RNC controller uses reference signals received from accelerometers placed throughout the suspension and chassis.
Microphones in the car roof further enhances system performance.
Lightweight materials, in turn, enable OEMs to lower fuel consumption and CO2 emissions.
The EOC controller uses the engine RPM signal as a reference to generate a sound wave that is opposite in phase to the engine vibration-induced noise.
Error microphones mounted in the roof of the car provide feedback on the amplitude and phase to refine noise-cancelling effects.
Provides a means of predicting noise levels more accurately at occupant ear locations using existing error microphones.
Provides improvements in depth and frequency range of cancellation.
Predictions enable opportunities for cost savings through reduction of hardware.
Ensures that only unwanted engine or road noise is cancelled, while preserving music signals in a similar audio range.
