Energy Recovery Using Regenerative Suspension System

The main purpose of our project is to design and implement a suspension system that regenerate the Green Electrical Energy from the energy which would have been lost otherwise due to conventional System The shock absorber will be used for generation of renewable energy as kinetic energy which

Project Title

Energy Recovery Using Regenerative Suspension System

Project Area of Specialization

Electrical/Electronic Engineering

Project Summary

The main purpose of our project is to design and implement a suspension system that regenerate the Green Electrical Energy from the energy which would have been lost otherwise due to conventional System

The shock absorber will be used for generation of renewable energy as kinetic energy which was being wasted in the form of heat energy gets utilized in the form of electrical energy

We will be using ring shaped radial Ney odium magnets mounted on a paramagnetic rod. The one end of that rod will be attached with the vehicle’s tire by using bearing bands and other end to the body of vehicle. We will be using a spring under the magnets to bring them back to their original positions after the oscillations caused by the shocks are damped.

Around the magnets, there will be cylindrical coil of copper consisting of several turns which will be used to generate voltages due to the flux linkages produced by moving magnets. There will be an electrical connection of the coil to the rectifier which will convert alternating current into direct current. Then, a capacitor will be used to store these voltages.

As the voltage produced will be of very small value, a DC-DC Boost Converter will be used to increase the voltages and bring them into working range. A battery is also added to store the voltages. This battery will supply the electricity back to vehicle. A dump resistor will also be added; in case the battery gets fully charged, the rest of voltages produced can be discarded by this resistor.

Hence this was a brief summary of our final year project.

Project Objectives

As the number of vehicles over the past decades has increased which lead to the increase in the clean energy demand. Vehicles are being developed  in the direction of energy-saving and electrification. Traditional  hydraulic energy-supply suspension dissipates vibration energy as waste heat to suppress vibration. This part of the energy is mainly generated by the vehicle engine. In order to effectively utilize the energy of this part, the energy-regenerative suspension system converts the vibrational energy into electrical energy utilizing the vehicle’s energy supply equipment’s such as electromagnets and coil. The main aim and objective of our final year project are as follow:

• To recover the kinetic and vibrational energy of a car’s shock absorber that was about to waste in the form of heat and damping and convert it into electrical energy to charge batteries.
• To bring regenerative energy in the range of the useable energy.
• To use electromagnets in a suspension system instead of oil for damping effect, as the electromagnets magnets provides damping action through repulsive forces present between two electromagnets present in a suspension system.
• To provide environment friendly clean energy as the batteries will replace the use of fuel.
• There are too many new invasions in automobile industry. New car model and in future advance technology will be utilized in automobile. So, we decide to do power generation by using shock absorber. The generated voltage will depend on the shock, but voltages will be boosted further using DC-DC Boost Converter so that it can be stored.
• For our project we have decided to use electricity generated for starter and head light, and battery charging since we are basically devising a system that will be user friendly, would be used to generate power.

Project Implementation Method

Regenerative shock absorber can be implemented in various ways some are.

It can be used in hybrid cars as in hybrid car there is combination of petrol and battery so overall efficiency of car is increased in terms of milage. When we implement shock absorber with hybrid car then battery gets recharged. It can be used to store a secondary battery in a hybrid car. So overall efficiency of the vehicle will be increased.

Regenerative shock absorber can be used to increase efficiency of an electric vehicle can be increased by using Regenerative Shock absorber we can use a secondary battery which will be storing electricity that will be generated by Regenerative Shock absorber hence it can prove cost effective as well as time compatible because the time to charge the battery up for long route travel will be reduced.
As in Pakistan electric bikes are also being introduced so this idea is not only restricted to 4 wheel vehicles only. It can be implemented in bicycles also with small batteries installed which can be used to run headlights horns of a bicycle.

We can implement a concept of primary and secondary battery concept. For example, when 1st battery which is primary battery is charged then the energy generated by regrated shock absorber will be used to charge up the secondary battery. This secondary battery will be used to run Air Conditioner system in the car which uses extra patrol and reduces the milage per litter of a car. We can also operate headlights and dashboard light of a car. This secondary source battery can also be used to operate sound system of a car. Hence reducing load on the engine and the engine will be more efficient.

Even of motorbike shock absorber can be replaced with a regenerating shock absorber one which can be used to charge the battery. It can also be used to light up headlights of the bike use during night.

Initially 5v DC will be generated those generated voltages will be boasted up to a 15v DC. So, it can be step up or step down according to the vehicle we are using and what is required.

So, this idea is implementable to hybrid or fully electrical vehicles.

Benefits of the Project

Regenerative Shock absorber has many benefits in its own ways the first most important benefit is it is green and clean energy. As many countries are making policies to make their countries zero carbon emission, we should also take some serious steps in making Pakistan a less carbon emission country by introducing zero pollution emission equipment.

In regular car generally shock absorber are used that have oil and piston mechanism and the energy is used in oscillation so to utilize this energy instead of regular shock absorber people will prefer regenerative due to its efficiency.

If the concept of secondary battery is introduced then the overall load in the engine will be reduced hence increase overall efficiency of the car with increase in millage.

Particularly in roads like Pakistan the road is full of bumpy rides. Hence regenerative shock absorber will help a lot instead of a conventional suspension system. Hence instead of wasting energy it will be utilized in converted energy into electrical energy which will be utilized in battery and latter be used.

A regenerative shock absorber, the disclosed device is capable of converting parasitic displacement motion and vibrations encountered under normal urban driving conditions to a useful electrical energy for powering vehicles or charging batteries in electric powered vehicles.

We will be generating the renewable energy as kinetic energy being wasted in the form of heat energy gets utilized in the form of Green Electrical Energy.

We will be looking forward to that the device will be capable of high-power generation capacity and energy conversion efficiency with minimal weight penalty for improved fuel efficiency. the efficiency of the electric vehicle as the energy lost in the form of vibrations or heat etc. again converted into the electrical energy and it will be stored in the battery.

DC output we get will be increased to the working DC voltage. This device will give the minimum (almost none) pollution that it will be environmentally friendly regenerative shock absorber.

Technical Details of Final Deliverable

The Technical deliverables of our final year project will comprise of following:

Equipment

Magnets

Paramagnetic rod

 Cylindrical Coil

Helical Spring

Inductors

Full wave Rectifier

DC-DC Step up Boost Converter

Battery

DC 12V Vibration Motor

Dump Resistor

Dummy Load

Final Deliverable of the Project

Hardware System

Core Industry

Transportation

Other Industries

Telecommunication

Core Technology

Wearables and Implantables

Other Technologies

Shared Economy

Sustainable Development Goals

Good Health and Well-Being for People, Affordable and Clean Energy, Decent Work and Economic Growth, Industry, Innovation and Infrastructure, Sustainable Cities and Communities, Responsible Consumption and Production, Partnerships to achieve the Goal

Required Resources

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