A Method for Predicting Performance Improvements with Effective Cycle-To-Cycle Control of Highly Dilute Spark Ignition Engine Combustion
Dilute spark ignition engine combustion offers a promising method of improving fuel efficiency and reducing engine-out emissions and yet is not currently feasible owing to high levels of cyclic variability under highly dilute homogeneous operation. The deterministic nature of the undesirable cycle-to-cycle variations in combustion heat release implies that appropriate control schemes should yield significant reductions in cyclic variability, making it possible to use higher levels of charge dilution in production engines. A novel analysis approach is used to predict the improvement in fuel conversion efficiency that could be expected with effective control. Additionally, this analysis gives some insight into the effect of spark timing on the dynamics and controllability of the system.
B. C. Kaul et al., "A Method for Predicting Performance Improvements with Effective Cycle-To-Cycle Control of Highly Dilute Spark Ignition Engine Combustion," Journal of Automobile Engineering: Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering., Professional Engineering Publishing (Institution of Mechanical Engineers), Mar 2009.
The definitive version is available at http://dx.doi.org/10.1243/09544070JAUTO943
Mechanical and Aerospace Engineering
Electrical and Computer Engineering
Keywords and Phrases
Cycle-To-Cycle Control; Dilute Spark Ignition Engine Combustion; Fuel Efficiency; Performance Improvement
Article - Journal
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