The invention discloses an alarm fault processing method and system of a battery management system. The method comprises the following steps: setting a plurality of alarm levels of fault types; judging whether the alarm out-of-limit flag bit is set or not according to the sequence of the alarm levels from high to low, and if the alarm out-of-limit flag bit of the higher alarm level is set, ending the judgment of the alarm out-of-limit flag bit; otherwise, continuing to judge whether the alarm out-of-limit flag bit of the lower alarm level is set or not until the judgment on whether the alarm out-of-limit flag bits of all the alarm levels are set or not is completed; and after judging whether the alarm out-of-limit flag bit corresponding to the fault type is set or not, controlling the relay. According to the invention, the fault diagnosis of the BMS is carried out in one subprogram module, the control of the relay is carried out in the other subprogram module for independent operation, and detailed diagnosis and control processes are formulated, so that the fault processing is clearer and more reliable.

    本发明公开了一种电池管理系统的告警故障处理方法及系统,设置故障类型的多个告警等级;根据告警等级的级别从高到低的顺序,进行告警越限标志位是否置位的判断,若高一级的告警等级的告警越限标志位被置位,则结束告警越限标志位的判断;否则继续判断低一级告警等级的告警越限标志位是否置位,直至完成所有告警等级的告警越限标志位是否置位的判断;对应故障类型的告警越限标志位是否置位的判断完成后,进行继电器的控制。本发明将BMS的故障诊断放在一个子程序模块中,另外将继电器的控制放在另外一个子程序模块独立运行,并且制定详细的诊断和控制流程,使得故障处理更加清晰可靠。


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    Title :

    Alarm fault processing method and system of battery management system


    Additional title:

    一种电池管理系统的告警故障处理方法及系统


    Contributors:
    HUANG MENG (author) / ZHU FEIXIONG (author) / WANG SEN (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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