| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor capable efficiently cooling a permanent magnet equipped on a rotor and suppressing the generation of irreversible thermal demagnetization caused by heat. <P>SOLUTION: The motor 10 includes a stator 16 having a stator coil 15; a rotor 13 held rotatably on a motor case 18 by a bearing 12; a pump 31 for supplying a cooling oil for cooling the motor 10; a motor 32 for the pump; and a motor control section 25 for controlling the motor. A vehicle control section 26 outputs a command to the motor control section 25, measures the temperature of a stator coil end portion of the motor 10 using a temperature sensor 21, and measures the rotation number of the motor 10. Further, the vehicle control section 26 calculates a motor torque from a drive voltage or a drive current etc. by a motor inverter 22, acquires information about the control state from the motor control section 25 and controls the rotation number of the motor 32 for the pump. <P>COPYRIGHT: (C)2009,JPO&INPIT |
