A weld detection apparatus is mounted on a vehicle and measures first and second voltages of a first capacitor. The first voltage is measured when the first capacitor is charged while connected in series to a power supply and a ground of a vehicle body while switches that connect the power supply to a load circuit are controlled to be in a first state. The second voltage is measured at a predetermined timing, when the first capacitor is charged while connected in series to the power supply and the ground of the vehicle body while the switches are controlled to be in a second state different from the first state. The apparatus performs a weld detection process to decide which of the switches is welded in an ON-state when a difference between the first and second voltages is equal to or smaller than a predetermined threshold value.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    WELD DETECTION APPARATUS AND WELD DETECTION METHOD


    Beteiligte:
    KAWANAKA SHOTA (Autor:in) / TAMURA SHO (Autor:in)

    Erscheinungsdatum :

    10.08.2017


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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



    Weld detection apparatus and weld detection method

    KAWANAKA SHOTA / TAMURA SHO | Europäisches Patentamt | 2019

    Freier Zugriff

    Infrared Detection of Weld Defects

    R. K. Lewis / J. T. Norton | NTIS | 1961


    Infrared Detection of Weld Defects

    R. K. Lewis / J. T. Norton | NTIS | 1961



    Method and system for contactor weld detection

    GONZALES PHILIP MICHAEL / CALLICOAT DEBBI / KIMOTO MASAHIRO et al. | Europäisches Patentamt | 2016

    Freier Zugriff