DRIVING SUPPORT SYSTEM OF VEHICLE

摘要

Disclosed is a driving support system of vehicle wherein a vehicle is made to follow up a target guideway without causing unstable behavior of the vehicle. A vehicle (10) has a VGRS actuator (200) as a means for varying the steering angle, and an EPS actuator (400) as a means for assisting torque. When the vehicle (10) follows up a target guideway, an LKA target assist torque (TLK) is outputted from the EPS actuator (400) based on a target lateral acceleration (GYTG). On the other hand, a steering wheel (11) is steered excessively by an LKA correction target angle ?LK by means of the VGRS actuator (200) in order to suppress unintended steering of the steering wheel by a driver caused by such an assist torque. Since the relation between the steering angle and the rotation angle of a lower steering shaft (13) is not affected, the vehicle can follow up the target guideway without reducing robustness of the vehicle for steering of the driver.