通过对联网和自动驾驶汽车的车队控制和车道管理来增强混合交通流
Yichuan Peng1, Danyang Liu1, Shubo Wu1
1Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804, China.
Sensors (Basel, Switzerland)
|February 13, 2025
概括
一个新的混合控制框架通过将互联和自动驾驶汽车 (CAV) 与人驾驶汽车 (HDV) 集成来增强混合交通流. 该系统增加了道路容量,并大大提高了安全性,尤其是在较高的CAV市场透率下.
科学领域:
- 交通工程是交通工程.
- 智能运输系统 智能运输系统
- 自动驾驶汽车技术自动驾驶汽车技术
背景情况:
- 互联和自动驾驶汽车 (CAV) 将越来越多地与人驾驶汽车 (HDV) 共同存在.
- 集成的CAV显著影响混合交通流动的动态.
- 了解和管理这些影响对于未来的运输系统至关重要.
研究的目的:
- 开发和评估混合流量流量的混合控制框架.
- 评估该框架对道路容量,交通波动和安全的影响.
- 为在混合交通环境中有效部署CAV提供见解.
主要方法:
- 开发一种混合控制框架,将排队控制 (追赶机制) 与CAV的车道管理相结合.
- 宏观的流量模拟来评估框架的性能.
- 分析基本图,交通振荡和替代安全措施 (TTC,CIF,DRAC,TET).
主要成果:
- 道路容量显著增加,随着CAV市场透率 (MPR) 的上升,特别是在混合控制框架下.
- 显著缓解交通振荡和冲击波传播,从而提高效率.
- 在较高的CAV市场透率下大幅降低碰撞风险,安全措施表明.
结论:
- 拟议的混合控制框架有效地改善了混合流量运行.
- 由智能控制策略指导的CAV部署,在能力,效率和安全方面提供了巨大的好处.
- 这些发现支持CAV的战略整合,以优化未来的运输网络.
相关概念视频
Controller Configurations
83
Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
83
PD Controller: Design
171
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
171
Multi-input and Multi-variable systems
93
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence...
In the absence...
93
Load-frequency control
116
Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
116
Laminar Flow
563
Laminar flow represents a smooth, orderly fluid motion where particles move along parallel paths, resulting in minimal mixing between layers. Streamlined particle paths characterize this flow regime and occur under conditions where viscous forces dominate over inertial forces. The distinction between laminar, transitional, and turbulent flow is primarily determined by the Reynolds number, a dimensionless quantity calculated as:
563
Open and closed-loop control systems
622
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
622


