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논문 기본 정보

자료유형
학술대회자료
저자정보
김도완 (콘티넨탈 오토모티브 시스템) 김승범 (현대기아자동차) 이승환 (콘티넨탈 오토모티브 시스템) 임종석 (콘티넨탈 오토모티브 시스템)
저널정보
한국자동차공학회 한국자동차공학회 춘계학술대회 2012 한국자동차공학회 부문종합 학술대회
발행연도
2012.5
수록면
191 - 196 (6page)

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초록· 키워드

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This paper focuses on the vehicle test result of the US fuel economy test cycles such as FTP75, HWY and US06 with Cooled HP-EGR system on gasoline direct injection(GDI) engine. In general, with EGR system, the mixing exhaust gas with clean air reduces the oxygen concentration in the cylinder charge and increase the heat capacity of the charge mixture. As a result, the combustion temperature drops which is known to improve knocking limit and fuel economy. In this study, 2.4 liters GDI production vehicle was reworked with electrical controlled EGR valve and high efficiency EGR cooler used in diesel serial production. The control algorithm of Cooled HP-EGR system was realized by model based development using SDA-iRPT(internal rapid prototyping) tool from Continental Automotive System. In experiment result, we confirmed that the spark timing was more advanced without knocking and manifold pressure was increased in all cases with EGR system. Furthermore, a positive potential of fuel economy improvement on FTP mode, US06 mode have been shown with EGR system but not for HWY mode where the engine load is quite low and the spark advance is already optimized. Consequently, the fuel economy was increased by maximum 3.3% on FTP mode, 2.7% on US06 mode and decreased by 0.3% on HWY mode respectively with EGR system.

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Abstract
1. 서론
2. 실험장치 및 방법
3. 실험
4. 결론
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UCI(KEPA) : I410-ECN-0101-2014-556-001323355