Evaluation by mechatronic modeling of a piezoelectric harvesting system

Optimize and reduce the electrical energy consumption of vehicles has increasingly attracted the attention of researchers in the energy harvesting domain. However, this article aims to analyze and model the suspension of an autonomous vehicle in order to harvest the ambient vertical vibrations transmitted by the road roughness to the driver body and convert this vibration energy to electric power using a new piezoelectric energy harvesters’ system, which allows us to obtain superior performance and sustainable. The proposed model of conversion has been continuously developed in the meantime and frequency domains. This model will be first of all studied by a mechatronic methodology which is the bond graph modeling for a vehicle suspension system comprising a vehicle body model, chassis suspension, and driver's seat suspension. The variation of the conductor mass and the road profile are also taken into account in the proposed model.
Finally, the simulation results show a large amount of electric power harvested during the car's motion.