汽车灯具电磁兼容试验分析研究

Study on Electromagnetic Compatibility Tests of Automotive Lighting

汽车中的电子部件逐渐增多,电子部件之间的电磁干扰问题受到普遍关注,国内外各大整车厂纷纷制定了整车及零部件的电磁兼容标准。随着LED成为车灯的光源,车灯的功能变得越来越丰富,电子驱动及控制电路也越来越复杂。本文在汽车零部件电磁兼容试验标准的基础上细化了汽车灯具电磁兼容试验标准,包含各类灯具的重要等级、功能判断方法以及针对不同类型的驱动所需进行的试验项目。

There are more and more electronic components in an automobile. The electromagnetic interference between the electronic components has attracted widespread attention. The auto makers have formulated the electromagnetic compatibility standards for the whole auto as well as components and parts. Since the LED becomes the light source of the automotive lightings,the function of the lightings are increasingly abundant. And also,the electronic drivers and control circuits are more and more complex. On the basis of the test standard of EMC for automotive components,this paper analyzes and studies the EMC test of automotive lighting,including the importance levels of the lights,function judgment method,and the required test items for different types of drivers.