HYBRID DRIVE TRAIN OF A MOTOR VEHICLE

摘要

The invention relates to a hybrid drive train of a motor vehicle, having a series arrangement of an internal combustion engine, a first electric machine which can be operated predominantly as a generator, a second electric machine which can be operated predominantly as an electric motor, and a final drive, and having a driving battery which can be connected to the two electric machines via switchable lines and an electronic power system, and having a control unit for controlling the energy flow between the electric machines and the driving battery. In order to achieve compact dimensions and improved efficiency, there is provision for the two electric machines to be combined in an electromagnetic gear mechanism (6) having a rotatably mounted drive rotor (7) which is connected to an input shaft, having a rotatably mounted output rotor (8) which is connected to an output shaft, and having a common stator (9) which is connected fixedly in terms of rotation to a housing component and is mounted such that it is axially displaceable, wherein the drive rotor (7) and the output rotor (8) have permanent magnets with changing polarity which are distributed in each case on the circumference, in an axially adjacent manner in a cylindrical arrangement, and wherein the stator (9), in a radially adjacent arrangement to the permanent magnets of the rotors (7, 8), has at least one squirrel-cage winding which is connected to an associated electronic power system (13):, wherein the effective transmission ratio can be set by an axial displacement of the stator (9) relative to the rotors (7, 8).