期刊
TRANSPORTATION RESEARCH RECORD
卷 2674, 期 8, 页码 638-652出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/0361198120918873
关键词
-
资金
- National Natural Science Foundation of China [71871163, 61803284]
- National Key R&D Program of China [2018YFB1600600]
- Chinese Scholarship Council (CSC) [201806260147]
- Research Institute of Highway Fundamental Research Program [20189060]
Communication delay is detrimental to the performance of cooperative adaptive cruise control (CACC) systems. In this paper, we incorporate communication delay explicitly into control design and propose a delay-compensating CACC. In this new CACC system, the semi-constant time gap (Semi-CTG) policy, which is modified on the basis of the widely-used CTG policy, is employed by a linear feedback control law to regulate the spacing error. The semi-CTG policy uses historical information of the predecessor instead of its current information. By doing so, communication delay is fully compensated, which leads to better stability performance. Three stability properties-local stability, string stability, and traffic flow stability-are analyzed. The local stability and string stability of the proposed CACC system are guaranteed with the desired time gap as small as the communication delay. Both theoretical analysis and simulation results show that the delay-compensating CACC has better string stability and traffic flow stability than the widely-used CACC system. Furthermore, the proposed CACC system also shows the potential for improving traffic throughput and fuel efficiency. Robustness of the proposed system against uncertainties of sensor delay and vehicle dynamics is also verified with simulation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据