The present invention relates to a power train of an electric vehicle, which comprises: a planetary gear apparatus of which a first rotational element is connected with a first shaft, a second rotational element is connected with a second shaft, and a third rotational element is connected with a third shaft, among three rotational elements; a first motor which is installed to supply constant power to the first shaft; and a second motor which is installed to supply constant power to the second shaft. The third shaft is installed to be fixable on a transmission case. Arbitrary two shafts among the first shaft, the second shaft, and the third shaft are constituted to restrain mutual rotation. The present invention minimizes capacity of a motor by providing a plurality of gear ratios while satisfying a maximum climbing performance and a maximum speed performance.

    본 발명은 3개의 회전요소 중 제1회전요소가 제1축에 연결되고 제2회전요소는 제2축에 연결되며 제3회전요소는 제3축에 연결되는 유성기어장치; 상기 제1축에 상시 동력을 공급할 수 있도록 설치된 제1모터; 상기 제2축에 상시 동력을 공급할 수 있도록 설치된 제2모터를 포함하여 구성되고, 상기 제3축은 변속기케이스에 고정 가능하게 설치되며, 상기 제1축, 제2축 및 제3축 중 임의의 두 축은 상호 회전을 구속할 수 있도록 구성된다.


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    Title :

    POWER TRAIN FOR ELECTRIC VEHICLE


    Additional title:

    전기차 파워트레인


    Contributors:

    Publication date :

    2021-10-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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