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Ramp cooperative merging controlling method and system of intelligent networking vehicle

A control method and technology of an intelligent network, which are applied to the traffic control system of road vehicles, traffic control system, and control traffic signals, etc., can solve the problem of low accuracy of traffic data, failure to consider the operating characteristics of individual vehicles, and the influence of traffic flow on the main line of ramp vehicles. and other problems to achieve the effect of enhancing reliability

Active Publication Date: 2019-04-09
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traffic data collected by fixed detectors is not high in accuracy, and often can only reflect the traffic conditions at fixed points for a period of time, which cannot meet the real-time requirements
In addition, the existing ramp control methods do not consider the operating characteristics of individual vehicles, and the unsuitable merging behavior of ramp vehicles sometimes still has a large impact on the mainline traffic flow

Method used

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  • Ramp cooperative merging controlling method and system of intelligent networking vehicle
  • Ramp cooperative merging controlling method and system of intelligent networking vehicle
  • Ramp cooperative merging controlling method and system of intelligent networking vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] This embodiment is based on the following assumptions:

[0043] (1) The coordinated inbound control area in the embodiment is in an intelligent network environment, and a roadside control unit is equipped at the intersection of the main line and the ramp. The actual coverage of the control area depends on the transmission of the DSRC communication equipment loaded on the roadside unit scope;

[0044] (2) After the vehicle enters the control area, it can carry out real-time information transmission with other surrounding vehicles and roadside units, and completely follow the instructions of the roadside control unit, and follow the vehicle in front of the virtual queue according to the given cooperative adaptive cruise control law car-following operation;

[0045] (3) In the coordinated merging control area, the position of the merging point is fixed, and all ramp vehicles perform merging operations at this point;

[0046] (4) The speed of information transmission and ...

Embodiment approach

[0047] The specific implementation method is as follows:

[0048] Such as figure 1 Shown is a schematic diagram of the coordinated integration of intelligent networked vehicles into the control area of ​​the present invention. This area is composed of the rightmost lane of the expressway, the entrance ramp, the acceleration lane, the merging point and the merging decision point. The actual control range of the area depends on the communication range of the roadside control unit.

[0049] Such as figure 2 Shown is a schematic structural diagram of the ramp coordinated merging control method for intelligent networked vehicles of the present invention. The information detection system in the roadside control unit monitors the running status of the ramp vehicles in real time. When a ramp vehicle that has not been processed for the merge decision arrives at the merge decision point in the control area, the information detection system collects all unprocessed main line Accelera...

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PUM

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Abstract

The invention discloses a ramp cooperative merging controlling method of an intelligent networking vehicle, and relates to the technical field of intelligent networking traffic. The number of vehiclesthat merge to the freeway from the ramp is determined and the merging sequence of the vehicles that merge from the ramp is optimized according to the freeway and the ramp vehicle state information acquired at the freeway entrance ramp in real time, so that the influence on the vehicles driven on the freeway is reduced, and the traffic capacity of the road section is improved. The invention further discloses a ramp cooperative merging controlling system of an intelligent networking vehicle. According to the ramp cooperative merging controlling system of an intelligent networking vehicle, the actual application of the intelligent networking technology in ramp cooperative merging is realized, and the traffic efficiency of the freeway system is improved.

Description

technical field [0001] The present invention relates to the technical field of intelligent networked transportation, in particular to a method and system for controlling the coordinated ramp-in of intelligent networked vehicles. Background technique [0002] With the rapid growth of the number of motor vehicles in my country, the current construction and development of expressways have become more and more difficult to meet people's growing travel needs. Especially in the area around the entrance ramp, the bottleneck section is often caused by the merging behavior. When the traffic flow on the main road of the expressway is dense, the on-ramp vehicles have to slow down to wait for a suitable merging gap, which leads to queuing and even backflow of vehicles at the on-ramp. At the same time, the merging behavior of some ramp vehicles without finding an acceptable gap will force the main line vehicles to slow down or even brake suddenly, greatly reducing the operating efficien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07
CPCG08G1/075
Inventor 徐凌慧冉斌张健卢佳李汉初
Owner SOUTHEAST UNIV
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