A diagnostic device for checking a control signal wire between a controller of a motor vehicle and a charging port for a battery of the motor vehicle located on the motor vehicle side is disclosed, wherein on the charging port side, a first resistor is provided in the controller connecting the control signal wire to chassis ground, and a second resistor connected in parallel to the first resistor is provided. An evaluation device of the controller has a current source and/or a voltage source for supplying an electric current and/or a voltage independent of a charging process, and is configured to measure an electric current indicating a defect in the control signal wire, or a voltage indicating a defect in the control signal wire, utilizing the first and the second resistor.


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    Title :

    Diagnoseeinrichtung und Diagnoseverfahren zur Überprüfung einer Steuersignalleitung


    Additional title:

    Diagnostic device and diagnostic method for checking a control signal line
    Procédé et système de diagnostic servant à contrôler une ligne de signal de commande


    Contributors:
    ZAKI SAMI (author) / SCHALLI NIKLAS (author)

    Publication date :

    2016-03-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

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




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