Patent ID: 8038564
Filing Date: 2011-10-18
Classification: F16H,Y10T

Abstract:
1. A transmission comprising: an input member; an output member; a gearing arrangement including a first gear set, a second gear set, a third gear set and a first countershaft, wherein the first gear set is selectively connectable to the first countershaft and the third gear set includes an idler gear; a planetary gear set having a first member, a second member, and a third member; a first interconnecting member continuously interconnected to the input member; a second interconnecting member continuously interconnected to the first, second, and third gear sets; a third interconnecting member continuously interconnected to the third member of the planetary gear set; four torque transmitting devices each selectively engageable to interconnect at least one of the interconnecting members, the first countershaft and the first, second and third members of the planetary gear set with at least another one of the interconnecting members, the first countershaft and a stationary member; two synchronizers, wherein a first of the two synchronizers selectively couples the first gear set and at least one of the second and third gear sets with the first countershaft; and wherein the torque-transmitting mechanisms and synchronizer are selectively engageable in combinations of at least two to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member.