基于稳态转向特性的智能车辆换道轨迹规划

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英文篇名：Lane Changing Trajectory Planning for Intelligent Vehicle Based on Steady Steering Characteristics 作者：张新锋 ; 李传友 ; 夏八科 英文作者：Zhang Xinfeng;Li Chuanyou;Xia Bake;Key Laboratory of Automotive Transportation Safety Enhancement Technology of the Ministry of Communication,Chang'an University;School of Automobile,Chang'an University; 关键词：智能车辆 ; 换道 ; 轨迹规划 ; 转向特性 ; 安全距离模型 英文关键词：Intelligent vehicle;;Lane changing;;Trajectory planning;;Steering characteristics;;Safety distance model 中文刊名：QCJS 英文刊名：Automobile Technology 机构：长安大学汽车运输安全保障技术交通行业重点实验室;长安大学汽车学院; 出版日期：2019-04-25 15:38 出版单位：汽车技术 年：2019 期：No.526 基金：中央高校基本科研业务费专项资金项目(CHD2012JC048,72105473);; 长安大学基础研究支持计划专项基金项目;; 汽车运输安全保障技术交通行业重点实验室开放基金项目 语种：中文; 页：QCJS201907004 页数：6 CN：07 ISSN：22-1113/U 分类号：17-22

摘要

为提高智能车辆在高速公路上的换道安全性,分析了车辆在高速状态下的转向特性并对换道轨迹曲线的最大曲率进行限制,以防止车辆在换道过程中出现侧滑现象,分析了交通车对换道安全性的影响,利用多项式函数进行换道轨迹规划,以车辆侧向加速度和换道时间为换道优化函数的优化变量,建立了基于稳态转向特性和换道安全距离的换道模型。利用MATLAB和CarSim软件对换道轨迹进行仿真分析,结果表明,该换道轨迹规划方法能够安全平稳地实现智能车辆的换道行为。
        In order to improve the safety of the lane changing of intelligent vehicles on the expressway, this paper analyzes the steering characteristics of the vehicle at high speed and limited the maximum curvature of the lane changing trajectory curve to prevent the vehicle from slipping during the lane changing. The paper analyzes the influence of traffic vehicles on the safety of lane changing and uses the polynomial function for the lane changing trajectory planning, and uses vehicle lateral acceleration and lane changing time as the optimization variables of optimization function. A lane change model based on steady state steering characteristics and lane change safety distance is established. The trajectory of the lane change is simulated by MATLAB and CarSim software. The simulation results show that the lane changing trajectory can safely and smoothly realize the lane changing behavior of intelligent vehicles.

引文

[1]韩琦.高速公路交通安全评价方法研究[D].哈尔滨:哈尔滨工业大学,2016.
    [2]付坤.基于驾驶员与道路环境因素的驾驶行为差错数学分析[D].长春:吉林大学,2013.
    [3]中国汽车工业协会.智能汽车的基础:浅谈车辆自动驾驶轨迹规划的作用[EB/OL].(2016-04-25).http://www.iitraffic.com/index.php?c=msg&id=902&.
    [4]陈成,何玉庆,卜春光,等.基于四阶贝塞尔曲线的无人车可行轨迹规划[J].自动化学报,2015,41(3):486-496.
    [5]杨志刚,戚志锦,黄燕.智能车辆自由换道轨迹规划研究[J].重庆交通大学学报(自然科学版),2013,32(3):520-524.
    [6]Wu C S,Chiu Z Y,Liu J S.Simulations for Time-Optimal Trajectory Planning along Parametric Polynomial LaneChange Curves for a Unicycle[C]//2017 IEEE International Conference on Robotics and Biomimetics(ROBIO),2017:2173-2178.
    [7]郭枭鹏.基于改进人工势场法的路径规划算法研究[D].哈尔滨:哈尔滨工业大学,2017.
    [8]陈慧岩,龚建伟,姜岩,等.无人驾驶车辆模型预测控制研究[M].北京:北京理工大学出版社,2014:12-13.
    [9]Li C,Li X H,Li J,et al.Trajectory Planning for Autonomous Ground Vehicles Driving in Structured Environments[C]//International Conference on Intelligent Human Machine Systems and Cybernetics,2017:41-46.
    [10]田娥,李立新.基于换道后距离预测的横向安全预警模型[J].现代制造工程,2017(1):55-57+50.