding to the hydrogen storage cylinder is determined.

[0116] In some implementations, determining the risk warning information corresponding to the status information based on the status information includes: Based on the type of the status information, determine the status value range corresponding to multiple risk levels; Based on the state value range indicated by the state information, the risk warning information corresponding to the state information is determined.

[0117] In some implementations, when the state information indicates a remaining hydrogen quantity, determining the risk warning information corresponding to the state information based on the state value range indicated by the state information includes: If the status value is less than the first threshold, the risk warning information indicates that an over-discharge audible and visual alarm should be triggered. If the status value is greater than the second threshold, the risk warning information indicates that an overcharge audible and visual alarm should be triggered. If the status value is less than the third threshold, the risk warning information indicates that the load should be cut off; the third threshold is less than the first threshold; the second threshold is greater than the first threshold.

[0118] In some implementations, when the state information is in a hot state, determining the risk warning information corresponding to the state information based on the state value range indicated by the state information includes: If the state value is greater than the fourth threshold, the risk warning information indicates that a high-temperature audible and visual alarm should be triggered to reduce the hydrogen charging and discharging rate. If the status value is greater than the fifth threshold, the risk warning information indicates that an overheating audible and visual alarm will be triggered, and the hydrogen supply will be cut off.

[0119] In some implementations, when the status information is in a safe state, determining the risk warning information corresponding to the status information based on the state value range indicated by the status information includes: If the hydrogen leak status value in the safety status information is greater than the sixth threshold, the risk warning information indicates that at least one of the following should be triggered: triggering a leak audible and visual alarm, activating forced ventilation, or cutting off the hydrogen supply. If the pressure status value in the safety status information is greater than the seventh threshold, the risk warning information indicates that the hydrogen proximity valve of the hydrogen storage cylinder be closed; If the pressure status value in the safety status information is greater than the eighth threshold, the risk warning information indicates that the pressure relief valve should be triggered; the eighth threshold is greater than the seventh threshold. If the collision status value in the safety status information is greater than the ninth threshold, the risk warning information indicates that a system self-test should be triggered. If the collision status value in the safety status information is greater than the tenth threshold, the risk warning information indicates a shutdown prompt and a prompt to check the airtightness.

[0120] In some implementations, when the status information is in a healthy state, determining the risk warning information corresponding to the status information based on the range of status values ​​indicated by the status information includes: If the state value is less than the eleventh threshold, the risk warning information indicates the triggering of periodic physical testing of the hydrogen cylinder to limit the range of hydrogen filling and discharging in the hydrogen storage cylinder. If the status value is less than the twelfth threshold, the risk warning information indicates that hydrogen charging should be disabled; if the eleventh threshold is greater than the twelfth threshold.

[0121] In some implementations, when the status information indicates the remaining lifespan of the hydrogen cylinder, determining the risk warning information corresponding to the status information based on the range of status values ​​indicated by the status information includes: If the status value is less than the thirteenth threshold, the risk warning information indicates a hydrogen cylinder replacement prompt.

[0122] The aforementioned memory 42 includes a main memory 421 and an external memory 422; the main memory 421, also known as internal memory, is used to temporarily store the computational data in the processor 41, as well as the data exchanged with external memory 422 such as a hard disk. The processor 41 exchanges data with the external memory 422 through the main memory 421.

[0123] The specific execution process of the above instructions can be referred to the steps of the risk warning method for vehicle hydrogen storage cylinder groups described in the embodiments of this application, and will not be repeated here.

[0124] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this application according to actual needs. Those skilled in the art can understand and implement this without any inventive effort.

[0125] This application also provides a computer-readable storage medium storing a computer program. When executed by a processor, the computer program performs the steps of the risk warning method for vehicle-mounted hydrogen storage cylinders described in the above method embodiments. The storage medium can be volatile or non-volatile computer-readable storage.

[0126] This application also provides a computer program product, including a computer program / instruction, which, when executed by the computer program / instruction processor, implements the steps of the risk warning method for vehicle hydrogen storage cylinder groups provided in the various embodiments of this application.

[0127] The aforementioned computer program product can be implemented through hardware, software, or a combination thereof. In one optional embodiment, the computer program product is specifically embodied in a computer storage medium; in another optional embodiment, the computer program product is specifically embodied in a software product, such as a software development kit (SDK), etc.

[0128] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems and devices described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division; in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the displayed or discussed mutual coupling or direct coupling or communication connection may be through some communication interfaces; the indirect coupling or communication connection of devices or units may be electrical, mechanical, or other forms.

[0129] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0130] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0131] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0132] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application 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, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such 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 this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0133] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A risk warning method for vehicle-mounted hydrogen storage cylinder assemblies, characterized in that, include: For any hydrogen storage cylinder in the vehicle hydrogen storage cylinder group, obtain the status information of the hydrogen storage cylinder; the status information includes one or more of the following: hydrogen remaining amount, thermal state, safety state, hydrogen cylinder remaining life, and health state. For any of the aforementioned status information, based on the status information, determine the corresponding risk warning information; The risk warning information is sent to the vehicle control module; The vehicle control module is used to control the vehicle based on the risk warning information; A state time series is constructed based on the historical state information of the hydrogen storage cylinder, and a trained state information prediction model is used to determine the predicted state information of the hydrogen storage cylinder at future times based on the state time series. Based on the predicted status information, the predicted risk warning information corresponding to the status information is determined, and the predicted risk warning information is sent to the vehicle control module.

