A diagnostic device is provided for a multi-voltage electrical system of a motor vehicle which has a first subnetwork acted on by a first voltage and a second subnetwork acted on by a second voltage, the first voltage being higher than the second voltage, and the first and the second subnetwork having a shared ground connection. The diagnostic device includes a second ground connection, a measuring unit configured to measure a current flow via the second ground connection, and a diagnostic unit configured to diagnose a disturbance in the shared ground connection and/or in the second ground connection on the basis of the measured current flow via the second ground connection as a function of at least one operating state of the vehicle electrical system.


    Access

    Download


    Export, share and cite



    Title :

    Diagnostic device for a multi-voltage vehicle electrical system, a multi-voltage vehicle electrical system, and a method for operating a multi-voltage vehicle electrical system


    Contributors:

    Publication date :

    2016-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen



    Control device for a multi-voltage vehicle electrical system

    DREMEL BENEDIKT / MIJAC ANTO | European Patent Office | 2016

    Free access

    Control device for a multi-voltage vehicle electrical system

    DREMEL BENEDIKT / MIJAC ANTO | European Patent Office | 2018

    Free access


    Vehicle high-voltage electrical system and vehicle

    TAO BAOQUAN / ZHENG WEI / ZHANG YONGQI et al. | European Patent Office | 2023

    Free access

    MULTI-VOLTAGE BATTERY DEVICE AND ELECTRICAL SYSTEM FOR A MOTOR VEHICLE

    ASCHENBRENNER TOBIAS / LAUER STEFAN | European Patent Office | 2021

    Free access