Individual A/F Estimation and Control for Multi-cylinder IC Engines

Author

Suzuki, Kenji ; Shen, Tielong ; Kako, Junichi ; Oguri, Y.

Author_Institution

Dept. of Mech. Eng., Sophia Univ., Tokyo

fYear

2006

Firstpage

3646

Lastpage

3651

Abstract

In the IC engine with multi-cylinders, estimation of cylinder imbalance characteristics is important for closed loop torque balancing control, in order to obtain high quality torque generation. This paper addressed the individual cylinder A/F estimation and control problem. First, a calculating model for the individual A/F based on multiple sampling data of the single sensor is proposed. Then, using the estimated value of the individual cylinder A/F, a feedback control approach with fuel injection for each cylinder is proposed. Finally, a case study of feedback control is demonstrated with experiment

Keywords

closed loop systems; feedback; fuel systems; internal combustion engines; machine control; torque control; closed loop torque balancing control; cylinder imbalance characteristics; engine control; feedback control approach; fuel injection; individual A/F estimation; multicylinder IC engines; multiple sampling data; quality torque generation; single sensor; Combustion; Engine cylinders; Feedback control; Fluid flow; Fuels; Gas detectors; Manifolds; Mechanical engineering; Sampling methods; Torque control; A/F estimation; Individual cylinder balancing; engine control;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE-ICASE, 2006. International Joint Conference

Conference_Location

Busan

Print_ISBN

89-950038-4-7

Electronic_ISBN

89-950038-5-5

Type

conf

DOI

10.1109/SICE.2006.314924

Filename

4108396