Disclosed is a power transmission system for a hybrid electric vehicle (HEV). According to an embodiment of the present invention, the power transmission system for an HEV enables acceleration driving by engine driving in high-speed driving areas to increase fuel efficiency, places a one-way clutch between an engine output shaft and a carrier shaft of a composite planetary gear set to prevent the rotational power of first and second motors/generators from affecting an engine in two EV modes without a separate clutch, and shifts the rotational power of the engine and the first motor/generator with the composite planetary gear set having two sets of integrated planet gears of different diameters sharing a planet carrier and two sun gears externally engaged with each planetary gear to implement two EV modes and two HEV parallel modes, thereby implementing a wide shift range. The power transmission apparatus comprises a composite planetary gear set, a second motor shaft gear, an output shaft, and a brake unit.

    하이브리드 차량용 동력전달장치가 개시된다. 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치는 고속 운전 영역에서 엔진 구동에 의한 증속 운전이 가능하도록 하여 연비 효율을 향상시키며, 엔진 출력축과 복합 유성기어세트의 캐리어 축 사이에 원웨이 클러치를 배치하여 별도의 클러치 없이도 2개의 EV 모드에서 제1, 제2 모터/제너레이터의 회전동력이 엔진에 영향을 미치지 않도록 하며, 유성캐리어를 공유하는 2세트의 직경이 다른 일체형 유성기어와, 각 유성기어에 외접 치합되는 2개의 선기어를 갖는 복합 유성기어세트로 엔진과 제1 모터/제너레이터의 회전동력을 변속하도록 하여 2개의 EV 모드와 2개의 HEV PARALLEL 모드를 구현하여 변속폭을 넓게 구현한다.


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    Titel :

    POWER TRANSMISSION SYSTEM OF HYBRID ELECTRIC VEHICLE


    Weitere Titelangaben:

    하이브리드 차량용 동력전달장치


    Beteiligte:

    Erscheinungsdatum :

    2023-07-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

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



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