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RESEARCH PAPERS

Modeling and Implementation of Semi-Active Hydraulic Engine Mounts

[+] Author and Article Information
P. L. Graf, R. Shoureshi

Ray W. Herrick Laboratories, School of Mechanical Engineering, Purdue University, W. Lafayette, IN 47906

J. Dyn. Sys., Meas., Control 110(4), 422-429 (Dec 01, 1988) (8 pages) doi:10.1115/1.3152706 History: Received February 16, 1988; Online July 21, 2009

Abstract

In an effort to improve passenger comfort, the automotive industry is evaluating more sophisticated techniques to reduce engine excited frame vibrations. A new approach is to implement hydraulic mounts in a semi-active mode. In this mode, low power actuators are used to change the impedance characteristics of the mount. This paper presents a dynamic model and analysis of the semi-active hydraulic mount. Experimental data confirming the mount model are presented. Finally, results of an experimental study on the implementation of the semi-active mounts on a production automotive vehicle are presented. The study focuses on frame vibration reduction during engine idle. The semi-active hydraulic mounts show improved vibration levels over passive hydraulic mounts in the vehicle application.

Copyright © 1988 by ASME
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