Analysis and Optimization of a Piezoelectric Harvester on a Car Damper

Low power levels obtained from piezoelectric conversion of ambient vibrations appear to be a promising solution to supply wireless sensors embedded inside automotive suspension. However such a solution requires overall an optimum power extraction from the piezoelectric power harvester. This leads to...

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Bibliographic Details
Published inPhysics procedia Vol. 70; pp. 970 - 973
Main Authors Lafarge, B., Delebarre, C., Grondel, S., Curea, O., Hacala, A.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.01.2015
Elsevier
SeriesProceedings of the 2015 ICU International Congress on Ultrasonics, Metz, France
Subjects
Bond graph modelling
Electric power
Energy harvesting
Engineering Sciences
Piezoelectric vibration harvester
Vehicule suspension
Bond graph modelling
Vehicule suspension
Energy harvesting
Piezoelectric vibration harvester
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Summary:Low power levels obtained from piezoelectric conversion of ambient vibrations appear to be a promising solution to supply wireless sensors embedded inside automotive suspension. However such a solution requires overall an optimum power extraction from the piezoelectric power harvester. This leads to the use of a sufficiently accurate and flexible modelling method to find the optimal characterics and configuration of the harvester. To this end, an innovative bond graph model of the piezoelectric harvester embedded in the quarter vehicle system is proposed for providing the harvested power when a car travels a road with a speed bump at 30km/h. Results show that around of 0.5 milliwatt electrical power is harvested when varying key parameters like the location and characteristics of the piezoelectric device.
ISSN:1875-3892
1875-3892
DOI:10.1016/j.phpro.2015.08.202