Modeling of Electromagnetic Damper for Automobile Suspension

Abstract

In this paper, the modeling of the electromagnetic damper (EMD) for automobile suspension is presented and the validation of the model is demostrated by comparing the numerical results with the experimental results obtained using shaker tests. EMD is used as an active suspension and controlled to have output force calculated from velocities of sprung and unsprung masses. The formulation of EMD system for active suspensions is first developed, and the validation of the EMD model is demostrated by experiments of the EMD for automobile suspensions. The validity of the formulation of the EMD developed in this investigation is shown for the frequency responses as well as energy balance for its active use.