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Modeling and Control of an Engine Mount Using ER Fluids and Piezoactuators

ER 유체와 압전작동기를 이용한 엔진마운트의 모델링 및 제어

Choi, Seung-Hoon;Choi, Young-Tai;Choi, Seung-Bok
최승훈;최영태;최승복

  • Published : 1996.02.01

Abstract

This paper presents a new prototype of an engine mount for a passenger vehicle featuring ER(elector-rheological) fluids and piezoactuators. Conventional rubber mounts and various types of passive or semi-active hydraulic engine mounts have their own functional aims on the limited frequency band in the board engine operating frequency range. However, the proposed engine mount covers all frequency range of the engine operation. A mathematical model of the proposed engine mount is derived using the bond graph method which is inherently domain, the ER fluid is activated upon imposing electric field for vibration isolation while the piezoactuator. Computer control electric fluid for the ER fluid H.inf. cotrol technique is adopted for the piezoactuator. Computer simulation is undertaken in order to demonstrate isolation efficiency of the engine mount over wide operating frequency range.

Keywords

Engine Mount;Vibration Isolation;Electro-Rheological Fluid;Piezoactuator;$H_\infty$Control

References

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