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[가솔린엔진부문] 가솔린 엔진의 비정상상태에 대한 Map 구성과 공기 및 연료 모델 개선
심연섭(Yonsob Shim),강태성(Taeseong Kang),강승표(Seungpyo Kang),고상근(Sang Ken Kauh) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
For gasoline engines, a three-way catalyst converter is being used for cleaning up the exhaust gas contamination. Precise air/fuel ratio control is necessary to maximize the catalytic conversion efficiency. In transient condition, feedforward air/fuel ratio control that estimates air mass inducted into the cylinder is performed.<br/> In this study, a fuel injection map that makes accurate air/fuel ratio control possible was constructed for the very same transient condition. In the same condition above, intake air model and fuel model were refined so that fuel injection values based on air mass flow through throttle valve and intake manifold pressure are equal to fuel injection values of the map.<br/>