The invention discloses a method for preventing a power battery system from mistakenly reporting a fault, a battery management system, a vehicle and a medium. The method comprises the following steps: acquiring a vehicle control unit validity signal and a Counter verification message of the vehicle control unit; identifying whether the power battery system is in a single-pack mode or a whole vehicle mode according to the acquired information; if the power battery system is in the single-pack mode, communication type fault diagnosis on the signal of the vehicle control unit is stopped, other functions are normally operated, and the signal indicating that the power battery system is in the single-pack mode is sent out; if the power battery system is in the whole vehicle mode, communication type fault diagnosis continues to be carried out on the signals of the whole vehicle controller, other functions operate normally, and the signals indicating that the power battery system is in the whole vehicle mode are sent out. According to the invention, false alarm of communication faults during offline detection or maintenance detection or bench test can be avoided, the efficiency of offline detection and maintenance detection and the fault diagnosis accuracy are improved, and normal operation of the bench test is ensured.
本发明公开了一种防止动力电池系统误报故障的方法、电池管理系统、车辆及介质,所述方法包括:获取整车控制器有效性信号和整车控制器的Counter校验报文;根据获取的信息识别动力电池系统是处于单包模式还是处于整车模式;若处于单包模式,则停止对整车控制器信号进行通讯类故障诊断,其他功能正常运行,并将动力电池系统处于单包模式的信号发送出去;若处于整车模式,则继续对整车控制器信号进行通讯类故障诊断,且其他功能正常运行,并将动力电池系统处于整车模式的信号发送出去。采用本发明能避免在下线检测或者维修检测或者台架试验时误报通讯类故障,提升下线检测、维修检测的效率和故障诊断准确度,保证台架试验正常进行。
Method for preventing false alarm fault of power battery system, battery management system, vehicle and medium
防止动力电池系统误报故障的方法、电池管理系统、车辆及介质
19.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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