• Patent Title: Motor control device
  • Application No.: US16646148
    Application Date: 2018-11-19
  • Publication No.: US11146198B2
    Publication Date: 2021-10-12
  • Inventor: Hiroaki Okada
  • Applicant: MITSUBA Corporation
  • Applicant Address: JP Gunma
  • Assignee: MITSUBA Corporation
  • Current Assignee: MITSUBA Corporation
  • Current Assignee Address: JP Gunma
  • Agency: JCIPRNET
  • Priority: JPJP2017-235526 20171207
  • International Application: PCT/JP2018/042601 WO 20181119
  • International Announcement: WO2019/111684 WO 20190613
  • Main IPC: H02P25/098
  • IPC: H02P25/098
Motor control device
Abstract:
The invention suppresses the generation of an excessive current in a SR motor during switching between drive control and brake control. This motor control device is for controlling rotation of a multiphase SR motor, and is provided with a control unit that controls the rotational speed of the SR motor while switching between drive control for generating drive torque in the SR motor and brake control for generating braking torque in the SR motor, wherein the control unit performs switching from the drive control to the brake control or vice versa under the condition that the current flowing through a winding wire of an energized phase is less than a prescribed value.
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