【作者】 陈宁；

【Author】 CHEN Ning Zhejiang University of Science and Technology,Hang Zhou 310023,P.R.China

【机构】 浙江科技学院机械与汽车工程学院；

【摘要】 传统车辆主动避撞系统识别前方异常行驶车辆时存在较大的时间延迟,且不考虑不同道路环境对制动效果的影响,具有很大局限性。本文提出了基于车辆与道路系统集成(VII,Vehicle Infrastructure Integration)体系平台的的车辆主动避撞系统的技术结构,构建了一种在高速公路交通环境下的基于车与车以及车与道路之间短程无线通信(V2V,Vehicle-to-vehicle and Vehicle-to-roadside Communication)的车辆主动避撞系统,设计了该系统短程无线通信介质访问控制协议,并建立了以动态制动减速度为关键参数的车辆临界跟车距离模型。仿真结果表明,该新型主动避撞系统具有较强的自适应性和鲁棒性,能够达到较为理想的主动避撞效果。更多还原

【Abstract】 There is a high-latency before conventional automotive active collision-avoidance system identified the abnormal vehicle in front of it,and without considering the impact of different road conditions on effect of braking.This paper proposes an automotive active collision-avoidance system based on VII technology(vehicle-to-vehicle and vehicle-to-roadside communication),design a V2V short-range wireless communication media access protocol at road traffic environment,and establish a vehicle following critical distance model which make the dynamic braking deceleration as its key parameter.Simulation results demonstrate that the new active collision-avoidance system has strong self-adaptability and robustness,achieves a more satisfactory effect of active collision-avoidance.更多还原