Patent ID: 6217474
Filing Date: 2001-04-17
Classification: F16H

Abstract:
A multi speed transmission comprising:an input shaft;an output shaft;a first simple planetary transmission having a sun gear member, a ring gear member and a carrier assembly member including a plurality of rotatably mounted pinion gear members disposed in meshing relation with both the sun gear member and the ring gear member, said sun gear member being continually drivingly connected with said input shaft;a second simple planetary transmission having a sun gear member, a ring gear member and a carrier assembly member including a plurality of rotatably mounted pinion gear members disposed in meshing relation with both the sun gear member and the ring gear member, said sun gear member being continually drivingly connected with said ring gear member of said first simple planetary gear set;a third simple planetary transmission having a sun gear member, a ring gear member and a carrier assembly member including a plurality of rotatably mounted pinion gear members disposed in meshing relation with both the sun gear member and the ring gear member, said carrier assembly member being continually drivingly connected with both said output shaft and said ring gear member of said second simple planetary gear set, said ring gear member being continually drivingly connected with said carrier assembly member of said second simple planetary gear set;a first selectively engageable torque transmitting mechanism selectively connectable between said input shaft and said carrier assembly member of said first simple planetary gear set;a second selectively engageable torque transmitting mechanism selectively connectable between said input shaft and said sun gear member of said third simple planetary gear set;a third selectively engageable torque transmitting mechanism selectively connectable between a transmission housing and said carrier assembly member of said first simple planetary gear set;a fourth selectively engageable torque transmitting mechanism selectively connectable between a transmission housing and said ring gear member of said first simple planetary gear set and said sun gear member of said second simple planetary gear set; anda fifth selectively engageable torque transmitting mechanism selectively connectable between a transmission housing and said carrier assembly member of said second simple planetary gear set and said ring gear member of said third simple planetary gear set.