Rotary shifter

A rotary shifter comprising:

• a knob that is rotationally operable;
• a cam mechanism configured to hold the knob at holding positions corresponding to respective predetermined shift positions;
• an electromagnetic brake including a yoke and an armature rotatable together with the knob via a speed increase mechanism, the electromagnetic brake being configured to restrict rotation of the armature and the knob by the yoke attracting the armature when energized;
• and
• a hardware processor configured to
• detect a rotation angle of the armature,
• determine a predetermined shift position at which the knob is held among the predetermined shift positions whose number is N, based on the rotation angle of the armature detected by the rotation angle detection unit, and
• control operation of the electromagnetic brake based on a determination result of the determination unit,
• wherein a rotation pitch angle between the holding positions of the knob at a time of switching the predetermined shift positions is set to an angle obtained by dividing 360 degrees by a first integer A (A≥N), and
• wherein a rotation pitch angle between stopping positions of the armature corresponding to the holding positions at a time of switching the predetermined shift positions is set to an angle obtained by dividing 360 degrees by a second integer B (A>B≥N).