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主管单位 中华人民共和国
工业和信息化部
主办单位 哈尔滨工业大学 主编 李隆球 国际刊号ISSN 0367-6234 国内刊号CN 23-1235/T

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引用本文:王昊,秦严严.网联车混合交通流渐进稳定性解析方法[J].哈尔滨工业大学学报,2019,51(3):88.DOI:10.11918/j.issn.0367-6234.201711066
WANG Hao,QIN Yanyan.Asymptotic stability analysis of traffic flow mixed with connected vehicles[J].Journal of Harbin Institute of Technology,2019,51(3):88.DOI:10.11918/j.issn.0367-6234.201711066
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网联车混合交通流渐进稳定性解析方法
王昊1,2,3,秦严严1,2,3
(1.城市智能交通江苏省重点实验室(东南大学), 南京 210096; 2.现代城市交通技术江苏高校协同创新中心 (东南大学), 南京 210096; 3. 东南大学 交通学院, 南京 210096)
摘要:
针对网联车与普通车构成的混合交通流不稳定性问题,提出一种网联车混合交通流渐进稳定性解析方法. 基于传递函数理论,应用跟驰模型推导扰动在交通流中传播时的传递函数,并建立不同网联车比例下的混合交通流渐进稳定性解析框架. 选取智能驾驶模型(intelligent driver model, IDM)与优化速度模型(optimal velocity model,OVM)分别作为网联车与普通车的跟驰模型,进行混合交通流渐进稳定性案例分析,并进行小扰动下的数值仿真. 研究结果表明:所建立的混合交通流渐进稳定性解析框架可计算得到关于网联车比例与平衡态速度的混合交通流稳定域;当平衡态速度大于21.5 m/s时,混合交通流可在任意网联车比例下稳定,当网联车比例大于0.63时,混合交通流可在任意平衡态速度下稳定;混合交通流稳定性数值仿真实验验证了理论解析的正确性. 所建立的网联车混合交通流渐进稳定性解析框架适用于不同跟驰模型的选取,能够用于分析真车实验条件下网联车对交通流稳定性的影响.
关键词:  交通流  渐进稳定性  解析研究  网联车辆  传递函数
DOI:10.11918/j.issn.0367-6234.201711066
分类号:U491.112
文献标识码:A
基金项目:国家自然科学基金(3,1); 江苏省研究生科研与实践创新计划(KYCX17_0146); 东南大学优秀博士学位论文培育基金(YBJJ1792)
Asymptotic stability analysis of traffic flow mixed with connected vehicles
WANG Hao1,2,3,QIN Yanyan1,2,3
(1. Jiangsu Key Laboratory of Urban ITS (Southeast University), Nanjing 210096, China; 2. Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies (Southeast University), Nanjing 210096, China; 3. School of Transportation, Southeast University, Nanjing 210096, China)
Abstract:
Focusing on the instability of mixed traffic flow including connected vehicles and traditional vehicles, this paper proposes an analytical method for the asymptotic stability of the mixed traffic flow with connected vehicles. Based on the transfer function theory, the car-following models were used to derive the transfer function of disturbances spreading in traffic flow. Then the analytical framework of asymptotic stability of mixed traffic flow was built under different proportions of connected vehicles. The intelligent driver model (IDM) and optimal velocity model (OVM) were selected as car-following models for connected vehicles and traditional vehicles, respectively. Subsequently, case analysis of asymptotic stability of mixed traffic flow was conducted and numerical simulations were performed under small disturbances. Results showed that the proposed analytical framework of asymptotic stability of the mixed traffic flow can be used to calculate the stability region of the mixed traffic flow related to connected vehicle proportion and equilibrium velocity. When the equilibrium velocity was larger than 21.5 m·s-1, the mixed traffic flow was stable under any connected vehicle proportion. When the connected vehicle proportion was larger than 0.63, the mixed traffic flow was stable under any equilibrium velocity. Moreover, the numerical simulation experiments of mixed traffic flow validated the soundness of the theoretical analysis. The analytical framework of asymptotic stability of mixed traffic flow can be applied to different car-following models. It can also be used to analyze impacts of connected vehicles on traffic flow stability under the condition of real experimental tests.
Key words:  traffic flow  asymptotic stability  analytical study  connected vehicles  transfer function

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