Bike Cycling Project Report

Chapter 1

INTRODUCTION

In today’s world when the advancement in technology is at its peak and the impact of these technology over the human health is also point of concern. As the technology is advancing the physical activities are getting reduced. This in turn is not a good sign. In Indian urban areas people use bicycle very rarely and also they had become slave to their electronic gadgets. They are spoiling their health over them. But if they use the portable cycle mob charger it would encourage them to do more physical exercises through cycling. During cycling they can enjoy their gadgets such as phone, tablets, GPS etc.

Bicycle is the main mode of transportation for many Indian villagers. Most of these villages are un-electrified. Power

8. Frictional losses: The frictional losses occur because of friction between motor wheel & cycle wheel.

9. High speed.

2.13 Results

Starting with a dead cell phone, plugged in and placed in my basket, I spent approximately three hours and 25 miles riding in the streets of San Francisco to charge it back to full power. Much to my surprise, an easy speed of only four miles per hour was enough to keep the power production at the necessary five volts, and almost as soon as I rolled out the door, the phone lit up and beeped, indicating that it had begun to charge. Even in stop-and-go city cycling, my speed rarely dropped below charging speed, allowing the battery to juice up almost continuously.

The generator made riding significantly more difficult due to the friction of the roller against the tire, so you might want to disengage the generator on hard uphill climbs. Also, a lot of potential energy is wasted on long downhill runs, since voltage over and above 5V is lost as heat from the regulator. The system could be improved by installing a battery to catch and store the overflow energy for use when the output voltage drops below 5V, as when the bike is moving slowly or at