Discrete Lyapunov Controllers for an Actuator in Camless Engines

Publikation: Beiträge in SammelwerkenAufsätze in KonferenzbändenForschungbegutachtet

Authors

This paper deals with a hybrid actuator composed by a piezo and a hydraulic part controlled using two cascade Lyapunov controllers for camless engine motor applications. The idea is to use the advantages of both, the high precision of the piezo and the force of the hydraulic part. In fact, piezoelectric actuators (PEAs) are commonly used for precision positionings, despite PEAs present nonlinearities, such as hysteresis, saturations, and creep. In the control problem such nonlinearities must be taken into account. In this paper the Preisach dynamic model with the above mentioned nonlinearities is considered together with cascade controllers which are Lyapunov based. The sampled control laws are derived using the well known Backward Euler method. An analysis of the Backward and Forward Euler method is also presented. In particular, the hysteresis effect is considered and a model with a switching function is used also for the controller design. Simulations with real data are shown.
OriginalspracheEnglisch
TitelRecent advances in circuits, systems and control : Proceedings of the 2014 International Conference on Circuits, Systems and Control (CSC 2014); Interlaken, Switzerland February 22 - 24, 2014
HerausgeberMaria Isabel Garcia-Planas, George Vachtsevanos, Gen Qi Xu
Anzahl der Seiten6
VerlagEuropment
Erscheinungsdatum2014
Seiten19-24
ISBN (Print)978-1-61804-216-3
PublikationsstatusErschienen - 2014
VeranstaltungInternational Conference on Circuits, Systems and Control - CSC 2014 - Interlaken, Schweiz
Dauer: 22.02.201324.02.2014
http://www.inase.org/conferences/2014/interlaken/csc.htm

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