A shift range control apparatus switches a shift range by controlling a motor and is applied to a vehicle shift-by-wire system. The shift range control apparatus is configured to: switch an energization phase of a motor for one step of a predetermined energization pattern to one rotation direction or a different rotation direction of the motor in a control for learning a play decrease angle; determine whether a detection value of the output shaft sensor has changed; and learn, as the play decrease angle, an angle of the motor shaft when it is determined that the detection value of the output shaft sensor has changed.
SHIFT RANGE CONTROL APPARATUS
2019-12-05
Patent
Elektronische Ressource
Englisch