| 摘要 |
The invention proposes a dual-clutch transmission having two clutches (K1, K2), the input sides of which are connected to a drive shaft (w_an) and the output sides of which are connected to in each case one of two transmission input shafts (w_K1, w_K2) which are arranged coaxially with respect to one another. Furthermore, at least two countershafts (w_v1, w_v2) are provided, on which movable gears (i 2, i3, i4, i5, iR) are mounted rotatably. The dual-clutch transmission comprises fixed gears (F1, F2, F3) which are arranged fixedly on the two transmission input shafts (w_K1, w_K2) so as to rotate with them and are in engagement with the movable gears, and in each case one output gearwheel (i ab1, i ab2) which is provided on the two countershafts (w_v1, w_v2) and is coupled in each case to a toothing system of an output shaft (w_ab), wherein the output shaft (w_ab) is not arranged coaxially with respect to the drive shaft (w_an). In addition, a plurality of shifting elements (S1, S2, S3) are provided, with the result that at least six power-shift forward gears (1, 2, 3, 4, 5, 6) and at least one reverse gear (R1, R2) can be shifted. According to the invention, only three double-acting shifting elements (S1, S2, S3) are provided, wherein each double-acting shifting element (S1, S2, S3) is assigned two movable gears (i2, i3, i4, i5, iR) of the countershafts (w_v1, w_v2), wherein one of the shifting elements (S1) connects a movable gear (i3) to the associated countershaft (w_v1) in a first active direction (S1 a) and connects the two associated movable gears (i3, i4) to one another in a second active direction (S1 b), and wherein two shifting elements (S2, S3) in each case connect the associated movable gears (i2, i5; i4, iR) fixedly to the associated countershafts (w_v1, w_v2) so as to rotate with them. |
