Fuel injection motorcycle engine model development

An engine dynamic model is established in this research based upon theoretic approach and supplement of acquired engine experiment data using a dynamometer setup. Experiment data are employed to obtain relations among throttle valve opening, inject fuel amount, ignition timing, air/fuel ratio, engine speed and generated torque using curve-fitting techniques. Consequently, air intake and generated engine torque subsystem models are developed for simulations using MATLAB/SimuLink tool. Hence, the developed model could be excised to investigate steady state as well as transient performances of certain engines. The long-term object of this research is to prototype motorcycle engine fuel injection systems and to improve the control strategy for the engines developed in Taiwan.