Simplified methodology for testing common rail piezoelectric injectors taking into account reference characteristics

Authors

  • Tomasz Stoeck Department of Automotive Engineering, Faculty of Mechanical Engineering and Mechatronics, The West Pomeranian University of Technology, Piastów 19 Ave., 70-310 Szczecin, Poland
  • Karol Franciszek Abramek Department of Automotive Engineering, Faculty of Mechanical Engineering and Mechatronics, The West Pomeranian University of Technology, Piastów 19 Ave., 70-310 Szczecin, Poland
  • Tomasz Osipowicz Department of Automotive Engineering, Faculty of Mechanical Engineering and Mechatronics, The West Pomeranian University of Technology, Piastów 19 Ave., 70-310 Szczecin, Poland

Keywords:

piezoelectric injector, fuel dosage, reference characteristics, polynomial interpolation, Aitken triangular matrix

Abstract

The article presents the methodology of testing piezoelectric injectors from Continental/Siemens VDO. To determine the correctness of their operation, the reference characteristics were used, which, due to the lack of guidelines from the manufacturer, constituted the only reference base for the obtained expenses and the intensity of fuel overflows. Simultaneously, the phase of the active experiment was simplified by limiting the number of measuring points, and then estimating the missing data using the Aitken iterative technique. The automation of the calculation process was obtained thanks to the proprietary numerical algorithm, whose formulas were introduced into a standard spreadsheet.

Author Biography

Tomasz Stoeck, Department of Automotive Engineering, Faculty of Mechanical Engineering and Mechatronics, The West Pomeranian University of Technology, Piastów 19 Ave., 70-310 Szczecin, Poland

DEng., The Department of Automotive Engineering, assistant professor

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Published

2021-11-25

Issue

Engineering Review, Vol. 41, No. 2

Section

Articles

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