ENGINE MODELING FOR CONTROL APPLICATIONS - A CRITICAL SURVEY

In earlier work published by the author and co-authors, a dynamic engi ne model called a Mean Value Engine Model (MVEM) was developed. This m odel is physically based and is intended mainly for control applicatio ns. In its newer form, it is easy to fit to many different engines and requires little engine data for this purpose. It is especially well s uited to embedded model applications in engine controllers, such as no nlinear observer based air/fuel ratio and advanced idle speed control. After a brief review of this model, it will be compared with other si milar models which can be found in the literature. The attempt will be made to point out the differences between the new modified MVEM and t hose developed elsewhere. In particular, the questions of fitting simp licity and general applicability are to be treated.