Journal of the Korean Electrochemical Society (전기화학회지)
- Volume 4 Issue 2
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- Pages.53-57
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- 2001
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- 1229-1935(pISSN)
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- 2288-9000(eISSN)
DOI QR Code
The Use of Computer Simulation in the Selfdischarge Evaluation of Ni/MH Battery for Electric Vehicle
전기자동차용 Ni/MH Battery의 자기방전율 평가를 위한 컴퓨터 시뮬레이션의 활용
- Jung Do Yang (Institute of Advanced Engineering, Powertrain Technology Lab.,) ;
- Kim Myung Gyu (Institute of Advanced Engineering, Powertrain Technology Lab.,) ;
- Park Seong Yong (Institute of Advanced Engineering, Powertrain Technology Lab.,) ;
- Kim Sun Wook (Ajou University, Department of Molecular Science and Technology)
- Published : 2001.05.01
Abstract
When an EV is parked for a long period time, the battery capacity naturally decreases due to selfdischarge. Therefore, this effect must be considered for the accurate measurement of the state of charge of EV battery. Battery selfdischarge simulations using the design of experiments among computer simulation methods are compared with experimental data for Ni/MH batteries for electric vehicles. The motivation is to predict the selfdischarge rate of the battery for electric vehicle at all temperature conditions and standing time when electric vehicle could be operated. We developed a general equation representing the seudischarge rate of the electric vehicle battery using design of experiments, and the equation is determined by temperature and standing time of the battery. We selected Ni/MH battery, 12 V-95 Ah, for pure electric vehicle for this study. ID develop the equation using design of experiments we selected temperature range of
전기자동차 운용시 빈번히 발생되는 차량의 주정차기간에 축전지는 자기방전을 일으켜 용량의 손실이 발생하게 된다. 따라서 전기자동차의 잔존용량을 정확히 측정하기 위해서는 자기방전에 의한 용량손실을 고려하여야 한다. 이 논문에서는 전기자동차 운용시 빈번히 발생할 것으로 예상되는 주정차기간에 대해 포괄적으로 적용할 수 있는 Ni/MH Battery의 자기방전율을 나타내는 일반식을 전산모사 방법 중 하나인 실험계획법을 이용하여 구하였으며 이를 시험데이터와 비교하였다. 실험계획법을 위한 온도영역으로는 전기자동차가 운용되는
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