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논문 상세정보

직분식 커먼레일 디젤엔진의 피에조 인젝터와 솔레노이드 인젝터의 연료분사율 추정

A Study on the Injection Rate Observer of the Piezo-actuated and Solenoid-operated Injectors for CRDI Diesel Engines

Abstract

Fuel injection system greatly affects the performance of a direct injection diesel engine. A common rail injection system was introduced to satisfy the stringent emission standards, low fuel consumption, and low noise in recent years. The performance of a common-rail fuel injection system is strongly influenced by the injector characteristics. The common rail injector has evolved in order to improve its injection performance. The piezo-actuated injector is more suitable for common rail injection system due to its fast response and is expected to replace current solenoid-operated injector. In this study, nonlinear mathematical models are proposed for the solenoid-operated and the piezo-actuated injectors for control applications. Based on these models, the injection rate, which is one of the most important factors for the injection characteristics, is estimated using sliding mode observer. The simulation results and the experimental data show that the proposed sliding mode observers can effectively estimate the injection timing and the injection rate for both common-rail injectors.

참고문헌 (13)

  1. Guerrassi, N. and Dupraz, P., 'A common rail injection system for high speed direct injection diesel engines,' SAE Paper 980803, 1998 
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  3. Adriaens, H. J. M. T. S., de Koning, W. L. and Banning, R., 'Modeling Piezoelectric Actuators,' IEEE/ASME Trans. on Mechatronics, Vol. 5, Issue 4, pp. 331-341, 2000 
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  5. Slotine, J. E., Hedrick, J. K. and Misawa, E. A., 'On Sliding Observer for Nonlinear Systems,' Trans. AS ME, Journal of Dynamic Systems, Measurement, and Control, Vol. 109, No.3, pp. 245252, 1987 
  6. Streeter, V. L. and Wylie, E. B., 'Fluid Mechanics,' McGraw-Hili, 1979 
  7. Nam, K., Park, S. and Sunwoo, M., 'Dynamic Model of an HSDI Common-rail Injector and Injection Rate Estimation,' Transactions of KSAE, Vol.11, No.5, pp. 43-49,2003 
  8. Nam, K., Yoon, M., Park, S. and Sunwoo, M., 'Development of a Sensorless Estimation Algorithm of the Injection Timing and Rate for an HSDI Common-Rail Injector,' JSME International Journal Series C, Vol. 47, No.3, pp. 882-888, 2004 
  9. Misawa, E. A. and Hedrick, J. K., 'Nonlinear Observers - A State-of-the-Art Survey,' Trans. ASME, Journal of Dynamic Systems, Measurement, and Control, Vol.111, No.3, pp. 344-351, 1989 
  10. Boehner, W. and Hummel, K., 'Common rail injection system for commercial diesel vehicles,' SAE Paper 970345, 1997 
  11. Baranowski, D., Klugl, W. and Schoppe, D., 'Simulation and Design Optimization of a Common Rail Piezo Injector for Passenger Car DI Diesel Engines,' Fuel Injection Systems, pp. 219-232, 1999 
  12. Jalili, N., Wagner, J. and Dadfarnia, M., 'A Piezoelectric Driven Ratchet Actuator Mechanism with Application to Automotive Engine Valves,' Mechatronics, Vol. 13, No.8, pp. 933-956, 2003 
  13. Stumpp, G and Ricco, M., 'Common rail - an attractive fuel injection system for passenger car DI diesel engines,' SAE Paper 960870, 1996 

이 논문을 인용한 문헌 (2)

  1. Oh, Byoung-Gul ; Oh, Seung-Suk ; Park, Yeong-Seop ; Lee, Kang-Yoon ; SunWoo, Myoung-Ho 2009. "A Study on the Piezo Injector Control Algorithm for CRDI Diesel Engines" 한국정밀공학회지 = Journal of the Korean Society of Precision Engineering, 26(2): 54~62 
  2. Kim, Sang-Am ; Wang, Woo-Gyeong ; Kim, On 2013. "The Fabrication and Trial Performance of Injector Driver for CRDI" 한국동력기계공학회지 = Journal of the korean society for power system engineering, 17(2): 38~45 

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