CPC B60W 40/12 (2013.01) [B60W 30/18018 (2013.01); B60W 40/105 (2013.01); B60W 2510/087 (2013.01)] | 4 Claims |
1. A control apparatus for controlling an electric motor mounted on a vehicle, the control apparatus comprising:
a rotor temperature estimation unit estimating a temperature of a rotor based on stator temperature information from a stator temperature identification unit for identifying a temperature of a stator, refrigerant temperature information from a refrigerant temperature identification unit for identifying a temperature of refrigerant used to cool the electric motor, and rotation speed information about the rotor from a rotation speed identification unit for identifying a rotation speed of the rotor;
a control unit controlling at least one of an output characteristic and a drive condition of the electric motor based on the temperature of the rotor estimated by the rotor temperature estimation unit;
an electric power source cutoff time identification unit identifying electric power source cutoff time during which an electric power source for the vehicle is cut off; and
a start-up temperature estimation unit estimating a temperature of the rotor at the time of energizing the vehicle for which the electric power source cutoff time has ended, based on the electric power source cutoff time and a temperature of the rotor, estimated by the rotor temperature estimation unit, immediately before cutting off the electric power source.
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