A reverse overtaking early warning method and system in a v2x Internet of Vehicles environment

Abstract

The invention discloses a reverse overtaking early warning method and system in a V2X vehicle networking environment, and relates to the field of intelligent driving. Based on the established lane-changing safety distance model, calculate the minimum longitudinal safety distance when changing lanes for the first time; establish an accelerated overtaking model, and calculate the accelerated overtaking time and uniform speed overtaking time based on the established accelerated overtaking model Obtain the minimum longitudinal safety distance between HV and RV‑1 after overtaking is completed; establish a reverse overtaking safety distance model, and based on the established reverse overtaking safety distance model, calculate the HV reverse overtaking longitudinal minimum safety distance; determine whether there is currently a reverse overtaking safety risks and give early warning. The present invention can realize accurate identification of complex reverse overtaking risks by establishing an integrated reverse overtaking model.

Description

technical field [0001] The invention relates to the field of intelligent driving, in particular to a reverse overtaking early warning method and system in a V2X Internet of Vehicles environment. Background technique [0002] The reverse overtaking scene is a common one among many vehicle-to-vehicle interaction scenarios in the road environment. Through the V2X (vehicle to everything, information exchange between vehicles and the outside world) Internet of Vehicles technology, the car can obtain information about the vehicle movement status that may appear in the reverse lane, which is It is an important means to solve the lack of long-distance target detection ability of the current single-vehicle intelligent driving, which can effectively avoid traffic accidents with the opposite vehicle when overtaking in the reverse direction. [0003] The reverse overtaking process consists of two lane-changing processes and an accelerating overtaking process. The latter two have relativ...

AI Technical Summary

Problems solved by technology

[0003] The reverse overtaking process consists of two lane-changing processes and an accelerating overtaking process. The latter two have relatively mature safety distance models. Reverse Overtaking Scenario for Vehicle Interaction

In addition, multi-vehicle information interaction based on V2X Internet of Vehicles technology has problems of system delay and inaccurate positioning accuracy. The traditional safety distance model only considers the change of vehicle motion status, and does not take delay and positioning factors into consideration.

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