This document shows the modeling and simulation of the Delphi E3 Electronic Unit Injector (EUI) mounted in the new Volvo Powertrain engine environment. The development is based on a 1D lumped parameter approach, which has been performed in the LMS Imagine.Lab AMESim environment considering standard libraries for the mechanical, hydraulic and control parts.
This technical paper describes some applications where this model has been used, such as the optimization of cam profile for a better control of pilot and post injections, influence on flow rate with abrasive flow honed nozzle spray holes, needle response phenomena understanding, prediction of pressure drops within the injector and evaluation of the difference between measured and physical values. These effective applications show the full integration of the modelling work in the design process which is a real contribution in the understanding and the optimization of injection system features and its engine environment design.
Solution: Internal Combustion Engine Related Hydraulics
