| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller which calculates a change in a resistance value of motor winding without using a phase error or a d-axis current, and detecting and correcting a change in the resistance value of the motor winding on line during operation. <P>SOLUTION: The motor controller includes: a current command ratio detecting section (16) for accumulating a q-axis current command and a q-axis current of the motor in accelerating the motor and detecting a current command ratio; and a winding resistance correcting section (17) for correcting a winding resistance value based on the current command ratio of the current command ratio detecting section. <P>COPYRIGHT: (C)2010,JPO&INPIT |
