AFR Control on a Single Cylinder Engine Using the Ionization Current The Ohio State University

Format:

Conference/Event

Author/Creator:

Upadhyay, Devesh, author.

Conference Name:

International Congress & Exposition (1998-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1998

Summary:

Over the years numerous researchers have suggested that the ionization current signal carries within it combustion relevant information. The possibility of using this signal for diagnostics and control provides motivation for continued research in this area. To be able to use the ion current signal for feedback control a reliable estimate of some combustion related parameter is necessary and therein lies the difficulty. Given the nature of the ion current signal this is not a trivial task. Fei An and others [1] employed PCA for feature extraction and then used these feature vectors to design a neural network based classifier for the estimation of air to fuel ratio (AFR). Although the classifier predicted AFR with sufficient reliability, a major draw back was that the ion current signals used for prediction were averaged signals thus precluding a cycle to cycle estimate of AFR. The thrust of this research was to find ways of using the ion current signal for AFR control on a single cylinder methane fueled spark ignition engine

Notes:

Vendor supplied data

Publisher Number:

980203

Access Restriction:

Restricted for use by site license