A robust model predictive control using a feedforward structure for a hybrid hydraulic piezo actuator in camless internal combustion engines
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Authors
This paper deals with a hybrid actuator composed by a piezo and a hydraulic part and with a Robust Model Predictive Control (RMPC) structure combined with a feedforward control in camless engine motor applications. A combination between a feedforward control based on an inversion of the system and an MPC structure is considered. The idea of the conception of the proposed new actuator 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 a feedforward control combined with a RMPC. Simulations of the implementation with real data are shown.
| Original language | English |
|---|---|
| Title of host publication | 9th International Multi-Conference on Systems, Signals and Devices (SSD) : Chemnitz, Germany, 20 - 23 March 2012 |
| Number of pages | 6 |
| Publisher | IEEE - Institute of Electrical and Electronics Engineers Inc. |
| Publication date | 03.2012 |
| Article number | 6198023 |
| ISBN (print) | 978-1-4673-1590-6 |
| ISBN (electronic) | 978-1-4673-1589-0 |
| DOIs | |
| Publication status | Published - 03.2012 |
| Event | 9th International Multi-Conference on Systems, Signals and Devices - SSD 2012 - Chemnitz University of Technology, Chemnitz, Germany Duration: 20.03.2012 → 23.03.2012 Conference number: 9 https://ssd-conf.org/previous/ssd12/ |
- automotive applications, Hybrid piezo hydraulic actuators, model predictive control, nonlinear systems, Automotive applications, Camless engine, Control problems, Feedforward structures, High precision, Hybrid actuator, Motor applications, Piezo actuator, Preisach, Robust model predictive control, Feedforward control, Internal combustion engines, Model predictive control, Nonlinear systems, Piezoelectric actuators, Piezoelectric motors, Predictive control systems, Robust control, Hydraulic actuators
- Engineering