| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor control device which, while securing high quietness, can exert resolver-less control stably. <P>SOLUTION: A F/B control unit 47, by using a feedback gain derived from a F/B gain variable control unit 80 by arithmetic operation, executes torque feedback control based on a torque deviation Δτ to calculate a first change component dθτ. Furthermore, the F/B gain variable control unit 80 calculates two kinds of different feedback gains K1 and K2 according to each arithmetic mode, a "first arithmetic mode" in which the first change component dθτ is assumed to be an addition angle θa and a "second arithmetic mode" in which the first change component dθτ corrected by an estimated motor revolution angle ωm_e is assumed to be the addition angle θa. The feedback gain K1 used in the first arithmetic mode is set to be higher in responsiveness as compared with the feedback gain K2 used in the second arithmetic mode. <P>COPYRIGHT: (C)2013,JPO&INPIT |
