Development of regenerative shock absorber using the piezoelectric patch for electric vehicles

Document Type : Research Paper

Authors
N. G. Bathrinath 1
M. Yuvaraja 2
1 ME-Engineering Design, PSG College Of Technology, Coimbatore, India
2 Mechanical Department, PSG College of Technology, India
10.22075/ijnaa.2021.5892
Abstract
In the era of electric vehicles, a regenerative shock absorber can be equipped in the place of normal shock absorbers which continuously produces electricity and can be amplified and fed to the battery, a piezoelectric generator can be used that harvests mechanical vibrations energy available on an electric vehicle. The piezoelectric material can be placed in shock absorber housing above the piston head. Due to bumps and pits on road, continuous generation of electricity is possible. It can be then amplified and fed back to the battery regeneratively. The 3D cad model of piezo housing was modelled and the force acting on the housing of piezoelectric materials was analyzed and found to be 103.5KN and equivalent power produced was calculated. Various Piezoelectric materials were studied and PZT 5A was found to be the best to act as transducer and quartz was the best material to act as Actuator. A proof of concept developed showed the power produced by piezo material and comparison study of that with PZT 5A was done and power produced was 19J which is 9\% of power produced by the charger of electric vehicles. The calculation for mileage showed an increase of 3 km which is 4\% of the maximum distance covered by the average electric bike.
Keywords
Electric vehicle (EV’s)
Regenerative
Shock absorber
Transducer
Quartz
Actuator
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International Journal of Nonlinear Analysis and Applications
Volume 12, Special Issue
December 2021
Pages 1807-1825

  • Receive Date 03 August 2021
  • Accept Date 01 November 2021

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