Patent ID: 9387754
Filing Date: 2016-07-12
CPC Classification: B60K,F16H,Y02T,Y10S

Claim Text:
1. A transmission system of a hybrid electric vehicle comprising: an input shaft connected to an engine; a planetary gear set including a first rotation element operated as an output element, a second rotation element connected to the input shaft and operated as an input element, and a third rotation element operated as another output element; a first motor shaft disposed in parallel to and apart from the input shaft, operably connected to the first rotation element, and selectively connected to a transmission housing; a first motor/generator disposed on the first motor shaft and configured to generate electric energy by receiving torque through the first motor shaft; a second motor shaft disposed without rotational interference with the first motor shaft and operably connected to the third rotation element to receive torque of the engine; a second motor/generator disposed on the second motor shaft and outputting torque through the second motor shaft; a first intermediate output gear directly connected to the first rotation element; a second intermediate output gear directly connected to the third rotation element; a first motor shaft gear engaged with the first intermediate output gear and fixedly disposed on the first motor shaft; and a second motor shaft gear engaged with the second intermediate output gear and fixedly disposed on the second motor shaft.