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자료유형
학술저널
저자정보
양승무 (제주대) 김동완 (제주대) 김일환 (제주대)
저널정보
전력전자학회 전력전자학회논문지 전력전자학회 논문지 제24권 제3호
발행연도
2019.6
수록면
139 - 146 (8page)

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As the number of electric vehicles (EVs) in Jejudo Island increases, the secondary use of EV batteries is becoming increasingly mandatory not only in reducing greenhouse gas emissions but also in promoting resource conservation. For the secondary use of EV batteries, their capacity and performance at the end of automotive service should be evaluated properly. In this study, the battery state information from the on-board diagnostics or OBD2 port was acquired in real time while driving three distinct routes in Jejudo Island, and then the battery operating characteristics were assessed with the driving routes. The route with higher altitude led to higher current output, i.e., higher C-rate, which would reportedly deteriorate state of health (SOH) faster. In addition, the SOH obtained from the battery management system (BMS) of a 2017 Kia Soul EV with a mileage of 55,000 km was 100.2%, which was unexpectedly high. This finding was confirmed by the SOH estimation based on the ratio of the current integral to the change in state of charge. The SOH larger than 100% can be attributed to the rated capacity that was lower than the nominal capacity in EV application. Therefore, considering the driving environment and understanding the SOH estimation process will be beneficial and necessary in evaluating the capacity and performance of retired batteries for post-vehicle applications.

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Abstract
1. 서론
2. 전기차 주행 실험
3. 주행 데이터에 의한 SOH 추정
4. 결론
References

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UCI(KEPA) : I410-ECN-0101-2019-560-000681918