Patent ID: 9702437
Date: 2017-07-11
CPC Classifications: B60K,F16H,Y02T,Y10S

Claim:
1. A power transmission system of a hybrid electric vehicle comprising: an engine; first and second motor/generators; an input shaft connected to and receiving torque of the engine; an intermediate shaft parallel with and apart from the input shaft; an output shaft parallel to and relatively rotatable with respect to the intermediate shaft; a first planetary gear set including a first rotation element connected to the first motor/generator, a second rotation element connected to the output shaft, and a third rotation element directly connected to the input shaft; a second planetary gear set including a fourth rotation element connected to the second motor/generator through the intermediate shaft, a fifth rotation element directly connected to the output shaft, and a sixth rotation element selectively connected to at least one of the input shaft, the first rotation element and a transmission housing; a first transfer gear connecting the second rotation element with the output shaft; a second transfer gear connecting the input shaft or the first rotation element with the sixth rotation element; and a first clutch selectively connecting two rotation elements among three rotation elements of the second planetary gear set.