Invention Grant
- Patent Title: Motor control apparatus and method of controlling the same
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Application No.: US16375979Application Date: 2019-04-05
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Publication No.: US10727771B2Publication Date: 2020-07-28
- Inventor: Koji Kawamura
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Rossi, Kimms & McDowell LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3aa2bd61 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1c65104e
- Main IPC: H02P21/26
- IPC: H02P21/26 ; H02P21/00 ; H02P21/22 ; H02P21/18

Abstract:
In order to shorten an activation time while realizing stable motor control, a motor control apparatus operable to control a motor is provided. The apparatus controls so as to drive the motor by the forced commutation control in a duration from a start of control of the motor until a first time period elapses, and control so as to drive the motor by the vector control after the first time period has elapsed. In addition, the apparatus controls an execution frequency of a current detection and a rotation speed estimation. The apparatus controls so that a first execution frequency in a second time period after a switch is made from driving by the forced commutation control to driving by the vector control is greater than a second execution frequency in a third time period subsequent to the second time period.
Public/Granted literature
- US20190319566A1 MOTOR CONTROL APPARATUS AND METHOD OF CONTROLLING THE SAME Public/Granted day:2019-10-17
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