A new Sliding Mode Controller for Electro-Hydraulic Actuator (EHA) applications

Author

Xiang Hu ; Al-Ani, Dhafar ; Habibi, Saeid

Author_Institution

Mech. Eng., McMaster Univ., Hamilton, ON, Canada

fYear

2015

fDate

9-11 April 2015

Firstpage

1

Lastpage

7

Abstract

In any type of system, unexpected fault conditions may occur. A minor fault may cause the system efficiency and performance to deviate from norm and/or deteriorate; a major fault condition may cause a system failure. Fault detection and diagnosis (FDD) and fault tolerance are two important concepts that need to be considered in industrial applications and more specifically in safety critical systems. This paper considers the development of a fault tolerant sliding mode control (SMC) strategy for a form of hydraulic actuation system known as the Electro-Hydrostatic Actuator (EHA). EHA systems are being increasingly used in flight control applications. An EHA prototype is used for demonstrating the effectiveness of the proposed fault tolerant control strategy.

Keywords

electric actuators; electrohydraulic control equipment; fault diagnosis; fault tolerant control; hydraulic actuators; variable structure systems; EHA application; EHA system; FDD; SMC strategy; electro-hydraulic actuator application; fault condition; fault detection and diagnosis; fault tolerance; fault tolerant control strategy; fault tolerant sliding mode control strategy; flight control application; hydraulic actuation system; safety critical system; sliding mode controller; system efficiency; system failure; system performance; Fault detection; Measurement uncertainty; RNA; Trajectory; Fault Tolerance; Sliding mode Control;

fLanguage

English

Publisher

ieee

Conference_Titel

Recent Advances in Sliding Modes (RASM), 2015 International Workshop on

Conference_Location

Istanbul

Type

conf

DOI

10.1109/RASM.2015.7154653

Filename

7154653