Linear permanent-magnet valve actuator – The dynamic model: digital simulations, open-loop U/f and I/f operation and position estimation performance, with experiments

AGARLITA S., C; Boldea, I; Tutelea, L; Marignetti, Fabrizio

doi:10.1109/ELECTROMOTION.2009.5259103

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Linear valve actuators are used for cameless systems of internal combustion engines. The actuator works as a mechanical oscillator, which uses springs, and is controlled by electromagnets. The paper aims to: develop a dynamic circuit model with inductance dependence on position and current obtained from Finite Element Method analysis (FEM) by curve fitting; validate the dynamic model in open-loop and closed-loop U/f and I/f control experiments; introduce two new mover position estimators by using the dynamic circuit model plus FEM-derived curve-fitted (flux/ current/ position) dependencies.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11580/10612

Titolo:	Linear permanent-magnet valve actuator – The dynamic model: digital simulations, open-loop U/f and I/f operation and position estimation performance, with experiments
Autori:	AGARLITA S. C BOLDEA I TUTELEA L MARIGNETTI, Fabrizio mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2009
Abstract:	Linear valve actuators are used for cameless systems of internal combustion engines. The actuator works as a mechanical oscillator, which uses springs, and is controlled by electromagnets. The paper aims to: develop a dynamic circuit model with inductance dependence on position and current obtained from Finite Element Method analysis (FEM) by curve fitting; validate the dynamic model in open-loop and closed-loop U/f and I/f control experiments; introduce two new mover position estimators by using the dynamic circuit model plus FEM-derived curve-fitted (flux/ current/ position) dependencies.
Handle:	http://hdl.handle.net/11580/10612
Appare nelle tipologie:	4.1 Contributo in Atti di convegno

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