Commande floue d'une boucle de séchage

We present in this paper, a fuzzy controller elaborated and tested on an experimental drying process. This loop was controlled by PID controllers on temperature and humidity, which were difficult to set, due to the strong interdependence of these two variables. The two controllers have been interconnected by a fuzzy controller established for the temperature and the humidity, taking into account simultaneously the variations and the variation directions of these parameters. The so obtained control is fast and stable.