Feedback control design method for reducing traffic congestion

Abstract

The invention discloses a feedback control design method for reducing traffic congestion. The method comprises the following steps: 1, a state space model of an urban road intersection is built; 2, matrixes A(k) and B(k) are designed; 3, as the number x(k) of vehicles at the intersection and the incoming vehicle u(k) are constrained, constrained conditions for meeting the road vehicle number and the incoming vehicles are designed; 4, the minimum performance index for model prediction control is designed; and a model prediction control state feedback control law for road traffic vehicle information is designed. Through means such as road data acquisition, model building, constraint control and performance analysis, the congestion problem caused by heavy traffic in a primary road can be relieved, and on the premise of ensuring steady and safe running of vehicles at the urban road intersection, the control effects are good.

Description

Technical field: [0001] The invention belongs to the technical field of automation, and proposes a state feedback control design method for reducing the phenomenon of urban intersection road traffic congestion. Through model predictive control, constraint control, performance optimization analysis, control law design and other technologies, it can effectively control the number of vehicles at intersections prone to congestion, reduce road congestion, and can be used in the road transportation industry. Background technique: [0002] Traffic congestion has become a worldwide problem and has attracted much attention, and many countries are troubled by this problem to varying degrees. Traffic congestion will increase traffic delays, reduce driving speed, and even lead to urban traffic paralysis. During the congestion period, the fuel consumption and exhaust emissions of vehicles will be increased, which will aggravate the energy shortage crisis and environmental degradation. ...

AI Technical Summary

Problems solved by technology

The biggest disadvantage of cars is that they take up road space, coupled with insufficient road capacity, improper design, and too many interchanges, resulting in frequent traffic congestion in urban areas

[0004] With the introduction of intelligent transportation system, that is, the use of advanced electronic information, communication, automatic control, computer network and other technologies, through reasonable control and scheduling of vehicles, and the allocation of traffic signal time, the problem of urban road congestion has been significantly improved, but still There are traffic jams on most arterial roads and arterial roads during holidays or morning and evening rush hours

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