汽车工程 ›› 2021, Vol. 43 ›› Issue (7): 995-1004.doi: 10.19562/j.chinasae.qcgc.2021.07.006
收稿日期:2020-08-28
修回日期:2021-01-28
出版日期:2021-07-25
发布日期:2021-07-20
通讯作者:
张志勇
E-mail:zzy04@163.com
基金资助:
Zhiyong Zhang1(
),Kai Long1,Ronghua Du1,Caixia Huang2
Received:2020-08-28
Revised:2021-01-28
Online:2021-07-25
Published:2021-07-20
Contact:
Zhiyong Zhang
E-mail:zzy04@163.com
摘要:
自动驾驶汽车高速超车时不仅要规划合理的换道路径来保证安全性,而且还要确保车辆高速转弯行驶的横向稳定性和舒适性。针对车辆超车的换道、匀速和换道3个阶段,分别规划了纵向速度和横向超车路径。提出了考虑路径曲率、换道时间、纵向车速的期望横摆角速度计算方法。以最小化横向位置偏差、横摆角速度跟踪偏差和控制增量为优化目标,通过可拓集的关联函数动态分配轨迹跟踪精度和横向稳定性的权重系数,建立了自动驾驶汽车轨迹跟踪的多目标模型预测可拓协调控制策略。数值仿真结果表明,提出的路径规划方法能保证车辆安全超车,轨迹跟踪控制策略不仅能精确地跟踪规划的路径,而且具有较高的横向稳定性和舒适性。
张志勇,龙凯,杜荣华,黄彩霞. 自动驾驶汽车高速超车轨迹跟踪协调控制[J]. 汽车工程, 2021, 43(7): 995-1004.
Zhiyong Zhang,Kai Long,Ronghua Du,Caixia Huang. Trajectory Tracking Coordinated Control for Autonomous Vehicle in High⁃speed Overtaking[J]. Automotive Engineering, 2021, 43(7): 995-1004.
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