| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor drive control device that suppresses the occurrence of hunting in a rotation speed of a motor while suppressing deterioration in speed responsiveness even when a target rotation speed varies during low-speed operation, a power assist device, and a responsive feedback control method. <P>SOLUTION: A rotation speed detection part 92 detects a rotation speed of a motor 40. A target rotation speed acquisition part 90 acquires a target rotation speed of the motor 40. A gain-factor derivation part 94 derives a gain factor for amplifying an adjustment amount of the rotation speed of the motor 40 as a value, in which the faster the detected rotation speed is the larger the value is, within a range preventing the occurrence of overshoot that causes the rotation speed of the motor 40 to exceed the target rotation speed. A PID control part 96 executes feedback control to the rotation speed of the motor 40 on the basis of the derived gain factor and a deviation of the detected rotation speed with respect to the acquired target rotation speed. <P>COPYRIGHT: (C)2008,JPO&INPIT |
