Motor control device, motor control method

JP7707519B2Active Publication Date: 2025-07-15OMRON CORP
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Patent Information

Application Number
JP2020149416
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-09-04
Publication Date
2025-07-15
Estimated Expiration
2040-09-04

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Abstract

To perform highly accurate control of a stop position in a three-phase DC motor.SOLUTION: A motor control unit (1) comprises: an adjustment start determination unit (14) that, at braking of rotation of a three-phase DC motor (50), starts adjustment of a rotation stop position of the three-phase DC motor (50) on the basis of a rotation speed of the three-phase DC motor (50) and the number of pulses remaining until stop of rotation; and a Hall IC signal switching unit (15) that, when the adjustment is started, stops the three-phase DC motor (50) at a desired rotation stop position. The Hall IC signal switching unit performs rotation control on the basis of a signal obtained by converting a signal for monitoring a rotation state of the three-phase DC motor (50).SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

  • Door mirror device for vehicle

    JP2006321467A

  • Motor control apparatus and motor control method

    JP2009118694A

  • Motor controller

    JP2018157631A