Energy based model of a common rail injector

In order to develop a precise control of the fuel injection in diesel engines as a means to reduce noise and fuel consumption, while improving torque and power performances, a model of the fuel injection system is required. This paper proposes a simple energy-based model of a common rail injector, one of the most complex and important part of the injection system. The injector model has been validated comparing some simulation results with real experimental data. A complete model of the whole common rail injection system is also proposed as a basis for the development of the diesel engines control strategies.