Multiple-step fault estimation for interval type-II T-S fuzzy system of hypersonic vehicle with time-varying elevator faults. (24th March 2017)

• Record Type: Journal Article
• Authors: Wang, Jin; Hu, Longze; Chen, Fuyang; Wen, Changyun
• Is Part Of: International journal of advanced robotic systems. Volume 14:Number 2(2017:Mar./Apr.)
• Publication Date: 2017-03-24
• Subjects: Hypersonic flight vehicle -- interval type-II -- T-S fuzzy system -- fault estimation -- time-varying elevator fault; Robotics -- Periodicals; Robotics; Periodicals; 629.892
• DOI: 10.1177/1729881417699149
• Languages: English
• ISSNs: 1729-8806

Abstract

This article proposes a multiple-step fault estimation algorithm for hypersonic flight vehicles that uses an interval type-II Takagi–Sugeno fuzzy model. An interval type-II Takagi–Sugeno fuzzy model is developed to approximate the nonlinear dynamic system and handle the parameter uncertainties of hypersonic firstly. Then, a multiple-step time-varying additive fault estimation algorithm is designed to estimate time-varying additive elevator fault of hypersonic flight vehicles. Finally, the simulation is conducted in both aspects of modeling and fault estimation; the validity and availability of such method are verified by a series of the comparison of numerical simulation results.