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류정호(Jeong-ho Yoo),김대욱(Dae-wook Kim),유영숙(Young-sook Yoo),엄명도(Myung-do Eum),김종춘(Jong-choon Kim),이성욱(Sung-wook Lee),백두성(Doo-sung Baik) 한국자동차공학회 2009 한국 자동차공학회논문집 Vol.17 No.4
Emission regulations on greenhouse gas(GHG) in automobiles have been stringent because of global warming effect. Over 90% of total GHG emission are carbon dioxides and about 20% of this CO₂ emission are emitted from automobiles. In this study, 110 vehicles were tested on a chassis dynamometer and CO₂ emissions and fuel economy were measured in order to investigate the characteristics of CO₂ emission factor from passenger vehicles which are the most dominant vehicle type in Korea. The characteristics of emissions in accordance with displacements, gross vehicle weight, NIER and CVS-75 speed mode were discussed. It was found that vehicles having larger displacement, heavier gross vehicle weight, automatic transmission and specially at cold start emitted more CO₂ emissions. From these results, correlation between CO₂ emission and fuel economy was also obtained. This study may contribute to evaluate domestic greenhouse gas emissions and establish national policies on climate changes in future.