Title:
MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/196162
Kind Code:
A1
Abstract:
When increasing the number of rotations under a two-phase modulation scheme, a control device (100) changes the modulation scheme from the two-phase modulation scheme to a three-phase modulation scheme if the number of samplings for a control modulation-factor value per electrical cycle from a target modulation-factor waveform decreases to less than a prescribed number.
Inventors:
SAKAI KOJI (JP)
Application Number:
PCT/JP2014/002810
Publication Date:
December 11, 2014
Filing Date:
May 28, 2014
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02P6/18; H02P6/06; H02P6/08; H02P6/182; H02P6/28; H02P27/08
Domestic Patent References:
| WO2011002015A1 | 2011-01-06 |
Foreign References:
| JP2012110171A | 2012-06-07 | |||
| JP2004289985A | 2004-10-14 | |||
| JP2006217673A | 2006-08-17 |
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
Gold Junki (JP)
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