The invention discloses a current diagnosis method for a vehicle battery, comprising the following steps: a first step of acquiring a current value I0 of the vehicle battery by means of a first current acquisition unit and acquiring a current value I1 of the vehicle battery by means of a second current acquisition unit; 2, whether the collection results of the first current collection unit and the second current collection unit are valid or not is verified; step 3, if the acquisition results of the first current acquisition unit and the second current acquisition unit are valid, comparing the current value I0 with the current value I1 to judge whether the difference between the two is within a preset error range; and 4, if the difference value between the current value I0 and the current value I1 is within a preset error range, comparing the current value I0 or the current value I1 with a preset threshold value so as to judge whether the vehicle battery has an overcurrent fault or not. The invention further discloses a current diagnosis system and a vehicle battery assembly comprising the current diagnosis system.

    本发明公开了一种用于车辆电池的电流诊断方法,其中,该方法包括如下步骤:第一步骤,借助第一电流采集单元采集车辆电池的电流值I0,以及借助第二电流采集单元采集车辆电池的电流值I1;第二步骤,分别校验第一电流采集单元和第二电流采集单元的采集结果是否有效;第三步骤,如果第一电流采集单元和第二电流采集单元的采集结果均有效,则将电流值I0与电流值I1进行比较,以判断二者的差值是否处于预定的误差范围内;以及第四步骤,如果电流值I0与电流值I1之间的差值处于预定的误差范围内,则将电流值I0或电流值I1与预定的阈值进行比较,以判断车辆电池是否出现过流故障。本发明还公开了一种电流诊断系统和包括该系统的车辆电池总成。


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    Title :

    Current diagnosis method and system for vehicle battery and battery assembly


    Additional title:

    用于车辆电池的电流诊断方法和系统、电池总成


    Contributors:
    ZHAO WEIZHAN (author) / LIU BOYU (author)

    Publication date :

    2023-09-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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