汽车金属漆对毫米波雷达的影响研究  

The Influence of Color Development on Millimeter Wave Radar

作　　者：田海洋 程晓雪 莫林睿 毕静 王宇 龙代勇 Tian Haiyang;Cheng Xiaoxue;Mo Linrui;Bi Jing;Wang Yu;Long Daiyong(Chongqing Seres New Energy Automobile Design Institute Co.,Ltd.,Chongqing 400030,China)

机构地区：[1]重庆赛力斯新能源汽车设计院有限公司,重庆400030

出　　处：《上海涂料》2024年第4期53-57,共5页Shanghai Coatings

摘　　要：随着毫米波雷达系统在汽车辅助驾驶领域的广泛应用,确保其长期高效稳定的运行对于安全驾驶至关重要。本研究针对保险杠影响毫米波雷达功率衰减问题进行了深入分析与整改,提出了一套新车型开发阶段的颜色开发策略。研究发现,铝粉、珠光粉等效应颜料的粒径大小和含量对雷达功率衰减有显著影响。为此,建议在颜色开发设计阶段,至少进行2~3轮的测试优化周期,确保毫米波雷达的性能不受影响。同时,对于使用铝粉作为效应颜色配方,应严格控制其粒径不超过27μm,质量比不超过4%,以减少对雷达性能的负面影响。此外,通过测量色漆涂层的介电常数,可以客观评估其对雷达功率衰减的影响,建议将此数值控制在20以内。在工程开发阶段,通过梯度测试锁定最佳基材板料厚度,这也是改善雷达功率衰减问题的有效方法。本研究不仅为汽车保险杠的颜色开发提供了科学指导,也为毫米波雷达的设计与应用提供了重要的参考指标。With the wide application of millimeter wave radar system in the field of automobile assisted driving,ensuring its long-term efficient and stable operation is very important for safe driving.In this paper,the influence of bumper on millimeter wave radar power attenuation was analyzed and rectified,and a set of color development strategies for new model development was proposed.The result showed that the particle size and content of aluminum powder,pearlpowder and other effect pigments have significant influence on radar power attenuation.Therefore,we recommend at least 2-3 rounds of test optimization cycles during the color development design phase in order to ensure that the performance of the millimeter wave radar will not be affected.At the same time,for the use of aluminum powder as the effect color formula,its particle size should be strictly controlled not to exceed 27μm,and the mass ratio should be less than 4%,in order to reduce the negative impact on radar performance.In addition,by measuring the dielectric constant of the color paint coating,the influence on radar power attenuation can be objectively evaluated,and it is recommended to control the value within 20.In the engineering development stage,it is also an effective method to lock the optimal substrate thickness through gradient testing to improve the radar power attenuation problem.This study not only provides scientific guidance for the color development of automobile bumper,but also provides an important reference index for the design and application of millimeter wave radar.

关 键 词：金属漆 毫米波雷达 效应颜料 介电常数 

分 类 号：TQ624[化学工程—精细化工]