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Car-following control model, method and system based on optimized transmission information

A technology for transmitting information and control models, applied in control/regulation systems, two-dimensional position/channel control, transportation and packaging, etc., can solve problems such as poor stability of car-following control and failure to consider the impact of operation

Active Publication Date: 2022-06-21
GUANGXI NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a car-following control model, method and system based on optimized transmission information to solve the problem of car-following caused by not considering the impact of estimated optimal speed difference information on vehicle operation in the prior art Problems with poor control stability

Method used

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  • Car-following control model, method and system based on optimized transmission information
  • Car-following control model, method and system based on optimized transmission information
  • Car-following control model, method and system based on optimized transmission information

Examples

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Embodiment Construction

[0105] Model example:

[0106] This embodiment provides a car-following control model based on optimized transmission information, and the model is:

[0107]

[0108] y i (n+1)=v i-1 (n)t-v i (n)t+y i (n)

[0109] where: v i (n) and y i (n) represents the position and speed of the i-th vehicle at the n time step, respectively. Suppose there are N vehicles in the fleet, and the value of i ranges from 1 to N-1; t represents the relaxation time, and u i (n) and respectively represent the feedback control term and the optimized speed term of the optimal transmission information of the i-th vehicle at time step n, α i is the matching coefficient of the i-th vehicle, and its calculation methods are:

[0110]

[0111]

[0112]

[0113] in the formula n i (n), ζ i (n) represent the speed value of the vehicle with the highest speed in the convoy at the n time step, the distance between the i-th vehicle and the i-1-th vehicle, and the distance parameter of the ...

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Abstract

The invention relates to a car-following control model, method and system based on optimized transmission information. In the vehicle-following control model, the influence of wireless transmission of estimated optimal speed difference information on traffic flow is considered, modern control theory is used, and the idea of ​​cybernetics is used. Realize the stability analysis of the control model, determine the parameters of the feedback gain of the control, so as to solve the problem that the existing car-following control model does not take into account the influence of the estimated and optimized speed difference information on the vehicle operation, which leads to the stability of the car-following control of the vehicle problem of poor sex.

Description

technical field [0001] The invention relates to the technical field of vehicle following control, in particular to a car following control model, method and system based on optimized transmission information. Background technique [0002] With the rapid development of the economy, the number of domestic vehicles is also increasing year by year, resulting in the traffic system facing more and more serious congestion problems. Traffic congestion will not only increase social costs and cause waste of energy and resources, but also increase environmental pollution [1]. Urban traffic exhaust emissions have become the largest source of urban air pollution, constantly endangering people's health and seriously affecting residents' lives. In order to study the internal operation mechanism of the transportation system, domestic and foreign scholars [1-10] have done a lot of research work. [0003] In 1961, Newell first defined the optimal speed function by using a vehicle following ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/02
CPCG05D1/0223G05D1/0214G05D1/0221G05D1/0289G05D1/0295G05D1/0276G05D2201/02
Inventor 彭光含汤瑞王可可
Owner GUANGXI NORMAL UNIV
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