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하이브리드 철도차량용 주행 성능 시뮬레이터에 관한 연구
임원식(Wonsik Lim),정춘화(Chunhua Zheng),신창우(Chang Woo Shin) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
HEV(Hybrid Electrical Vehicle)s are considered as one of the next generation vehicles. To develop the HEV, there must be a reliable simulator, by which the capacities of the power sources are tested, and the parameters of the HEV are optimized before developing the real model of the HEVs. This process can save money for designing the HEV system and improve the system without experiments. Nowadays, traction of railway vehicles is usually provided by diesel fuel combustion. Hybridization offers the potential to achieve a step change in energy efficiency and we also need to develop simulators for performance test of hybrid railway vehicles. In this paper, the type of hybrid drive system is introduced, the characteristics of railway series hybrid system are compared with those of series hybrid vehicle system. A couple of simulators for performance test of HEV are introduced, the idea of constructing railway series hybrid system simulator using MATLAB SIMDRIVELINE is also introduced.
멀티모드 하이브리드 차량용 건식클러치의 자동화 메카니즘 분석
유민우(Minwoo Ryu),임원식(Wonsik Lim),남궁철(Koongchoul Nam),김수현(Soohyun Kim) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
Due to the increase of oil price, the needs of the reduction of the fuel cost is rising. Therefore, necessity of hybrid vehicle that runs with engine and the electric motor is on the rise. Hybrid vehicles have been developed into various ways including serial type, parallel type, power split type. In this research, multi mode hybrid power train system, which can implement more than two modes, is used as subject. Especially, automation mechanism of dry type clutch, that exist between engine and power split gear train, is analyzed in detail.