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Hyundai will give the car a system of active suppression of road noise

Hyundai наделит автомобили системой активного подавления дорожных шумов

Soon will begin installing advanced system of noise reduction on the new model Genesis.

Hyundai Motor Group, started the implementation of the new system, designed to improve the level of acoustic comfort in the passenger compartment.

The complex is called RANC, or Road Noise Active Noise Control. It is argued that the world’s first automotive system of active suppression of road noise.

On the basis of the APPROACH self — active noise cancellation (ANC) Hyundai, which eliminates unwanted sounds by generating waves in opposite phase with the incoming noise. Hardware part of the complex includes microphones and a digital signal processor (DSP), software — special algorithms to remove the signal.

The system may analyze the noises of various types in real time. Using the accelerometer RANC calculates the vibration of the car from the road, and control computer assesses road noise. Due to the increased speed of the calculations and signal transmission, the DSP chip takes only 2 milliseconds to the analysis of noise and creating inverse sound waves.

It is important to note that the complex conducts the necessary calculations to suppress the noise in the driver’s area, front and rear passengers separately. Tests on different road surfaces, vehicle speeds and zones showed that RANC can reduce cabin noise by 3 dB.

The system will help to reduce the unsprung weight of the vehicle by reducing the number of acoustic components and shock absorbers.

A system APPROACH is particularly relevant in light of the development of a fully electric and hydrogen power platforms. Such plants practically do not generate sounds, and so the main task in terms of improving acoustic comfort is the fight against road and wind noise. System APPROACH significantly reduces road noise and creates a relaxed atmosphere in the salon.

Soon will begin installing advanced system of noise reduction on the new model Genesis.

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