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TECHNICAL PAPERS

An Accurate Full Car Ride Model Using Model Reducing Techniques

[+] Author and Article Information
Chul Kim

General Motors Co.

Paul I. Ro

Department of Mechanical Engineering, North Carolina State University, Raleigh, NC 27695

J. Mech. Des 124(4), 697-705 (Nov 26, 2002) (9 pages) doi:10.1115/1.1503065 History: Received October 01, 2000; Online November 26, 2002
Copyright © 2002 by ASME
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References

Kim,  C., Ro,  P. I., and Kim,  H., 1999, “Effect of Suspension Structure on Equivalent Suspension Parameters,” Journal of Automobile Engineering, IMechE, 213(D), pp. 457–470.
Kim,  C., and Ro,  P. I., 2000, “Reduced Order Modeling and Parameter Estimation for Quarter Car Suspension System,” Journal of Automobile Engineering, IMechE, 214(D), pp. 851–864.
Kim, C., and Ro, P. I., 2001, “An Accurate Simple Model for Vehicle Handling Using Model Reduction Technique,” Transactions of the SME, Journal of Passenger Cars, in press.
Alleyne,  A., 1997, “Improved Vehicle Performance Using Combined Suspension and Braking Forces,” Veh. Syst. Dyn., 27, pp. 235–265.
Williams,  D. E., and Haddad,  W. M., 1997, “Active Suspension Control to Improve Vehicle Ride and Handling,” Veh. Syst. Dyn., 28, pp. 1–24.
Demic,  M., 1997, “Identification of Vibration Parameters for Motor Vehicles,” Veh. Syst. Dyn., 27, pp. 65–88.
Crolla,  D. A., and Abdel-Hady,  M. B. A., 1991, “Active Suspension Control; Performance Comparisons Using Control Laws Applied to a Full Vehicle Model,” Veh. Syst. Dyn., 20, pp. 107–120.
Davison,  E. J., 1966, “A Method for Simplifying Linear Dynamic Systems,” IEEE Trans. Autom. Control, 11, pp. 93–101.
Chen,  C. F., and Shieh,  L. S., 1968, “A Novel Approach to Linear Model Simplifications,” Int. J. Control, 8(6), pp. 561–570.
Bonvin,  D., and Millichamp,  D. A., 1982, “A Unified Derivation and Critical Review of Modal Approaches to Model Reduction,” Int. J. Control, 35, pp. 829–848.
Kokotovic,  R. E., O’Malley,  R. E., and Sannuti,  P., 1976, “Singular Perturbations and Order Reduction in Control Theory—An Overview,” Automatica, 1, pp. 123–132.
Moore,  B. C., 1981, “Principal Component Analysis in Linear Systems: Controllability, Observability and Model Reduction,” IEEE Trans. Autom. Control, 26, pp. 17–32.

Figures

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ADAMS complex model for full car ride quality
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Simple full car ride model (7-DOF model)
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Mode shape of the reduced-order model I (sprung mass motions)
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Mode shapes of reduce-order model II (unsprung mass modes)
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The comparison of single actuator (u1) step response (ADAMS model and a reduced-order model)
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The comparison of single actuator (u1) step response (ADAMS model, a reduced-order model and the nominal model)
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The comparison of single actuator (u1) step response (ADAMS model, a reduced-order model and an identified 7-DOF model)
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The comparison of frequency characteristics ADAMS model and an identified 7-DOF model
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The comparison of the road step responses (Passive, active based on nominal model and active based on identified model)

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