A power split structure of a hybrid vehicle is provided to optimize input speed of power transmitted to vehicle wheels in every vehicle speed ranges by properly adjusting deceleration ratio of power from an engine or an electric motor at the front side of a planetary gear set through a continuously variable transmission or a dual clutch and to increase fuel efficiency. A power split structure of a hybrid vehicle comprises an engine(100), a dynamo(120), a final drive(150), a driving motor(130), a driving shaft(101) of the engine, an input shaft(111) of a planetary gear set(110), and a continuously variable transmission(200). The driving force of the engine is transmitted to a sun gear(S) and a ring gear(R) by intermediation of a carrier(C) of the planetary gear set through the driving shaft. The dynamo is driven by power transmitted to the sun gear. The final drive is driven by the ring gear. The ring gear receives auxiliary power from power generated by the dynamo by operating the driving motor. The continuously variable transmission is installed between the driving shaft of the engine and the input shaft of the planetary gear set.
展开▼
