Title:
制御装置及びブラシレスモータ
Document Type and Number:
Japanese Patent JP6760095
Kind Code:
B2
Abstract:
A control device includes an obtaining unit that obtains rotation information indicating an amount of rotation and a rotation direction of a rotor of a brushless motor; and a controller that specifies a current to be provided to a coil of the brushless motor to control a rotating magnetic field generated by the coil by performing change control for gradually changing an electrical angle of the rotating magnetic field, detecting, as an initial position of the rotor, a position in which the rotor faces magnetic poles generated at an electrical angle when the rotation direction obtained during the change control changes from a first direction to a second direction and a difference between the amount of rotation in the first direction and that in the second direction obtained during the change control becomes smaller than a first threshold, and controlling the rotating magnetic field in accordance with the initial position.
Inventors:
Motohiro Tokaibayashi
Toyohiko Hoshino
Yukio Takano
Toyohiko Hoshino
Yukio Takano
Application Number:
JP2017005345A
Publication Date:
September 23, 2020
Filing Date:
January 16, 2017
Export Citation:
Assignee:
Fuji Xerox Co., Ltd
International Classes:
H02P6/16
Domestic Patent References:
| JP5227781A | ||||
| JP7107776A | ||||
| JP2237490A | ||||
| JP2012105469A | ||||
| JP2006296027A |
Attorney, Agent or Firm:
Asahi Patent Office