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Communication Dans Un Congrès Année : 2015

Analysis and Optimization of a Piezoelectric Harvester on a Car Damper

Résumé

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.
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Dates et versions

hal-01153139 , version 1 (19-05-2015)

Identifiants

  • HAL Id : hal-01153139 , version 1

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Barbara Lafarge, Christophe Delebarre, Sébastien Grondel, Octavian Curea, Amélie Hacala-Perret. Analysis and Optimization of a Piezoelectric Harvester on a Car Damper. 2015 International Congress on Ultrasonics, May 2015, Metz, France. ⟨hal-01153139⟩
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