Patent ID: 7198587
Filing Date: 2007-04-03
Classification: F16H

Abstract:
1. A multi-speed transmission for a vehicle comprising: an input shaft; an output shaft; a plurality of planetary gear sets operatively connected between the input shaft and output shaft, each having a ring gear member, a planet carrier assembly member and a sun gear member; a selectable braking one-way clutch for braking rotation of one of said members of said planetary gear sets when the transmission is in reverse and first speeds; a first rotating input clutch operatively engageable with one of said planetary gear sets which is directly connected with said input shaft for enabling the input shaft to carry torque into the transmission, wherein said first rotating input clutch is slipped for launching the vehicle in first speed; a second rotating input clutch operatively engageable with said one of said planetary gear sets which is directly connected with said input shaft for enabling the input shaft to carry torque into the transmission, wherein said second rotating input clutch is slipped for launching the vehicle in reverse; and wherein the transmission is characterized by the absence of a torque converter.