Patent ID: 8051735

Claim:
An automated split path transmission having at least six forward speeds, a group of sequentially following high forward speeds (G 5 , G 6 , G 7 , G 8 ) with low transmission steps (S III ) of about the same size and a group of sequentially following low forward speeds (G 1 , G 2 , G 3 ,) with high transmission steps (S I ), and at least one transmission speed (G 4 ) with an intermediate transmission step (S II ) disposed between the group (S I ) of speeds with high transmission steps and the group (S III ) of transmission speeds with low transmission steps, the intermediate transmission step (S II ) having a value which difffers less than 2.9% from that of the low transmission steps (S III ) to the power of three half (S II ≈S III (3/2) ), one of the high forward speeds (G 7 ) being a direct gear, one of the forward speeds (G 5 ) having a power path passing through two constant gear sets (C 1 , C 2 ) of a split path group, and the gears being shiftable by clutch rings ( 25 , 26 , 27 , 28 ) with automated means for actuating the clutch rings, to perform the shifting between the speeds.