Vehicle rollover advance warning method based on enhanced digital map

Abstract

The invention provides a vehicle rollover advance warning method based on an enhanced digital map. The vehicle rollover advance warning method includes the steps that firstly, the enhanced digital mapwith road attribute information is made, then the position of a vehicle in the digital map and a road section in front that the vehicle is about to enter are determined, then based on a current vehicle speed, transverse force of the vehicle on the road section in front is analyzed, and finally, based on transverse force analysis, whether the rollover risk exists or not is estimated when the vehicle travels at the current vehicle speed on the road section in front, and warning is carried out. According to the made enhanced digital map, a great deal of manual surveying and mapping work is noteneeded, implement is convenient, and meanwhile, information of the road curvature radius, transverse slope angle and longitudinal slope angle is contained. According to the vehicle rollover advance warning method, based on the current vehicle speed, whether the rollover risk exists or not is estimated when the vehicle travels at the current vehicle speed on a road in front, a driver can be reminded to drive safely before the vehicle has the rollover risk, and the distance from a front rollover point and a safe driving speed are given so as to achieve the purpose of early warning of rollover.

Description

technical field [0001] The invention relates to a vehicle rollover early warning method, in particular to a vehicle rollover pre-warning method based on an enhanced digital map, which belongs to the technical field of automobile safety. Background technique [0002] In recent years, with the continuous improvement of the penetration rate of various types of vehicles, the issue of vehicle safety has attracted more and more public attention. According to the relevant statistical data of the U.S. Highway Traffic Safety Administration, the incidence and degree of damage of vehicle rollover accidents rank second in vehicle accidents, especially for heavy vehicles. The higher the frequency, the greater the loss. Therefore, the research on the method of vehicle rollover warning has great social significance and practical value for road traffic safety. [0003] At present, there are many types of vehicle rollover warning algorithms, most of which are based on vehicle body informat...

AI Technical Summary

Problems solved by technology

[0004] In view of the fact that the existing rollover early warning algorithm cannot meet the needs of vehicle rollover early warning in advance, the present invention proposes a vehicle early warning method based on enhanced digital maps

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