Ramp collaborative merging method and system under vehicle-vehicle communication combined with assisted driving environment
A technology for assisted driving and vehicle-to-vehicle communication, applied in vehicle-to-vehicle communication, road vehicle traffic control systems, traffic control systems, etc., can solve problems such as the inability to predict the ramp-in cost and the lack of research on collaborative control methods. Achieve the effects of avoiding short-sightedness, reducing extrusion, and low interference
Active Publication Date: 2020-05-19
SOUTHEAST UNIV
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Problems solved by technology
[0006] However, most of the existing research is to provide safety warnings and lane change prompts for vehicles in the merge area, and there are few studies on the cooperative control method of assisted driving vehicles in the vehicle-to-vehicle communication environment, and the existing research assisted driving systems cannot predict the cost of ramp merge. Helping Drivers Make Decisions
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[0033]The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0034] Such as figure 1 As shown, the embodiment of the present invention discloses a vehicle-to-vehicle communication combined with a ramp-in coordination method in an assisted driving environment. The scenario where this method is used is that all vehicles on the road are equipped with an assisted driving system, and rely on the inter-vehicle communication Communication realizes the coordination of changing lanes and merging. In this method, the ramp vehicle sends an import request to each upstream vehicle on the main road that establishes communication; the auxiliary driving system of the main road vehicle estimates the cost of allowing the ramp vehicle to merge in, and the driver of the main road vehicle The cost judges whether to accept the import request; if there is a main road vehicle that agrees to the ramp vehicle to merge in front of...
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The invention discloses a cooperative ramp merging method and system based on combination of vehicle-vehicle communication and an auxiliary driving environment. According to the method, a ramp vehiclesends a merging request to each main road upstream vehicle which establishes communication, and the main road vehicle estimates the cost of allowing the ramp vehicle to merge, and judges whether themerging request is received or not; if the main road vehicles agree to enable the ramp vehicle to merge in front, then the ramp vehicle selects one main road vehicle to cooperatively perform merging operation; or otherwise, the ramp vehicle continuously sends the request until the request is allowed, or until the distance between the ramp vehicle and a parking line is smaller than a certain distance, and the ramp vehicle must be slowed down and stopped. Compared with the prior art, the ramp cooperative merging method and system has the advantages that the ramp vehicle negotiates with the mainroad vehicles in advance when preparing to merge into a main road, and an auxiliary driving system can estimate the cost of allowing the ramp vehicle to merge in front, so that a driver can be assisted to judge whether the request is received or not, finally the ramp vehicle can smoothly merge into the main road, and the vehicle flow of the main road can be affected as small as possible.
Description
technical field [0001] The invention belongs to the field of ramp-in control in traffic signal control, and in particular relates to a method and system for synergistic ramp-in in a vehicle-to-vehicle communication combined with an assisted driving environment. Background technique [0002] With the great investment in transportation infrastructure in major cities, especially the enthusiasm for expressway construction is increasing day by day. As the skeleton of the urban road system, the expressway bears the main traffic flow in the city, can effectively alleviate urban traffic congestion, improve the operation efficiency and service level of the urban road network, and has the characteristics of smooth, fast, comfortable and convenient. However, with the rapid increase of urban traffic volume, urban expressways are losing their fast and efficient functions, and if they are not properly handled, they will become congestion nodes in the urban traffic system. How to use effe...
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IPC IPC(8): G08G1/01G08G1/052G08G1/08G08G1/0968G08G1/0969G08G1/123H04W4/46
CPCG08G1/0104G08G1/052G08G1/08G08G1/096855G08G1/0969G08G1/123H04W4/46
Inventor 王昊姚东成
Owner SOUTHEAST UNIV