Distributed cooperative adaptive cruise control method near intersection based on wireless communication

A technology of adaptive cruise and control method, applied in the field of intelligent transportation, can solve the problems of low traffic efficiency, low intersection throughput, low safety and so on

Active Publication Date: 2018-11-23
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the deficiencies in the prior art, the present invention provides a decentralized cooperative adaptive cruise control method near intersections based on wireless communication, which solves the problems of low security, low throughput at intersections, and problems of existing adaptive cruise control methods. low traffic efficiency

Method used

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  • Distributed cooperative adaptive cruise control method near intersection based on wireless communication
  • Distributed cooperative adaptive cruise control method near intersection based on wireless communication
  • Distributed cooperative adaptive cruise control method near intersection based on wireless communication

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Embodiment Construction

[0090] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0091] Such as figure 2 Shown, a kind of decentralized cooperative adaptive cruise control method near the intersection based on wireless communication, comprises steps:

[0092] 1. Establish a longitudinal vehicle model with three states of position, velocity and acceleration, and calculate the tracking error of inter-vehicle distance, velocity and acceleration by introducing expected velocity and expected acceleration;

[0093] 2. In the fleet control method based on the particle swarm optimization algorithm (PSO), define a cost function, establish a new criterion for comparing the advantages and disadvantages of particles according to the constraints, and obtain an improved particle swarm o...

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Abstract

The invention discloses a distributed cooperative adaptive cruise control (CACC) method near an intersection based on wireless communication, and aims to provide an optimal route proposal for each vehicle so that the vehicle can pass through the intersection without being interrupted, and minimize an intersection delay so that as many vehicles as possible can pass through the intersection. The method is characterized by fully utilizing the V2X communication technology and an ACC system to establish a distributed CACC vehicle motion model suitable for a road intersection; utilizing a fleet control method based on a particle swarm optimization algorithm to effectively reduce the tracking error of the vehicle; using a trajectory planning method and a space management method to provide convenience for a sub-fleet or an individual vehicle to accelerate through the intersection or decelerate to wait for a next opportunity; and reorganizing the fleet to increase the throughput of the intersection in consideration of vehicle safety, fuel consumption, speed limit, different characteristics of the vehicle and passenger comfort.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and in particular relates to a wireless communication-based decentralized cooperative adaptive cruise control method near an intersection. Background technique [0002] V2X (Vehicle-to-everything, vehicle and anything) refers to the information exchange between the vehicle and the outside world, and is a general term for a series of vehicle communication technologies. V2X mainly includes vehicle-to-vehicle (V2V, Vehicle to Vehicle) communication through wireless ad hoc network and V2I (Vehicle to Infrastructure vehicle and infrastructure) communication through dedicated short-range communication (DSRC, Dedicated Short-Range Communication). Key technology of transportation system. Based on V2X technology, it can not only greatly improve traffic safety, reduce traffic accident rate, and reduce congestion, but also provide low-cost, easy-to-deploy support and basic platform for a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/09G08G1/07G08G1/00H04W4/02H04W4/029H04W4/44H04W4/46
CPCG08G1/07G08G1/09G08G1/20H04W4/02H04W4/027H04W4/029H04W4/44H04W4/46
Inventor 齐丽娜吴荣
Owner NANJING UNIV OF POSTS & TELECOMM
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