The invention relates to a motor vehicle having a first vehicle electrical system (8) with a first voltage source (10), which provides a first vehicle-electrical-system voltage, and a second vehicle electrical system (9) with a second voltage source (17), which provides a second vehicle-electrical-system voltage different from the first vehicle-electrical-system voltage, wherein both vehicle-electrical-system voltages are direct voltages, wherein at least one system-isolating device connects a connection point (1, 14) of the first vehicle electrical system (8) and a connection point (4, 16) of the second vehicle electrical system (9), wherein the system-isolating device comprises at least one semiconductor component (2, 3, 12, 13, 20, 21, 24, 25), wherein the system-isolating device has a reverse direction, in which substantially no current transport occurs below a breakdown voltage, and a forward direction, in which current transport occurs above a minimum voltage. The forward direction of the system-isolating device is directed from the first vehicle electrical system (8) into the second vehicle electrical system (9), and thus a first signal can be transferred from the first vehicle electrical system (8) into the second vehicle electrical system (9) by controlling a voltage at the connection point (1, 14) of the first vehicle electrical system (8) and/or a second signal can be transferred from the second vehicle electrical system (9) into the first vehicle electrical system (8) by controlling a controllable impedor (15, 23) between the connection point (4, 16) of the second vehicle electrical system and a reference potential (6), which forms a common reference potential (6) for both vehicle electrical systems (8, 9).


    Access

    Download


    Export, share and cite



    Title :

    Motor vehicle having two vehicle electrical systems with different vehicle-electrical-system voltages


    Contributors:

    Publication date :

    2015-12-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung





    Motor vehicle electrical system and vehicle with a motor vehicle electrical system

    TAZARINE WACIM / GRONWALD FRANK / BETSCHER SIMON | European Patent Office | 2023

    Free access

    Motor Vehicle Electrical System and Vehicle with a Motor Vehicle Electrical System

    TAZARINE WACIM / GRONWALD FRANK / BETSCHER SIMON | European Patent Office | 2019

    Free access

    Vehicle electrical system for a motor vehicle and motor vehicle

    STRASSER ROMAN | European Patent Office | 2019

    Free access