VEHICULAR STEERING CONTROL DEVICE

摘要

The present invention maintains optimal vehicle behavior at all times in an instance in which a plurality of controls relating to steering of rear wheels interfere with each other. This vehicular steering control device is provided with: first setting means for setting a first target rear-wheel steering angle that depends on a handle operation performed by the driver; second setting means for setting a second target rear-wheel steering angle that is related to automatic steering and that is not coupled with the handle operation performed by the driver; controlling means for controlling the rear-wheel steering angle on the basis of the first and second target steering angles that have been set; and restricting means for restricting the effect of the first target steering angle on the rear-wheel steering angle in accordance with travel conditions of the vehicle in an instance in which the first and second target steering angles that have been set are in a reverse relationship to each other. The restricting means restricts the effect of the second target steering angle on the rear-wheel steering angle in accordance with travel conditions of the vehicle, in preference to the first steering angle, in an instance in which automatic steering related to setting of the second target steering angle is one that minimizes the change in the vehicle state quantity that occurs in the course of controlling a state control level that is different from the rear-wheel steering angle.