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Molex Introduces Accelerometer-Based Road Noise Cancelling Sensor

By CIOReview | Tuesday, February 16, 2021

Molex launched the accelerometer-based Road Noise Cancelling (RNC) sensor for reducing excessive noise on the road.

FREMONT, CA: Molex, the top global supplier of communication and electronics solutions, launches the accelerometer-based Road Noise Cancelling (RNC) sensor. It is the first device in a new family of automotive Active Noise Cancellation (ANC) sensors. In reducing excessive road, wind, and HVAC car noise, these sensors can play a vital role while reducing low-frequency sounds that increase fatigue for drivers.

The electronics sector developments have empowered ANC technology, associated with advanced headphones, to change how car manufacturers handle road-based noises. Rather than installing costly and strong sound-absorbing materials to protect car interiors from unnecessary road-noise, ANC sensors are created to be implemented on a car chassis for more precise and reliable performance. However, systems placed on wheel wells and car frames must be designed to withstand the most challenging conditions.

“As the transition to electrified vehicles intensifies, it will become critical to reduce road noise, which today is masked by internal combustion engines,” said Carrieanne Piccard, VP and General Manager, Transportation Solutions Business Unit, Molex. “Our long history in the automotive industry uniquely positions Molex to develop powerful, durable sensor technology that captures and cancels road noises while enabling safe and enjoyable driving experiences. ”

Recently Molexs commissioned, The Future of Automotive Report that nine out of ten new cars will be hybrid or fully electric in 2030. In fact, among the most significant advances, respondents ranked electrification, connectivity, and sensor technology. They also mentioned the requirement for electronics and software to work as an obstacle to innovation during extreme scenarios.

The use of its RNC sensor with Silentiums Active Acoustics software has also been tested and validated by Molex. It can eliminate up to 90 percent of unnecessary noises across a broadband frequency (from 20Hz to 1kHz) to enhance the drivers and occupants' comfort, security, and well-being. To avoid highway hypnosis and driver fatigue, removing constant humming or droning noises coming from roads and tires is essential.