Patent ID: 6558287
Filing Date: 2003-05-06
Classification: F16H

Abstract:
An automatic transmission for a vehicle, comprising:a first input path having a fixed first speed ratio with respect to a rotation of an input shaft; a second input path having a fixed second speed ratio which is larger than the first speed ratio; a planetary gear set of four elements comprising a combination of a plurality of planetary gears, the four elements of the planetary gear set being, in order of rotational speed, a first element, a second element, a third element, and a fourth element; a second clutch transmitting a rotation from the second input path to the first element; a first clutch transmitting the rotation from the second input path to the fourth element; a fourth clutch transmitting a rotation from the first input path to the first element; a third clutch transmitting the rotation from the first input path to the second element; a first brake engaging the fourth element; a second brake engaging the second element; and an output member coupled with the third element.