Purpose

The purpose of this study is to explore the influence of the electronic throttle (ET) dynamics and the average speed of multiple preceding vehicles on the stability of traffic flow.

Design/methodology/approach

An extended car-following model integrating the ET dynamics and the average speed of multiple preceding vehicles is presented in this paper. The novel model’s stability conditions are obtained by using the thought of control theory, and the modified Korteweg–de Vries equation is inferred in terms of the nonlinear analysis method. In addition, some simulation experiments are implemented to explore the properties of traffic flow, and the results of these experiments confirm the correctness of theoretical analysis.

Findings

In view of the results of theoretical analysis and numerical simulation, traffic flow will become more stable when the average speed and ET dynamics of multiple preceding vehicles are considered, and the stability of traffic flow will also be enhanced by increasing the number of preceding vehicles considered.

Research limitations/implications

This study leaves the factors such as the mixed traffic flow, the multilane and so on out of account in real road environment, which more or less influences the traffic flow’s stability, so the real traffic environment is not fully reflected.

Originality/value

There is little research integrating ET dynamics and the average velocity of multiple preceding vehicles to study the properties of traffic flow. The enhanced model constructed in this study can better reflect the real traffic, which can also give some theoretical reference for the development of connected and autonomous vehicles.

中文翻译：

---

集成多辆前车平均速度和电子油门动力学的扩展跟车模型

目的

本研究的目的是探讨电子油门（ET）动力学和多辆前车的平均速度对交通流稳定性的影响。

设计/方法/方法

本文提出了一种集成了 ET 动力学和多辆前车平均速度的扩展跟车模型。利用控制理论的思想获得了新模型的稳定性条件，并根据非线性分析方法推断了修正的Korteweg-de Vries方程。此外，还进行了一些仿真实验来探索交通流的特性，这些实验的结果证实了理论分析的正确性。

发现

从理论分析和数值模拟的结果来看，考虑多前行车辆的平均速度和ET动力学时，交通流会变得更加稳定，并且通过增加考虑的前行车辆数也会增强交通流的稳定性。 .

研究限制/影响

本研究未考虑真实道路环境中的混合交通流、多车道等因素，或多或少地影响交通流的稳定性，不能充分反映真实的交通环境。

原创性/价值

很少有研究将 ET 动力学与多辆前车的平均速度相结合来研究交通流的特性。本研究构建的增强模型可以更好地反映真实交通情况，也可以为网联汽车和自动驾驶汽车的发展提供一定的理论参考。