The present invention relates to a motor driving device of a vehicle which prevents inrush currents from being generated without a charge/discharge circuit, and can charge electric charges to a DC capacitor regardless of on/off of an ignition device. The motor driving device of a vehicle according to one embodiment of the present invention comprises: a relay which is serially connected to a battery of a vehicle; a protection unit which is serially connected to the battery, and connected to the relay in parallel; a micro controller unit (MCU) which controls on/off of the relay; a DC link capacitor which is serially connected to the relay and the protection unit, and is charged by means of electric charges input from the battery via the protection unit; and an inverter which is connected to the DC link capacitor in parallel, and converts DC voltage input from the battery into AC voltage to supply the same to a brushless alternating current (BLAC) motor.

    본 발명은 충전(Charge)/방전(Discharge) 회로 없이도 돌입 전류(inrush crrent)의 발생을 방지하여, 점화(ignition) 장치의 온(on)/오프(off)에 상관없이 DC 커패시터에 전하를 충전시킬 수 있는 차량의 모터 구동 장치에 관한 것이다. 본 발명의 실시 예에 따른 차량의 모터 구동 장치는 차량의 배터리와 직렬로 연결된 릴레이와; 상기 배터리와는 직렬로 연결되고, 상기 릴레이와는 병렬로 연결된 보호부와; 상기 릴레이의 온(on)/오프(off)를 제어하는 MCU(micro controller unit)와; 상기 릴레이 및 상기 보호부와 직렬로 연결되어 있고, 상기 배터리로부터 상기 보호부를 경유하여 입력된 전하가 충전되는 직류 링크 커패시터; 및 상기 직류 링크 커패시터와 병렬로 연결되어 있고, 상기 배터리에서 입력된 직류 전압을 교류 전압으로 변환하여 BLAC(Brushless Alternating Current) 모터에 공급하는 인버터;를 포함한다.


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    Title :

    Apparatus for Motor Driving Of Vehicle


    Additional title:

    차량의 모터 구동 장치


    Contributors:
    KIM TAE WOOK (author) / LEE SU MIN (author)

    Publication date :

    2018-02-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

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



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