It can be found from real vehicle tests that there exist obvious differences among emergency brake acceleration and the acceleration of other conditions. So, the emergency brake acceleration can be used to predict accident. Based on the emergency brake acceleration and the moving window integration algorithms, a control system of new crash energy absorption equipment which combines active and passive safety was developed. Real vehicle tests show that the emergency brake action of driver can be identified and accident can be predicted effectively by this system. The trigger signal can be sent to the energy absorption equipment on time and the system works stably. 

通过实车试验研究发现,紧急制动时车辆加速度信号与其他工况有明显区别,可利用车辆的加速度信号识别驾驶员的紧急制动行为以预测碰撞事故。因此,基于制动加速度和移动窗积分算法,研制了一种可用于主被动结合新型碰撞缓冲吸能装置的自动控制系统。实车试验表明,该系统能够有效识别驾驶员的紧急制动行为并预测碰撞事故,能向主被动结合新型碰撞缓冲吸能装置发出正确的触发指令,且工作稳定。

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主被动结合, 碰撞事故判断, 制动加速度, 移动窗积分