This paper describes the system concepts and control strategy for a steering system designed to actively avoid collisions. The authors are developing this system using the basic concept that when functioning, the system must never cause a secondary accident to occur. This system detects the driver's handling action and vehicles approaching from the side and/or rear, then controls this handling action if it is going to cause a collision with those vehicles. In addition, this system does not control the handling action when the driver is going to steer to avoid an emergency obstacle. Since it is necessary to recognize the driver's intention with only his handling action, experiments with various handling patterns on every driving scene were analyzed for the dynamic characteristics of the steering torque for each. A method of judging handling action is introduced by analyzing the driver's input torque so that the above concept can be realized.
Samenvatting