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(현대모비스) (현대모비스) (현대모비스) (현대모비스) (현대모비스) (현대모비스)
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한국자동차공학회 한국자동차공학회 추계학술대회 및 전시회 2018년 한국자동차공학회 추계학술대회 및 전시회
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    초록·키워드

    In recent years, high-voltage batteries of electric vehicles have been in the spotlight as high-efficiency cooling technology capable of coping with high cell heating as high output and large capacity are inevitable due to an increase in travel distance and shortening of rapid charge time. Battery cooling technology of next-generation electric vehicles is changing between indirect-refrigerant based cooling using water-glycol coolant as cooling fluid and direct-refrigerant cooling type. It is important to predict cooling performance and battery cell temperature distribution to develop new battery cooling system. In this paper, 1D analysis model based on thermal resistance network method was developed through EES(Engineering Equation Solver) and system cooling load, cell temperature distribution, and outlet condition of cooling fluid were confirmed. As a result, the error between test data and the analytical model was within 12% at maximum, and it was confirmed that direct-refrigerant cooling reaches target temperature compared to that of indirect cooling.

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      UCI(KEPA) : I410-ECN-0101-2019-556-000207138