Title:
MOTOR AND LOCATION ESTIMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/004002
Kind Code:
A1
Abstract:
A motor characterized by comprising a rotor rotatable around the central axis, a stator radially facing the rotor, a magnet attached to a shaft of the rotor and having at least one pair of poles in a row in a rotation direction of the rotor, and at least three magnetometric sensors sensing a magnetic field of the magnet; and characterized in that an amplitude of a magnetic force generated by the magnet and sensed by each of the magnetometric sensors continuously varies in one rotation of the rotor.
Inventors:
NAITO AKIMA (JP)
Application Number:
PCT/JP2020/046910
Publication Date:
January 06, 2022
Filing Date:
December 16, 2020
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02P6/16; G01D5/14; G01D5/16; H02K11/215
Domestic Patent References:
| WO2018173106A1 | 2018-09-27 | |||
| WO2020090596A1 | 2020-05-07 |
Foreign References:
| JP2012205399A | 2012-10-22 | |||
| JP2009281978A | 2009-12-03 | |||
| JP2020518810A | 2020-06-25 | |||
| JP2011052985A | 2011-03-17 | |||
| JP2020034540A | 2020-03-05 |
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