Higher Order Continuous SI Engine Observers

Thomas Vesterholm, Elbert Hendricks, Niels Houbak

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A nonlinear compensator for the fuel film dynamics and a second order nonlinear observer for a spark ignition engine are presented in this paper. The compensator and observer are realized as continuous differential equations and an especially designed integration algorithm is used to integrate them in real time. Using these means, accurate steady state and transient air/fuel control can be obtained with excellent robustness properties. Some useful condition monitoring facilities are also available in the observer. The compensator and observer are based on a Mean Value Engine Model (MVEM) presented earlier. A MVEM is one which predicts the mean value of the engine states and internal variables over time scales which are large compared to the cyclic engine process.
Original languageEnglish
Title of host publicationAmerican Control Conference
Publication date1992
ISBN (Print)0-7803-0210-9
Publication statusPublished - 1992
Event1992 American Control Conference - Chicago, IL, United States
Duration: 24 Jun 199226 Jun 1992


Conference1992 American Control Conference
Country/TerritoryUnited States
CityChicago, IL

Bibliographical note

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