制动工况下自适应前照灯系统调光的新方法  

New Method of Beam Leveling for Adaptive Front-lighting System Under Braking

作　　者：邓亮[1] 陈抱雪[1] 张建彬[1] 隋国荣[1] 顾东超 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]上海小糸车灯公司开发部,上海201821

出　　处：《汽车工程》2010年第10期914-918,共5页Automotive Engineering

摘　　要：计算了因路面不平度和制动引发的车身俯仰角度变化,提出使用LMS自适应滤波器处理车身高度传感器信号,结合PID控制步进电机,动态实现制动时调整前照灯光轴的方法。同时采用Simulink仿真和实车测试验证该方法的有效性,扩展了现有自适应前照灯系统的调光功能。The variations in pitch angle of car body caused by road roughness and vehicle braking are calculated.A new method is proposed of using LMS adaptive filter to process body height sensors signals,controlling stepper motor with PID controller for dynamically realizing headlamp leveling.In addition,Simulink simulation and real vehicle testing are conducted to verify the effectiveness of the method,which expands the leveling function of current adaptive front-lighting system（AFS）.

关 键 词：自适应前照灯系统 路面不平度 车身俯仰角 LMS自适应滤波器 光轴自动调整 

分 类 号：U463.65[机械工程—车辆工程]