Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/153152
Kind Code:
A1
Abstract:
A micro computer stores offset correction values that correct offset of detected current associated with pulse shift for each of maximum phase detection current having the longest energization time among three phases and minimum phase detection current having the shortest energization time, and corrects detection current of the respective phases using the offset correction values for the stored maximum phase detection current and the minimum phase detection current.
Inventors:
WATANABE KAZUYA (JP)
SUGIYAMA YOSHITAKA (JP)
SUGIYAMA YOSHITAKA (JP)
Application Number:
PCT/JP2020/000605
Publication Date:
July 30, 2020
Filing Date:
January 10, 2020
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02P6/10; H02P6/28; H02P21/05; H02P21/22; H02P25/024; H02P25/22; H02P27/08
Domestic Patent References:
| WO2016056083A1 | 2016-04-14 |
Foreign References:
| JP2017123702A | 2017-07-13 | |||
| JP2015061379A | 2015-03-30 | |||
| JP2017163789A | 2017-09-14 |
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
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