| 摘要 |
PURPOSE:To reduce a turning radius of a car at the time of curving a narrow road, by setting a steering angle of a rear-wheel steering gear to zero in the case where there is an obstacle in and around either side of the car, while electrically controlling the said steering angle in the other case. CONSTITUTION:A sideward distance detector 4 detects a distance between an obstacle situated in the opposite side to a steering direction of a front-wheel steering gear 2 and one side of a car being opposed to this obstacle, and outputs this detecting signal to a control device 5. When the said distance is smaller than the specified value, the control device 5 makes the steering angle of a rear-wheel steering gear 1 keep zero irrespectively of the steering angle of the front-wheel steering gear 2. And, when the said distance is larger than the specified value, the control device 5 makes an electrical control device 3 drive in motion. This electrical control device 3 controls the rear-wheel steering according to the steering direction and the steering angle of the front-wheel steering gear 2 and a car speed. |
