A method for detecting an insulation fault in a vehicle on-board electrical system having an HV on-board electrical system branch and an LV on-board electrical system branch provides for the LV on-board electrical system branch to have a positive supply potential and a negative supply potential that corresponds to a ground potential of the vehicle on-board electrical system. The HV on-board electrical system branch has a positive HV potential and a negative HV potential which are DC-isolated from the potentials of the LV on-board electrical system branch. An insulation fault between at least one of the HV potentials and a positive LV potential is detected by identifying a current flow through a voltage limiting circuit connected between the ground potential and the positive LV potential.


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    Title :

    VERFAHREN ZUM ERFASSEN EINES ISOLATIONSFEHLERS IN EINEM FAHRZEUGBORDNETZ


    Additional title:

    METHOD FOR DETECTING AN INSULATION FAULT IN A VEHICLE ON-BOARD ELECTRICAL SYSTEM
    PROCÉDÉ POUR DÉTECTER UN DÉFAUT D'ISOLEMENT DANS UN RÉSEAU DE BORD DE VÉHICULE


    Contributors:

    Publication date :

    2023-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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