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모델링에 기반한 전기자동차 배터리 열관리 시스템의 영향
최종우(Jongwoo Choi),조구영(Gooyoung Cho),박준호(Joonho Park),임재환(Jaehwan Lim),정하철(Hachul Jeong),차석원(Suk-Won Cha) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
In this paper, effects of battery thermal management system was simulated. As increasing needs of HEV and EV, keeping battery temperature to their optimum condition is now one of the most important topics in battery research area. Battery thermal management system helps to keep optimum temperature condition by controlling cooling and heating system. However, it needs electrical power to work, which directly decreases SOC of the battery. Thus, battery thermal management system has both positive and negative effect to the HEV and the EV. To show these effects, battery thermal management system model was made and simulated. Modeling and simulation were done by using Autonomie<SUP>®</SUP> and MATLAB<SUP>®</SUP>.
주행 중 전기자동차 리튬 이온 배터리의 용량 감소 시뮬레이션
최종우(Jongwoo Choi),박준호(Joonho Park),조구영(Gooyoung Cho),이대흥(Daeheung Lee),차석원(Suk-Won Cha) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
In this paper, li-ion battery capacity fade model was simulated. SEI film formation was chosen for the capacity fade mechanism due to possibility and simplicity of modeling. Newman"s general battery model was developed to simulate interior changes of the battery. Half C-rate discharging and charging with constant voltage charging were tested. More than 100 cycles were tested with the temperature change effect. Result show that the capacity of a battery decreases with the operating time. Increasing temperature also effects a lot to the capacity fade.