Discrete Lyapunov Controllers for an Actuator in Camless Engines
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Recent 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. ed. / Maria Isabel Garcia-Planas; George Vachtsevanos; Gen Qi Xu. Europment, 2014. p. 19-24 (Recent Advances in Electrical Engineering Series - 31).
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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TY - CHAP
T1 - Discrete Lyapunov Controllers for an Actuator in Camless Engines
AU - Mercorelli, Paolo
AU - Werner, Nils
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
KW - Engineering
UR - http://www.inase.org/library/2014/interlaken/bypaper/CSC/CSC-01.pdf
M3 - Article in conference proceedings
SN - 978-1-61804-216-3
T3 - Recent Advances in Electrical Engineering Series - 31
SP - 19
EP - 24
BT - Recent advances in circuits, systems and control
A2 - Garcia-Planas, Maria Isabel
A2 - Vachtsevanos, George
A2 - Xu, Gen Qi
PB - Europment
T2 - International Conference on Circuits, Systems and Control - CSC 2014
Y2 - 22 February 2013 through 24 February 2014
ER -