Modelling HEUI injector In MATLAB Simulink

The present work describes the development and partial validation of a mathematical model of a hydraulically actuated electronically controlled unit injector (HEUI). The HEUI analyses include submodels of the solenoid, hydraulic differential valve (HDV), intensifier and injector subsystems. It has been implemented using the MATLAB/SIMULINK graphical software environment. The modeled HEUI is a compact, flexible diesel injector developed at the University of New South Wales in conjunction with local industry. The work undertaken is part of a wider study aimed at optimization of the design of the HEUI for dual-fuel systems.