This content is not included in your SAE MOBILUS subscription, or you are not logged in.
A Simple Linear Approach for Transient Fuel Control
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 03, 2003 by SAE International in United States
Annotation ability available
Significant A/F ratio excursion may occur during some engine transient operations, especially for transient periods of throttle tip in or tip out. A/F ratio excursion results in excessive emissions, extra fuel consumption, driveability deterioration and three-way-catalyst (TWC) efficiency drop. Simple two-parameter (X, τ) wall wetting models have traditionally been used to describe this transient A/F ratio excursion phenomenon. The transient fuel control techniques are utilized for this model to be applicable across vehicles, engines, fuel types and ambient conditions, so as to compensate for the A/F ratio excursion with the extra compensation fuel. More complicated model structures must be further expanded and model dependence on various environment conditions must be established to achieve a precise model. In this paper, a simple linear approach is proposed for transient fuel control, using least squares estimation.
|Technical Paper||Digitally Programmed Engine Fuelling Controls|
|Technical Paper||A Comparison of the Effect of E85 vs. Gasoline on Exhaust System Surface Temperatures|
|Technical Paper||The Behavior of Multiphase Fuel-Flow in the Intake Port|
CitationYe, Z., "A Simple Linear Approach for Transient Fuel Control," SAE Technical Paper 2003-01-0360, 2003, https://doi.org/10.4271/2003-01-0360.
- Purdy G.R. Douglas R. Chewtew A. “Wall-Wetting Theories Applied to the Transient Operation of a Single Cylinder Four-Stroke Gasoline Engine” SAE Technical Paper Series 932446 1993
- Moraal P.E. “Adaptive Transient Fuel Control with an EGO Sensor using Fuzzy Logic” Ford Research Technical Report SR-95-008
- Curtis E. Aquino C. Trumpy D. David G. “A New Port and Cylinder Wall Wetting Model to Predict Transient Air/Fuel Excursions in a Port Fuel Injected Engine” SAE Technical Paper Series 961186 1996
- Nasu M. Ohata A. Abe S. “Model-Based Fuel Injection Control System for SI Engines” SAE Technical Paper Series 961188 1996
- Horie K. Takahasi H. Akazaki S. “Emissions Reduction During Warm-Up Period by Incorporating a Wall-Wetting Fuel Model on the Fuel Injection Strategy During Engine Starting” SAE Technical Paper Series 952478 1995
- Onder C.H. Roduner C.A. Simons M.R. Geering H. P. “Wall-Wetting Parameters Over the Operating Region of s Sequential Fuel-Injected SI Engine” SAE Technical Paper Series 980792 1998
- Guzzella L. “Models & Model-based Control of I. C. Engines - A Nonlinear Approach” SAE Technical Paper Seires 950844 1995
- Nishyama R. et.al “An Analysis of Induction Port Fuel Behavior” SAE Technical Paper Series 890761 1989
- Heywood J. “Internal Combustion Engine Fundamentals” McGraw-Hill Publisher 1988
- Astrom K. Wittenmark B. “Adaptive Control” Second Addison-Wesley Publishing Company Incorporation 1995
- Khalil H.K. “Nonlinear Systems” 2nd Prentice Hall 1996