基于露点差阈值法对车灯起雾风险的研究  

Study on the Risk of Fog for Auto Lamps Based on Temperature-dew Point Difference Threshold Value Method

作　　者：丁博岩 何渊 郑志军 吕浩 徐浩文 金立军 DING Boyan;HE Yuan;ZHENG Zhijun;LV Hao;XU Haowen;JIN Lijun(SAIC Volkswagen Automotive Co.,Ltd.,Shanghai 201800,China)

机构地区：[1]上汽大众汽车有限公司,上海201800

出　　处：《照明工程学报》2023年第5期47-50,共4页China Illuminating Engineering Journal

摘　　要：本文针对汽车灯具设计阶段传统的利用液膜厚度来模拟分析雾气风险的不足,提出了新的模拟方法:采用车灯外配内表面全露点差阈值法进行车灯起雾风险的分析和研究。该方法不仅可以对车灯外配起雾位置和起雾程度做准确判断,同时还能够定量分析潜在的起雾风险区域。通过对该模拟方法的结果与后期试验进行比对,得到一致的结果,为后续进一步研究车灯起雾风险提供参考。In view of the defect of the traditional fog analysis method of using film thickness to simulate and analyze the fog risk of auto lamps in the design process,the method of temperature-dew point difference threshold value is proposed to analyze and study the fog risk of lamps,which can not only accurately judge whether and where the fog is generated,but also quantify the potential risk areas of fog.In this paper the results of the simulation are also compared with the winter tests,and the outcome is consistent with the test results.

关 键 词：汽车灯具 雾气 露点 露点差阈值 

分 类 号：TM923[电气工程—电力电子与电力传动]