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2012 | OriginalPaper | Buchkapitel

11. Active Automotive Suspensions

verfasst von : Dr. Rajesh Rajamani

Erschienen in: Vehicle Dynamics and Control

Verlag: Springer US

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Abstract

The analysis of passive automotive suspensions in the last chapter showed that there are significant trade-offs in performance between the ride quality, rattle space and tire deflection transfer functions. Improvements in any one of the three transfer functions in the case of passive suspensions is often obtained at the expense of deterioration in the other two transfer functions. In this chapter, we look at the use of active suspensions in which electronically controlled actuators placed in the suspension are used to provide significantly superior performance. Alternate control laws are analyzed and the performance that active suspensions can provide is studied and compared with that of passive suspensions. The factors that limit the performance of active suspensions are studied. The analysis of “invariant points” is used to understand these performance limitations. A simple control law called sky-hook damping which needs only a few sensor measurements and can provide most of the benefits of full state feedback control laws is discussed. Finally, the chapter looks at actual experimental implementation issues, including the dynamics of hydraulic actuators used to provide the active force.

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Vorheriges Kapitel Design and Analysis of Passive Automotive Suspensions

Nächstes Kapitel Semi-Active Suspensions

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Chantranuwathanal, S. and Peng, H., “Force Tracking Control for Active Suspensions – Theory and Experiments,” Proceedings of the 1999 IEEE International Conference on Control Applications, Kohala Coast-Island of Hawaii, Hawaii, USA, August 22–27, 1999.

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Hansen, C.H. and Snyder, S.D., Active Control of Noise and Vibration, Chapter 12, Chapman and Hall, ISBN 0 419 19390 1, 1997.

Hedrick, J.K. and Butsuen, T., “Invariant properties of automotive suspensions,” Proceedings of the Institution of Mechanical Engineers, Part D: Transport Engineering. v 204 n 1 1990 p 21–27.

Hyde, T.T. and Anderson, E.H., “Actuator with built-in viscous damping for isolation and structural control,” AIAA Journal, Vol. 34, No. 1, pp. 129–135, Jan 1996.CrossRef

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Rajamani, R. and Hedrick, J.K., “Performance of Active Automotive Suspensions with Hydraulic Actuators: Theory and Experiment ”, Proceedings of the 1994 American Control Conference, Baltimore, Maryland, June 29-July 1, 1994, 94CH3390-2, Vol 2, pp. 1214–1218.CrossRef

Rajamani, R. and Hedrick, J.K., “Adaptive Observers for Active Automotive Suspensions - Theory and Experiment”, IEEE Transactions on Control Systems Technology, Vol. 3, No.1, pp. 86–93, March 1995.CrossRef

D. Sciulli, and D.J. Inman, “Isolation design for fully flexible systems,” Journal of Intelligent Material Systems and Structures,” Vol. 10, No. 10, pp. 813–824, October, 2000.

Wilson, D.A., Sharp, R.S. and Hassan, S.A., “Application of Linear Optimal Control Theory to the Design of Active Automotive Suspensions,” Vehicle System Dynamics, Vol. 15, No. 2, pp. 105–118, 1986.CrossRef

Yue, C., Butsuen, T. and Hedrick, J.K., “Alternative Control Laws for Automotive Suspensions,” Proceedings of the American Control Conference, pp. 2373–2378, 1988.

Zhang, Y. and Alleyne, A., “A Novel Approach to Active Vibration Isolation with Electrohydraulic Actuators,” Proceedings of the ASME International Mechanical Engineering Congress and Exposition, Paper FPST–25010, New York, 2001.

Titel: Active Automotive Suspensions
verfasst von: Dr. Rajesh Rajamani
Verlag: Springer US
Buch: Vehicle Dynamics and Control
Print ISBN: 978-1-4614-1432-2

Electronic ISBN: 978-1-4614-1433-9

Copyright-Jahr: 2012
DOI: https://doi.org/10.1007/978-1-4614-1433-9_11

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