AFS汽车自适应前照灯随动转向控制系统毕业设计.pdf

摘 要 传统的汽车照明系统主要由前照灯系统，信号照明系统，车内照明系统三大部分 组成。随着科技的进步，传统的照明系统也不断的发展，但实际的使用中，传统的前 照灯系统依然存在着诸多问题，在面对复杂的路况，特别汽车在夜间弯道行驶时，存 在着巨大的安全隐患。因此，如何使传统汽车照明智能化，驾车更加安全就成为一个 十分紧迫而又有重大现实意义的课题。 针对传统的汽车照明灯夜间行驶在弯道时无法调节照明角度、在弯道内侧易出现 盲区等情况，提出了一种前照灯弯道自适应照明控制系统，以提高夜间行车安全性。 该系统是一种以单片机为核心设计的汽车自适应前照灯左右转向计算机控制系统，当 单片机接收到车速信号和方向盘转角信号后，判断车灯是否应该转动，若需要转动， 则查表运算，把处理后的信息传给驱动执行单元，控制执行机构做出相应动作。硬件 主要由车速信号采集部分、转向信号采集部分、中央控制单元、驱动执行单元四部分 组成，分别负责车速信号采集；方向盘转角信号采集；运算判断；控制车灯转角。软 件部分，设计了车速信号采集模块，方向盘转角采集判断模块，步进电机控制模块， 主程序模块，实现了一个可根据车速和方向盘转角信号左右转向的控制系统。 关键词：自适应照明；单片机；车速；方向盘转角；盲区。 ABSTRACT Traditional automotive headlamp lighting system consists of system, signal lighting, interior lighting system has three major components. As technology advances, the traditional lighting system also continues to develop, but the actual use, the traditional headlamp system, many problems still exist, in the face of a complex road, especially when the car driving at night turn, there is a huge security risk. Therefore, how to make the traditional automotive lighting intelligent, more secure driving has become a very urgent and have great practical significance of the issue. Traditional automotive lighting for night driving in the corners can not be adjusted when the lighting angle, the inside of the bend and so prone to blind spots, a lighting control system, adaptive headlamps turn in order to enhance night driving safety. The system is a kind of auto adaptive design with single-chip microcomputer as the core of the headlight turned around the computer control system, when the MCU receives signal of vehicle speed and steering angle signal lights, judge should turn, if the need to rotate, then the