Patent ID: 11958472
Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 9:
10. A hybrid drive train, comprising:
a first partial drive train including an internal combustion engine having a crankshaft
a second partial drive train including an electric machine having a rotor;
a torsional elasticity arranged between the first partial drive train and the second partial drive train, the torsional elasticity being connected to the crankshaft and the rotor;
a sensor arranged on the torsional elasticity and configured to detect a rotational characteristic value of the crankshaft;
a device engaged with the rotor and configured to detect a rotational characteristic value of the rotor;
a separating clutch downstream of the electric machine; and
a controller in communication with the sensor and the device, the controller being configured to:
receive the rotational characteristic value of the first partial drive train from the sensor;
receive the rotational characteristic value of the rotor from the device;
determine a quality index based on the rotational characteristic value of the first partial drive train and the rotational characteristic value of the rotor; and
control the electric machine to optimize the quality index;

wherein the separating clutch is at least partially opened when the quality index exceeds a predetermined quality index.