A ground fault detection device connected to a high-voltage battery and a positive electrode side Y capacitor includes: a detection capacitor operating as a flying capacitor, a first switch and a first resistor connecting a positive electrode side of the high-voltage battery and one end of the detection capacitor in series, and a discharge circuit including at least a discharge capacitor. The discharging circuit has one end connected to the positive electrode side of the high-voltage battery and an another end connected to the negative electrode side of the high-voltage battery. The discharge circuit further includes: a fifth switch that connects one end of the discharge capacitor and the positive electrode side Y capacitor, and a second discharge resistor and an eighth switch that connect the another end of the discharge capacitor and the ground in series.


    Access

    Download


    Export, share and cite



    Title :

    GROUND FAULT DETECTION DEVICE


    Contributors:

    Publication date :

    2021-09-16


    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 device

    YAMAGUCHI HIROYUKI | European Patent Office | 2023

    Free access

    GROUND FAULT DETECTION DEVICE

    MOCHIZUKI YASUYUKI / SUDO GIOSU / YOSHIDA HARUHIKO et al. | European Patent Office | 2022

    Free access

    GROUND FAULT DETECTION DEVICE

    YAMAGUCHI HIROYUKI | European Patent Office | 2021

    Free access

    GROUND FAULT DETECTION DEVICE

    KAWAMURA YOSHIHIRO | European Patent Office | 2021

    Free access

    Ground fault detection device

    KAWAMURA YOSHIHIRO | European Patent Office | 2023

    Free access