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Title:
MOTOR CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2013118782
Kind Code:
A
Abstract:

To provide a motor control device that is capable of stabilizing a rotor at initial positions quickly before start of rotation.

A motor control device includes a rotation control part 4 for controlling rotation of a three-phase motor 2 by energizing a plurality of switching elements 31 to 36 based on a control signal, with the rotation control part 4 performing one-phase energization in order to move a predetermined portion 21a of the rotor 21 to initial positions A1 and A2 before start of the rotation of the motor. The rotation control part 4 energizes the switching elements so that the rotor 21 is electromagnetically braked in a period from start of the one-phase energization to end of fluctuation of the rotor 21 by the one-phase energization, thereby causing the predetermined portion 21a to stop within cogging angle ranges B1 and B2 corresponding to the initial positions A1 and A2.


Inventors:
MINATO YOSHIHIKO
Application Number:
JP2011265678A
Publication Date:
June 13, 2013
Filing Date:
December 05, 2011
Export Citation:
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Assignee:
AISIN SEIKI
International Classes:
H02P6/18; H02P6/06; H02P6/08; H02P6/182; H02P6/28
Domestic Patent References:
JP2008271698A2008-11-06
JPH11356088A1999-12-24
JPH10191682A1998-07-21
JP2006271127A2006-10-05
Attorney, Agent or Firm:
Kobayashi Osamu