Original scientific paper
https://doi.org/10.30765/er.1475
Simplified methodology for testing common rail piezoelectric injectors taking into account reference characteristics
Tomasz Stoeck
orcid.org/0000-0002-4286-2747
; 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
orcid.org/0000-0002-3321-7754
; Department of Automotive Engineering, Faculty of Mechanical Engineering and Mechatronics, The West Pomeranian University of Technology, Piastów 19 Ave., 70-310 Szczecin, Poland
Abstract
The article presents the methodology of testing Continental/Siemens VDO piezoelectric injectors. 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. Automation of the calculation process was obtained thanks to the proprietary numerical algorithm, whose formulas were introduced into a standard spreadsheet.
Keywords
piezoelectric injector; fuel dosage; reference characteristics; polynomial interpolation; Aitken triangular matrix
Hrčak ID:
264204
URI
Publication date:
24.11.2021.
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