| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a synchronous motor control device that is suppressed in torque variation and improved in efficiency by changing a current amount by the variation of a battery voltage, and by changing a current by the change of a motor temperature. <P>SOLUTION: A battery voltage reduced value is operated from the battery voltage and the motor temperature, the change of an induction voltage of a synchronous motor caused by the motor temperature is considered as the change of the battery voltage, and a d-axis current command and a q-axis current command are corrected, thus simultaneously correcting the change of the battery voltage and the change of the motor temperature, improving the efficiency and suppressing the torque variation. <P>COPYRIGHT: (C)2007,JPO&INPIT |
