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Fuel Behavior Model-Based Injection Control for Motorcycle Port-Injection Gasoline Engines
Technical Paper
2007-32-0045
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English
Abstract
Today, environmental issues have become major global issues. Under these social circumstances, restrictions on vehicles powered by internal-combustion engines have become increasingly stringent. While, many models of motorcycle are intended for hobbyists, and enjoyment is a major factor in the appeal of these products. So it is necessary to simultaneously realize improved environmental performance and heightened enjoyment. Therefore, the authors focused on controlling the richness of the mixture, the air-fuel ratio. In the case of intake port-injection engines, it is common these days to control fuel injection using a fuel model that takes fuel adhered in the intake port into consideration, in order to control the air-fuel ratio. When this method of control is used, it is necessary to derive the ratio of injected fuel that adheres inside the intake pipe and the ratio of adhered fuel that is drawn into the cylinder. However, it is difficult to actually measure these values, and the ratios need to be estimated. Therefore, the authors developed appropriate technologies to derive the fuel adhesion ratio and fuel removal ratio statistically using the system identification approach, thereby achieving highly accurate air-fuel ratio control.
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Citation
TANABE, H., TORIGOSHI, M., and SAKODA, S., "Fuel Behavior Model-Based Injection Control for Motorcycle Port-Injection Gasoline Engines," SAE Technical Paper 2007-32-0045, 2007.Also In
References
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- Imatake Nobuo et al. “An Analysis of the Fuel Behavior Quantitatively of Gasoline Engine Port Injection” The 13th Internal Combustion Rngine Symposium
- Okada Masanori et al. “Air-Fuel Ratio Behavior of Spark Ignition Engine at Transient Condition” Proceedings no.946
- Nasu Masahiro et al. “Model-Based Fuel Injection Control System for SI Engines” SAE paper no. 961188