A pre-warning method for vehicle rollover based on enhanced digital map
A digital map and enhanced technology, applied to vehicle components, external condition input parameters, control devices, etc., can solve the problem that the rollover warning algorithm cannot meet the pre-warning of vehicle rollover, and achieve the effect of convenient implementation
Active Publication Date: 2021-06-11
SOUTHEAST UNIV
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[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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[0073] The technical solutions provided by the present invention will be described in detail below in conjunction with specific examples. It should be understood that the following specific embodiments are only for illustration and not intended to limit the scope of the present invention.
[0074] A pre-warning method for vehicle rollover based on an enhanced digital map. First, an enhanced digital map with road attribute information is made, and then the position of the vehicle in the digital map and the road ahead that the vehicle is about to enter are determined, and then based on the current vehicle speed Analyze the lateral force of the vehicle on the road ahead, and finally predict whether there is a risk of rollover when the vehicle is driving at the current speed on the road ahead based on the lateral force analysis and give an early warning. The enhanced digital map produced by the invention does not require a large amount of manual surveying and mapping work, is easy ...
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The present invention proposes a vehicle rollover early warning method based on an enhanced digital map. The method first creates an enhanced digital map with road attribute information, and then determines the position of the vehicle in the digital map and the front where the vehicle is about to drive. Road section, then analyze the lateral force of the vehicle on the road ahead based on the current speed, and finally predict whether there is a risk of rollover when the vehicle is driving on the road ahead at the current speed based on the lateral force analysis and give an early warning. The enhanced digital map produced by the present invention does not require a large amount of manual surveying and mapping work, is easy to implement, and includes road curvature radius, lateral slope angle, and longitudinal slope angle information; the rollover pre-warning method proposed by the present invention is based on the current vehicle speed to estimate the vehicle Whether there is a risk of rollover when driving on the road ahead, it can remind the driver to drive safely before the vehicle is in danger of rollover, and give the distance from the vehicle to the rollover point in front and the safe driving speed, 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...
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IPC IPC(8): B60Q9/00B60W50/14B60W30/00
CPCB60Q9/00B60W30/00B60W50/14B60W2050/143B60W2520/10B60W2552/05B60W2552/15B60W2552/30
Inventor 李旭韦坤徐启敏
Owner SOUTHEAST UNIV