Patent ID: 6811513
Filing Date: 2004-11-02
Classification: F16H

Abstract:
A power transmission comprising:an input shaft; an output shaft; a transmission housing; a first planetary gearset including a sun gear member continuously connected with said input shaft, a planet carrier assembly member having a plurality of intermeshing pinion gear members rotatably supported on a carrier member that is continuously connected with said transmission housing, and a ring gear member, said sun gear member meshing one of said meshing pinion gear members and said ring gear member meshing with the other of said meshing pinion gear members; a second planetary gearset including first and second sun gear members, first and second interconnected ring gear members, a planet carrier assembly member having a first pinion gear member meshing with both said first sun gear member and said first ring gear member, a second planetary gear member meshing with said second sun gear member, a third planetary gear member meshing with both said second planetary gear member and said second ring gear member and a planet carrier member rotatably supporting said first, second, and third planetary gear members, and said first and second ring gear members being continuously connected with said output shaft; a first torque-transmitting mechanism selectively connectible between said ring gear member of said first planetary gearset and said first sun gear member of said second planetary gearset; a second torque-transmitting mechanism selectively connectible between said second sun gear member of said second planetary gearset and said transmission housing; a third torque-transmitting mechanism selectively connectible between said input shaft and said second sun gear member of said second planetary gearset; a fourth torque-transmitting mechanism selectively connectible between said transmission housing and said carrier member of said second planetary gearset; a fifth torque-transmitting mechanism selectively connectible between said transmission housing and said first sun gear member of said second planetary gearset; and a sixth torque-transmitting mechanism selectively connectible between said input shaft and said carrier member of said second planetary gearset.