歩行者衝突自動回避システムの基本的設計指針

抄録

Simulation analysis for automatic collision avoidance system that is a driver assist system of Intelligent Transport Systems (ITS) is conducted in this paper. The automatic collision avoidance system avoids the collision by using automatic steering and/or automatic braking, when there is possibility of the collision with a pedestrian. We treat the situation in which a pedestrian walks across a road. The avoidance procedures of the system are two ways as follows: One is to brake continuously while the automatic steering, which is called “braking continuation method”. The other is to stop the brake when the automatic steering starts, which is called “braking suspension method”. Vehicle velocity, time to collision (TTC), road friction coefficient, automatic steering start timing and the deceleration of the automatic braking are varied as simulation parameters. Avoidance success rate is calculated from the simulation. Thus, from the calculation results, we propose the design table that is described the optimum avoidance method to the running conditions.