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A speed cooperative control method for mixed traffic in merge areas based on stability analysis

A mixed traffic and collaborative control technology, which is applied in the traffic control system of road vehicles, traffic control system, traffic flow detection, etc., can solve the problems of mixed traffic flow without effective research and control methods lagging behind, so as to reduce the risk of traffic flow , reduce the accident rate, reduce the effect of exhaust emissions

Active Publication Date: 2021-11-19
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

Although the existing research has established the concept of stability analysis, effective research has not been carried out on the implementation of control based on the stability analysis of mixed traffic flow
Especially in specific scenarios such as confluence areas, the hysteresis of existing control methods is becoming more and more obvious

Method used

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  • A speed cooperative control method for mixed traffic in merge areas based on stability analysis
  • A speed cooperative control method for mixed traffic in merge areas based on stability analysis
  • A speed cooperative control method for mixed traffic in merge areas based on stability analysis

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Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] In an embodiment of the present invention, a method for coordinated control of speed of mixed traffic in a merge area based on stability analysis is carried out according to the following steps:

[0028] Step S1, form a vehicle cluster in the form of "1+N", "1" represents one CAV, "N" represents the number of HVs following; "1+N" represents the mixed traffic composed of intelligent self-driving vehicle CAV and artificial vehicle HV flow. Construct the intra-cluster st...

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Abstract

The invention discloses a method for synergistic control of speed of mixed traffic in a merge area based on stability analysis, specifically: with "1+ N "The form constitutes a vehicle cluster, "1" represents an intelligent self-driving vehicle CAV," N "Represents the following multiple artificial vehicles HV; build an intra-cluster stability analysis model, and analyze the intra-cluster stability conditions; under the premise of satisfying the intra-cluster stability conditions, build an inter-cluster stability model, and analyze the inter-cluster stability conditions; based on Cluster and inter-cluster stability conditions, build cluster synergy speed control model, under satisfying cluster and inter-cluster stability conditions, guide the incoming cluster to enter the confluence area smoothly by controlling the CAV speed. The present invention takes the expressway confluence area as research Object, the speed cooperative control model is built on the premise of stability, which improves the accuracy, effectively reduces the risk of traffic flow, improves the dynamic space occupancy rate and reduces exhaust emissions.

Description

technical field [0001] The invention belongs to the technical field of speed control, and relates to a method for coordinated speed control of mixed traffic in a merge area based on stability analysis. Background technique [0002] In recent years, the increase in the number of motor vehicles and the development of urbanization have made traffic accidents, exhaust emissions, and environmental pollution more and more serious. The development of autonomous driving technology provides a feasible technical solution for the realization of intelligent and efficient transportation; the improvement of intelligent network technology provides a prerequisite for vehicle-to-vehicle communication under automatic driving. However, limited by technological development and policy requirements at this stage, the mixed traffic flow including CAV will last for a long time, making research on mixed traffic necessary and objectively valuable. At this stage, in the research of mixed traffic, spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
CPCG08G1/0125G08G1/0137
Inventor 郝威戎栋磊张兆磊易可夫王正武刘理吴其育
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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