Intake Air Mass Observer Design Based on Extended Kalman Filter for Air-Fuel Ratio Control on SI Engine

Lei Meng, Jie Luo, Xu Yang and Chunnian Zeng
Additional contact information
Lei Meng: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Jie Luo: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Xu Yang: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Chunnian Zeng: School of Automation, Wuhan University of Technology, Wuhan 430070, China

Energies, 2019, vol. 12, issue 18, 1-12

Abstract: Air-fuel ratio (AFR) control is important for the exhaust emission reduction while using the three-way catalytic converter in the spark ignition (SI) engine. However, the transient cylinder air mass is unable to acquire by sensors directly and it may limit the accuracy of AFR control. The complex engine dynamics and working conditions make the intake air estimation a challenge work. In this paper, a novelty design of intake air observer is investigated for the port-injected SI engine. The intake air dynamical modeling and the parameter fitting have been carried out in detail. Extended Kalman Filter (EKF) has been used to optimize the instantaneous cylinder charge estimation and minimize the effort of pump gas fluctuation, random noise, and measurement noise. The experiment validation has been conducted to verify the effectiveness of the proposed method.

Keywords: intake air mass observer; Extended Kalman Filter; air-fuel ratio control; SI engine (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/18/3444/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/18/3444/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:18:p:3444-:d:264860

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().