The invention relates to a method for operating a high-voltage onboard electrical system (3) of a vehicle (2), comprising a protection device (8) in the event of a physical contact with one of the high-voltage potentials (HV+, HV-) and a reference potential (M) while charging a high-voltage battery (6) by means of a DC charging station (5), wherein the protection device (8) has a voltage measuring device (SV1, SV2) and a protection circuit (9). According to the invention, a galvanically coupled DC-DC converter (GW) is arranged in one of the high-voltage potentials (HV+, HV-) between the protection device (8) and a DC charging connection, and the DC charging station (5) provides a charging voltage which is lower than a nominal voltage of the high-voltage battery (6). It is ascertained whether the physical contact with the high-voltage potential (HV+, HV-) in which the DC-DC converter (GW) is arranged is being carried out between the DC-DC converter (GW) and the DC charging station (5) and this is used as a trigger criterion for actuating the protection circuit (9) and/or an additional protection circuit (9) arranged between the high-voltage potential (HV+, HV-) in which the DC-DC converter (GW) is arranged and the reference potential (M) at a position between the DC-DC converter (GW) and the DC charging connection.


    Access

    Download


    Export, share and cite



    Title :

    VERFAHREN ZUM BETRIEB EINES HOCHVOLTBORDNETZES EINES FAHRZEUGS


    Additional title:

    METHOD FOR OPERATING A HIGH-VOLTAGE ONBOARD ELECTRICAL SYSTEM OF A VEHICLE
    PROCÉDÉ DE FONCTIONNEMENT D'UN SYSTÈME ÉLECTRIQUE EMBARQUÉ HAUTE TENSION D'UN VÉHICULE


    Contributors:
    BOEHME URS (author)

    Publication date :

    2025-05-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



    VERFAHREN ZUM BETRIEB EINES HOCHVOLTBORDNETZES EINES FAHRZEUGS

    BOEHME URS | European Patent Office | 2024

    Free access

    Verfahren zum Betrieb eines Hochvoltbordnetzes eines Fahrzeugs

    BOEHME URS | European Patent Office | 2023

    Free access

    Verfahren zum Vorladen eines Hochvoltbordnetzes eines elektrisch betreibbaren Fahrzeugs

    EICHINGER ANDREAS / MAIER ANDREAS / CANDIR AKIN | European Patent Office | 2021

    Free access