Continuously Variable Cam Phaser Optimization for Spark Ignition Gasoline Engine: A Computational Methodology Approach

2005-01-0227

04/11/2005

Event
SAE 2005 World Congress & Exhibition
Authors Abstract
Content
The future carbon dioxide regulations, which will go beyond the EURO IV, imply the development of more and more complex combustion systems. For this reason the activity was performed on a small gasoline engine equipped with a continuously variable cam phaser and a high turbulence combustion chamber. In order to reduce time and cost required by calibration and development activity due to this complex system an experimental/computational approach was applied. Overcoming one of the well-know limits of the 1-dimensional tools an empirical equation to predict the cyclic combustion stability was found. The prediction relationship is able to provide a preliminary cam phaser optimised position map based on the maximum combustion stability requirements. Besides it represents an internal/external EGR ‘tolerability’ related to the engine used. A quite satisfactory agreement between predicted and measured data was found.
Meta TagsDetails
DOI
https://doi.org/10.4271/2005-01-0227
Pages
11
Citation
Fiorenza, R., Formisano, G., and Strazzullo, L., "Continuously Variable Cam Phaser Optimization for Spark Ignition Gasoline Engine: A Computational Methodology Approach," SAE Technical Paper 2005-01-0227, 2005, https://doi.org/10.4271/2005-01-0227.
Additional Details
Publisher
Published
Apr 11, 2005
Product Code
2005-01-0227
Content Type
Technical Paper
Language
English