Study Of Energy Regenerative Suspension System For Vehicle

Rahiman Salmi , Rosdi (2013) Study Of Energy Regenerative Suspension System For Vehicle. Project Report. UTeM, Melaka. (Submitted)

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Abstract

This Final Year Project, the research is to study the reliability and to analyze the energy harvest from vehicle suspension system. The regenerative suspension system (RSS) is a device that converts the kinetic energy of an oscillating object into electric energy. Normally, this kinetic energy is dumped in a form of thermal energy in a conventional of mechanical shock absorber The suspension systems in modern vehicles better work of dissipating energy. The onward energy in a vehicle to be changed into vertical energy can be form at any bump in the road or terrain. The energy existence that is wasted from the modern vehicle suspensions systems can be harvested and converted into a form that can be used in a different part in the vehicle. More purposely, this energy can be transformed into electrical energy that can be used to charge a car battery. This could possibly balance in small or more of the work done by the alternator, resulting in rose up of fuel efficiency. If this system is carried out in electric vehicles, energy regenerated could recharge the battery and will longer the distance of these vehicles to travel. The method used for this project is to conduct the experiments on the induced electric from electromagnet that attach to the suspension system components and the components of the vibration energy regeneration and conversion. v The main target of this project is to design and analyze the operation of the RSS. Among the method used to design computer-aided drawing is through the use of CATIA V5 R20. This drawing includes drawing where the concept of this drawings on the concept of regenerative suspension system. This project uses the concept of functional electromagnetic induction to convert mechanical energy from vibration into electrical energy. In order to characterize the initial requirements that the RSS has to satisfy, the construction and performance of currently used shock absorbers were studied first. For this study case, two versions of were analyzed qualitatively and the most suitable design was selected. The next topic was the design calculations for the chosen type of the RSS. The designed was studied under steady-state conditions to determine its electromechanical characteristics. The dynamic model of the whole system of the RSS was proposed and described using the voltage equilibrium equation for the electrical port and the force equilibrium equation for the mechanical port. The performing of the RSS acquired from simulations was compared with mechanical parameters of the mechanical shock absorber. The assumption that is obtained shows that the RSS is able to store part of the recovered energy in the battery. However, a great part of this energy is lost in the generator resistance and in the external resistance, which is necessary to be connected to the generator output terminal in order to obtain the desire electromechanical parameters.

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