车辆自主紧急制动系统仿真

Simulation of Vehicle Autonomous Emergency Braking System

为了加强汽车运行过程中的主动防碰撞性能,提高驾驶安全性,设计了自主紧急制动系统(AEB).分别建立了横向与纵向安全距离模型,可实时根据行车状况自动识别碰撞危险.识别危险后,为了在汽车紧急制动过程中获取更好的制动效果,使得制动距离尽量小,同时避免车轮抱死引发安全问题,加入基于PID的ABS制动控制系统.在MATLAB/Simulink中建立系统模型进行仿真,仿真结果显示,紧急工况下实现了车辆制动系统的自动触发与调节功能.

In order to enhance the active anti-collision performance and improve the safety of vehicle driving,an autonomous emergency braking system(AEB)is designed.The lateral and vertical safety distance models are established respectively,which can automatically identify the collision hazard in real time according to the driving conditions.After identifying the danger,in order to obtain better braking effect in the process of emergency braking,make the braking distance as small as possible,and avoid the safety problems caused by wheel lock,the ABS braking system based on PID control is added.The system model is built in MATLAB/Simulink for simulation,and the simulation results show that the automatic triggering and adjusting function of vehicle braking system are realized under emergency conditions.