Motor control device
AssigneeMitsuba Corporation
InventorHiroaki Okada
Life of this patent
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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.
Claims16
A motor control device for controlling rotation of a multiphase SR motor, comprising:
- a control unit controlling a 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 switches from one of the drive control and the brake control to the other under a condition that a current flowing through a winding wire of an energized phase is less than a prescribed value.
Dependencies are inferred from the claim text.