Patent Document ID: 9065376
Application ID: 13505591
Patent Flag: 1

Claim One:
1. A method for checking plausibility of a calculated torque of an electric machine, the calculated torque calculated on the basis of a machine model, comprising: determining a first value of an electromagnetic power of the electric machine from the torque calculated on the basis of the machine model and a rotational speed of the electric machine; ascertaining stator currents and stator phase voltages in phases of the electric machine; calculating stator current components and stator phase voltage components from the stator currents and the stator phase voltages with respect to a reference system which is fixed in relation to the stator; determining a second value of the electromagnetic power of the electric machine from the stator current components and stator phase voltage components; comparing the first value of the electromagnetic power of the electric machine with the second value of the electromagnetic power of the electric machine; and classifying the torque of the electric machine, calculated on the basis of the machine model, as being implausible if a deviation of the first value of the electromagnetic power of the electric machine from the second value of the electromagnetic power of the electric machine exceeds a predefined power threshold value.