Patent ID: 8365624

Claim:
A dual clutch transmission comprising: first and second clutches each comprising an input side connected to an input shaft (w_an) and an output side connected to one of first and second transmission input shafts (w_K 1 , w_K 2 ) coaxially arranged with respect to one another; at least first and second countershafts (w_v 1 , w_v 2 ) on which toothed gear wheels configured as idler gears ( 5 , 6 , 7 , 8 , 9 , 10 ) which are rotatably mounted; toothed gear wheels arranged in a rotationally fixed manner on the transmission input shafts (w_K 1 , w_K 2 ) and configured as fixed gears ( 1 , 2 , 3 , 4 ) at least partially meshing with the idler gears ( 5 , 6 , 7 , 8 , 9 , 10 ); a plurality of coupling devices (A, B, C, D, E, F) for connecting an idler gear ( 5 , 6 , 7 , 8 , 9 , 10 ) in a rotationally fixed manner to a countershaft (w_v 1 , w_v 2 ), an output gear ( 12 , 13 ) being provided on each of the countershafts (w_v 1 , w_v 2 ), and each of the output gears ( 12 , 13 ) being coupled to gearing of an output shaft (w_ab); at least one shift element (K, I), on at least one of the first and the second transmission input shafts (w_K 1 , w_K 2 ), for connecting two toothed gear wheels in a rotationally fixed manner with one another; a plurality of power-shifted forward gears ( 1 , 2 , 3 , 4 , 5 , 6 ) and at least one reverse gear (R 1 , R 2 , R 3 ) being engagable; first and second dual gear planes ( 5 - 8 , 7 - 10 ; 5 - 8 , 6 - 9 ); one idler gear ( 5 , 8 ; 6 , 9 ; 7 , 10 ) of the first and the second countershafts (w_v 1 , w_v 2 ) being associated with a fixed gear ( 1 , 2 , 3 , 4 ) of one of first and the second transmission input shafts (w_K 1 , w_K 2 ) for each of the first and the second dual gear planes ( 5 - 8 , 7 - 10 ; 5 - 8 , 6 - 9 ), and at least one idler gear ( 5 , 6 , 7 , 8 , 9 , 10 ) of each of the two first and the second dual gear planes ( 5 - 8 , 7 - 10 ; 5 - 8 , 6 - 9 ) being utilized for implementing at least two gears; first and second single gear planes ( 6 - 2 , 3 - 9 ; 7 - 3 , 4 - 10 ), one idler gear ( 5 , 8 ; 6 , 9 ; 7 , 10 ) of one of the countershafts (w_v 1 , w_v 2 ) being associated with a fixed gear ( 1 , 2 , 3 , 4 ) of one of the first and the second transmission input shafts (w_K 1 , w_K 2 ) such that a first at least one shift element winding path gear being shiftable via the at least one shift element (K, I) on at least one of the first and the second countershafts (w_v 1 , w_v 2 ), and a first at least one coupling device winding path gear being shiftable via at least one coupling device (S_ab 1 , S_ab 2 ) associated with the output gear ( 12 , 13 ) of one of the first and the second countershafts (w_v 1 , w_ 2 ) when the at least one coupling device (S_ab 1 , S_ab 2 )) is disengaged.