Brief paper: Modeling and identification of systems with backlash

Authors:
Jozef Vörös
Affiliations:
Institute of Control and Industrial Informatics, Faculty of Electrical Engineering and Information Technology, Slovak Technical University, Ilkovicova 3, 812 19 Bratislava, Slovakia
Venue:
Automatica (Journal of IFAC)
Year:
2010

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Abstract

A new analytic form of backlash characteristic description is introduced, which uses appropriate switching functions and their complements. The backlash parameters in the model equation are separated; hence their estimation can be solved as a quasi-linear problem using an iterative method with internal variable estimation. Also, the identification of cascaded systems consisting of an input backlash followed by a linear dynamic system is presented. Simulation studies of backlash and cascaded systems identification are included.