Shift range control device
AssigneeDenso Corporation
InventorShigeru Kamio
Life of this patent
Estimating the term…
Abstract
A shift range control device switches a shift range by controlling the driving operation of a motor. When a difference between a target angle at which the motor is to be stopped and an actual angle becomes smaller than an angle determination threshold, the shift range control device switches from a feedback control to a control with a fixed duty. When the motor reverses, the shift range control device switches from the control with the fixed duty to a stationary phase energization control for energizing a stationary phase of the motor.
Claims6
A shift range control device that switches a shift range by controlling a driving operation of a motor, the shift range control device comprising:
- a first switching control unit that switches from a feedback control to a control with a fixed duty when a difference between a target angle at which the motor is to be stopped and an actual angle becomes smaller than an angle determination threshold;
- a reverse determination unit that determines whether the motor reverses;
- and
- a second switching control unit that switches from the control with the fixed duty to a stationary phase energization control for energizing a stationary phase of the motor when the reverse determination unit determines that the motor reverses.
A shift range control device that switches a shift range by controlling a driving operation of a motor, the shift range control device comprising:
- a first switch that switches from a feedback control to a control with a fixed duty when a difference between a target angle at which the motor is to be stopped and an actual angle becomes smaller than an angle determination threshold;
- a processor unit that determines whether the motor reverses;
- and
- a second switch that switches from the control with the fixed duty to a stationary phase energization control for energizing a stationary phase of the motor when the processor determines that the motor reverses.
Dependencies are inferred from the claim text.