Path guide method and device capable of avoiding tailgating as well as vehicle intelligent driving assistance system

Abstract

The invention provides a path guide method and a path guide device capable of avoiding tailgating as well as a vehicle intelligent driving assistance system. The method comprises the following steps:acquiring the relative motion state of the current vehicle as well as the current vehicle and the nearby vehicles, wherein the relative motion state comprises relative speed and relative distance, andthe nearby vehicles are front vehicles, left lane back vehicles and right lane back vehicles; according to the relative motion state of the current vehicle and the front vehicles, judging whether tailgating risk exists in the current vehicle or not; and if a tailgating risk exists in the current vehicle, generating path guide information according to the relative motion state of the current vehicle, the left lane back vehicles and the right lane back vehicles to guide the vehicle to avoid tailgating. Reasonable lane change information is recommended according to the road vehicle state under the condition that the tailgating risk exists in the vehicle, and a driver can be guided to perform lane change safely and effectively, so that the tailgating risk is avoided.

Description

technical field [0001] The invention relates to the technical field of intelligent driving assistance, in particular to a route guidance method and device for avoiding rear-end collisions, and a vehicle intelligent driving assistance system. Background technique [0002] Expressways are the hardest-hit areas of automobile traffic accidents, especially the most frequent rear-end collisions. In the rear-end collision accident on the expressway, the causes of the accident mostly focus on two points: the speed difference between the front and rear vehicles is large, or the rear vehicle lacks an evasive route (or an accident occurs during the evasion process). [0003] When the car is running at high speed, if the front is in danger and slows down, when the vehicle is forced to slow down, it is often only guaranteed to stop itself, but there is no guarantee that the rear car can stop. Once the rear car cannot brake, the vehicle will be rear-end. In order to avoid a rear-end coll...

AI Technical Summary

Problems solved by technology

[0003] When the car is running at high speed, if the front is in danger and slows down, when the vehicle is forced to slow down, it is often only guaranteed to stop itself, but there is no guarantee that the rear car can stop. Once the rear car cannot brake, the vehicle will be rear-ended

In order to avoid a rear-end collision, the driver needs to change lanes. However, in an emergency, the driver often only pays attention to the road conditions ahead, but has no time to observe the rear situation, and rashly takes evasive actions, which is likely to encounter a rear-end collision from the rear vehicle risk

At the same time, the existing driving assistance systems usually only have functions such as detection and warning of vehicle distance, lane keeping prompts, and following distance prompts, and lack of guidance measures to avoid rear-end collisions

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