A cooling control device and cooling control method for an electric-vehicle motor whereby damage to said motor can be reduced without making the user feel as though something is wrong are obtained. A vehicle control unit has the following: a vehicle-stop determination unit that determines whether or not the vehicle is stopped; a clutch control unit that disengages a clutch if it is determined that the vehicle is stopped; a motor control unit that, after the clutch has been disengaged, runs the motor so as to run an oil circulation unit; and a motor-magnet-temperature estimation unit that detects an induced voltage resulting from the motor being run and estimates the temperature of a magnet in the motor from the detected motor-induced voltage. If the estimated motor-magnet temperature is higher than a predetermined temperature threshold above which motor cooling is required, the motor control unit keeps the motor running, but if the motor-magnet temperature is less than or equal to said temperature threshold, the motor control unit stops the motor.
Cooling control device and cooling control method for electric-vehicle motor
2015-12-02
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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