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基于四阶贝塞尔曲线的无人车可行轨迹规划

陈成 何玉庆 卜春光 韩建达

陈成, 何玉庆, 卜春光, 韩建达. 基于四阶贝塞尔曲线的无人车可行轨迹规划. 自动化学报, 2015, 41(3): 486-496. doi: 10.16383/j.aas.2015.c140295
引用本文: 陈成, 何玉庆, 卜春光, 韩建达. 基于四阶贝塞尔曲线的无人车可行轨迹规划. 自动化学报, 2015, 41(3): 486-496. doi: 10.16383/j.aas.2015.c140295
CHEN Cheng, HE Yu-Qing, BU Chun-Guang, HAN Jian-Da. Feasible Trajectory Generation for Autonomous Vehicles Based on Quartic Bézier Curve. ACTA AUTOMATICA SINICA, 2015, 41(3): 486-496. doi: 10.16383/j.aas.2015.c140295
Citation: CHEN Cheng, HE Yu-Qing, BU Chun-Guang, HAN Jian-Da. Feasible Trajectory Generation for Autonomous Vehicles Based on Quartic Bézier Curve. ACTA AUTOMATICA SINICA, 2015, 41(3): 486-496. doi: 10.16383/j.aas.2015.c140295

基于四阶贝塞尔曲线的无人车可行轨迹规划

doi: 10.16383/j.aas.2015.c140295
基金项目: 

国家重点自然科学基金(61035005)资助

详细信息
    作者简介:

    何玉庆 中国科学院沈阳自动化研究所研究员.2008年获中国科学院沈阳自动化研究所工学博士学位.主要研究方向为系统估计与控制, 自主导航与控制, 多机器人协作以及人机协作. E-mail: heyuqing@sia.cn

    通讯作者:

    陈成 中国科学院沈阳自动化研究所博士研究生.2009年获南开大学信息技术科学学院自动化专业学士学位.主要研究方向为环境建模及路径规划.本文通信作者.E-mail: chenc@sia.cn

Feasible Trajectory Generation for Autonomous Vehicles Based on Quartic Bézier Curve

Funds: 

Supported by State Key Program of National Natural Science Foundation of China (61035005)

  • 摘要: 对于实际的无人车系统来说,轨迹规划需要保证其规划出来的轨迹满足运动学约束、 侧滑约束以及执行机构约束.为了生成满足无人车初始状态约束、目标状态约束的局部可行轨迹,本文提出了一种基于四阶贝塞尔曲线的轨迹规划方法.在该方法中, 轨迹规划问题首先被分解为轨形规划及速度规划两个子问题.为了满足运动学约束、 初始状态约束、目标状态约束以及曲率连续约束,本文采用由3个参数确定的四阶贝塞尔曲线来规划轨迹形状.为了保证转向机构可行,本文进一步采用优化方法求解一组最优参数从而规划出曲率变化最小的轨线.对于轨线执行速度规划,为了满足速度连续约束、加速度连续约束、加速度有界约束以及目标状态侧滑约束,本文首先求解了可行的轨迹执行耗时区间,再进一步在该区间中求解能够保证任意轨迹点满足侧滑约束的耗时,最后再由该耗时对任意点速度进行规划.本文结合实际无人车的应用对轨迹搜索空间生成、道路行车模拟以及路径跟踪进行了仿真实验,并基于实际的环境数据进行了轨迹规划实验.
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出版历程
  • 收稿日期:  2014-05-04
  • 修回日期:  2014-08-18
  • 刊出日期:  2015-03-20

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