| 摘要 |
PROBLEM TO BE SOLVED: To suppress the torque fluctuation of a motor caused by temperature. SOLUTION: For controlling a motor 4 in which a temperature detector 8 and a position detector 5 are incorporated as sensors, a computing unit 9 which estimates the magnetic flux of the motor 4 by computation based on the temperature detected by means of the temperature detector 8, and a current command correcting device 10 which performs prescribed correction on the current which causes the motor 4 to generate torque based on the estimated value of the magnetic flux, are provided. The motor 4 is made to generate torque that is not affected by temperature fluctuation by controlling the motor 4 by using the output of the correcting device 10 as a new current command value. |
