Vehicle warning method, device, vehicle and storage medium

By obtaining vehicle position and road parameter data, determining the projection data of the target light source to cover the road length to control the light projection, the problem of ineffective warning of driverless cars under complex road conditions is solved, and driving safety is improved.

CN114889522BActive Publication Date: 2025-04-01CHINA FAW CO LTD
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Patent Information

Application Number
CN202210660432.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-13
Publication Date
2025-04-01
Estimated Expiration
2042-06-13

AI Technical Summary

Technical Problem

The existing vehicle warning methods cannot meet the increasingly complex driving conditions of driverless cars, resulting in the inability to effectively prompt the vehicles behind.

Method used

By obtaining the road parameter data within the current position of the vehicle and the preset road length range, including the road centerline coordinates and road curvature, the projection data of the target lamp source is determined to make the road length covered by its projection maximum, and the target lamp source is controlled for light projection based on the projection data.

Benefits of technology

When a vehicle fails, light projection is used to remind the vehicle coming from behind in a timely and effective manner, which improves the driving safety of the rear and reduces the probability of a second traffic accident.

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Abstract

The embodiment of the present invention discloses a vehicle warning method and device, the method comprising: obtaining the current posture of the vehicle and parameter data of a road within a preset road length range, the parameters comprising the coordinates of the road centerline and the road curvature, the posture comprising the vehicle position and the angle between the vehicle and the road centerline; determining the projection data of the target light source according to the posture and the parameter data, the road length corresponding to the projection data conforming to the maximum projection length principle, the projection data comprising the projection angle data of the target light source and a preset warning distance, the preset warning distance being less than or equal to the preset road length; controlling the target light source to perform light projection according to the projection data. The present application achieves the technical effect of being able to timely project warning signs based on the surrounding environment information to alert vehicles coming from behind when a vehicle stops due to a malfunction on a complex road condition.
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