48 V MHEV NMC 배터리 전류-전압 예측을 위한 임피던스 기반 등가 회로 모델 개발Development of Impedance-based Equivalent Circuit Model to Predict Current-voltage Behavior f or 4 8 V MHEV NMC Battery
- Other Titles
- Development of Impedance-based Equivalent Circuit Model to Predict Current-voltage Behavior f or 4 8 V MHEV NMC Battery
- Authors
- 정명호; 전지환; 박성진
- Issue Date
- 2021
- Publisher
- 한국자동차공학회
- Keywords
- 등가 회로 모델; 리튬 배터리; 배터리 관리 시스템; 임피던스 특성; 임피던스 분광법; Equivalent circuit model; Lithium battery; Battery management system; Impedance characteristic; EIS
- Citation
- 한국자동차공학회 논문집, v.29, no.4, pp.337 - 348
- Journal Title
- 한국자동차공학회 논문집
- Volume
- 29
- Number
- 4
- Start Page
- 337
- End Page
- 348
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/15974
- DOI
- 10.7467/KSAE.2021.29.4.337
- ISSN
- 1225-6382
- Abstract
- A battery management system(BMS) is responsible for the safe operation of a lithium-ion battery pack in a mild hybrid electric vehicle(MHEV). One of the main functions of BMS is to supply the vehicle with the required power.
However, the available battery power is entirely dependent on the impedance characteristic of the battery that is affected by temperature, current, and state of charge(SOC). In this study, a battery pack model of the 48 V MHEV battery is developed in order to simulate the response of the battery under vehicle driving conditions. The model is developed based on hybrid pulse power characterization(HPPC) and electrochemical impedance spectroscopy(EIS) experiments over temperatures ranging from -20 oC to 25 oC. The current dependency of charge transfer resistance is considered in the battery model by including the Butler-Volmer equation. The 48 V battery pack model for the MHEV is developed based on the cell model, and it is used to validate the results of the MHEV tests.
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Collections - College of Engineering > Department of Mechanical and System Design Engineering > 1. Journal Articles
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