Section: Contracts and Grants with Industry
Accompanying contract with IFP (Institut Français du Pétrole), in the framework of the CIFRE PhD grant of Riccardo Ceccarelli (2007-2010). The goal sought with the Control Engine Dept. of IFP is the development of a model-based observer allowing to identify several types of engine failures. First year has been dedicated to system modeling with respect to leakage detection and estimation. In a first phase, leakage in intake receiver has been studied by the mean of two types of nonlinear adaptive observers. The observers have been tested on a AMEsim - Simulink co-simulation environment. For this first application, no differences come out from the use of this two observers. The second part of the work (current task) is dedicated to the design of a variable threshold in order to be less conservative and avoid false alarms. For this purpose we are investigating the possible causes (modeling and measurement error) whose effects drive leakage estimation away from the correct value.