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최두원(Duwon Choi),강혜현(Hyehyun Kang),박진일(Jinil Park),이종화(Jonghwa Lee),박경석(Kyuongseok Park) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
Lean burn and High EGR of gasoline engine are decreasing Pumping loss, and these are part of improving fuel economy. However, Lean Burn And High EGR has problem of misfire, it requires a high-energy ignition system. In this study, we are trying to study the ignition system for high-energy Plasma Ignition System.
최두원(Duwon Choi),박진일(Jinil Park),이종화(Jongwha Lee) 대한설비공학회 2018 설비공학 논문집 Vol.30 No.9
Vehicle thermal management system (VTMS) is one of the promising technologies for responding to stricter CO₂ regulation. VTMS substitutes some mechanical parts for electronic parts and requires an electronic control system. Therefore, gaining an understanding of the cooling system of the vehicle is becoming more and more important for optimal control. This study focused on cooling system modeling for predicting the behavior of coolant, engine oil and transmission oil. Cooling system was modeled mathematically and experiments on some parts of the cooling system, including radiator, transmission oil warmer and thermostat were carried out in order to find out modeling coefficients. Simulation results were compared with experiment data and good agreement was revealed. It is proposed that the present work can be applied for model-based VTMS control.