An electric power supply disconnecting device comprising a pyro mechanical separation device 16; a Rogowski coil 10 for detecting an event on a current line 12 connected to the pyromechanical separation device and for generating a voltage pulse in case of a detected event; circuitry 14 for processing the voltage pulse and triggering the pyrotechnical separation device 16 depending on the processing. The circuitry may comprise a comparator means (fig.2, 20) for comparing a Rogowski coil output signal with a reference signal set to a value of a fault current representing an event on the current line; and a switching means, controlled by a comparator means output signal, connected between a ground contact of the pyromechanical separation device and a predefined voltage potential. The circuitry may comprise a digital circuit (fig.3, 28) or a delay circuit (fig.2, 24) adapted to delay the output signal of the comparator means by a time span. A method providing said disconnecting device in a current line used to disconnect the power supply from a load in a vehicle, particularly an electric vehicle.


    Access

    Download


    Export, share and cite



    Title :

    An electric power supply disconnecting device and a method for disconnecting an electric power supply from a load in a vehicle


    Contributors:

    Publication date :

    2023-06-14


    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 / H01H Elektrische Schalter , ELECTRIC SWITCHES / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



    Method of disconnecting secondary battery and electric power supply system

    OYA RYOSUKE | European Patent Office | 2018

    Free access

    METHOD OF DISCONNECTING SECONDARY BATTERY AND ELECTRIC POWER SUPPLY SYSTEM

    OYA RYOSUKE | European Patent Office | 2017

    Free access

    Power Disconnecting System For Electric Automobile

    European Patent Office | 2020

    Free access

    Disconnecting switch device for protecting vehicle-mounted power supply

    MICHAEL WOTTERBERG | European Patent Office | 2023

    Free access

    POWER DISCONNECTING SYSTEM FOR ELECTRIC AUTOMOBILE

    YEON KYU YEON | European Patent Office | 2015

    Free access