Patent ID: 7828688
Filing Date: 2010-11-09
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 first member of said second planetary gear set; a second interconnecting member continuously connecting said second member of said second planetary gear set with said third member of said third planetary gear set; six torque-transmitting devices each of which selectively interconnects a respective one of said members of said planetary gear sets with one of a stationary member and another respective one of said members of said planetary gear sets, said six torque-transmitting devices being engaged in combinations of three to establish at least ten forward speed ratios and at least one reverse speed ratio between said input member and said output member; wherein the transmission is characterized by an absence of any additional torque-transmitting device selectively interconnecting any one of said members of said planetary gear sets to one of said stationary member and any other of said members of said planetary gear sets; and wherein the transmission is characterized by an absence of any additional interconnecting member continuously interconnecting any one of said members of said planetary gear sets to any other of said members of said planetary gear sets.