Intersection deadlock identification method for mixed autonomous vehicles flow

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United States of America Patent

PATENT NO 11978338
APP PUB NO 20230068181A1
SERIAL NO

17483733

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Abstract

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Provided is an intersection deadlock identification method for a mixed flow of autonomous vehicles. This method considers the reality that the intersection traffic flow is composed of human driven vehicles and connected autonomous vehicles. Firstly, the two-dimensional coordinates, speed and front wheel steering angle information of all vehicles in the intersection are obtained, and the blockage graph of vehicles is constructed on the assumption that the front wheel steering angles of all vehicles are fixed. If there is no ring structure in the blockage graph, there is no deadlock; if there is a ring structure, the evasion distance propagation algorithm is used to calculate the evasion requirement distance of a vehicle in the ring. When the evasion requirement distance is greater than the permitted travelling distance of the vehicle itself, a weak traffic deadlock exists.

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Patent Owner(s)

Patent OwnerAddress
ZHEJIANG UNIVERSITY310013 YUHANG TANG ROAD XIHU DISTRICT HANGZHOU ZHEJIANG 866 HANGZHOU CITY ZHEJIANG PROVINCE 310013

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Qi, Hongsheng Hangzhou, CN 3 2

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