The disclosure provides a system and method for charger contactor double weld detection. A vehicle includes charger contactors configured to selectively electrically couple terminals for connecting to a charger to corresponding terminals of a high-voltage bus. The vehicle includes a precharge contactor configured to selectively couple a terminal of a battery to the high-voltage bus through an impedance element. The vehicle includes a controller programmed to command the charger contactors to an open state for a drive cycle and command the precharge contactor to close at a start of the drive cycle and, responsive to a voltage across the terminals for connecting to the charger changing from being less than a first predetermined voltage immediately prior to the precharge contactor being closed to being greater than a second predetermined voltage at a completion of precharging, inhibit vehicle operation and disconnect the battery from the high-voltage bus.

    本公开提供了“用于充电器接触器双焊接检测的系统和方法”。一种车辆包括:充电器接触器,所述充电器接触器被配置为将用于连接到充电器的端子选择性地电耦合到高压总线的对应端子。所述车辆包括预充电接触器,所述预充电接触器被配置为通过阻抗元件将电池的端子选择性地耦合到所述高压总线。所述车辆包括控制器,所述控制器被配置为命令所述充电器接触器进入断开状态持续一个驾驶循环并命令所述预充电接触器在所述驾驶循环开始时闭合,并且响应于用于连接到所述充电器的所述端子上的电压从紧接在所述预充电接触器闭合之前小于第一预定电压改变为在预充电完成时大于第二预定电压,禁止车辆操作并将所述电池与所述高压总线断开连接。


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    Titel :

    SYSTEM AND METHOD FOR CHARGER CONTACTOR DOUBLE WELD DETECTION


    Weitere Titelangaben:

    用于充电器接触器双焊接检测的系统和方法


    Beteiligte:
    WANG RUI (Autor:in) / WALKER AARON (Autor:in) / ZHANG YUAN (Autor:in)

    Erscheinungsdatum :

    2021-06-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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