The invention belongs to the technical field of battery control of fuel cell passenger cars, and provides a whole vehicle control method and system based on fuel cell abnormity, if only a preset first-level fault condition exists, the fault condition is not processed; if the preset third-level fault condition exists, the fuel cell is controlled to stop emergently; if the preset first-level fault condition and the preset second-level fault condition exist or only the preset second-level fault condition exists, the number of times of occurrence of the preset second-level fault condition is judged; if the preset secondary fault condition frequency is smaller than the preset frequency, the fuel cell continues to run, and otherwise, the fuel cell is controlled to be shut down; compared with the prior art, the fault tolerance of the fuel cell is increased, the frequent shutdown frequency and the corresponding frequent startup frequency of the fuel cell are reduced, the power cell cannot be frequently switched between the discharging state and the charging state, the energy stability of whole vehicle driving can be maintained, and the service life of the cell can be prolonged.

    本发明属于燃料电池客车的电池控制技术领域,提供了一种基于燃料电池异常的整车控制方法及系统,如果只存在预设的一级故障情况,则不进行处理;如果存在预设的三级故障情况,则控制燃料电池紧急停车;如果存在预设的一级故障情况和预设的二级故障情况,或只存在预设的二级故障情况,则判断出现预设的二级故障情况次数;如果出现预设的二级故障情况次数小于预设次数,则燃料电池继续运行,否则控制燃料电池停机;增加了对燃料电池的容错度,降低了对燃料电池的频繁关机次数,以及对应的频繁开机次数,使得动力电池不会在放电状态与充电状态之间进行频繁切换,能够维持整车行驶的能量稳定性,有利于延长电池寿命。


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    Title :

    Vehicle control method and system based on fuel cell abnormity


    Additional title:

    基于燃料电池异常的整车控制方法及系统


    Contributors:
    QI HONGLEI (author) / WANG BO (author) / WANG LIN (author) / WU GUANGPING (author) / WANG BAOLONG (author) / WANG BINGHU (author) / YUE YUETENG (author)

    Publication date :

    2024-01-23


    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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