Research into pressure wave correction of fuel quantity fluctuation for CRS with piezo-actuated injector

Xiao Liang Ding*, You Tong Zhang, Hai Feng Su

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

In order to solve the periodic fluctuation of fuel quantity of the succeeding injection during the multiple-injection for common rail injection system with piezo-actuated injector, which was caused by the pressure fluctuation due to the water-hammer effect generated by the closure of the needle valve during the preceding injection, a pressure wave correction control strategy on the basis of lumped parameter model is designed and implemented. The strategy adopts a sum of a plurality of periodic function to model the property of fuel quantity fluctuation. The correction is accomplished by adjusting the injection parameters of the succeeding injection. The results show that the calculation data based on established model has a good agreement with the experimental data and the fuel quantity fluctuation decreases considerably with a good consistency of the succeeding injection.

Original languageEnglish
Pages (from-to)1037-1041
Number of pages5
JournalBeijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume30
Issue number9
Publication statusPublished - Sept 2010

Keywords

  • Lumped parameter model
  • Piezo-actuated CRS
  • Pressure wave correction

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