Patent ID: 7998014
Filing Date: 2011-08-16
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 first member of said second planetary gear set with said first member of said third planetary gear set; a second interconnecting member continuously connecting said second member of said second planetary gear set with said second member of said third planetary gear set; said second member of said first planetary gear set being continuously connected with a stationary member; six torque-transmitting devices each operable to selectively interconnect a respective one of said members of said planetary gear sets with said stationary member, or with another respective one of said members of said planetary gear sets, said six torque-transmitting devices being engaged in combinations of two to establish at least eight forward speed ratios and at least one reverse speed ratio between said input member and said output member; wherein a first of said six torque-transmitting devices is operable for selectively connecting said first member of said second planetary gear set with said stationary member; and wherein a second of said six torque-transmitting devices is operable for selectively connecting said second member of said second planetary gear set with said stationary member.