Patent ID: 6584431
Filing Date: 2003-06-24
Classification: F15B,G01R

Abstract:
Diagnostic and monitoring method relating to a plurality of identical actuators (E), characterized in that it includes the following stages:successively and separately feeding each of said plurality of identical actuators (E), from a given electric, pneumatic or hydraulic energy source (S), and in similar circuit conditions; measuring at a feed outlet of the energy source (S) the energy agent flow during the cycle for exciting each actuator (E); establishing for each actuator a reading or flow curve (c) measured according to the time; establishing a superposition from the set of all said curves (c), the superposition (T) obtained defining a track (Tâ€²) occupied by the largest number of said curves (c) and considered in this respect as a normality track; isolating the curves having deviations relating to said track (Tâ€²); and establishing an anomaly diagnostic of each isolated curve on the basis of the deviation(s) it has with said track (Tâ€²).