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송해박(Hailbak Song),유정철(JengcheoI Yoo),이종화(Jooghwa Lee),유재석(Jaisuk Yoo),박경석(Kyungseok Park),황준하(Joonha Hwang),박승도(Seungdo Park) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_2
A simulation study was carried to analyze the vehicle fuel consumption on component basis. Experiments was also carried out to identify the simulation results, under FTP-75 Hot Phase driving conditions and arbitrary driving conditions. A good quantitative agreement was obtained.<br/> Based on the simulation, fuel energy was used in pumping loss(3.7%), electric power generation(O.7%), engine friction(l2.7%), engine inertia(O.7%), torque converter loss(4.6%), drivetrain friction(O.6%), road-load(9.2%). and vehicle inertia(I3.4%) under FTP-75 Hot Phase driving conditions.<br/> Using simulation program, the effects of capacity factor and idle speed on fuel consumption were estimated. A increment of capacity factor of torque converter resulted in fuel consumption improvement under FTP-75 Hot Phase driving conditions. Effect of a decrement of idle speed on fuel consumption was negligible under the identical driving conditions.