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TECHNICAL PAPERS

Linear Robust Control of Identified Nonlinear Inverse Compensated SI Engine

[+] Author and Article Information
A. P. Petridis, A. T. Shenton

Department of Engineering, University of Liverpool, P.O. Box 147, Liverpool L69 3BX, UK

J. Dyn. Sys., Meas., Control 125(1), 69-73 (Mar 10, 2003) (5 pages) doi:10.1115/1.1542640 History: Received February 01, 2001; Revised July 01, 2002; Online March 10, 2003
Copyright © 2003 by ASME
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References

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Horowitz,  I., 1981, “Improvement in Quantitative Non-linear Feedback Design by Cancellation,” Int. J. Control, 34, pp. 547–560.
Petridis,  A. P., and Shenton,  A. T., 2000, “Non-linear Inverse Compensation of an SI Engine by System Identification for Robust Performance Control,” Inverse Prob. in Eng., 8, pp. 163–176.
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Petridis, A. P., and Shenton, A. T., 2002, “Linear Robust Control of Identified Input-Output Non-linear Inverse Compensated SI Engine,” Univ. of Liverpool, Dept. of Engineering Powertrain Control Group: Report No. MES/ATS/INT/040/2002, May.
Petridis, A. P., 2000, “Non-linear Robust Control of S.I. Engines.” Ph.D. thesis, Liverpool Univ.
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Shenton, A. T., and Besson, V., 2000, “Robust Performance S. I. Engine Idle-Speed Control by a Mixed-Sensitivity Parameter Space Method,” 3rd IFAC Symp. on Robust Control Design.
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Figures

Grahic Jump Location
Open-loop test filter and inverse compensation
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Comparing the VM of uncertainty disks with (bottom) and without (top) nonlinear inverse compensation
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Automotive SISO idle speed control system
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Nyquist plot of the loop function for the system without inverse compensation
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Nyquist plot of the loop function for the inverse compensated system
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Comparison of the engine time response with and without the inverse compensation
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Engine time response with γ=1.3
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Engine time response with γ=2 and τ=5Ts

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