Patent ID: 8755996

Claim:
A vehicular operation assisting system for assisting a driver in making an avoidance operation of a vehicle to avoid an obstacle, comprising: a processor, including: an obstacle detecting section for detecting the obstacle ahead of the vehicle; an avoidance required distance calculating section for periodically calculating a distance required to avoid the detected obstacle; an actuator which applies an assist force to a steering wheel; a steering angle detecting section for detecting a steering angle of the steering wheel; a steering angular velocity calculating section for calculating a steering angular velocity of the steering wheel based on the steering angle; an avoidance operation determining section for: periodically calculating an avoidance operation amount based on the steering angle and the steering angular velocity of a steering operation made by the driver using: srto=δ×α+dδ/dt×β, where the srto represents the avoidance operation amount and ranges from −1 to +1, and wherein δ is the steering angle, dδ/dt is the steering angular velocity, and α and 62 are coefficients, and determining an avoidance operation based on the avoidance operation amount calculated by srto=δ×α+dδ/dt×β regardless of a positional relationship of the vehicle and the obstacle detected by the obstacle detecting section in a right direction and a left direction; and an avoidance operation assisting degree calculating section for periodically calculating an avoidance operation assisting degree based on the calculated distance and the determined avoidance operation; wherein the avoidance operation determining section is configured to increase a value of (δ×α) as the vehicle speed increases, and drive the actuator for applying the assist force to the steering wheel based on a value obtained by adding the calculated avoidance operation assisting degree to a target value which is set based on a steering torque and the vehicle speed.