Active differential and motor vehicle

An active differential for the controlled distribution of a drive torque generated by a drive motor to two drive shafts, comprising:

• a planetary gear train configured to couple the two drive shafts to a drive shaft of the drive motor;
• a distributor motor including a distributor shaft, said distributor motor producing a torque, with a distribution of a drive torque to the two drive shafts being dependant on the torque produced by the distributor motor;
• and
• a coupling device coupling the distributor shaft and the planetary gear train and configured to only transmit a torque from the planetary gear train to the distributor shaft when a rotational speed difference between rotational speeds of the two output shafts exceeds a predetermined limit value and when a connection condition depending on an operating condition of the distributor motor is satisfied.

A motor vehicle, comprising:

• two drive shafts;
• a drive motor generating a drive torque;
• and
• an active differential for distributing the drive torque to the two drive shafts, said active differential including a planetary gear train configured to couple the two drive shafts to a drive shaft of the drive motor, a distributor motor including a distributor shaft, said distributor motor producing a torque, with a distribution of a drive torque to the two drive shafts being dependant on the torque produced by the distributor motor, and a coupling device coupling the distributor shaft and the planetary gear train and configured to only transmit a torque from the planetary gear train to the distributor shaft when a rotational speed difference between rotational speeds of the two output shafts exceeds a predetermined limit value and when a connection condition depending on an operating condition of the distributor motor is satisfied.