Patent ID: 6783477
Filing Date: 2004-08-31
Classification: F16H

Abstract:
A multi-speed transmission comprising:an input shaft; an output shaft; first, second and third planetary gear sets each having first, second and third members; a first and second input clutch connected with said input shaft; a first and second torque-transmitting mechanism selectively interconnecting a first member and a second member of said first planetary gear set, respectively, with said first input clutch; a third, fourth and fifth torque-transmitting mechanism selectively interconnecting said first, second and third members of said first planetary gear set, respectively, with said first member of said second planetary gear set and said output shaft; said second member of said second planetary gear set being continuously connected with said second input clutch; a sixth and seventh torque-transmitting mechanism selectively interconnecting said first or third member of said second planetary gear set with said first and second members of said third planetary gear set, respectively; an eighth and ninth torque-transmitting mechanism selectively interconnecting said second and third members of said first planetary gear set, respectively, with a stationary member; a tenth and eleventh torque-transmitting mechanism selectively interconnecting said first and second members of said third planetary gear set, respectively, with said stationary member; an interconnecting member continuously interconnecting a member of said second planetary gear set with said third member of said third planetary gear set; and said input clutches and torque-transmitting mechanisms being engaged in combinations of at least three to provide at least six forward speed ratios and a reverse speed ratio.