Automotive Electrification: Battery-Powered, Connected Cars Require Innovative NVH Solutions

There are two undeniable trends that can be seen in nearly any industry: environmental consciousness and global connectivity. These themes drive many initiatives and influence new product development. A great example of this trend is the automotive market. Electric vehicles are becoming more commonplace every year, and, their electronics are becoming increasingly sophisticated and abundant. With these innovations comes a new challenge; how to protect these components from the unique noise, vibration, and harshness (NVH) issues inherent in an automobile.

One NVH issue, located in the battery packs, represents a challenge to one of the most critical components of an electric vehicle system. These battery packs contain many cells which expand and contract with changes in temperature, requiring a conforming material to maintain separation and prevent damage. ISOLOSS™ LS and CONFOR™ EG foams provide a good solution with performance characteristics such as a low, flat compressive force deflection providing uniform pushback force up to 70% compression and high damping characteristics to reduce the negative effects of vibration and impacts.

Turning attention to the interior, it becomes clear that automobile manufacturers must concern themselves with NVH issues that were previously exclusive to the electronics industry, such as display protection, gasketing, and haptics. In these applications, working with minimal gap space means materials must perform at very slim profiles, often down to fractions of a millimeter.  CONFOR™ CFTF was developed specifically for the purpose of providing display protection while maintaining a profile as thin as 0.06mm. Meanwhile, highly damped ISODAMP™, ISOLOSS™ SL and VersaDamp™ elastomers provide isolation mounts for the infotainment and other electronics.

To learn more about noise, vibration, and harshness solutions for automotive electrification applications contact solutions@earsc.com .

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About Aearo Technologies LLC

For more than 40 years, Aearo Technologies LLC has led the way in energy-control technology. We've pioneered new treatment techniques and developed proprietary, high performance materials that control unwanted energy.