| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller which reduces an impact of noise and a torque ripple caused by the noise. <P>SOLUTION: A current command value of each (n) phase of an n-phase brushless motor 7 is outputted by a current command value operating means 3. The current deviation of the current command value of each (n) phase from each phase current detected by motor current detecting means 8a to 8c is calculated by n-pieces of current deviation operating means 22a to 22c, and an average value of the current deviation of an (n) phase is computed as a correction value by a correction value calculating means 24. Using a current control means 4, the correction value is subtracted from current deviation outputted from the n-1 pieces of deviation operating means of the n-pieces of deviation operating means, after which the current is controlled and a voltage command value of an (n-1) phase is outputted, then the voltage command value of remaining one phase is computed from the voltage command value of the (n-1) phase by a voltage command value calculating means 27, and the voltage command value of the (n) phase thus calculated is supplied to a motor drive circuit. <P>COPYRIGHT: (C)2008,JPO&INPIT |
