Title:
MOTOR SYSTEM AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2024/084598
Kind Code:
A1
Abstract:
Provided is a motor system comprising a motor (1) and a control unit that controls the motor, wherein: the motor has a rotor (10) in which a magnetic-flux-generating body that generates magnetic flux is disposed, a stator (12) having a back yoke (13) that is disposed facing the rotor and a plurality of teeth (14) that protrude toward the rotor from the back yoke and are disposed at intervals in the rotation direction of the rotor, a winding (16) that is wound around the stator, and a plurality of magnetic sensors (17-1 to 17-6) that are provided to slots (15) constituting spaces between the adjacent teeth and that measure magnetic flux density; the control unit has a computation unit that derives the rotation angle and/or the eccentricity of the rotor on the basis of signals from the plurality of magnetic sensors; and the signals from the magnetic sensors used by the computation unit are produced by the magnetic sensors provided to the slots for which the windings on both sides are in the same phase and for which the directions of electricity conduction are mutually opposite.
Inventors:
MIYOSHI MASAHITO (JP)
NAKAMURA YUICHIRO (JP)
TOTOKI EIGO (JP)
SUGIMOTO HIROYA (JP)
NAKAMURA YUICHIRO (JP)
TOTOKI EIGO (JP)
SUGIMOTO HIROYA (JP)
Application Number:
PCT/JP2022/038821
Publication Date:
April 25, 2024
Filing Date:
October 18, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
UNIV TOKYO DENKI (JP)
UNIV TOKYO DENKI (JP)
International Classes:
H02K29/08; H02P6/16
Foreign References:
| JP2010011637A | 2010-01-14 | |||
| JPS58116057A | 1983-07-11 | |||
| JP2001033277A | 2001-02-09 | |||
| JP2016188700A | 2016-11-04 | |||
| JP2012083236A | 2012-04-26 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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