MPMG- Momentum Powered Magnetic Generator

Overview

The MPMG is an electric generator designed to use the momentum power derived from the acceleration and deceleration of an electric vehicle to increase the car's onboard battery range.  The MPMG uses a similar concept of a shake flashlight to generate electricity.  Electricity is generated when an extremely powerful neodymium cylindrical magnet passes through a very large coil of copper wire.

Abstract

Limited battery range for electric vehicles (EVs) is a universal problem when EVs are applying the friction brake system instead of the regenerative braking system.   This research investigates the enhancement of battery range of EVs, using a Momentum Powered Magnetic Generator (MPMG).  The loss in energy from the friction braking adds up and the range of the battery decreases.  The MPMG is proposed to make up for the lost energy from the friction brakes.  The MPMG design used in this research is a long tube that runs along either side of the length of the vehicle.  It is wrapped with wire and has a cylindrical neodymium magnet that goes inside of the tube. The amount of wraps as well as the gauge of wire is being optimized in order to get minimal resistance and ultimately maximum electrical power.  To date, the small-scale system produces 8.55 volts and 38.4mA at 1500 wraps of 25 AWG magnet wire per inch.  In principle, acceleration of the EV will cause the magnet to move forward and for each pass of the magnet through the coil, the MPMG produces electricity, which recharges the onboard battery.  Calculations are being performed for full-scale applications for prototype testing.

Generator ends

Both ends of the generator are capped with a PVC cap with another extremely strong neodymium magnet glued inside.  These ends are set to opposing poles of the main magnet passing back and forth inside the generator.  When the main magnet passes through the coil, instead of losing its energy once reaching either end, the main magnet is repelled from the ends and bounced back through the coil allowing more electricity to be generated.  With this enhancement to the system, one original force exerted on the generator will allow the magnet to continuously pass through the coil without losing significant energy with one pass of the coil.