交通运输系统工程与信息 ›› 2017, Vol. 17 ›› Issue (6): 77-84.

• 系统工程理论与方法 • 上一篇    下一篇

道路几何设计对IDM 模型跟驰行为的影响

覃频频*1,裴世康1,杨春兰1,孟强2,万千3   

  1. 1. 广西大学机械工程学院,南宁530004;2. 吉林大学汽车学院,长春130012;3. 华蓝设计(集团)有限公司,南宁530004
  • 收稿日期:2017-06-02 修回日期:2017-08-07 出版日期:2017-12-25 发布日期:2017-12-25
  • 作者简介:覃频频(1975-),女,广西柳州人,副教授,博士.
  • 基金资助:

    国家自然科学基金/National Natural Science Foundation of China(51478113);广西自然科学基金/Guangxi Natural Science Foundation(2015GXNSFAA139280).

Influence of Road Geometrics on Car-following of the Intelligent Driver Model

QIN Pin-pin 1, PEI Shi-kang 1, YANG Chun-lan 1, MENG Qiang 2,WAN Qian 3   

  1. 1. College of Mechanical Engineering, Guangxi University, Nanning 530004, China; 2. College of Automotive Engineering, Jilin University, Changchun 130012, China; 3. Hua Lan Desgin (group)CO., LTD. Nanning 530004, China
  • Received:2017-06-02 Revised:2017-08-07 Online:2017-12-25 Published:2017-12-25

摘要:

考虑道路几何设计参数转弯半径、超高、坡度对车辆跟驰行为的影响,对车辆跟驰智能驾驶员模型(IDM)进行了改进.结合二自由度车辆动力学模型,利用Matlab/ Simulink 建立改进后的跟驰模型并进行仿真.仿真分析发现:在具有转弯、超高和坡度的道路上,改进后的模型,其跟驰车辆车头时距增大,行驶速度减小,保证了车辆行驶的安全性;车辆横摆角速度和侧向速度随半径和超高的增加而减小,保证了汽车操纵稳定性. 结果表明,改进后的模型能够更准确地描述道路几何设计对车辆跟驰行为的影响.

关键词: 交通工程, 跟驰行为, 车辆动力学, 智能驾驶员模型, 道路几何设计

Abstract:

An improvement of Intelligent Drive Model (IDM) considering the influence of road geometrics (slope, curve and superelevation) on car-following is established. Combining the two degree freedom vehicle dynamics model, the car-following simulation of the improved IDM is carried out by using Matlab/Simulink. The simulation results show that the improved IDM following car’s headway increases and speed decreases in the road with turning, super-elevation and some certain downhill or uphill gradient, which ensures the carfollowing safety. It is also found that the yaw rate and lateral velocity decrease with superelevation and radius increasing at certain gradients, which ensures the handling stability of the following car. The research results indicate that the modified IDM can more precisely response to the influence of gradients, radius and super-elevation than non-modified IDM.

Key words: traffic engineering, car- following, vehicle dynamics, intelligent driver model (IDM), road geometrics

中图分类号: