Analysis of Power Regenerative Shock Absorber in Passenger Car

In this analysis, the modelling of a regenerative shock absorber in passenger car suspension system has been studied. The purpose of the conventional shock absorber in a vehicle’s suspension system is to reduce the vibration by dissipating the energy stored in the spring as heat to the surroundings. To recover the wasted energy from damper into electrical energy an inventive regenerative shock absorber is simulated. A mechanical motion rectifier is used to convert the suspension displacement into uni-directional rotation of the generator. A quarter car Simulink model of the power regenerated shock absorber was developed and simulated in order to evaluate the amount of the power regenerated. The dynamic performance of shock absorber is integrated into suspension system where the graphs are plotted with the parameter of road profile and vehicle speed. The mathematical model achieved an overall efficiency of 60% with the average of 40 watts.

A High-Efficiency Energy Harvesting By Using Hydraulic Electromagnetic Regenerative Shock Absorber

This article intends a hybrid energy harvesting shock absorber design which comprehends energy harvesting of automobile suspension vibration dissipation. A mathematical model of the energy harvesting prototype is established, and simulation results show that the dissipation energy can be recovered by varying the feed module, thereby got the damping forces ratio at different compression and extension stroke. The energy conversion from hydraulic energy to mechanical energy mainly then mechanical energy converted into electrical energy furthermore we can rechange our battery from this recovered energy. The advanced mathematical model and prototype proposed maximum ride comfort meanwhile recovered the suspension energy and fuel saving. This article shows the simulation results verifying it with prototype test results. The damping force of expansion stroke is higher than the damping force of compression stroke. The damping characteristics curves and speed characteristics curves verify the validity by simulation and prototyping damper at different amplitudes of off-road vehicles. The Hydraulic Electromagnetic Regenerative Shock Absorber (HESA) prototype characteristic is tested in which 65 watts recovered energy at 1.67 Hz excitation frequency. So, 14.65% maximum energy recovery efficiency got at 20 mm rod diameter and 8 cc/rev motor displacement. The damping characteristics of the HESA prototype examined and it has ideal performance as the standard requirements of the National Standard QC/T 491–1999.

Optimasi Electromagnetic Regenerative Shock Absorber (ERSA) Tipe Magnet Batang Alnico pada Suspensi Belakang Multi Purpose Vehicle (MPV)

This study aims to optimize the electrical energy generation generated by the Electromagnetic Regenerative Shock Absorber (ERSA) type of alnico bar magnet on the rear suspension Multi Purpose Vehicle. This study uses the Taguchi Experiment method by varying the number of copper windings (1000, 1500, 2000 turns), wire diameter (0.2 mm, 0.3 mm, 0.4 mm) and large air gap (2 mm, 3 mm, 4 mm). The results showed the highest electrical voltage generation of 1.68V in 2000 wire coil variants, 0.4 mm wire diameter and 4 mm air gap. while the lowest voltage generated electricity is 0.9V on 1000 wire coil variants, 0,2 mm diameter diameter and 2 mm air gap. That is, an increase in the voltage generated by using the Taguchi Experiment method from previous studies which produced a voltage of 121-131mV. Penelitian ini bertujuan untuk mengoptimalkan energi listrik bangkitan yang dihasilkan oleh Elektromagnetik Regenerstif Shok Absorber (ERSA) tipe magnet batang alnico pada suspensi belakang Multi Purpose Vehicle. Penelitian ini menggunakan metode Eksperimen Taguchi dengan memvariasikan jumlah lilitan tembaga (1000, 1500, 2000 lilitaan), diameter kawat (0,2 mm, 0,3 mm, 0,4 mm) dan besar celah udara (2 mm, 3 mm, 4 mm). Hasil penelitian didapatkan tegangan listrik bangkitan paling tinggi sebesar 1,68V pada varian lilitan kawat 2000, diameter kawat 0,4 mm dan celah udara 4 mm. sedangkan tegangan listrik bangkitan paling rendah sebesar 0,9V pada varian lilitan kawat 1000, diameter kawar 0,2 mm, dan celah udara 2 mm. Artinya, terjadi peningkatan tegangan yang dihasilkan dengan menggunakan metode Eksperimen Taguchi dari penelitian sebelumnya yang menghasilkan tegangan sebesar 121-131mV.