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<div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">3分钟学习自适应远光的实现方式 </h1> <p class="xg1"> 时间：2021-11-26 10:12<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(230)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=9374&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a>来自: 网络平台</p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>ADB概念自2005年被首次提出，伴随LED技术得以迅猛发展，也被称为GFHB或VCOB，其含义均为自适应远光或无眩目远光。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div> ADB概念自2005年被首次提出，伴随LED技术得以迅猛发展，也被称为GFHB或VCOB，其含义均为自适应远光或无眩目远光。</div><div><br></div><div> ADB作为一种智能防眩目远光系统，通过摄像头、雷达等感知模块识别前方道路上存在的其它车辆或者行人，经中央控制处理系统调控相应的LED光源亮度变化，甚至熄灭部分光源，实现对前方车辆驾驶员及道路行人的防眩目保护，也可以常亮或闪烁部分光源起到提醒、警示作用。</div><div><br></div><div> ADB系统既保证了夜间行驶过程的最佳道路<a href="http://light.oecr.com" target="_blank" class="relatedlink">照明</a>效果，又降低了远光带来的危害，提升驾驶安全。目前自适应远光实现方式主要有以下几种：</div><div><br></div><div> （1）<a href="http://machine.oecr.com" target="_blank" class="relatedlink">机械</a>式ADB：</div><div><br></div><div> 在AFS技术的基础上发展演变而来，其主要针对使用传统光源的大灯，如卤素灯或HID。</div><div><br></div><div> 机械式ADB通过对传统大灯原有结构的改造，更改挡板为变光轴，利用变光轴旋转时呈现的不同形状来对远光进行遮挡、调节，以此实现自适应远光的功能。</div><div><br></div><div> 变光轴可以在灯体内旋转活动，不同的转动角度下会有特定的形状对光线进行不同程度的遮挡，自然而然形成了不同的光型效果，完成防眩目要求。</div><div><br></div><div> 这种方式下灯光变化较为缓慢，难以满足快速行车的需求。变光轴需要较高的机械精度设计，遮挡类型固定，遮蔽精度不高且只适用于单一目标。</div><div><br></div><div> （2）Matrix ADB：</div><div><br></div><div> 利用多颗LED进行矩阵排列与光照区域一一对应，通过控制LED亮暗来完成光型变化。这种方式依赖大量光源，LED光源数量越多，自适应远光系统的分辨率、精准度就越高。</div><div><br></div><div> 由于此种方式下的LED光源可以独立改变亮暗情况，所以从设计<a href="http://theory.oecr.com" target="_blank" class="relatedlink">理论</a>上来说能实现多种照明模式，特别符合ADB的要求。</div><div><br></div><div> 在<a href="http://opticaldesign.oecr.com" target="_blank" class="relatedlink">光学设计</a>过程中，需要将Matrix ADB中光源模组进行分割划区，形成不同的照射区域，通过控制系统的算法调节来实现每个区特定的照明效果，进而各个区照射光型叠加实现ADB功能。</div><div><br></div><div> 但多颗光源对光学系统设计提出了很高要求，过多的光源对系统的散热结构、控制算法策略都带来了巨大挑战。</div><div><br></div><div> （3）混合式ADB：</div><div><br></div><div> 该种方案融合前两种实现方式的特点，采用LED光源模组搭配电机等机械结构进行整体移动实现动态照明来完成AFS的功能，同时配套控制系统调控灯珠亮度达成ADB防眩目效果。</div><div><br></div><div> 此种方式可实现多目标、大范围的遮挡，动态效果好；但相比前两种成本很高、结构设计难度ZUI大。</div><div><br></div><div> 在ADB实现的三种方式中，机械式ADB一般采用传统光源，后两者则是利用LED作为实现光源，其光源排列方式有以下三种：矩阵排列、旋转排列及旋转排列外加导光板组合。</div><div><br></div><div><div 0px;"="" 255);"="" 255,="" rgb(255,="" simsun;="" yahei",="" microsoft="" style="overflow-wrap: normal; 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