Development of a Mass-producible ANC System for Road Noise
- 70 Downloads
During the Olympic Winter Games 2018 in Pyeongchang the electric car Hyundai Nexo was used. Due to its fuel cell drive it is very quiet, only road noise comes to the driver’s ear. To turn this off as well, Hyundai developed a broadband active noise control system that is mass-producible and with which a virtual quiet zone around the four headrests is created via counter-phase noise.
First Application during Olympia
The electrification of a car powertrain eliminates combustion noise which even lead researchers to design an additional synthetic sound generator for pedestrians so they can hear an approaching car. Side effects of quietness have become prevalent nowadays, and occupants now perceive noise which was previously masked by combustion noise, for example road-induced noise. This noise inside the cabin of electric vehicles is more audible, particularly under low-speed driving conditions.
During the Pyeongchang Olympic Winter Games in February 2018, Hyundai Motor Company introduced...
- Duan, J.: Active Control of Vehicle Powertrain and Road Noise. Cincinnati, University of Cincinnati, USA, Dissertation, 2011, pp. 122–146Google Scholar
- Roure, A.; Albarrazin, A.: The remote microphone technique for active noise control. Conference report: Proceedings of Active 1999, Florida, USA, 2000, pp. 1233–1244Google Scholar
- Automotive Electronics Council Component Technical Committee: AEC — Q100 — Rev-H: Failure Mechanism Based Stress Test Qualification For Integrated Circuits. September 11, 2014Google Scholar