LANXESS为驾驶员辅助系统中的雷达传感器提供材料解决方案

现代汽车现在配备了许多高级驾驶员辅助系统（ADA）和相应的传感器，以不断增加的数字。ADA提高了所有道路使用者的安全性，并为高度和全自动驾驶铺平了道路。根据德国统计平台Statista的数据，ADAS市场将在2023年达到320亿美元（约280亿欧元）。预计年增长率为17％。

“ADAS radar sensors and their housings in particular are an attractive field of application for our polybutylene terephthalate (PBT) and polyamide compounds. We have a wide product range that meets the desired technical requirements for this area. These include good radar transparency and dimensional stability, good laser welding behavior and also excellent mechanical properties for fastening the sensors in the vehicle safely and durably,” explains Dr. Christopher Hoefs, ADAS expert at the High Performance Materials (HPM) business unit at LANXESS.

较高雷达频率的良好信号传输

ADAS传感器监视车辆周围环境的整个环境。它们的操作基于电磁波，例如雷达或激光束（LIDAR），超声波或使用成像技术，该技术对传感器壳体选择的材料具有显着轴承。例如，对于雷达传感器壳体的前部（也称为radome），必须渗透到雷达梁上。为了最大程度地减少辐射损失，辐射小体的材料必须具有低介电常数（DK）和损耗因子（DF）。为此，LANXESS对其范围内的许多化合物进行了广泛的测试，包括测量单向衰减以及特定的传输和反射作为频率和材料厚度的函数。Hoefs说：“我们有多种具有DK和DF值的PBT类型，使其适合于77至81 Gigahertz的ADAS雷达频率使用。”

同时水解稳定且透明的激光器

Depending on where the sensor is installed, the plastic for the housing must be extremely resistant to hydrolytic degradation. With the Pocan XHR series, LANXESS has PBT compounds at its disposal that achieve Class 4 or Class 5 – the top ratings – in the stringent SAE/USCAR2 Rev. 6 long-term hydrolysis tests of the US Society of Automotive Engineers (SAE). At the same time, they are highly resistant to hot air and exhibit high elongation at break values.

The compounds from the Pocan HR series are suitable for less demanding hydrolysis stability requirements. These include the fiberglass-reinforced Pocan B3233HRLT compound, which is both transparent to lasers and highly resistant in hot and humid environments, which are usually mutually exclusive properties. “This material is very well suited to joining housing components of radar or camera sensors cost-effectively using laser transmission welding, for example,” says Hoefs.

HiAnt – customer service that pays off

LANXESS为制造商提供了广泛的仓线服务的ADAS技术，从共同的概念开发组件和材料优化的联合概念开发到计算机辅助工程（CAE）的尖端方法，以精确预测组件的机械和热性能。“我们还为合作伙伴提供物质数据。例如，除了化合物的各自的DK和DF值外，雷达传感器的开发人员还收到有关雷达频率和测试身体厚度的特定传输与反射之间关系的数据。” HOEFS解释说。

You can find more detailed information about products for ADAS technology from LANXESS at//www.kiwlau.com/en/products-and-solutions/focus-topics/lanxess-e-mobility/advanced-driver-assistance-systems。

All news releases from LANXESS regarding K 2022 are available at//www.kiwlau.com/k2022/press。