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논문 상세정보

가솔린 균일 예혼합 압축착화 엔진의 착화시점 검출

Start of Combustion Detection Method for Gasoline Homogeneous Charge Compression Ignition Engine

Abstract

Gasoline Homogeneous Charge Compression Ignition (HCCI) combustion is a new combustion concept. Unlike the conventional internal combustion engine, the premixed fuel mixture with high residual gas rate is auto-ignited and burned without flame propagation. There are several operating factors which affect HCCI combustion such as start of combustion (SOC), residual gas fraction, engine rpm, etc. Among these factors SOC is a critical factor in the combustion because it affects exhaust gas emissions, engine power, fuel economy and combustion characteristics. Therefore SOC of gasoline HCCI should be controlled precisely, and SOC detection should be preceded SOC control. This paper presents a control oriented SOC detection method using 50 percent normalized difference pressure. Normalized difference pressure is defined as the normalized value of difference pressure and difference pressure is difference between the in-cylinder firing pressure and the motoring pressure. These methods were verified through the HCCI combustion experiments. The SOC detection method using difference pressure provides a fast and precise SOC detection.

참고문헌 (14)

  1. F. Zhao, T. W. Asmus, D. N. Assanis, J. E. Dec, J. A. Eng and P. M. Najt, "Homogeneous Charge Compression Ignition (HCCI) Engines," SAE, PT-94, p.3, 2003 
  2. H. Zhao, K. Li, T. Ma and N. Ladommatos, "Performance and Analysis of a 4-Stroke Multi- Cylinder Gasoline Engine with HCCI Combustion," SAE 2002-01-0420, 2002 
  3. K. Swan, M. Shahbajhti and C. R. Koch, "Predicting Start of Combustion Using a Modified Knock Integral Method for an HCCI Engine," SAE 2006-01-1086, 2006 
  4. R. Standing, N. Kalian, T. Ma and H. Zhao, "Effect of Injection Timing and Valve Timings on CAI Operation in a Multi-Cylinder DI Gasoline Engnie," SAE 2005-01-0132, 2005 
  5. K. Shin, K. Kwon, W. Lee and H. Kim, "Study on the Improvement in Fuel Economy of the Controlled Auto Ignition Engine with Mechanical Variable Valvetrain," Fall Conference Proceedings, Vol.I, KSAE, pp.36-41, 2006 
  6. A. Iijima, K. Yoshida, H. Shoji and J. T. Lee, "Analysis of HCCI Combustion Characteristics based on Experimentation and Simulationinfluence of Fuel Octane Number andInternal EGR on Combustion," Int. J. Automotive Technology, Vol.8, No.2, pp.137-147, 2007 
  7. M. B. Young, "Cyclic Dispersion - Some Quantitative Cause - and - Effect Relationships Sensors," SAE 800459, 1980 
  8. J. Qin, H. Xie, Y. Zhang and H. Zhao, "A Combustion Heat Release Correlation for CAI Combustion Simulation in 4-Stroke Gasoline Engines," SAE 2005-01-0183, 2005 
  9. J. C. Livengood and P. C. Wu, "Correlation of Autoignition Phenomena in Internal Combustion Engines and Rapid Compression Machines," Fifth Symposium (International) on Combustion, 1955. 
  10. G. M. Shaver, J. C. Gerdes, M. J. Roelle, P. A. Caton and C. F. Edwards, "Dynamic Modeling of Residual-Affected Homogeneous charge Compression Ignition Engines with Variable Valve Actuation," Transations of the ASME, 2005 
  11. G. M. Shaver, J. C. Gerdes, P. Jain, P. A. Caton and C. F. Edwards, "Modeling for Control of HCCI Engines," IEEE Preceedings of the American Control Conference, 2003 
  12. G. M. Shaver, M. J. Roelle and J. Christian Gerdes, "Modeling Cycle-to-cycle Dynamics and Mode Transition in HCCI Engines with Variable Valve Actuation," Science Direct, 2005 
  13. K. Y. Lee, "Closed-loop Control of SOC for Common-Rail Direct injection Diesel Engines," Department of Automotive Engineering, Hanyang University, Ph. D. Dissertation, 2005 
  14. M. Yoon, "Real-time Simulation and Control of Common-Rail Direct Injection Diesel Engines," Hanyang University, Ph. D. Dissertation, 2006 

이 논문을 인용한 문헌 (1)

  1. 2011. "" International journal of automotive technology, 12(5): 645~652 

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