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Title:
PHASE ADJUSTMENT METHOD, CORRECTION VALUE CALCULATION DEVICE, MOTOR CONTROL DEVICE, ELECTRIC ACTUATOR PRODUCT, AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/161650
Kind Code:
A1
Abstract:
This phase adjustment method of a rotation angle sensor (10) for detecting the rotation angle of a rotor of a brushless motor (2) involves: measuring a first rotation speed and a second rotation speed when the brushless motor (2) is driven with the same torque command current so that the brushless motor (2) rotates in a clockwise direction or a counterclockwise direction on the basis of the rotation angle of the rotor detected by the rotation angle sensor (10) (S1, S3); and calculating a correction value for correcting the phase of the rotation angle sensor so that the rotation speed difference between the first rotation speed and the second rotation speed is reduced (S2, S5).

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JP2006060897CONTROLLER FOR MOTOR
Inventors:
NISHIOKA YUSUKE (JP)
AOSAKI YOSHIHIRO (JP)
YAMAMURA HIROYUKI (JP)
Application Number:
PCT/JP2020/047012
Publication Date:
August 19, 2021
Filing Date:
December 16, 2020
Export Citation:
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Assignee:
NSK LTD (JP)
International Classes:
H02P6/16; B62D6/00; G01D5/244; G01D5/245; H02P6/30
Foreign References:
JP2004274855A2004-09-30
JP2013042662A2013-02-28
JP2018088810A2018-06-07
JP2015159709A2015-09-03
JP2008099369A2008-04-24
Other References:
See also references of EP 3916996A4
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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