The invention discloses a high-voltage discharge system of an electric vehicle. The high-voltage discharge system comprises a motor, an inverter, a high-voltage battery, a high-voltage relay, a high-voltage capacitor, a high-voltage discharge resistor and a controller; the direct current ends of the inverter are connected to the high-voltage battery through the high-voltage relay, and the alternating current end of the inverter is connected to the three-phase alternating current port of the motor; the high-voltage capacitor and the high-voltage discharge resistor are connected in parallel between the two direct current ends of the inverter; after receiving an active discharge request signal, the controller controls the inverter to perform active discharge to the high-voltage capacitor; active discharge diagnosis timing is started, the inverter stops active discharge if the voltage between the two ends of the high-voltage capacitor is less than or equal to the safety discharge threshold voltage within a first duration after the start; the inverter stops active discharge and an active discharge overtime fault signal of the inverter is outputted if the voltage between the two ends of the high-voltage capacitor is greater than the safety discharge threshold voltage after the first duration after the start. The high-voltage discharge system of the electric vehicle performs high-voltage discharge safely and reliably.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    High-voltage discharge system of electric vehicle


    Beteiligte:
    GAO ZHI (Autor:in) / ZHANG DONGHAI (Autor:in) / QIAN XIAOJUN (Autor:in)

    Erscheinungsdatum :

    20.05.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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




    Bus voltage discharge control method and system for electric vehicle

    LIU LEI / NIU RURU / JIANG YING et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Electric power system of vehicle with quick discharge of a high-voltage condenser

    TSUJI NAOTAKA / TAKAHASHI MASAYA | Europäisches Patentamt | 2020

    Freier Zugriff

    High-voltage discharge method and device, vehicle control unit and new energy electric vehicle

    TAO WENYONG / SHA WENHAN / WANG YING et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    ELECTRIC VEHICLE HIGH-VOLTAGE SYSTEM ALERT

    LOVETT KARIN / TISTLE CATHLEEN / TREHARNE WILLIAM DAVID | Europäisches Patentamt | 2016

    Freier Zugriff