Investigation of Vibrations Energy Harvesting from Passive Car Suspension Using Quarter Car Model Under Bump Excitation

Ayoub Benhiba,Drissi Hilal,Rajae Alla,Abdelmajid Bybi,El Ayachi Chater

doi:10.1051/e3sconf/202233600053

Abstract

This paper aims to evaluate the voltage and the electrical power harvested from the car suspension system under bump excitation using a piezoelectric stack. For this purpose, a quarter car system equipped with a piezoelectric stack installed parallel to the suspension's damper is modelled and investigated in temporal domain using MATLAB/Simulink. The studied system is excited, considering different bump amplitudes to evaluate the harvested voltage and power at different speeds. The effect of the suspension's damping coefficient on the harvested voltage and power is also studied and quantified.

Highlights

Renewable energy comes from natural resources that can be replenished in less than one person's lifetime without consuming the earth's resources
The electrical voltage and power harvested using a piezoelectric stack are evaluated by a theoretical quarter car model implemented in MATLAB/Simulink
This paper investigates and quantifies the electrical voltage and power harvested from a car suspension system using a piezoelectric stack

Summary

Introduction

Renewable energy comes from natural resources that can be replenished in less than one person's lifetime without consuming the earth's resources. The world continues to rely heavily on fossil fuels and even subsidises them The pollution they produce has reached unprecedented levels, ranging from climate-altering greenhouse gases to health-threatening particulates. Hassaan [27] used a quarter car model with the passive suspension to study the car's dynamics when crossing a speed bump. The novelty of this paper is to harvest energy from cars’ suspension systems in the presence of speed bumps with different dimensions. The electrical voltage and power harvested using a piezoelectric stack are evaluated by a theoretical quarter car model implemented in MATLAB/Simulink.

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