Patent ID: 8333126

Claim:
A dual clutch transmission comprising: a first input shaft; a second input shaft; a first drive shaft; a second drive shaft; a third drive shaft; an output gear wheel that meshes with a first gear wheel fixed to the first drive shaft, a second gear wheel fixed to the second drive shaft, and a third gear wheel fixed to the third drive shaft; and a plurality of driving gear speeds; wherein a respective gear wheel connection is allocated to each one of the driving gear speeds, each of these gear wheel connections comprising a respective loose wheel and fixed wheel; a shiftable step wheel is provided on the second drive shaft, the step wheel comprising a first gear wheel and a second gear wheel; the loose wheel of a reverse driving gear speed of the plurality of driving gear speeds is provided on the third drive shaft and engages the first gear wheel of the step wheel; the fixed wheel of a second forward driving gear speed of the plurality of driving gear speeds is provided on one of the input shafts and is engaged by the second gear wheel of the step wheel; and the step wheel is switchable by a first gear shifting clutch that is provided on the second drive shaft, said first gear shifting clutch being designed as a first single gear shifting clutch that selectively connects only the step wheel in a rotationally fixed manner to the second drive shaft such that the step wheel co-rotates with the second drive shaft.