A Review on the Performance of a Vibration Absorber in an Active Suspension System

Abstract

Active suspension system is to isolate a vehicle body from road irregularities to maximize passenger ride comfort and retain continuous road wheel contact in order to provide road holding with the help of roll and pitch as well as torsion modes. In advance active suspension concepts, damped vibration absorbers, may be fitted to the axles to control wheel hop oscillations. The optimal turning and damping ratio for the vibration absorber to minimize wheel bounce on a random road are computed for a linear two degree-of freedom system as function of the relative tyre damping rate and mass ratio. The adaptive suspension controllers provide superior passengers comfort over the whole range of road condition. In this connection an attempt is made to explain in detail about suspension system, springs, vibrations and results obtained of different researchers in their experimental investigation.