Patent ID: 7695397
Filing Date: 2010-04-13
Classification: F16H

Abstract:
1. A multi-speed transmission comprising: an input member; an output member; first, second and third planetary gear sets each having first, second and third members; a first interconnecting member continuously connecting said third member of said first planetary gear set with said third member of said second planetary gear set; a second interconnecting member continuously connecting said second member of said second planetary gear set with said first member of said third planetary gear set; a first torque-transmitting mechanism selectively connecting said first member of said first planetary gear set with a stationary member; a second torque-transmitting mechanism selectively connecting said third member of said second planetary gear set with said stationary member; a third torque-transmitting mechanism selectively connecting said second member of said second planetary gear set with said stationary member; a fourth torque-transmitting mechanism selectively connecting said second member of said first planetary gear set with said second member of said second planetary gear set; a fifth torque-transmitting mechanism selectively connecting said second member of said first planetary gear set with said second member of said third planetary gear set; a sixth torque-transmitting mechanism selectively connecting said first member of said second planetary gear set with said second member of said third planetary gear set; said torque-transmitting mechanisms being engaged in combinations of three to establish eight forward speed ratios and one reverse speed ratio between said input member and said output member.