Title :
On condition monitoring of pump pressure in a hydraulic servo-drive system
Author :
Tan, Hong-Zhou ; Sepehri, Nariman
Author_Institution :
Dept. of Mech. & Ind. Eng., Manitoba Univ., Winnipeg, Man., Canada
Abstract :
A novel model-based pump pressure condition monitoring scheme for nonlinear hydraulic systems is presented. A second-truncated Volterra nonlinear model is constructed to describe the characteristic of inherent nonlinearities of the hydraulic systems. It is shown that the Volterra model estimated parameters, based on different input-output measurements, can recognize incorrect pump pressure using a geometric projection scheme. Simulations as well as laboratory experiments shows that any faulty pump pressure conditions can be detected and partially isolated
Keywords :
condition monitoring; drives; hydraulic systems; nonlinear systems; parameter estimation; pumps; servomechanisms; Volterra nonlinear model; condition monitoring; hydraulic servo-drive system; hydraulic systems; nonlinear systems; parameter estimation; pump pressure; Aerospace control; Condition monitoring; Hydraulic actuators; Hydraulic systems; Laboratories; Pistons; Pressure measurement; Recursive estimation; Solid modeling; Valves;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.945684
