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Optical Tuning of Adaptive Hydraulic Engine Mounts
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English
Abstract
Recent trends in lighter and smaller vehicles have motivated the application of adaptive hydraulic engine mounts for control of vehicle frame vibrations. This paper presents the results of a study on hydraulic engine mounts implemented on a light truck. The focus is on derivation of an optimal scheme for tuning the adaptive mounts. A simplified model of a vehicle engine suspension systems is derived. Simulations of receptance and accelerance are conducted to provide insight into mount tuning. An optimal mount tuning function is derived based on maximization of kinetic energy in the bleed fluid loop. Peak accelerance is attenuated by 18 db concurrently with peak receptance attenuation of 6 db. A general scheme for formulation of the tuning is presented.
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Citation
Bouchillon, S., Shoureshi, R., Knurek, T., and Schilke, P., "Optical Tuning of Adaptive Hydraulic Engine Mounts," SAE Technical Paper 891160, 1989, https://doi.org/10.4271/891160.Also In
References
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- Graf, P.L. Shoureshi R. “On implementation of Adaptive Hydraulic Mounts” 1987 SAE Paper No. 870634
- Bouchillon, M.S. “Optimal Tuning for Adaptive Hydraulic Engine Mounts” May 1989 School of Mechanical Engineering, Purdue University
- Graf, Peter L. “Semi-Active and Active Control of Frame Vibration in Automotive Vehicles” December 1987 Ph.D. Thesis School of Mechanical Engineering, Purdue University
- Graf, P. L. Shoureshi R. Bouchillon S. “Open-Loop versus Closed-Loop Control for Hydraulic Engine Mounts” 1988 SAE Paper No. 880075
- Smith, C.C. McGehee D.Y. Healey A.J. “The Prediction of Passenger Riding Comfort From Acceleration Data” Trans. ASME J. of Dynamic Systems, Measurement and Control 100 34 41 March 1978
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