Electronic Control Unit Design for a Retrofit Fuel Injection System of a 4-Stroke 1-Cylinder Small Engine


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Most motorcycles in developing countries use carburetor systems as the fuel delivery method especially for models with the cubic capacity of less than 125cc. However, small gasoline fuelled engines operating using carburetor system suffer from low operating efficiency, waste of fuel and produce higher level of hazardous emissions to the environment. In this study, an electronic control unit (ECU) is designed and simulated for a retrofit fuel injection (FIS) system. The ECU is targeted to have a simple design, reliable and offers all of the necessary functions of the modern ECU. The simulation results shows that the designed ECU can determine the injection period as close to the proposed value and can drive the injector efficiently based on the generated PWM pulse.



Edited by:

Mohamed Othman




M. T. Muslim et al., "Electronic Control Unit Design for a Retrofit Fuel Injection System of a 4-Stroke 1-Cylinder Small Engine", Applied Mechanics and Materials, Vols. 229-231, pp. 968-972, 2012

Online since:

November 2012




[1] Mohmed Yusof et al. (2010).

[2] Ibrahim Sheikh et al. (2006), Mode Choice Model for Vulnerable Motorcyclist, CopyrightC 2006 Taylor & Francis Group, LLC. ISSN: 1538-9588 print / 1538-957X online. DOI: 10. 1080/15389580600550354.

[3] Latey, A.A., et al. (2005), Gasoline Fuel Injection Investigations on Single Cylinder SI Engine,. SAE Technical Paper, No. 2005-26-012.

DOI: https://doi.org/10.4271/2005-26-012

[4] Hayakawa, K., et al. (2004), 125cc Small Engine Fuel Injection System with Low Emissions Solutions,. SAE Technical Paper, No. 2004-32-0094.

DOI: https://doi.org/10.4271/2004-32-0094

[5] Wang, S., L. Wang, et al. (2008), Research on electronically controlled fuel injection system". Vehicle Power and Propulsion Conference, 2008. VPPC , 08. IEEE.

DOI: https://doi.org/10.1109/vppc.2008.4677554

[6] Mohd Faisal Hushim, et al. (2012), Effect of Intake Manifold Angle of Port-Fuel Injection Retrofit-Kit to the Performances of an S.I. Engine, Applied Mechanics and Materials (Volume 165), vol. Trends in Automotive Research, pp.31-37.

DOI: https://doi.org/10.4028/www.scientific.net/amm.165.31