NDLI: Alternative observers for SI engine air/fuel ratio control

Content Provider	IEEE Xplore Digital Library
Author	Hendricks, E. Poulsen, J. Olsen, M.B. Jensen, P.B. Fons, M. Jepsen, C.
Copyright Year	1996
Description	Author affiliation: Inst. for Autom., Tech. Univ. Denmark, Lyngby, Denmark (Hendricks, E.)
Abstract	In earlier work it has been shown that a nonlinear observer based on the use of the manifold pressure state equation and a nonlinear fuel film compensator can maintain accurate A/F ratio control during both steady state and transient operation. This observer may be called a manifold absolute pressure (MAP) observer because it is fundamentally dependent on the use of the manifold pressure state equation and a MAP sensor. It is in reality a constant gain extended Kalman filter. While this observer shows promise for some applications, it obviously cannot immediately be used with air mass flow sensors other than a MAP sensor. In this paper it is shown that it is possible to construct a family of alternative nonlinear observers which "naturally" allow the use of any given air mass flow related sensor or a combination of them for A/F ratio control. This new family of observers provides the SI engine control system designer with a variety of robust control systems which can easily be made redundant in order to satisfy newer engine emissions and diagnosis requirements and legislation.
Starting Page	2806
Ending Page	2811
File Size	682432
Page Count	6
File Format	PDF
ISBN	0780335902
ISSN	01912216
DOI	10.1109/CDC.1996.573541
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-12-13
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Engines Fuels Nonlinear equations Manifolds Pressure control Steady-state Weight control Control systems Robust control Legislation
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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