The invention provides a fuel cell power generation system protection method and device and an electric vehicle, and relates to the technical field of electric vehicles. According to the fuel cell power generation system protection method, the environment air pressure of the electric vehicle can be obtained, and the target air pressure, collected by a first air pressure sensor, in an air pipe between an air filter and an air compressor is received; and when the target air pressure is lower than the ambient air pressure, the air filter is possibly blocked and needs to be further confirmed. Determining an air pressure difference between the ambient air pressure and the target air pressure; when the air pressure difference is larger than the set first air pressure difference threshold value, it can be accurately determined that the air filter is blocked, in this way, fault reasons can be accurately positioned, blocking protection operation on the fuel cell power generation system can be executed, then the service life of the fuel cell power generation system is prolonged, and the equipment cost is reduced.

    本申请提供了一种燃料电池发电系统保护方法、装置及电动汽车,涉及电动汽车技术领域。该燃料电池发电系统保护方法可以获取电动汽车的环境气压,以及接收来自第一气压传感器采集的空滤与空气压缩机之间的气管内的目标气压;在目标气压低于环境气压时,说明空滤可能存在堵塞需要进一步确认。进而,确定环境气压与目标气压之间的气压差;在气压差大于设定的第一气压差阈值时,可以精准地确定空滤存在堵塞,这样一来,能够精准地定位故障原因,且可以执行对燃料电池发电系统的堵塞保护操作,进而,延长燃料电池发电系统的使用寿命,降低设备成本。


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    Title :

    Fuel cell power generation system protection method and device and electric vehicle


    Additional title:

    燃料电池发电系统保护方法、装置及电动汽车


    Contributors:
    FANG WEI (author) / MA YI (author) / WANG QIULAI (author) / YAN FEI (author) / WANG CHENG (author)

    Publication date :

    2024-09-13


    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