Patent ID: 8186477

Claim:
A rear wheel steering vehicle comprising: a steering wheel for steering right and left front wheels; a power steering system for providing an assist force so as to assist steering of the right and left front wheels according to operation of the steering wheel; and a rear wheel toe angle variable control system for changing toe angles of right and left rear wheels in a same or different direction relative to a longitudinal axis of the vehicle or in a toe-in or toe-out relationship by individually controlling actuation of right and left actuators mounted for the right and left rear wheels, respectively, wherein when the rear wheel toe angle variable control system has changed the toe angles of the right and left rear wheels in the toe-in relationship, the power steering system increases the assist force compared to when no toe angle is given to the right and left rear wheels, and when the rear wheel toe angle variable control system has changed the toe angles of the right and left rear wheels in the toe-out relationship, the power steering system decreases the assist force compared to when no toe angle is given to the right and left rear wheels.