2. The method according to claim 1, characterized in that, The status information of the hydrogen storage cylinder is determined through the following steps: Acquire calibration data, hydrogen filling and discharging data, and sensor data collected by the corresponding sensors of the hydrogen storage cylinder; the sensor data includes one or more of the following: real-time pressure inside the hydrogen storage cylinder, real-time temperature inside the hydrogen storage cylinder, impact force of the hydrogen storage cylinder, and gas composition outside the hydrogen storage cylinder. Based on the calibration data, the hydrogen filling and discharging data, and the sensor data, the status information corresponding to the hydrogen storage cylinder is determined.

3. The method according to claim 1, characterized in that, The step of determining the risk warning information corresponding to the status information based on the status information includes: Based on the type of the status information, determine the status value range corresponding to multiple risk levels; Based on the state value range indicated by the state information, the risk warning information corresponding to the state information is determined.

4. The method according to claim 3, characterized in that, When the status information indicates a remaining hydrogen quantity, determining the risk warning information corresponding to the status information based on the state value range indicated by the status information includes: If the status value is less than the first threshold, the risk warning information indicates that an over-discharge audible and visual alarm should be triggered. If the status value is greater than the second threshold, the risk warning information indicates that an overcharge audible and visual alarm should be triggered. If the status value is less than the third threshold, the risk warning information indicates that the load should be cut off; the third threshold is less than the first threshold; the second threshold is greater than the first threshold.

5. The method according to claim 3, characterized in that, When the state information is in a hot state, determining the risk warning information corresponding to the state information based on the state value range indicated by the state information includes: If the state value is greater than the fourth threshold, the risk warning information indicates that a high-temperature audible and visual alarm should be triggered to reduce the hydrogen charging and discharging rate. If the status value is greater than the fifth threshold, the risk warning information indicates that an overheating audible and visual alarm will be triggered, and the hydrogen supply will be cut off.

6. The method according to claim 3, characterized in that, When the status information indicates a safe state, determining the risk warning information corresponding to the status information based on the state value range indicated by the status information includes: If the hydrogen leak status value in the safety status information is greater than the sixth threshold, the risk warning information indicates that at least one of the following should be triggered: triggering a leak audible and visual alarm, activating forced ventilation, or cutting off the hydrogen supply. If the pressure status value in the safety status information is greater than the seventh threshold, the risk warning information indicates that the hydrogen proximity valve of the hydrogen storage cylinder be closed; If the pressure status value in the safety status information is greater than the eighth threshold, the risk warning information indicates that the pressure relief valve should be triggered; the eighth threshold is greater than the seventh threshold. If the collision status value in the safety status information is greater than the ninth threshold, the risk warning information indicates that a system self-test should be triggered. If the collision status value in the safety status information is greater than the tenth threshold, the risk warning information indicates a shutdown prompt and a prompt to check the airtightness.

7. The method according to claim 3, characterized in that, When the status information indicates a healthy state, determining the risk warning information corresponding to the status information based on the status value range indicated by the status information includes: If the state value is less than the eleventh threshold, the risk warning information indicates the triggering of periodic physical testing of the hydrogen cylinder to limit the range of hydrogen filling and discharging in the hydrogen storage cylinder. If the status value is less than the twelfth threshold, the risk warning information indicates that hydrogen charging should be disabled; if the eleventh threshold is greater than the twelfth threshold.

8. The method according to claim 3, characterized in that, When the status information indicates the remaining lifespan of the hydrogen cylinder, determining the risk warning information corresponding to the status information based on the state value range indicated by the status information includes: If the status value is less than the thirteenth threshold, the risk warning information indicates a hydrogen cylinder replacement prompt.

9. A risk warning device for a vehicle-mounted hydrogen storage cylinder assembly, characterized in that, The device includes: The acquisition module is used to acquire the status information of any hydrogen storage cylinder in the vehicle hydrogen storage cylinder group; the status information includes one or more of the following: hydrogen remaining amount, thermal state, safety state, hydrogen cylinder remaining life, and health state. The first determining module is used to determine, based on any one of the aforementioned status information, the risk warning information corresponding to the status information. The first sending module is used to send the risk warning information to the vehicle control module; the vehicle control module is used to control the vehicle based on the risk warning information. The second determining module is used to construct a state time series based on the historical state information of the hydrogen storage cylinder, and use a trained state information prediction model to determine the predicted state information of the hydrogen storage cylinder at future times based on the state time series. The second sending module is used to determine the predicted risk warning information corresponding to the predicted status information based on the predicted status information, and send the predicted risk warning information to the vehicle control module.

10. A computer 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 to 8.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by a processor, it implements the steps of the method as described in any one of claims 1 to 8.

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