基于自动刹车与回避转弯的行人主动避撞系统

Pedestrian Collision Avoidance System based on Automatic Brake and Steering Avoidance

主动避撞系统可以在碰撞发生前通过警告驾驶员甚至自动控制车辆来减少交通事故的频率与严重性,但目前阶段主要用于侦测运动车辆,很少用于侦测行人。文章阐述了一套新颖的行人主动避撞系统的实现思路,可以主动避免与行人的碰撞,主要介绍了该系统的环境识别、行驶状态分析,安全状态判断与系统控制等关键技术。本系统的亮点是能够在瞬间决定是否执行车辆控制以及执行控制时采用自动刹车还是规避转向,并且能够在较高的车速时保持这套方法的可靠性。

Collision avoidarice system shows great poteritial to reduce the frequency and severity of traffic accidence through warning the drivers and even controlling vehicles automatically ahead of crashes. However, in current stage, it is mainly used to detect moving vehicles, hut rarely used to detect penetrations. This paper presented an innovative idea about how to achieve pedestrian collision avoidance system, it mainly introduced environment recognition and driving state analysis ,satety judgement ,system control and other key techniques, combing sensing, situation analysis, decision making and vehicles controlling. The highlight of this system is that it can make a decision on whether it is necessary to control the vehicle and decide to brake automatically or avoid steering when controlling in a short time ahead of crashes, , and it can be still reliabe at a relatively high speed（up to 50kin/h）.