Simple Nonlinear Air to Fuel Ratio Control for Spark Ignition Engines

Author

Jansri, Anurak ; Sooraksa, Pitikhate

Author_Institution

Dept. of Comput. Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Ladkrabang, Thailand

fYear

2012

fDate

4-6 June 2012

Firstpage

278

Lastpage

281

Abstract

Development of a mathematical model of air to fuel ratio and control for SI engines has been proposed in various themes to satisfy technical specification. This paper reveals a simple yet effective nonlinear control to enhance the regulator. The mean value engine model (MVEM) is employed and enhanced to validate the effectiveness of the proposed scheme. The regulator is designed using a discrete fuzzy PI algorithm, provided easy tuning, robustness, and rapid development with simple architecture. Effects on dead time, exhausted delay, and chaotic disturbance are also included. The simulation results show satisfactory performance using standard criteria such as an integral of absolute error (ITAE), an integral of square error (ISE) and an integral of absolute control output (IACO) and a mean absolute error (MAE).

Keywords

electric ignition; integral equations; internal combustion engines; sparks; absolute control output integral; absolute error integral; chaotic disturbance; dead time; discrete fuzzy PI algorithm; exhausted delay; mathematical model; mean absolute error; mean value engine model; nonlinear air to fuel ratio control; nonlinear control; spark ignition engines; square error integral; Atmospheric modeling; Combustion; Fuels; Ignition; Silicon; Sparks; FOPDDT; air-fuel ratio; fuzzy control; internal combustion; nonlinear control;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer, Consumer and Control (IS3C), 2012 International Symposium on

Conference_Location

Taichung

Print_ISBN

978-1-4673-0767-3

Type

conf

DOI

10.1109/IS3C.2012.76

Filename

6228300