Patent ID: 8056442

Claim:
All-wheel drivetrain for a motor vehicle, which has at least two driven axles, comprising a characteristic torque converter transmission of longitudinal construction, to the input side of which drive power is fed and which serves for converting a characteristic of a drive engine, and the output side of which is connected to a transfer device, by means of which the drive power can be distributed to the two axles, the characteristic torque converter transmission having an output shaft which is connected to a first drive shaft for the first axle, and a countershaft parallel thereto, the output shaft and the countershaft being connected to one another by means of a first constant transmission ratio, and the countershaft being connected by means of a second constant transmission ratio to a second drive shaft for the second axle, wherein the transfer device is arranged coaxially with the second drive shaft, wherein the transfer device is designed to transmit drive power permanently to the first of the two axles and variably to the second axle by means of a selective engagement clutch, the selective engagement clutch being arranged coaxially with the second drive shaft, and wherein the selective engagement clutch has an input member which is connected to an intermediate shaft which is concentric with the second drive shaft, and has an output member which is connected to the second drive shaft.