Publisher : Institute of Control, Robotics and Systems
DOI : 10.5302/J.ICROS.2016.15.0210
Title & Authors
H∞ Observer Design for Detecting Internal Oil Leakage in a Hydraulic Cylinder Jee, Sung Chul; Kang, Hyungjoo; Lee, Mun-Jik; Li, Ji-Hong;
This paper presents the internal oil leakage detection problem for a hydraulic double-rod cylinder. We represent the dynamics of the hydraulic cylinder as a convex combination of linear equations. To detect oil leakage, we propose a model-based fault detection observer design scheme. The observer is designed to be robust against disturbance. Sufficient design conditions are derived in the form of linear matrix inequalities. A numerical example is provided to verify the proposed techniques.