汽车AFS头灯随动转向规律研究

摘要

The corner characteristic during driving at night is one of the critical characteristics of thevehicle Adaptive Front-lighting System (AFS).The basic principle of AFS is introduced,and the result ofthe current study on headlamp follow-up steering law at home and abroad is analyzed as well.On the basisof that,two new curve models for corner characteristic are put forward.then a mathematical model to evalu-ate the performance of the corner characteristic curve is establishedAn addition the follow-up steering effectof headlights combining specific vehicle typeis analyzed and tested in matlab,a result after analyzing andcalculating is obtained,which result demonstrates that the corner based on corner characteristic of the head-light is appropriate, and the curved corner feature is further proved to be superior to linear corner feature.%车辆夜间转弯时的转角特性是汽车随动转向前照灯系统(AFS)的关键特性之一.介绍了AFS系统的基本原理,分析了当前国内外对汽车AFS头灯随动转向规律的研究成果.在此基础上提出了两种新的转角特性曲线模型,同时建立了评价该特性曲线性能的数学模型,并结合具体车型对前照灯的随动转向效果在matlab软件中进行了分析验证,得到了分析计算结果.该结果数据说明设计的转角特性所确定的头灯转角是合适的,也进一步证明了曲线型转角特性的性能优于直线型转角特性.