반능동 ER 현가장치를 갖는 전체차량의 성능해석 및 실차시험

This paper presents performance analysis and field test for ride comfortability of a vehicle with electrorheological(ER) damper. A dynamic model of the ER damper is formulated by the bond graph method incorporating eectric field-dependent Bingham properties of ER fluid obtained experimentally. Based on this model, the ER damper is designed and manufactured for a small-sized passenger vehicle. Subsequently. the vehicle with ER damper is modeled to analyze performance through computer simulation. Both simualtion and field test show that the proposed semiactive ER suspension system can provide superior ride comfortability to some conventional system.