Patent ID: 9701301
Date: 2017-07-11
CPC Classifications: B60W,Y10T

Claim:
1. A method of operating a motor vehicle having a dual-clutch transmission ( 3 ) that includes a first partial transmission ( 4 ) with a first transmission input shaft ( 5 ) and a second partial transmission ( 6 ) with a second transmission input shaft ( 7 ), and the dual-clutch transmission ( 3 ) comprises a first powershiftable friction clutch ( 9 ) associated with the first transmission input shaft ( 5 ) which, in an engaged condition thereof, couples the first transmission input shaft ( 5 ) and hence the first partial transmission ( 4 ) to a drive input shaft ( 11 ), and a second powershiftable friction clutch ( 10 ) associated with the second transmission input shaft ( 7 ) which, in an engaged condition thereof, couples the second transmission input shaft ( 7 ) and hence the second partial transmission ( 6 ) to the drive input shaft ( 11 ), and, the dual-clutch transmission ( 3 ) has an output shaft ( 8 ) that is common to both of the first and the second partial transmissions ( 4 , 6 ), and, during a rocking free operating mode for rocking the motor vehicle free, in one of the first and the second partial transmissions a gear for a primary travel direction specified by a driver and, at a same time, in the other of the first and the second partial transmissions a gear for an opposite, secondary travel direction are engaged, and, the powershiftable clutches ( 9 , 10 ) are alternately disengaged and engaged, the method comprising: for rocking free of the motor vehicle, engaging the powershiftable clutch ( in contrast, if the driver neither actuates the accelerator pedal nor a brake pedal, automatically engaging the powershiftable clutch (