Method for toe variable control of a rear wheel steering system

[0029]Hereinafter, embodiments of the present disclosure are described in detail with reference to the accompanying drawings. The embodiments can be embodied by those having ordinary skill in the art to which the present disclosure pertains in various different forms as an example, such that it is not limited to the embodiments described herein.

[0030]Referring to FIGS. 1A and 1B, a control system to perform a toe variable control method is classified into a yaw-following control S90, a toe linearization mapping control S70-S78, or a toe linearization control S80. In a yaw-following control S90, a Rear Wheel Steering (RWS) actuator operation [S100] is performed by a RWS drive basic control amount F [S91] as in the conventional method by detecting RWS control information [S10] and then confirming occurrence of bump / rebound [S20]. In a toe linearization mapping control [S70]˜[S78], the RWS actuator operation [S100] is performed by toe reduction / increase after determining whether or no