Patent ID: 7850569

Claim:
A gear train of an automatic transmission for a vehicle, comprising: a first planetary gear set of a simple planetary gear set that receives an input speed from an input shaft through a first input path and outputs a reduced speed through a first intermediate output path; a second planetary gear set of a simple planetary gear set that receives the reduced speed of the first intermediate output path of the first planetary gear set through a first intermediate input path and selectively outputs through a second intermediate output path a same speed as or a reversed speed of the reduced speed received through a first intermediate output path; and a third planetary gear set of a compound planetary gear set that receives the reduced speed of the first planetary gear set through a first intermediate variable input path, the input speed from the input shaft through a second intermediate variable input path, and/or the output speed of the second planetary gear set through a second intermediate input path, and then outputs a shifted output speed through a main output path, wherein the second intermediate output path is always connected with the second intermediate input path.