Title:
POSITION ESTIMATION METHOD, MOTOR CONTROL DEVICE, AND MOTOR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/031938
Kind Code:
A1
Abstract:
The position estimation method according to the present disclosure includes: obtaining first learning data including a sequence of a plurality of measurement values specifying the waveform feature of a first electric signal output from a sensor device when a rotor rotates; sequentially obtaining a sequence of a plurality of detection values specifying the waveform feature of a second electric signal output from the sensor device when the rotor rotates; estimating, using the plurality of measurement values and the plurality of detection values, the relationship between the rotation positions of the rotor when the respective first and second electric signals are output; and storing, into a storage medium, second learning data that include the sequence of the plurality of detection values specifying the waveform feature of the second electric signal output from the sensor device and specify the relationship between a plurality of segment regions specifying the mechanical position of the rotor and the plurality of detection values.
Inventors:
JU CHAO (JP)
TAKAE KOICHI (JP)
FUKUMURA TOMOHIRO (JP)
TAKAE KOICHI (JP)
FUKUMURA TOMOHIRO (JP)
Application Number:
PCT/JP2019/030648
Publication Date:
February 13, 2020
Filing Date:
August 05, 2019
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02P6/16; H02P23/14
Domestic Patent References:
| WO2016194919A1 | 2016-12-08 | |||
| WO2016104378A1 | 2016-06-30 |
Foreign References:
| JP2018098886A | 2018-06-21 |
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