System and method for lane departure warning

Abstract

The invention relates to the technical field of automotive electronics, and particularly relates to a system and method for lane departure warning. The method includes the steps that a self-vehicle driving route is collected, and when the minimum distance between the self-vehicle driving route and the lane line is less than the departure threshold d0, it is determined that the vehicle is in a lanedeparture state; the distance between the self-vehicle and a target vehicle is collected, and when the minimum distance between the self-vehicle and the target vehicle is less than the threshold L0,it is determined that the vehicle is in a collision danger state; when the vehicle is in the lane departure state and the collision danger state simultaneously, the driver's active steering operationis judged, and when the driver does not have an active steering operation, an alarm signal is output. The system and method for lane departure warning have the advantages that when a running vehicle is near the lane line but there is no danger of collision, no warning is carried out, and when the alarm reaches the nominal time or the danger has been removed, the alarm is stopped, and therefore frequent alarms are prevented to satisfy driver's comfort driving requirements.

Description

technical field [0001] The invention relates to the technical field of automotive electronics, in particular to a lane departure warning system and method. Background technique [0002] Due to the driver's inattention or negligence, the vehicle often deviates from the lane and causes accidents such as collisions and rear-end collisions. There are also drivers who intentionally walk near the lane or in the middle of the road due to driving habits and violate relevant traffic regulations, which can easily cause traffic accidents. Collisions and other safety accidents, and reduce the efficiency of road traffic. The usual lane departure warning system is evaluated according to the expected driving route of the vehicle. If the warning system judges that the driver is about to deviate from the target lane, it can continuously send out an alarm signal or take lane keeping measures, and the vehicle will make a safe response in advance. [0003] The above methods can effectively avo...

AI Technical Summary

Problems solved by technology

[0003] The above methods can effectively avoid the occurrence of safety accidents, but to a certain extent, it reduces the driver's closeness to the early warning system. If the driver consciously drives near the lane line, the system will cause a long-term alarm

Especially on two-lane roads, some drivers prefer to drive in the middle of the road. The early warning system recognizes that the distance to the lane line is close, and it judges that the vehicle is potentially dangerous and frequently false alarms

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