A contactor control system includes a switching member, a high voltage load, a high voltage energy storage, a bi-directional DC/DC-converter operatively connected to the switching member, a high-voltage capacitor operatively connected to the high-voltage load, and a low voltage energy storage operatively connected to the bi-directional DC/DC-converter, wherein the switching member is adapted to connect and disconnect the high voltage energy storage to and from the high voltage load, where the bi-directional DC/DC-converter is adapted to pre-charge the high-voltage capacitor to a predefined voltage value from the low voltage energy storage before the switching member is closed and adapted to discharge the high-voltage capacitor to the low voltage energy storage when the switching member has been opened. The advantage of the invention is that a DC-link capacitor can be charged from and discharged to a low voltage battery by using a bi-directional DC/DC-converter. Energy losses can thus be minimized.


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    Titel :

    CONTACTOR CONTROL SYSTEM AND METHOD FOR CONTROLLING A CONTACTOR


    Beteiligte:

    Erscheinungsdatum :

    2020-08-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen



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