| 摘要 |
PROBLEM TO BE SOLVED: To obtain a play feeling of steering in the direction having the posibility of collision, and to improve the steering feeling, by providing a means to suppress the steering when the steering torque is at a set value or higher, and the possibility of collision is generated, and setting to increase the set value of the steering torque when the car speed is increased. SOLUTION: A set value Ta of the steering torque is made constant when the car speed is less than a certain speed va requiring no steering suppression, and the set value Ta is increased proportionally with the car speed v when the car speed is at the speed va or higher. When the detected torque T is at the set value Ta or higher, the steering direction is decided by the signal from a torque sensor 3. And by the obstacle detecting signals from sensors 53, 54, 55, and 56 in the steering direction, the possibility of collision of a vehicle 10 and an obstacle is decided. When it is decided that there is a possibility of collision, the steering is suppressed. When the steering torque T required to the steering in the direction having the possibility of collision is less than the set value Ta, the steering is not suppressed, and as a result, a play feeling of steering can be obtained.
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