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전기자동차용 납산, 리튬이온 구동축전지팩 성능특성 비교
차지훈(Jihun Cha),박용성(Yongsung Park),배중호(Joongho Bae),이광범(Kwangbum Lee),정혁(Hyuck Jung) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Successful commercialization of electric vehicle is depended on research and development level of traction battery being main component of Electric vehicle. Standard test procedure for Li-ion traction battery for performance, reliability and safety is under discussion in the standard of ISO-12405. This paper evaluated Energy-Capacity, Power and Energy efficiency at fast charging of Lead-acid and Li-ion battery pack in the view of ISO/DIS 12405-2. By the tests, This paper confirms the certain performance gap between commercialized Pb-acid and Li-ion traction battery pack. This performance gap would be caused by different material characteristic including chemical potential and internal resistance. The result of this paper could be applied to basic data when designing Battery Management System of traction battery pack. Also this paper evaluated the validity of test procedures of ISO/DIS 12405-2 by actual test.
자동차 안전기준 중 구동축전지 출력시험 개정을 위한 연구
차지훈(Jihun Cha),김경삼(Gyungsam Kim),정혁(Hyuk Jung),최동석(Dongseok Choi),이슬기(Seulki Lee),이광범(Kwangbum Lee),권해붕(Haeboung Kwon),용기중(Geejoong Yong) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
Increasing needs about how to evaluate maximum power of traction battery lead R&D of power test procedure for traction battery by supporting of MLTM(Ministry of Land, Transport and Maritime Affairs). To be adopted KMVSS, This power test procedure would be specific, possibly repeatable and anti-design-regulatable. As a first step for this R&D, other power test procedure for traction battery had been studied even though module level test procedure not a pack level. Traction battery"s dynamic power performance pattern had been also studied. On this paper, the power test procedure Ver. 1.0 developed by this R&D is evaluated by commercialized traction battery.
MPEG-4 LASeR 기반의 대화형 리치미디어 시스템
이인재(Injae Lee),차지훈(Jihun Cha),이한규(Hankyu Lee) 한국멀티미디어학회 2009 한국멀티미디어학회 학술발표논문집 Vol.2009 No.2
본 논문에서는 초경량 데이터 서비스 표준 기술인 MPEG-4 LASeR 를 기반으로 대화형 리치미디어 서비스를 제공하기 위한 전송 서버 및 플레이어를 설계하고 구현하였다. 그리고 실험결과를 통해 가능성을 보여 주었으며, 이는 향후 디지털 방송 및 IPTV 서비스 분야에 활용될 수 있을 것이다.