A ground fault detection apparatus includes a control unit, a detection capacitor, a positive-electrode-side first resistor connected to positive-electrode side of a high-voltage battery, a negative-electrode-side first resistor connected to negative-electrode side, a positive-electrode-side second resistor having one end grounded and another end, voltage of which being measured by the control unit, a negative-electrode-side second resistor having one end grounded, a positive-electrode-side C contact switch as a twin relay that alternatively switches connection destination of one end of the detection capacitor between a path including the positive-electrode-side first resistor and a path including the positive-electrode-side second resistor based on instruction from the control unit, and a negative-electrode-side C contact switch as a twin relay that alternatively switches connection destination of another end of the detection capacitor between a path including the negative-electrode-side first resistor and a path including the negative-electrode-side second resistor based on instruction from the control unit.


    Access

    Download


    Export, share and cite



    Title :

    GROUND FAULT DETECTION APPARATUS


    Contributors:

    Publication date :

    2019-10-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



    Ground fault detection apparatus

    KAWAMURA YOSHIHIRO | European Patent Office | 2020

    Free access

    Ground fault detection apparatus

    KAWAMURA YOSHIHIRO | European Patent Office | 2020

    Free access

    GROUND FAULT DETECTION APPARATUS

    KAWAMURA YOSHIHIRO | European Patent Office | 2019

    Free access

    GROUND FAULT DETECTION APPARATUS

    KAWAMURA YOSHIHIRO | European Patent Office | 2019

    Free access

    Ground fault detection apparatus

    KAWAMURA YOSHIHIRO | European Patent Office | 2020

    Free access