For better understanding of diesel emissions in real world, the effects of driving conditions and fuel properties on diesel emissions were studied.A diesel engine system that is compliant to the Japanese New Short Term Regulation (J-2003 regulation) was used in this study. Major technologies for emission reduction were a common-rail high-pressure fuel injection equipment system, a cooled exhaust gas recirculation (EGR) system and a diesel oxidation catalyst (DOC).Various driving modes with a wide range of average vehicle speeds and accelerations were selected, including US FTP, US Highway, Japanese JC08, Japanese JE05, Tokyo Metropolitan Government #2, #5 and #8.Several kinds of test fuels of which characteristics were drastically changed in distillation range, aromatics content and sulfur content were used. A test fuel that complies with the Category-4 Specification of the World-Wide Fuel Charter (WWFC) was included.Emissions of PM (SOF and soot), NOx, THC, CO, CO2 and fuels economies were examined. Cleanup effect of the DOC was also investigated.
Effects of Driving Conditions and Fuel Properties on Diesel Emissions
Sae Technical Papers
Powertrain & Fluid Systems Conference & Exhibition ; 2005
2005-10-24
Conference paper
English
Effects of driving conditions and fuel properties in diesel emissions
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