车辆对车辆合作驾驶模型考虑通信网络端到端延迟
Yi-Rong Kang1, Yijun Chen2, Chuan Tian3
1School of Transportation Engineering, Guizhou Institute of Technology, Guiyang, 550003, China.
Scientific reports
|December 27, 2023
概括
网络传输延迟破坏了合作驾驶的稳定性. 增加的延误会使车辆对车辆系统的交通流动稳定性和拥堵管理恶化.
科学领域:
- 交通流动动态 交通流动动态
- 通信网络分析 通信网络分析
- 智能运输系统 智能运输系统
背景情况:
- 车辆对车辆 (V2V) 通信使协作驾驶成为可能,旨在优化交通流.
- 通信网络中端到端的传输延迟是影响系统性能的关键因素.
- 现有的汽车跟踪模型往往不能完全解释这些传输延迟.
研究的目的:
- 调查端到端传输延迟对协作驾驶的影响.
- 开发一个将传输延迟纳入汽车后续动态的模型.
- 在不同延迟条件下分析稳定性标准和交通流动行为.
主要方法:
- 修改了包含传输延迟参数的纽埃尔汽车追踪模型.
- 开发一个协作驾驶 (CD) 和最佳速度 (OV) 模型.
- 使用减小扰动方法进行稳定性分析.
- 修改的Korteweg-de Vries (mKdV) 方程和密度波解决方案的导数.
主要成果:
- 端到端传输延迟对V2V合作驾驶系统的稳定性产生重大影响.
- 增加的传输延迟导致交通流动稳定性下降.
- 随着传输延迟的增加,系统抑制交通拥堵的能力会恶化.
结论:
- 变速器延迟是影响协同驾驶的安全性和效率的关键参数.
- 尽量减少网络延迟的策略对于强大的V2V通信和流量管理至关重要.
- 开发的mKdV模型为在延迟诱导的不稳定性下,提供了对流量流动行为的洞察.
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