Double clutch transmission

A double clutch transmission comprising:

• first and second clutches (K1, K2) each comprising an input side connected to a drive shaft (w_an) and an output side connected to a respective one of a first and a second transmission input shaft (w_k1, w_k2) coaxially arranged with respect to one another;
• at least first and second countershafts (w_v1, w_v2) supporting toothed idler gearwheels (8, 9, 10, 11, 12, 13, 14, 15);
• a plurality of toothed fixed gearwheels (1, 2, 3, 4, 5, 6) being supported on each of the first and the second transmission input shafts (w_k1, w_k2) in a rotationally fixed manner, and the fixed gearwheels (1, 2, 3, 4, 5, 6) engaging with at least one of the idler gearwheels (8, 9, 10, 11, 12, 13, 14, 15);
• a plurality of coupling devices (A, B, C, D, E, F, G, H) for connecting an idler gearwheel (8, 9, 10, 11, 12, 13, 14, 15) to one of the first and the second countershafts (w_v1, w_v2) in a rotationally fixed manner;
• a first output gear (17) being provided on the first countershaft (w_v1) and a second output gear (18) being provided on the second countershaft (w_v2), at least one of the first output gear (17) and the second output gear (18) having at least one coupling device (S_ab1, S_ab2), and each of the first and the second output gears (17, 18) being coupled to gearing of an output shaft (w_ab) so that at least several power shiftable forward gears (1, 2, 3, 4, 5, 6, 7, 8) and at least one reverse gear (R1, R2, R3, R4, R5, R6, R7) being shiftable, and the first output gear (17), the second output gear (18) and the gearing of an output shaft (w_ab) together form an output dual gear plane (16, 17, 18) of the double clutch transmission, and the gearing of the output shaft (w_ab) being located between the first countershaft (w_v1) and the second countershaft (w_v2);
• wherein a maximum of six gear planes (8-12, 9-2, 3-13, 9-13, 10-4, 5-14, 10-14, 11-4, 11-5, 5-15, 6-15, 11-15) are provided, at least two of the maximum of six gear planes are dual gear planes (8-12, 9-13, 10-14, 11-15) and in each of the at least two dual gear planes (8-12, 9-13, 10-14, 11-15) has allocated thereto an idler gearwheel (8, 9, 10, 11, 12, 13, 14, 15) of each of the first and second countershafts (w_v1, w_v2) and a fixed gearwheel (1, 2, 3, 4, 5, 6) of one of the first and the second transmission input shafts (w_k1, w_k2), and for each of the dual gear planes (8-12, 9-13, 10-14, 11-15) at least one idler gearwheel (8, 9, 10, 11, 12, 13, 14, 15) can be used for forming at least two gears, and
• at least two of the maximum of six gear planes are single gear planes (9-2, 3-13, 10-4, 5-14, 11-4, 11-5, 5-15, 6-15) whereby an idler gearwheel (8, 10, 11, 12, 13, 14, 15) of one of the first and the second countershafts (w_v1, w_v2) is allocated to one fixed gearwheel (1, 2, 3, 4, 5, 6) of one of the first and the second transmission input shafts (w_K1, w_K2) so that at least one power shiftable winding path gear can be shifted via disengagement of the at least one coupling device (S_ab1, S_ab2) allocated to the first and the second output gears (17, 18);
• and
• the first and the second clutches (K1, K2) are axially located between the output dual gear plane (16, 17, 18) of the double clutch transmission and the maximum of six gear planes (8-12, 9-2, 3-13, 9-13, 10-4, 5-14, 10-14, 11-4, 11-5, 5-15, 6-15, 11-15).