Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Feedforward EGR Control of a Passenger Car Diesel Engine Equipped with a DC Motor Type EGR Valve

DC 모터방식 EGR 밸브를 적용한 승용디젤엔진의 앞먹임 공기량 제어에 관한 연구

  • Oh, Byoung-Gl (Department of Automotive Engineering, Graduate School, Hanyang University) ;
  • Lee, Min-Kwang (Department of Automotive Engineering, Hanyang University) ;
  • Park, Yeong-Seop (Department of Automotive Engineering, Graduate School, Hanyang University) ;
  • Lee, Kang-Yoon (Department of Automotive Engineering, Hanyang University) ;
  • SunWoo, Myoung-Ho (Department of Automotive Engineering, Hanyang University) ;
  • Nam, Ki-Hoon (Advanced Diesel Engine Development Team, Hyundai-Kia Motor Company) ;
  • Cho, Sung-Hwan (Advanced Diesel Engine Development Team, Hyundai-Kia Motor Company)
  • 오병걸 (한양대학교 대학원 자동차공학과) ;
  • 이민광 (한양대학교 자동차공학과) ;
  • 박영섭 (한양대학교 대학원 자동차공학과) ;
  • 이강윤 (한양대학교 자동차공학과) ;
  • 선우명호 (한양대학교 자동차공학과) ;
  • 남기훈 (현대자동차 승용디젤엔진 개발실) ;
  • 조성환 (현대자동차 승용디젤엔진 개발실)
  • Received : 2010.03.22
  • Accepted : 2011.01.18
  • Published : 2011.09.01
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Abstract

In diesel engines, accurate EGR control is important due to its effect on nitrogen oxide and particulate matter emissions. Conventional EGR control system comprises a PI feedback controller for tracking target air mass flow and a feedforward controller for fast response. Physically, the EGR flow is affected by EGR valve lift and thermodynamic properties of the EGR path, such as pressures and temperatures. However, the conventional feedforward control output is indirectly derived from engine operating conditions, such as engine rotational speed and fuel injection quantity. Accordingly, the conventional feedforward control action counteracts the feedback controller in certain operating conditions. In order to improve this disadvantage, in this study, we proposed feedforward EGR control algorithm based on a physical model of the EGR system. The proposed EGR control strategy was validated with a 3.0 liter common rail direct injection diesel engine equipped with a DC motor type EGR valve.

Keywords

References

  1. H. Zhao, Advanced Direct Injection Combustion Engine Technologies and Development, Woodhead Publishing, Cambridge, pp.3-10, 2010.
  2. J. B. Heywood, Internal Combustion Engine Fundamentals, McGraw-Hill, New York, pp.491-493, 1988.
  3. M. Zheng, G. T. Reader and J. G. Hawley, "Diesel Engine Exhaust Gas Recirculation - A Review on Advanced and Novel Concepts," Energy Conversion and Management, Vol.45, pp.883-900, 2004. https://doi.org/10.1016/S0196-8904(03)00194-8
  4. Y. Ham and K. Chun, "Engine Cycle Simulation for the Effects of EGR on Combustion and Emissions in a DI Diesel Engine," Transactions of KSAE, Vol.10, No.4, pp.51-59, 2002.
  5. K. Chun, "EGR Technology," Auto Journal, KSAE, Vol.28, No.6, pp.46-51, 2006.
  6. Y. Daisho, N. Uchida, K. Morita, S. Shimogata and T. Saito, "Effects of Supercharging and EGR on Diesel Combustion and Emissions," International Symposium COMODIA 94, 1994.
  7. M. J. Van Nieuwstadt, I. V. Kolmanovsky, P. E. Moraal, A. Stefanopoulou and M. Jankovic, "EGR-VGT Control Schemes: Experimental Comparison for a High-speed Diesel Engine," IEEE Control Systems Magazine, Vol.20, pp.64-79, 2000.
  8. M. J. Van Nieuwstadt, I. V. Kolmanovsky, P. E. Moraal, A. Stefanopoulou and M. Jankovic, "EGR-VGT Control Schemes: Experimental Comparison for a High-speed Diesel Engine," IEEE Control Systems Magazine, Vol.20, pp.64-79, 2000.
  9. N. Chung, S. Kim and M. Sunwoo, "Nonlinear Dynamic Model of a Turbocharged Diesel Engine," SAE 2005-01-0017, 2005.
  10. E. Hendricks and S. C. Sorenson, "Mean Value Modelling of Spark Ignition Engines," SAE 900616, 1990.
  11. J. Sun, I. Kolmanovsky, J. A. Cook and J. H. Buckland, "Modeling and Control of Automotive Powertrain Systems: A Tutorial," American Control Conference, Vol.5, pp.3271-3283, 2005.
  12. O. Grondin, R. Stobart, H. Chafouk and J. Maquet, "Modelling the Compression Ignition Engine for Control: Review and Future Trends," SAE 2004-01-0423, 2004.
  13. H. Kim and S. Park, "A Study on the Characteristics of Linear Solenoid Type and DC Motor Type EGR Valve," Fall Conference Proceedings, KSAE, Vol.1, pp.397-403, 2006.
  14. P. Yoon and M. Sunwoo, "A Nonlinear Dynamic Engine Modeling for Controller Design," Transactions of KSAE, Vol.7, No.7, pp.167-180, 1999.