汽车自适应控制的LED照明系统设计

摘要汽车作为人们现在必不可少的交通工具，其安全性已经得到了足够的重视，而前照灯作为汽车最主要的照明手段，在汽车安全性方面具有举足轻重的地位。本文研究的是基于自适应控制的LED汽车照明系统设计，主要研究的是汽车前照灯中大功率LED远光灯、8个小功率的LED近光灯以及3个小功率LED组成的转向灯的软硬件设计，其中包括这三种灯的驱动电路设计，LED自适应调光设计，远近光自动切换电路设计，延时关灯电路设计，使得汽车在行驶时更加安全，也更加智能化，人性化。而LED光源的选择，其低功耗也使得汽车变得更加节能环保，这也会是汽车照明发展的一个主要方向。60948

毕业论文关键词汽车照明 LED 自适应技术电路设计

毕业设计说明书（论文）外文摘要

Title The design of Adaptive control with the automotive LED lighting system

Abstract Car, as an essential means of transportation, its safety has been paid enough attention to. Headlight is the most important part of illumination methods. It has a pivotal position in the automotive safety. This paper is researching with the design of the LED automotive lighting system based on adaptive control, including the hardware and software design of high-power LED high beam, 8 small-power LED low beam and 3 small-power LED turn signals. It is also including the three lamp driver circuit design, LED adaptive dimming design, the automatic switching circuit design of high beam and low beam and delay turning off the headlamp, which makes the drive more secure, more intelligent and humane. Because of the low power consumption, the choice of LED makes cars more energy saving and green. This will also be the main direction of the automotive lighting development.

Keywords Automotive Lighting LED Adaptive Technology

1 引言 1

1.1 汽车照明系统的现状 1

1.2 汽车照明中存在的问题 2

2 汽车照明的技术要求及标准 4

2.1 前照灯的照明技术要求及标准 4

2.2 汽车照明的电气要求 6

2.3 汽车照明的其他要求 7

3 基于自适应控制的LED照明系统总体方案 8

3.1 汽车照明的系统及结构研究 8

3.2 自适应控制原理 10

3.3 自适应控制LED汽车前照灯系统方案 12

4 汽车照明的光电系统及软件设计 13

4.1 汽车LED的选择及光学系统设计 13

4.1.1 LED灯源选择 13

4.1.2 前照灯光学系统设计 14

4.2 LED的基板设计 17

4.3 LED的驱动电路设计 18

4.4 LED的散热设计 20

4.5 汽车LED照明的总体方案和电路图（硬软件设计） 23

4.5.1 方案中LED调光方式选择 23

4.5.2 方案中光强传感器选择 23

4.5.3 方案中单片机的选择 24

4.5.4 单片机ATmega16与光强传感器TSL2561的连接汽车自适应控制的LED照明系统设计:http://www.751com.cn/jixie/lunwen_66527.html