摘要
根据前车的加速度大小及其变化率对前车的运动状态进行判断,当前车处于紧急制动或持续加速时,对基于车辆制动过程运动学分析的安全距离模型进行修正完善。在双轮模型的基础上进行了仿真实验,结果表明:当前车出现撞车时,完善后的模型依然能够达到避撞目的,当前车处于持续加速时,完善后模型在保证安全的前提下改善了道路的通过性。
The motion state of front vehicle was judged by its acceleration and change rate. The model ofsafety distance based on kinematic analysis of vehicle braking was improved as the front vehicle inemergency braking or sustained acceleration. The simulation experiments were performed on the basisof double-wheel model. The results show the perfected model is still able to achieve the purpose of colli-sion avoidance even when the front vehicle confronts traffic collision. Also, as the front vehicle is in sus-tained acceleration, the model can improve the roads＇ trafficability on the premise of ensuring safety.
出处
《湖北汽车工业学院学报》
2014年第4期5-8,共4页
Journal of Hubei University Of Automotive Technology
基金
西华大学重点研究项目(R0720305)
关键词
避撞系统
安全距离
运动状态
collision avoidance system
safety distance
motion state
