A Peek into the Technology Keeping EV Cabins Quiet
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Posted On: 01/26/2021 2:50:27 AM
A Peek into the Technology Keeping EV Cabins Quiet
After experiencing years of noisy cabins courtesy of internal combustion engine vehicles, most drivers who go green are often surprised by how quiet the cabins of electric vehicles (“EVs”) are. EVs have eliminated not just carbon emissions but sound pollution as well. Conventional vehicles are powered by a combustion engine, which can be quite loud, but electric vehicles rely on a much quieter electric motor for propulsion.
Unfortunately, without a loud combustion engine drowning everything out, ambient road noise is much more obvious inside the cabin. To eliminated this noise, EV makers have been using technology similar to what makes noise-canceling headphones so effective. Israel-based tech innovation company Silentium has created a special acoustic technology dubbed the Active Road Noise Cancellation (“ARNC”) software that can successfully keep ambient road noise out of the cabin.
After being selected by South Korean-based global automotive supplier Hyundai Mobis as its preferred noise-canceling technology supplier, Silentium is looking to roll out its personal in-car sound environments globally. Although ARNC technology shares some similarities with the technology in noise-canceling headphones, it is more advanced to deal with the much larger volumes of air in car cabins.
So how does it work?
Six accelerometers are strategically placed on the vehicle’s chassis to continually monitor unwanted noise from the road. Once the accelerometers detect noise, they dispatch a signal to a control unit onboard the vehicle. Equipped with Silentium’s noise-canceling software, the on-board control unit then emits an equal anti-noise signal using the speaker system of the vehicle. The waves from the ambient noise and the ANRC’s anti-noise signal hit the ears of the vehicle’s occupants simultaneously and neutralize each other, hence the silent cabin.
Silentium’s ANRC technology is proven to work across quite a wide spectrum of frequencies, from 20Hz up to 1kHz. The company’s partnership has allowed it to work with several automotive suppliers as well as some global original equipment manufacturers (“OEMs”). At the moment, three production models on the market are equipped with the noise-canceling technology.
Jaguar Land Rover was the first automaker to announce that it had integrated Silentium’s ARNC software in three of its upcoming models back in October 2020. This came after several years of development. The noise-canceling technology has been integrated into the Jaguar F-PACE, Jaguar XF and Range Rover Velar. Silentium and Hyundai are now working on a global vehicle production program for a still-unnamed brand.
Speaking of superior technologies, Net Element (NASDAQ: NETE) launched a blockchain-based system intended to avail safe platforms for payment processing. The company is also in the process of completing a merger with a California-based electric vehicle maker called Mullen Technologies Inc.
NOTE TO INVESTORS: The latest news and updates relating to Net Element (NASDAQ: NETE) are available in the company’s newsroom at http://ibn.fm/NETE
Please see full terms of use and disclaimers on the Green Car Stocks website applicable to all content provided by GCS, wherever published or re-published: https://www.GreenCarStocks.com/Disclaimer
After experiencing years of noisy cabins courtesy of internal combustion engine vehicles, most drivers who go green are often surprised by how quiet the cabins of electric vehicles (“EVs”) are. EVs have eliminated not just carbon emissions but sound pollution as well. Conventional vehicles are powered by a combustion engine, which can be quite loud, but electric vehicles rely on a much quieter electric motor for propulsion.
Unfortunately, without a loud combustion engine drowning everything out, ambient road noise is much more obvious inside the cabin. To eliminated this noise, EV makers have been using technology similar to what makes noise-canceling headphones so effective. Israel-based tech innovation company Silentium has created a special acoustic technology dubbed the Active Road Noise Cancellation (“ARNC”) software that can successfully keep ambient road noise out of the cabin.
After being selected by South Korean-based global automotive supplier Hyundai Mobis as its preferred noise-canceling technology supplier, Silentium is looking to roll out its personal in-car sound environments globally. Although ARNC technology shares some similarities with the technology in noise-canceling headphones, it is more advanced to deal with the much larger volumes of air in car cabins.
So how does it work?
Six accelerometers are strategically placed on the vehicle’s chassis to continually monitor unwanted noise from the road. Once the accelerometers detect noise, they dispatch a signal to a control unit onboard the vehicle. Equipped with Silentium’s noise-canceling software, the on-board control unit then emits an equal anti-noise signal using the speaker system of the vehicle. The waves from the ambient noise and the ANRC’s anti-noise signal hit the ears of the vehicle’s occupants simultaneously and neutralize each other, hence the silent cabin.
Silentium’s ANRC technology is proven to work across quite a wide spectrum of frequencies, from 20Hz up to 1kHz. The company’s partnership has allowed it to work with several automotive suppliers as well as some global original equipment manufacturers (“OEMs”). At the moment, three production models on the market are equipped with the noise-canceling technology.
Jaguar Land Rover was the first automaker to announce that it had integrated Silentium’s ARNC software in three of its upcoming models back in October 2020. This came after several years of development. The noise-canceling technology has been integrated into the Jaguar F-PACE, Jaguar XF and Range Rover Velar. Silentium and Hyundai are now working on a global vehicle production program for a still-unnamed brand.
Speaking of superior technologies, Net Element (NASDAQ: NETE) launched a blockchain-based system intended to avail safe platforms for payment processing. The company is also in the process of completing a merger with a California-based electric vehicle maker called Mullen Technologies Inc.
NOTE TO INVESTORS: The latest news and updates relating to Net Element (NASDAQ: NETE) are available in the company’s newsroom at http://ibn.fm/NETE
Please see full terms of use and disclaimers on the Green Car Stocks website applicable to all content provided by GCS, wherever published or re-published: https://www.GreenCarStocks.com/Disclaimer
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