A Nonlinear Friction Model for an Electromechanical Actuator Valve

Abstract:

In this work we have extended a basic linear model of the Electromechanical Throttle Valve to a nonlinear friction model, which captures the most important friction phenomenon of interest for fault detection. In our examination we have implemented the Tustin’s friction model. This nonlinear friction model has only 4 parameters but describes the friction phenomenon of the Stribeck effect also it includes both the Stick and Slip regimes. To the validation of the actuator model and examination of the friction models we have performed experiments using the experimental setup of NI LabVIEW CompactRIO. The friction phenomenon as hysteresis, stick-slip and Stribeck effects, are an interest for fault detection of the Actuator Valve. The experimental results have shown, that Tustin’s model provides a good approach for modeling of the friction behaviour of the Electromechanical Throttle Valve.

• Periodical: Applied Mechanics and Materials (Volumes 799-800)
• Pages: 1096-1101
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.799-800.1096
• Online since: October 2015
• Authors: Zsolt Horváth*
• Keywords: Electromechanical Actuator Valve, Nonlinear Friction Model, Tustin’s Model

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