Patent 9764760 was granted and assigned to Honda on September, 2017 by the United States Patent and Trademark Office.
A mode setting unit of ECU controls a turning angle so as to be a turning angle in accordance with a steering angle detected by a steering angle sensor. When a vehicle is started, the mode setting unit controls an angle ratio so as to be an angle ratio that is equal to or smaller than a ratio of the turning angle to the steering angle (mechanical angle ratio) when a steering wheel and a turning mechanism are connected by a clutch mechanism.