Abstract
This paper study the influence of parameters in the electronic control unit ECU on the functional optimization of a compression ignition engine fuelled with biofuels in various concentrations by computer simulation.
To obtain this objective a model in the AVL Boost software for a single cylinder engine has been made, was implemented an element ECU with fuel injection control by loading the input maps on each drive channel. Following the computer simulations was studying the optimization of fuel injection by ECU parameters to obtain the same results from the combustion process for each type of biofuel use.
Engine performance was evaluated based on the quantity of heat released obtained from the combustion process in the cylinder, comparing the properties of mixtures of fuels used in the simulation. To increase the quantity of heat released from the combustion process was commissioned by ECU parameters increasing the quantity of fuel injected with increasing the bio component quantity by enlarging the injection time.
Keywords: electronic control unit, rate of heat release, cylinder pressure, starts of injection, computer simulation.