Abstract
The aim of this work is to present a model for the study and analysis of an Electromagnetic vibration energy harvester for automotive suspension. The Electromagnetic energy harvester (EEH) transforms the kinetic energy due to vibrations created by roads irregularities to electrical energy. The model is based on the electromagnetic equation solved using finite element method (FEM) coupled to the mechanical one obtained through the modeling a quarter of the automotive system. The coupling with mechanical phenomena is carried out principally by magnetic force. The displacement of EEH moving part is simulated using the Macro-Element (ME) technique. The cycle of vibration is transmitted to electromagnetic energy harvester device as vertical displacement. The obtained results are mainly the output electrical power, the suspension deflection and the induced electromotive force, for an imposed cycle of vibration. The effect of the weight of the sprung mass on the induced electromotive force and the electrical power will be presented.
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