Application of EKF for an Electro-Hydraulic Servo System Using Model-Based Approach

Lin Zheng; Liang Liang Wu; Xue Ming Gu; Z. Shi; Andrew Ball

doi:10.4028/www.scientific.net/AMM.385-386.609

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 385-386Application of EKF for an Electro-Hydraulic Servo...

Application of EKF for an Electro-Hydraulic Servo System Using Model-Based Approach

Abstract:

This paper works on extended Kalman filter (EKF) for model-based fault detection of an electro-hydraulic system to deal with stochastic behaviour during control. A mathematical model of an electro-hydraulic system is developed. Some faults are introduced to evaluate the EKF fault detection method. Comparison of the EKF estimation accuracy and a linearised model-based accuracy shows the advantage of the EKF.

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Periodical:

Applied Mechanics and Materials (Volumes 385-386)

Pages:

609-613

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.385-386.609

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Online since:

August 2013

Authors:

Lin Zheng, Liang Liang Wu, Xue Ming Gu, Z. Shi, Andrew Ball

Keywords:

Diagnosis, Electro-Hydraulic Servo System, Extended Kalman Flter (EKF), Fault Detection, Mathematical Models, Model-Based

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