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Control of A/F Ratio During Engine Transients
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 03, 1999 by SAE International in United States
Annotation ability available
Variations in air-fuel ratio within a 16-valve port-injection spark-ignition engine have been examined as a consequence of rapid transients in load at constant speed with fuel injection controlled by the production engine-management system and by a custom-built controller. The purpose was to minimize excursions from stoichiometry by the use of a controller to impose an injection strategy, guided by results obtained with the production management system. The strategy involves a model that takes account of manifold filling and the delays in transport of fuel from the injectors to the cylinder. The results show that the excursions in air-fuel ratio from stoichiometry were reduced from more than 25% to 6%.
CitationXu, H., "Control of A/F Ratio During Engine Transients," SAE Technical Paper 1999-01-1484, 1999, https://doi.org/10.4271/1999-01-1484.
SAE 1999 Transactions - Journal of Fuels and Lubricants
Number: V108-4 ; Published: 2000-09-15
Number: V108-4 ; Published: 2000-09-15
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