What do you mean by semi-active?
Do you have a reasonable understanding of control theory?
If you haven't done so I suggest you read and understand Milliken's Race Car Vehicle Dynamics.
Heres all the SAE papers
2002-01-1582 A new approach to control a semi-active suspension using different optimal strategies
Author(s): Nikzad S., V.,
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2001-01-3269 Hybrid control of a semi-active suspension system
Author(s): Nouillant, Cedic, Moreau, Xavier, Oustaloup, Alain,
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2001-01-3306 Semi-active steering wheel for steer-by-wire system
Author(s): Park, Youngjin, Jung, Inyong,
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2000-01-3408 Vibration and shock isolation performance of a commercial semi-active vehicle seat damper
Author(s): McManus, Steven J., St. Clair, Kenneth A.,
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2000-01-3304 Optimization of a vehicle suspension using a semi-active damper
Author(s): Motta, Daniel S., Zampieri, Douglas E., Pereira, Allan K. A.,
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2000-05-0178 An integrated semi-active suspension for passenger vehicle
Author(s): Park, Hyuk-Sung, Park, Young-Pil,
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1996-25-0303 Observers for slow-active suspension control
Author(s): Zattoni, E., Chericoni, M.,
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960936 Optimal preview control design of active and semi-active suspension systems including jerk
Author(s): Youn, Iljoong,
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951063 Optimization of active and passive suspensions based on a full car model
Author(s): ElBeheiry, ElSayed M., Karnopp, Dean C.,
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942378 Semi-active suspension with multiple damping and leveling curves
Author(s): Vannucci, Sergio Nelo,
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943941 Optimal preview control design of active and semi-active suspension including jerk
Author(s): Youn, Iljoong,
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945064 Preview hydraulic-pneumatic semi-active suspension
Author(s): Roberti, V., Jezequel, L.,
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945065 Design problems of the semi-active wheel suspension system and a possible way of their elimination
Author(s): Palkovics, L., Bokor, J., Venhovens, P.,
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948188 Design of imc structured automotive semi-active damping controller
Author(s): Park, Sejin, Koo, Jakyum,
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948190 A robust semi-active suspension control law to improve ride quality
Author(s): Yi, Kyongsu, Oh, Taeil, Suh, Myung W.,
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940863 Development of the semi-active suspension system based on the Sky-hook damper theory
Author(s): Emura, Junichi, Kakizaki, Shinobu, Yamaoka, Fumiyuki, Nakamura, Michiya,
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933008 Analysis of intelligent suspension systems for commercial vehicles
Author(s): von Glasner, Egon-Christian, Goehring, Ernst, Povel, Rolf, Schuetzner, Paul,
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933048 Investigations into alternative suspension for commercial vehicles
Author(s): Wilkinson, Paul A., Crolla, David A.,
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933805 Observer Design for Electronic Suspension Applications
Author(s): Hedrick, J. K.,
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928338 Study of a nonlinear preview semi-active suspension system
Author(s): Jezequel, L., Roberti, V.,
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925105 On the model-based design of semi-active and active suspension for private cars
Author(s): Roukieh, S., Titli, A.,
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925235 Development of a new continuously variable damper for semi- active suspensions
Author(s): De Koch, C.,
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922140 Passive versus active and semi-active suspension from theory to application in North American industry
Author(s): Barak, Pinhas,
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917178 Semiactive and active control of air suspension systems for commercial vehicles
Author(s): Goehring, E., Povel, R., von Glasner, E. Ch., Schuetzner, P.,
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910659 A regenerative active suspension system
Author(s): Wendel, Glenn R., Stecklein, Gary L.,
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911904 Semi-active suspension control for a full vehicle model
Author(s): Crolla, D. A., Abdel-Hady, M. B. A.,
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900642 The influence of sampling conditions on the repeatability of diesel particulate and vapor phase hydrocarbon and PAH measurements
Author(s): Waldenmaier, D. A., Gratz, L. D., Bagley, S. T., Johnson, J. H., Leddy, D. G.,
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902283 Control of active suspension with parameter uncertainty and non-white road unevenness disturbance input
Author(s): Kiriczi, S., Kashani, R.,
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902284 Methods for eliminating jerk and noise in semi-active suspensions
Author(s): Nobles, Charles M., Miller, Lane R.,
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904817 Analysis of active and semi-active vehicle suspensions fitted with a pneumatic self-energizing levelling device
Author(s): Hall, B. B., Tang, J. S.,
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905124 A modular concept for suspension control
Author(s): Decker, H., Schramm, W., Kallenbach, R.,
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890089 Design and evaluation of an adjustable automobile suspension
Author(s): Barak, Pinhas,
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892484 Experimental comparison of passive, semi-active on/off, and semi- active continuous suspensions
Author(s): Ivers, Douglas E., Miller, Lane R.,
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892485 Self-tuning optimal control of an active suspension
Author(s): Chen, Hung-Hsu Fred, Guenther, Dennis A.,
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881133 The design and development of a semi-active suspension for a military tank
Author(s): Miller, Lane R., Nobles, Charles M.,
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884420 Theoretical comparisons of various active suspension systems in terms of performance and power requirements
Author(s): Crolla, D. A., Aboul Nour, A. P. A.,
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874774 Performance and design considerations for dissipative semi-active suspension systems for automobiles
Author(s): Sharp, R. S., Hassan, S. A.,
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864901 The relative performance capabilities of passive, active and semi- active car suspension systems
Author(s): Sharp, R. S., Hassan, S. A.,
Cheers
Greg Locock
