Effect of Operation Strategy on First Cycle CO, HC, and PM/PN Emissions in a GDI Engine

Event
SAE 2015 World Congress & Exhibition
Authors Abstract
Content
The impact of the operating strategy on emissions from the first combustion cycle during cranking was studied quantitatively in a production gasoline direct injection engine. A single injection early in the compression cycle after IVC gives the best tradeoff between HC, particulate mass (PM) and number (PN) emissions and net indicated effective pressure (NIMEP). Retarding the spark timing, it does not materially affect the HC emissions, but lowers the PM/PN emissions substantially. Increasing the injection pressure (at constant fuel mass) increases the NIMEP but also the PM/PN emissions.
Meta TagsDetails
DOI
https://doi.org/10.4271/2015-01-0887
Pages
9
Citation
Rodriguez, J., and Cheng, W., "Effect of Operation Strategy on First Cycle CO, HC, and PM/PN Emissions in a GDI Engine," SAE Int. J. Engines 8(3):1098-1106, 2015, https://doi.org/10.4271/2015-01-0887.
Additional Details
Publisher
Published
Apr 14, 2015
Product Code
2015-01-0887
Content Type
Journal Article
Language
English