摘要
针对提高汽车前照灯的智能化程度的目的,分析得出了前照灯上下左右摆动的数学模型,并针对不同的行车环境研究设计了一种自适应前照灯系统,具体说明了该系统的运行原理和总体实现方案。该系统微控制芯片选用P87C591,通过内置的控制算法来计算由一系列传感器传输过来的车速、方向盘转角和光强、雨量信息等。通过设计的硬件电路实现对步进电机的驱动,调整汽车前照灯灯头水平垂直方向上的角度,最终给出了汽车AFS系统的控制研究设计。
Aiming at the purpose of improving the intelligent level of adaptive front⁃lighting system,this paper analyzes and obtains the mathematical model of headlamp swing up,down,left and right,and designs an adaptive frontlighting system in different driving environment.The operation principle and overall implementation scheme of the system are explained in detail.P87C591 is selected as the micro control chip of the system.The speed,steering wheel angle,light intensity and rainfall information transmitted by a series of sensors are calculated by the built⁃in control algorithm.Through the design of the hardware circuit,it realizes the operation of stepping motor,which can adjust the angle of the headlamp head in the horizontal and vertical direction,finally,the control design of AFS system is given.
作者
朱丹
朱熀秋
ZHU Dan;ZHU Huangqiu(School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,China)
出处
《电子设计工程》
2020年第21期125-129,135,共6页
Electronic Design Engineering
