Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Optimization of Battery Power Distribution to Improve Fuel Consumption of Fuel Cell Hybrid Vehicle

연료전지 하이브리드 차량의 연비향상을 위한 배터리 동력분배 최적화

  • Lee, Dong Sup (Dept. of Mechanical and Biomedical Engineering, Graduate School Kangwon Nat'l Univ.)
  • Received : 2012.09.14
  • Accepted : 2012.10.05
  • Published : 2013.03.01
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Abstract

The demand for eco-friendly and higher fuel economy vehicles has helped develop eco-friendly and fuel-efficient vehicles such as hybrid vehicles. In a hybrid vehicle, the change in the battery charge after driving should be added to the fuel consumption as the equivalent fuel usage based on its own characteristics. Thus, the fuel efficiency of a hybrid vehicle cannot be improved simply by increasing the battery capacity. In this study, I attempt to improve the total fuel economy of a hybrid vehicle, including the equivalent fuel consumption, by modeling a fuel cell hybrid vehicle using Matlab Simulink, analyzing the usage zone of the fuel cell with the existing control strategy, and optimizing the power distribution of the battery and fuel cell in the main usage zone of the fuel cell.

친환경 및 연비에 대한 요구와 제한은 하이브리드 차량과 같은 친환경 고연비 차량기술을 발전시켜왔다. 하이브리드 차량의 연비는 시스템의 특성으로 인해 주행 후 배터리 충전량의 변화를 연비에 반영시키는 등가연료사용량이 연료소비량에 추가되므로 제어전략에서 배터리 사용영역 증가만으로 연비를 향상시킬 수 없었다. 본 논문은 연료전지 하이브리드 차량을 matlab simulink상에서 모델링하고 기존제어전략에서 연료전지의 사용구간을 분석하여 연료전지 주 사용영역에서의 배터리와 연료전지 간 동력분배를 연비향상을 목표로 최적화하여 등가연료사용량을 포함한 총연비의 향상을 시도하였다.

Keywords

References

  1. Lee, G. S., 2009, "Strategic Analysis for Environmental Friendly Vehicle Development," KSAE09-W0105 2009 Electric Vehicle Special Workshop, pp. 7-11.
  2. Park, C. H., 2003, "Development of Fuel Cell Hybrid Electric Vehicle Performance Simulator and Control Strategy," Sungkyunkwan University.
  3. Jeong, J. R., Lee, D. H., Shin, C. W., Lim, W. S., Park, Y. G. and Cha, S. W., 2010, "Study on Battery Sizing of a Heavy-Duty Hybrid System Using Optimal Control Method," KSAE10-B0296 KSAE 2010 conference.
  4. Oh, K. C., Choi, D. H. and Kim, H, S., 2004, "Optimization of Control Strategy and Power Source for a Parallel Hybrid Electric Vehicle," KSAE04-L0037 KSAE 2004 Electric Vehicle Workshop & Symposium.
  5. Kook, K. P., Oh, K. C. and Kim, H. S., 2005, "A Study on Optimization of ESU Sizing for a Fuelcell Hybrid Electronic Vehicle," KSAE05-S0078 KSAE 2005 conference, pp. 495-500.
  6. Zheng, C. H., Park, Y. I., Lim, W. S. and Cha, S. W., 2012 "Optimal Control of Fuel Cell Hybrid Vehicles," KSAE, Vol. 20, No. 2, pp.135-140. https://doi.org/10.7467/KSAE.2012.20.2.135
  7. Oh, G. G., 2011, "The Present State of Battery Development," KSAEWP_20110825 KSAE EDV Workshop, pp. 131-144.

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