Energy harvesting using a dynamic weighing system based on piezoelectric materials

Road transport is one of the primary energy-consuming sectors. Therefore, the concept discussed in this paper is of great interest since it aims at transforming this sector into a clean and renewable energy producer by using piezoelectric conversion. In this context, the work carried out in this paper focuses on studying the electrical power density recovered by a miniaturized dynamic weighing system based on piezoelectric sensors by varying the truck's speed and weight. According to the tests performed, the power density collected is approximately 36,06W/ m3 for a moving speed is 0,52m/s and a vehicle weight equal to 1150g. The system described in this paper offers the possibility to control the moving vehicle load by weighing and converting the vibrations into electricity by the direct piezoelectric effect.