Research On Automotive AEB Control Strategy System Based On V2P

The current situation of road traffic in China gradually presents its diversified characteristics.With the increase of car ownership and the number of road riders,the incidence of collision accidents between cars and two wheeled vehicles is very high.When there are obstacles blocking the sight of the car driver or the driver of two wheeled vehicles,there is a great probability that the two vehicles will collide.Intelligent vehicles can sense and locate two wheeled vehicles through on-board sensors such as lidar,millimeter wave radar and camera,and take corresponding collision avoidance measures.However,the detection accuracy may be affected by factors such as bad weather or obstruction,which may affect the correct decision-making of automatic emergency braking system(AEB).V2 X technology is a powerful supplement to the functions of on-board sensors,which can avoid missed or false detection caused by weather or viewing angle.This paper aims to study the two wheeled vehicle accident prevention technology combined with V2 P communication positioning and AEB control,and explore the feasibility of reducing the incidence of two wheeled vehicle accidents in China’s current road traffic environment.According to the actual situation of road traffic accidents in China,the types of AEB test scenarios are determined,and four types of typical AEB test scenarios are designed based on the existing vehicle two wheeled vehicle test standards in Euro NCAP,the relevant scene test standards of Euro NCAP AEB VRU version 2021 and the current situation of road traffic in China.The above four test scenarios are built by using the joint simulation platform of prescan and MATLAB / Simulink,and the AEB control strategy model based on TTC algorithm is established.A V2 P scheme combined with satellite positioning is proposed to realize the positioning and real-time position sharing of vehicle end and two wheeled vehicle end.Based on this V2 P scheme,in the four established simulation scenarios,according to the requirements of different test scenarios,the corresponding AEB control strategy is designed,and the actual collision avoidance test effect is obtained in each test scenario.The braking coordination time and braking pressure growth time are reproduced in the test scenario simulation,and the control logic is supplemented and improved according to the problems existing in the hierarchical braking scheme.Considering the braking safety and driver comfort,the optimized braking control scheme is selected from the collision avoidance statistical results of four test scenarios,including control logic and main control parameters.Finally,the optimized three AEB control strategy models are applied to four kinds of simulation scenarios to further evaluate the collision avoidance effect of AEB model.The research results show that the AEB control strategy model designed for vehicle-two wheeled vehicle accident in this paper has good collision avoidance effect.The control system can control the occurrence of vehicle collision avoidance accident under the test condition of line of sight occlusion,which provides a reference scheme for the research of active safety system of this kind of accident.This scheme can not only overcome the defect of insufficient line of sight of some traditional on-board sensors,At the same time,it meets the low delay of vehicle networking communication,which proves that the AEB system based on V2 P positioning communication scheme has a good market application prospect for the research of two wheeled vehicle accident avoidance,and can effectively reduce the occurrence of such accidents.