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조윤호(Y.H.Cho),김영흡(Y.H.Kim) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_1
The Continuously variable transmission(CVT) has better fuel economy and acceleration performance than the limited step transmissions because it can infinitely change speed ratio within the ratio coverage. To get good performance in CVT. the optimal operating line of engine should be determined as the basic information for the line pressure control and the speed ratio control. In this study, the optimal operating points of engine are determined on the basis of the engine characteristic curve and tractive effort curve. And the operating line, speed ratio map and engine speed map are calculated for the economy mode and the power mode by simulation.<br/>