Earticle

초록

영어

This study analyzed the dynamic thermal loss characteristics of the high-voltage battery in a series-parallel hybrid vehicle based on the FTP-75 driving cycle. A series-parallel hybrid powertrain model was constructed using MATLAB/Simulink R2025b, and the conditions of a 1,575 kg vehicle weight, a NiMH high-voltage battery(201.6[V], 6.5[Ah]), and an initial SOC of 60[%] were applied. The battery's thermal loss was calculated based on the electrical loss resulting from the charge/discharge current and internal resistance. The simulation results showed that the thermal loss of the high-voltage battery varied significantly over time during the acceleration, deceleration, and regenerative braking phases of the FTP-75 cycle, with a maximum instantaneous thermal loss of approximately 0.15–0.18[kW]. In contrast, during extended idle(stop) periods, the battery's thermal loss decreased to a level near zero. These results demonstrate that the thermal load of a hybrid vehicle's battery is closely related not only to the average energy consumption but also to the instantaneous current fluctuations that occur under actual driving conditions.

목차

Abstract
1. 서론
2. 실험방법 및 설계
2.1 선행연구
2.2 실험 조건
2.3 해석 방법
3. 결과 및 고찰
3.1 고전압 배터리의 동적 열손실
3.2 가속 및 감속에 따른 열손실 특성
3.3 회생제동에 따른 열손실
3.4 Hot Soak 구간의 배터리 열손실
3.5 주행조건에 따른 배터리 열손실 비교
3.6 열손실 누적에 따른 부품의 열화 및 임계 한계점
3.7 시뮬레이션 검증 방법
4. 결론
References

키워드

저자

• 이세연 [ Seiyeon Lee | Member, Hanyang University, Dept of Mechanical and Plant Engineering, Graduate School of Engineering. ]
• 전유재 [ Yujae Jeon | Member, Yeoju Institute of Technology, Dept. of Interdisciplinary Studies. ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620