PROBLEM TO BE SOLVED: To reliably discharge the residual change in a smoothing capacitor included in a power supply system of an electric vehicle when the vehicle collides.SOLUTION: In each of an MG-ECU 300 and an HV-ECU 400, if a voltage on an auxiliary-equipment power supply line 135 (i.e., an auxiliary-equipment power supply voltage) instantaneously drops to a reset voltage or lower, a reset operation is automatically started to execute initialization processing. If DC currents VH, VL of smoothing capacitors C1, C2 are higher than a given reference voltage after resetting operation of the MG-ECU 300 and/or HV-ECU 400, the MG-ECU 300 starts forced discharge control by a converter 110.SELECTED DRAWING: Figure 1

    【課題】電動車両衝突の発生時に、電動車両の電源システム内の平滑コンデンサの残留電荷を確実に放電する。【解決手段】MG−ECU300およびHV−ECU400の各々では、補機電源ライン135上の電圧(補機電源電圧)が瞬間的にリセット電圧よりも低下すると、自動的にリセット動作が起動されて、初期化処理が実行される。MG−ECU300は、MG−ECU300および/またはHV−ECU400のリセット動作後に、平滑コンデンサC1,C2の直流電圧VH,VLが所定の基準電圧よりも高いときには、コンバータ110による強制放電制御を起動する。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    ELECTRIC-VEHICULAR POWER SUPPLY SYSTEM


    Additional title:

    電動車両の電源システム


    Contributors:
    OBA SATOKO (author) / UCHIDA KENJI (author) / TERAO YASUHIRO (author)

    Publication date :

    2017-04-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Vehicular electric power supply system

    TAOKA YASUHIRO / TERADA YASUHARU / ITO TAKAHIRO | European Patent Office | 2021

    Free access

    ELECTRIC-VEHICULAR POWER SUPPLY SYSTEM

    ONO TOSHIKAZU | European Patent Office | 2017

    Free access

    VEHICULAR ELECTRIC POWER SUPPLY SYSTEM

    TAOKA YASUHIRO / TERADA YASUHARU / ITO TAKAHIRO | European Patent Office | 2019

    Free access

    VEHICULAR ELECTRIC POWER SUPPLY SYSTEM

    TAOKA YASUHIRO / TERADA YASUHARU / ITO TAKAHIRO | European Patent Office | 2021

    Free access

    ELECTRIC-VEHICULAR POWER SUPPLY SYSTEM

    MACHIDA KIYOHITO | European Patent Office | 2016

    Free access