| 摘要 |
A control unit for an electric machine. The control unit has a processing unit and a power output stage connected to the processing unit. The power output stage is connected to outputs of the control unit for stator coils of a stator of the electric machine. The processing unit is designed to supply current to the power output stage for generating a stator field, in particular a rotating magnetic field. The control unit comprises an electrical energy store, in particular an intermediate circuit capacitor or accumulator, connected to the power output stage. The control unit includes an input for a control signal, for example a temperature signal. The processing unit is preferably designed to actuate the power output stage as a function of the temperature signal such that the energy store can be heated by a current application pattern generated by the power output stage. The current application pattern corresponds to a stator field which cannot generate an effective torque or a rotary motion, such as a full revolution of a rotor of the electric machine. |
