The invention discloses a hydrogen leakage detection method, device and equipment, a vehicle and a medium, and is applied to the technical field of fuel cells. The method specifically comprises the following steps: acquiring the current rotating speed of a hydrogen circulating pump, the current pile inlet hydrogen pressure and the current pile outlet hydrogen pressure; determining a current stack inlet and outlet hydrogen pressure difference based on the current stack inlet hydrogen pressure and the current stack outlet hydrogen pressure; based on a first mapping relation between the measured value of the current pile inlet hydrogen flow and the rotating speed of the hydrogen circulating pump, the pile inlet hydrogen pressure and the difference between the pile inlet hydrogen pressure and the pile outlet hydrogen pressure, determining the measured value of the current pile inlet hydrogen flow; determining a current stack inlet hydrogen flow theoretical value based on a second mapping relation between the stack inlet hydrogen flow theoretical value and the current density value; and the current hydrogen leakage detection result is determined based on the current electric pile inlet hydrogen flow measured value and the current electric pile inlet hydrogen flow theoretical value, and therefore real-time detection of the hydrogen leakage amount in the whole life cycle of vehicle operation can be achieved.

    本申请公开了一种氢气泄露检测方法、装置、设备、车辆及介质,应用于燃料电池技术领域,具体为:获取当前氢气循环泵转速、当前电堆入口氢气压力和当前电堆出口氢气压力,基于当前电堆入口氢气压力和当前电堆出口氢气压力确定当前电堆出入口氢气压力差;基于电堆入口氢气流量实测值与氢气循环泵转速、电堆入口氢气压力和电堆出入口氢气压力差之间的第一映射关系确定当前电堆入口氢气流量实测值;基于电堆入口氢气流量理论值与电密值之间的第二映射关系确定当前电堆入口氢气流量理论值;基于当前电堆入口氢气流量实测值和当前电堆入口氢气流量理论值确定当前氢气泄露检测结果,从而可以实现在车辆运行的全寿命周期内对氢气泄露量的实时检测。


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    Title :

    Hydrogen leakage detection method, device and equipment, vehicle and medium


    Additional title:

    一种氢气泄露检测方法、装置、设备、车辆及介质


    Contributors:
    JING SAI (author) / LI NING (author) / CUI TIANYU (author)

    Publication date :

    2025-03-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen



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