ZF Active Noise Reduction: This Is How the Chassis of the Future Sounds

“Active Noise Reduction” uses ZF’s Smart Chassis Sensor with an integrated acceleration sensor to precisely measure vibrations transmitted from the tires to the vehicle via the chassis. The vibration data is analyzed using a specially developed algorithm that recognizes the characteristic noise patterns of tire cavity noise (typically around 200 hertz). The software then generates a counter-signal provided by ZF’s cubiX software via the valves of semi-active dampers (CDC). The function uses micro-movements of the damper to specifically reduce the noise interference without impairing the actual damper function.