Title:
MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/245985
Kind Code:
A1
Abstract:
This motor control device comprises: a storage unit which stores, in advance, an abnormal pattern indicating an abnormality of output values of Hall sensors expressed by a combination of output values of a plurality of Hall sensors, a pre-pattern immediately prior to the appearance of the abnormal pattern, and a post pattern immediately after the appearance of the abnormal pattern; and a detection unit which detects whether the output values of the plurality of Hall sensors output by the plurality of Hall sensors are the abnormal pattern stored in the storage unit. If the detection unit detects that the output values of the plurality of Hall sensors are the abnormal pattern stored in the storage unit, the detection unit checks whether the output values of the Hall sensors immediately prior to the appearance of the abnormal pattern are the pre-pattern stored in the storage unit, and whether the output values of the Hall sensors immediately after the appearance of the abnormal pattern are the post-pattern stored in the storage unit. The motor control device drives the motor on the basis of the result of the checking performed by the detection unit.
Inventors:
MATSUI HIROKAZU (JP)
MITSUI TOSHISADA (JP)
MITSUI TOSHISADA (JP)
Application Number:
PCT/JP2021/004257
Publication Date:
December 09, 2021
Filing Date:
February 05, 2021
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02P6/16; H02P29/024; H02P29/028
Domestic Patent References:
| WO2010128538A1 | 2010-11-11 |
Foreign References:
| JP2006033928A | 2006-02-02 | |||
| US20060261807A1 | 2006-11-23 | |||
| JP2015092795A | 2015-05-14 |
Attorney, Agent or Firm:
TODA Yuji (JP)
Download PDF: