Vehicle speed control system and method of ramp merge area

Abstract

The invention discloses a vehicle speed control system and method of a ramp merge area, and belongs to the field of road traffic control. The system comprises a vehicle-mounted communication device and a roadside control unit; the vehicle-mounted communication device collects vehicle motion information and sends the vehicle motion information to the roadside unit; the road side unit receives information of all vehicles within a control area, makes decision in a concentrated way, manages and controls time when vehicles reaching a merge point in a unified way by utilizing a vehicle time regulation method within the area, forms vehicle behavior control rates in the area according to a time control requirement by utilizing a vehicle behavior optimized control method, and sends the control rateto each vehicle so that the vehicle can arrive at the merge point on time according to the received control rate. A vehicle and road concentrated communication technology is used, vehicle merge timeis controlled and vehicle merge behaviors are optimized in the control area, so that merging with high efficiency and comfort level and low oil consumption is realized for vehicles in the ramp area.

Description

technical field [0001] The invention belongs to the field of road traffic, and relates to a vehicle speed control system and method in a ramp merge area. Background technique [0002] About 30% of the traffic accidents in China every year occur in the highway ramp area, and the main cause is the traffic disturbance caused by the incoming vehicles in the ramp merge area. The problem of traffic control in the area where the ramp merges and diverges has also received more and more attention. At present, vehicle control in the ramp merging area mainly relies on traffic lights and other controls. This method is simple and can only control the passage of vehicles, but not the speed of vehicles. It is difficult to solve the problems of high vehicle collision risk, low merging efficiency, and high fuel consumption in the ramp merging area. With the development of communication technology, the Internet of Vehicles technology has brought a new direction to the vehicle control in the ...

AI Technical Summary

Problems solved by technology

At present, vehicle control in the ramp merging area mainly relies on traffic lights and other controls. This method is simple and can only control the passage of vehicles, but not the speed of vehicles. It is difficult to solve the problems of high collision risk, low merging efficiency, and high fuel consumption in the ramp merging area.

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