Commenced in January 2007
Paper Count: 30836
Design and Simulation of Air-Fuel Ratio Control System for Distributorless CNG Engine
Abstract:This paper puts forward one kind of air-fuel ratio control method with PI controller. With the help of MATLAB/SIMULINK software, the mathematical model of air-fuel ratio control system for distributorless CNG engine is constructed. The objective is to maintain cylinder-to-cylinder air-fuel ratio at a prescribed set point, determined primarily by the state of the Three- Way-Catalyst (TWC), so that the pollutants in the exhaust are removed with the highest efficiency. The concurrent control of airfuel under transient conditions could be implemented by Proportional and Integral (PI) controller. The simulation result indicates that the control methods can easily eliminate the air/fuel maldistribution and maintain the air/fuel ratio at the stochiometry within minimum engine events.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1071966Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 4057
 Manzie C,Palaniswam M I,Ralph D, et al. Model predictive control of a fuel injection system with a radial basis function network observer
[J]. Journal of Dynamic Systems Measurement and Control. 2002, 124,(4): 648-658.
 Takeshi Takiyamaa, Eisuke Shiomib, Shigeyuki Moritaa. Air - fuel ratio control system using pulse width and amplitude modulation at transient state. JSAE Review.2001,22:537-544.
 Andrew Mills. Controlling the sensitivity of optical oxygen sensors. Sensors and Actuators B.1998,51:60-68.
 Mianzo, L., Peng, H., Haskara, I., 2001. Transient air-fuel ratio H8 preview control of a drive-by-wire internal combustion engine. In: Proc. Amer. Control Conf. pp. 2867-2871.
 Muske, K. R., Jones, C. P. J., 2006. A model-based si engine air fuel ratio controller In: Proc. Amer. Control Conf. pp. 3284-3289.
 Nakagawa, S., Katogi, K., Oosuga, M., 2002. A new air-fuel ratio feedback control for ulev/sulev standard. SAE Paper (2002-01-0194).
 Ei Ei Moe, Dr. Zaw Min Aung, Dr. Kyawt Khin, Digital Ignition System for Distributorless CNG Engine , ICBIR Conference 2010, Bangkok, Thailand..