Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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A Computer Simulation of Injection Rate Characteristics of Solenoid Type Common Rail Injector According to Injector Driving Current Patterns

인젝터 구동 전류 패턴 변화가 솔레노이드 타입 커먼레일 인젝터 분사율 특성에 미치는 영향에 대한 컴퓨터시뮬레이션

  • 이충훈 (서울과학기술대학교 기계자동차공학과)
  • Received : 2019.03.27
  • Accepted : 2019.06.02
  • Published : 2019.09.30
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Abstract

The effect of injector driving current pattern on fuel injection rate of solenoid diesel common rail injector was studied by computer simulation. The time resolved fuel injection rate and injected quantity per stroke of a common rail injector driven with the five current patterns were computer simulated. The fuel injection rate and injected quantity per stroke according to the rail pressure and fuel injection period were also computer simulated. When the common rail injector was driven with the five driving current patterns of peak & hold, there was no difference in the fuel injection rate in the peak section regardless of all the current patterns of the five cases. On the other hand, the magnitude of the hold current value influenced the injection rate and injected quantity per stroke. That is, in the current pattern of three cases where the hold current value is equal to or more than a constant value of the peak current value, the fuel injection rates for the given common rail rail pressure and injection period are same one another. On the other hand, the current pattern of the two cases, in which the hold current value is smaller than a certain value, there is a large fluctuation in the fuel injection rate.

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References

  1. M. S. Graham, S. Crossley, T. Harcombe, N. Keeler and T. Williams, "Beyond Euro VI - Development of A Next Generation Fuel Injector for Commercial Vehicles", SAE paper No. 2014-01-1435, 2014.
  2. S. Matsumoto, C. Klose, J. Schneider, N. Nakane, D. Ueda and S. Kondo, "4th Generation Diesel Common Rail System: Realizing Ideal Structure Function for Diesel Engine", SAE paper No. 2013-01-1590, 2013.
  3. V. Macian, R. Payri, S. Ruiz, M. Bardi and A. H. Plazas, "Experimental study of the relationship between injection rate shape and Diesel ignition using a novel piezo-actuated direct-acting injector", Applied Energy, Vol. 118, 2017, pp. 100-113. https://doi.org/10.1016/j.apenergy.2013.12.025
  4. Brian Fisher and Charles Mueller, "Effects of Injection Pressure, Injection-Rate Shape, and Heat Release on Liquid Length", SAE paper No. 2012-01-0463, 2012.
  5. A. Vanegas, H. Won, C. Felsch, M. Gauding, N. Peters, "Experimental investigation of the effect of multiple injections on pollutant formation in a common-rail DI diesel engine", SAE paper No. 2008-01-1191, 2008.
  6. R. Matsui, K. Shimoyama, S. Nonaka, I. Chiba, S. Hidaka, "Development of high-performance diesel engine compliant with Euro-V", SAE paper No. 2008-01-1198, 2008.
  7. S. Shundoh, M. Komori, K. Tsujimura, S. Kobayashi, "NOx Reduction from Diesel Combustion Using Pilot Injection with High Pressure Fuel Injection", SAE Technical Paper No. 920461, 1992.
  8. System S. Brusca, A. Giuffrida and R. Lanzafame G. E. Corcione,"Theoretical and Experimental Analysis of Diesel Sprays behavior from Multiple Injections Common Rail System, SAE paper No.2002-01-2777, 2002.
  9. Haifeng Lu, Jun Deng, Zongjie Hu, Zhijun Wu, and Liguang Li, "Impact of Control Methods on Dynamic Characteristic of High Speed Solenoid Injectors", SAE paper No. 2014-01-1445, 2014.
  10. Jinwook Lee and Kyoungdoug Min Kernyong Kang Choongsik Bae, "Hydraulic Simulation and Experimental Analysis of Needle Response and Controlled Injection Rate Shape Characteristics in a Piezo-driven Diesel Injector", SAE paper No. 2006-01-1119, 2006.
  11. Y. J. Lee and C. H. Lee, Development of Diesel Piezo Injector Driver Using Microcontrollers, JAES, Vol. 13, No. 18, pp. 4860-4865, 2018.
  12. http://europe.autonews.com/article/20061113/ANE/61109031/injector-wars:-piezo-vs.-solenoid
  13. http://www.china-balin.com/news-248.html
  14. W. Bosch, "The Fuel Rate Indicator: A New Measuring Instrument for Display of the Characteristics of Individual Injection", SAE Paper No. 660749, 1966.
  15. W. Zeuch, Neue Verfahren zur Messung des Einspritzgesetzes und Einspritz-Regelmassigkeit von Diesel-Einspritz-pumpen, MZT, Jahr. 22 Heft 9, 1961.
  16. R. Payri, F. J. Salvador, P. Marti-Aldaravi and J. Martinez-Lopez, "Using one-dimensional modeling to analyse the influence of the use of biodiesels on the dynamic behavior of solenoid-operated injectors in common rail systems: Detailed injection system model", Energy Conversion and Management, Vol. 54, 2012, pp. 90-99. https://doi.org/10.1016/j.enconman.2011.10.004
  17. Y. J. Lee and C. H. Lee, "An uncertainty analysis of the time-resolved fuel injection pressure wave based on BOSCH method for a common rail diesel injector with a varying current wave pattern", Journal of Mechanical Science and Technology, Vol. 32, No. 12, 2018, pp. 5937-5945. https://doi.org/10.1007/s12206-018-1145-1
  18. T. Kim and C. H. Lee, "A Study on Characteristics of Injected fuel pressure waves of a solenoid type injector diesel common rail injector with controlling current wave for driving the injector", ILASS-KOREA, Vol. 21, No. 3, 2016, pp. 155-161. https://doi.org/10.15435/JILASSKR.2016.21.3.155
  19. GT-Suite v2016 example, BOSCH_SolenoidInjector_Payri_et_al.gtm, 2016.
  20. LMS Imagine. Lab AMESim v.8, User's manual; 2010.