A Study on Battery State of Health(SOH) Estimation Algorithm Using Real-time Electric Vehicles Data

Hyunjun Kim; Sungwook Park

doi:10.22680/kasa2025.17.1.048

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2025 Vol.17, Issue 1 Preview Page

A Study on Battery State of Health(SOH) Estimation Algorithm Using Real-time Electric Vehicles Data 실시간 전기자동차 주행 데이터를 이용한 배터리 건강상태(SOH) 추측 알고리즘 연구

31 March 2025. pp. 48-53

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Abstract

Recently, the number of electric vehicles has increased due to carbon reduction policies. As the number of electric vehicles registrations increases, research is being conducted to evaluate the batteries installed in electric vehicles. In this study, battery evaluation was performed using real-time driving data of electric vehicles. The RLS (Recursive Least Squares) algorithm and the DEKF (Double Extended Kalman Filter) algorithm were applied using MATLABTM, and BMS data and simulation data were compared for the battery SOC and SOH. As a result, the SOC error rate was confirmed to be less than 2.5% and SOH less than 5.0%. We plan to continuously improve the accuracy of the algorithm by collecting operating data for more than one year.

Keywords

Electric vehicle(전기자동차)

Battery(배터리)

BMS(배터리관리시스템)

SOH(배터리 잔존가치 수명률)

RLS(회귀최소자승법)

DEKF(이중확장칼만필터)

References

정재범, 2024, "전기차 사용후 배터리의 ESS 적용 기술 동향," 전기의 세계, 제73권, 제11호, pp. 7~13.

박시영, 2024, "급진적 기술의 도입과 확산 과정에 관한연구:전기자동차 사례를 중심으로," 기술혁신학회지, 제27권, 제5호, pp. 836~864.

10.35978/jktis.2024.10.27.5.835

여준석, 이승필, 2023, "미래폐기물 자원순환 생태계 활성화를 위한 정부지원방안-전기차 사용후 배터리를 중심으로," KISTEP InI, Vol. 43, pp. 123~125.

강일영, 김형진, 고용제, 박형민, 고현주, 장소현, 홍정현, 2022, "전기차 사용 후 배터리 잔존가치 평가방법 개선 시험 연구," 대한전기학회 학술대회 논문집, pp. 84~87.

L. Lu and Xx. Han, 2013, "A review on the key issues for lithium-ion battery management in electric vehicles," Journal of power sources, Vol. 226, pp. 272~228.

10.1016/j.jpowsour.2012.10.060

G. Welch and G. Bishop, 2001, "The Introduction to the Kalman Filter," Couse Note of University of North Carolina at Chapel Hill.

F. L. Lewis, L. Xied, and D. Popa, 2003, "Optimal and Robust Estimation with an Intruduction to Stochastic Control Theory," CRC Press.

R. E. Kalman and R. S. Busy, 1961, "New results in linear filtering and prediction theory," ASME Journal of Basic Engineering, Series D, Vol. 83, pp. 95~108.

10.1115/1.3658902

R. G. Brown and P. T. C. Hwang, 1985, "Introduction to Random Signals and Applied Kalman Filtering," John Wiley and Sons.

J. B. Burl, 1999, Linear Optimal Control, Addison Wesley Menlo Park, California.

F. L. Lewis and V. L. Syrmos, 1995, "Optimal Control, Second Edition," John Wiley and Sons, New York.

Information

Publisher :Korean Auto-vehicle Safety Association
Publisher(Ko) :한국자동차모빌리티안전학회
Journal Title :Journal of Auto-vehicle Safety Association
Journal Title(Ko) :자동차안전학회지
Volume : 17
No :1
Pages :48-53
Received Date : 2025-01-13
Revised Date : 2025-02-16
Accepted Date : 2025-02-21
DOI :https://doi.org/10.22680/kasa2025.17.1.048

Journal of Auto-vehicle Safety Association ISSN:2005-9396(Print) 자동차안전학회지

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