Patent ID: 6849017

Claim:
A drive unit ( 20 ) comprising: a superposition drive ( 14 ) comprising a first input shaft ( 17 ) for establishing a drive connection with a primary drive source, a second input shaft ( 18 ) and an output shaft ( 19 ), an electric motor ( 15 ) having a rotor ( 22 ) and a stator ( 23 ), the electric motor being a secondary drive source, one of the rotor or stator being connected to the second input shaft ( 18 ) of the superposition drive ( 14 ) and the other of the rotor or stator being connected to a further rotating member of the superposition drive ( 14 ), and wherein the superposition drive ( 14 ) is a planetary drive with a carrier shaft, a sun sear ( 25 ), at least one planetary gear ( 31 ) and a hollow gear ( 35 ), wherein the first input shaft ( 17 ) comprises the carrier shaft and rotatably carries the at least one planetary gear ( 31 ) which is arranged eccentrically, the second input shaft ( 18 ) is connected to the sun gear ( 25 ) in a rotationally fast way, and the hollow gear ( 35 ) is connected to the output shaft ( 19 ) in a rotationally fast way.