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Steady-State and Transient A/F Control Requirements for Cold Operation of a 1.6 Liter Engine with Single-Point Fuel Injection
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Abstract
An engine dynamometer test facility-capable of controlling temperatures from 0°F to 150°F was used to investigate A/F control characteristics of a 1.6 liter engine with single point fuel injection. Two types of tests were run. In the first, the effect of induction system temperature on manifold wall wetting and transient A/F control was determined. In the second, a cold start procedure was developed to determine the effect of engine temperature on the percent of fuel which burns by observing exhaust A/F during steady state operation while the engine warms up. It was found that transient A/F control problems due to manifold wall wetting are much greater than steady state problems associated with incomplete fuel burning.
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Aquino, C. and Fozo, S., "Steady-State and Transient A/F Control Requirements for Cold Operation of a 1.6 Liter Engine with Single-Point Fuel Injection," SAE Technical Paper 850509, 1985, https://doi.org/10.4271/850509.Also In
References
- Aquino C. F. “Transient A/F Control Characteristics of the 5 Liter Central Fuel Injection Engine” SAE Paper No. 810494 1981
- Wu H. Aquino C. F. Chou G. L. “A 1.6 Liter Engine and Intake Manifold Dynamic Model” ASME Paper 83-WA/DSC-39 1983