Patent ID: 9365102
Filing Date: 2016-06-14
CPC Classification: B60K,Y02T,Y10S

Claim Text:
1. A power transmission system of a hybrid electric vehicle which uses an engine and first and second motor/generators as power sources, comprising: an input device including a first input shaft receiving torque of the engine and a second input shaft disposed without rotational interference with the first input shaft; a planetary gear set including a first rotation element directly connected to the second input shaft, a second rotation element directly connected to the first input shaft, and a third rotation element; a supplemental input device including a first intermediate shaft disposed in parallel with and apart from the first and second input shafts and operably connected to the first motor/generator and the second input shaft, and a second intermediate shaft disposed without rotational interference with the first intermediate shaft and operably connected to the second motor/generator; a friction member selectively connecting the first intermediate shaft to a transmission housing; an output device operably connected to the input device and the supplemental input device and outputting torque transmitted from the input device or the supplemental input device; and a final reduction device decelerating torque transmitted from the output device and outputting the decelerated torque; a first input gear fixedly disposed on the second input shaft; and a second input gear directly connected to the third rotation element of the planetary gear set, wherein the supplemental input device comprises: wherein the first intermediate shaft is a hollow shaft and the second intermediate shaft penetrates through the first intermediate shaft.