The invention provides a power supply control method and an active fuel cell system, and relates to the technical field of fuel cells, the active fuel cell system comprises a fuel cell control module, a candidate power supply module and a fuel cell, and the method comprises the following steps: the fuel cell control module detects a power supply signal of a whole vehicle to the active fuel cell system; if the fuel cell control module detects a low-voltage power supply abnormal signal of the whole vehicle, the candidate power supply module is started to provide working voltage for the active fuel cell system; the fuel cell control module sends a shutdown purging signal to the fuel cell, so that shutdown purging of the fuel cell is realized; and the fuel cell control module receives a purging ending signal fed back by the fuel cell and closes the candidate power supply module. According to the active fuel cell system provided by the invention, the problem that the fuel cell system cannot perform purging when an external power supply is abnormally disconnected is solved, liquid water in the fuel cell is reduced, and the fuel cell is prevented from being damaged.

    本申请提供了一种供电控制方法及有源燃料电池系统,涉及燃料电池技术领域,有源燃料电池系统包括燃料电池控制模块、候补供电模块和燃料电池,其中,方法包括:燃料电池控制模块检测整车对有源燃料电池系统的供电信号;燃料电池控制模块若检测到整车低压供电异常信号,则启动候补供电模块,以为有源燃料电池系统提供工作电压;燃料电池控制模块向燃料电池发送关机吹扫信号,以使燃料电池实现关机吹扫;燃料电池控制模块接收燃料电池反馈的吹扫结束信号,关闭候补供电模块。本申请提供的有源燃料电池系统,解决外部电源异常断开时,燃料电池系统无法实施吹扫的问题,减少燃料电池内部液态水,避免燃料电池损坏。


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    Title :

    Power supply control method and active fuel cell system


    Additional title:

    一种供电控制方法及有源燃料电池系统


    Contributors:
    GAO JINHONG (author) / LI FEIQIANG (author) / GAO YUNQING (author) / ZHOU BAO (author)

    Publication date :

    2023-11-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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