基于比功率的自动驾驶交通流油耗分析

交通运输系统工程与信息 ›› 2020, Vol. 20 ›› Issue (1): 91-96.

所属专题：自动驾驶技术

• 智能交通系统与信息技术 • 上一篇下一篇

基于比功率的自动驾驶交通流油耗分析

秦严严^*1，王昊²，何兆益¹，冉斌³

1. 重庆交通大学交通运输学院，重庆 400074；2. 东南大学城市智能交通江苏省重点实验室，南京 210096； 3. 威斯康星大学麦迪逊分校土木与环境工程系，威斯康星州麦迪逊 53706，美国

收稿日期:2019-06-19 修回日期:2019-10-24 出版日期:2020-02-25 发布日期:2020-03-02
作者简介:秦严严(1989-)，男，江苏沛县人，讲师，博士.
基金资助:
国家自然科学基金/ National Natural Science Foundation of China(51878161)；重庆市教委科学技术研究项目/ Science and Technology Research Program of Chongqing Municipal Education Commission(KJQN201900730)；重庆交通大学高层次人才科研启动项目/Research Foundation for Talented Scholars of Chongqing Jiaotong University(19JDKJC-C003).

Fuel Consumption Analysis of Automated Driving Traffic Flow Based on Vehicle Specific Power

QIN Yan-yan¹,WANG Hao², HE Zhao-yi¹, RAN Bin³

1. School of Traffic and Transportation, Chongqing Jiaotong University, Chongqing 400074, China; 2. Jiangsu Key Laboratory of Urban ITS, Southeast University, Nanjing 210096, China; 3. Department of Civil and Environment Engineering, University ofWisconsin-Madison, Madison, WI 53706, USA

Received:2019-06-19 Revised:2019-10-24 Online:2020-02-25 Published:2020-03-02

摘要/Abstract

摘要：

鉴于油耗与节约能源和车辆尾气排放直接相关，探究自动驾驶车辆对油耗的影响. 以手动驾驶车队与自动驾驶车队为数值仿真对象，在交通震荡环境下设计数值仿真实验. 对车队的车辆数量，车队初始速度，以及自动驾驶车辆的车间通信延时做参数敏感性分析. 基于机动车比功率的油耗评价模型，对仿真结果进行统计；相比于手动驾驶车队，计算自动驾驶车队平均油耗率的降低. 从交通流稳定性角度考察油耗降低与稳定性状态转变之间的内在关联性. 研究结果表明，自动驾驶车辆对油耗的降低幅度与车队初始速度有关，与交通流稳定性之间存在定性的影响关系，交通流的平稳性有利于显著改善车辆油耗降低的幅度. 研究结果可为大规模自动驾驶背景下的油耗控制策略提供理论参考.

关键词: 交通工程, 交通流油耗, 数值仿真, 自动驾驶车队, 稳定性

Abstract:

Fuel consumption has a direct relationship with energy conservation and vehicle exhaust emissions. This paper explores the impacts of automated vehicles on the fuel consumption. The manual driving platoon and automated driving platoon were considered as the objective in numerical simulations, which were performed in the environment of traffic oscillations. Additionally, parameter sensitivity analyses of vehicle number, initial speeds, and vehicle-to-vehicle communication delay of automated vehicles were also conducted in simulations. Then, the vehicle-specific power-based evaluation model of fuel consumption was used to calculate the reduction of average fuel consumption rate by automated driving compared with manual driving. Meanwhile, from the perspective of traffic flow stability, the intrinsic relevance between fuel consumption reduction and stability state transition was evaluated. The results show that reduction magnitudes of fuel consumption by automated vehicles have relation with initial speeds of vehicular platoon. Moreover, there is qualitative influence relationship between fuel consumption reduction and traffic flow stability. This means the stable vehicular flow has benefits in significantly improving the reduction magnitude of fuel consumption, which can be used for providing theoretical reference for fuel control strategy, under the background of large-scale automated vehicles.

Key words: traffic engineering, traffic flow fuel consumption, numerical simulation, automated driving platoon, stability

中图分类号:

U491

秦严严，王昊，何兆益，冉斌. 基于比功率的自动驾驶交通流油耗分析[J]. 交通运输系统工程与信息, 2020, 20(1): 91-96.

QIN Yan-yan,WANG Hao, HE Zhao-yi, RAN Bin. Fuel Consumption Analysis of Automated Driving Traffic Flow Based on Vehicle Specific Power[J]. Journal of Transportation Systems Engineering and Information Technology, 2020, 20(1): 91-96.

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链接本文: http://www.tseit.org.cn/CN/abstract/abstract19980.shtml

http://www.tseit.org.cn/CN/Y2020/V20/I1/91

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基于比功率的自动驾驶交通流油耗分析

Fuel Consumption Analysis of Automated Driving Traffic Flow Based on Vehicle Specific Power

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