Hybrid power train

The drive train (10) comprises a combustion engine (14) and a hydraulically shiftable transmission unit (16), whose input unit (18) is connected with a crankshaft (26) of the combustion engine by a coupling arrangement (24) and whose output unit (20) is connected with the driven wheels (23L,23R) of the motor vehicle (12). A pump shaft (40) is provided, which is connected with the crankshaft by a positive drive transmission (38). An electrical machine (50) is arranged in the axial direction between the positive drive transmission and a pump (46,48) of a pump arrangement.