Analysis of traffic flow based on car-following theory: a cyber-physical perspective
Analysis of traffic flow based on car-following theory: a cyber-physical perspective
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DOI：
10.1007/s11071-015-2534-y
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发表时间：
2015-12
影响因子：
5.6
通讯作者：
Hui Liu;Dihua Sun;Min Zhao
中科院分区：
文献类型：
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作者：
Hui Liu;Dihua Sun;Min Zhao
本文从信息物理系统的角度研究了车辆跟驰模型。与传统的研究只集中在驾驶过程的网络方面相比，我们进一步研究了驾驶过程的车辆动力学，这是驾驶过程的物理方面的考虑。详细介绍了在三种典型跟驰模型中引入车辆惯性系数和时滞系数的方法。通过分析，利用控制理论得到了典型跟驰模型的稳定性条件，并通过计算机仿真验证了理论结果。结果表明，车辆动力学对交通流的动力学特性和稳定性有很大的影响。
The car-following models are investigated from a new point of cyber-physical systems in this paper. Comparing with the traditional researches which only focus on cyber aspect of the driving process, we further study the driving process with the consideration of vehicle dynamics which is physical aspect of the driving process. Detailedly, both the inertia coefficient and time-delay coefficient of the vehicle are introduced into three typical car-following models. By analysis, the stability conditions of the typical car-following models are obtained by using control theory and the theoretical results are also demonstrated through computer simulation. All the results reveal that vehicle dynamics has strong effect on traffic dynamics and the stability of traffic flow.