Patent ID: 9133914
Filing Date: 2015-09-15
Classification: F16H

Abstract:
1. A planetary gear train of an automatic transmission for a vehicle, comprising: a first shaft receiving torque of an engine; a second shaft disposed in parallel with the first shaft and selectively connected to the first shaft; a first planetary gear set disposed on the first shaft, and including a first rotation element selectively operated as a fixed element, a second rotation element directly connected to the first shaft so as to be operated as an input element, and a third rotation element; a compound planetary gear set formed by combining a second planetary gear set and a third planetary gear set, and including a fourth rotation element selectively connected to the third rotation element, a fifth rotation element selectively connected to the first rotation element, a sixth rotation element directly connected to an output gear so as to be always operated as an output element, and a seventh rotation element directly connected to the second shaft and selectively connected to the third rotation element; a first transfer gear connecting the first shaft to the second shaft; a second transfer gear connecting the third rotation element to the fourth rotation element or the seventh rotation element; a third transfer gear connecting the first rotation element to the fifth rotation element; a first clutch connected between the first rotation element and the third transfer gear; a second clutch connected between the first shaft and the first transfer gear; a third clutch connected between the second transfer gear and the fourth rotation element; a fourth clutch connected between the second transfer gear and the seventh rotation element; and a first brake connected between the first rotation element and a transmission housing.