New software to help cars go quietly even on bumpy roads
Researchers have developed a new software that promises a quieter ride by minimising sudden and unexpected road noises when a car hits potholes or other roadway obstacles.
Guohua Sun from the University of Cincinnati has developed an adaptive, active algorithm that would enable the use of a rapid-response sound wave, which would counter and significantly "erase" these noises.
The revamped Active noise-control (ANC) systems capture the noise being generated by a car and then produce an opposite-phase sound wave, the New Scientist reported.
When this alternatively peaking sound wave encounters the original one, the overlap results into a sound, which is significantly diminished.
Until now, in a numerical model, this system has outperformed standard ANC, which works for the regular thrum of tyre on tarmac.
Existing ANC systems rely on the assumption that all noise from the contact between the car and road will follow a pattern.
This works for the regular thrum of tyre on tarmac, but when a car hits a bump on the road, the conventional algorithm breaks down, and the noise gets through to rattle the driver's ears.
Now, Sun claims that he expects to see a real decrease in sound of at least 50 percent when the system will be put up on trial in Ford cars next year.