IJSRD - International Journal for Scientific Research & Development| Vol. 3, Issue 02, 2015 | ISSN (online): 2321-0613 All rights reserved by www.ijsrd.com 2522 Design and Fabrication of Hybride Two Wheeler Shubham Jalamkar 1 Ashish Kawale 2 Prashant Bhujade 3 Nikhil Sahare 4 Aamir Sayed 5 1,2,3,4 M.Tech. Student 5 Assistant Professor 1,2,3,4,5 Department of Mechanical Engineering 1,2,3,4,5 J D College of Engineering & Management (RTMNU) Nagpur University, India Abstract— A „hybrid electric two wheeler' is a vehicle which relies not only on batteries but also on an internal combustion engine which drives a generator to provide the electricity and may also drive a wheel. It has great advantages over the previously used gasoline engine that drives the power from gasoline only. It also is a major source of air pollution. The objective is to design and fabricate a two wheeler hybrid electric vehicle powered by both battery and gasoline. The combination of both the power makes the vehicle dynamic in nature. It provides its owner with advantages in fuel economy and environmental impact over conventional automobiles. Hybrid electric vehicles combine an electric motor, battery and power system with an internal combustion engine to achieve better fuel economy and reduce toxic emissions. In HEV, the battery alone provides power for low-speed driving conditions where internal combustion engines are least efficient. In accelerating, long highways, or hill climbing the electric motor provides additional power to assist the engine. This allows a smaller, more efficient engine to be used. Besides it also utilizes the concept of regenerative braking for optimized utilization of energy. Key words: Hybrid, Motor, Engine, Battery, Controller I. INTRODUCTION A 'gasoline-electric hybrid vehicle' is an automobile which relies not only on gasoline but also on electric power source. In HEV, the battery alone provides power for low-speed driving conditions. During long highways or hill climbing, the gasoline engine drives the vehicle solely. Hybrid electric vehicles comprise of an electric motor, inverter, battery as electric drive and an internal combustion engine with transmission connected as gasoline based drive. It is to achieve better fuel economy and reduce toxic emissions. 2 It has great advantages over the previously used gasoline engine that is driven solely from gasoline. This hybrid combination makes the vehicle dynamic in nature and provides its owner a better fuel economy and lesser environmental impact over conventional automobiles. II. CONSTRUCTION Construction of this bike involves following components:  Motor  Controller  Alternator  Battery system  Engine  Microcontroller A. BLDC Motor: Brushless DC electric motor also known as electronically commutated motors are synchronous motor that are powered by a DC electric source via an integrated inverter switching power supply, which produces an AC electric signal to drive the motor. The rotor part of a brushless motor is often a permanent magnet synchronous motor, but can also be a switched reluctance motor, or induction motor. Brushed DC motors develop a maximum torque when stationary, linearly decreasing as velocity increases. Some limitations of brushed motors can be overcome by brushless motors; they include higher efficiency and a lower susceptibility to mechanical wear. These benefits come at the cost of potentially less rugged, more complex, and more expensive control electronics. Fig. 1: BLDC hub motor B. Controller: Controller is a brain of the complete hybrid system. Its function is to receive data from various sensors and provide Electrical power as per the throttle position and angle. It decides the fuel mode that is, to run the motorcycle on petrol or to run it on electrical power. It checks the battery voltage and current value and notifies the user about the charging time. Fig. 2: Hub Motor Controller C. Alternator Alternator is an electrical generator that convert mechanical energy to electrical energy in the form of alternating current, for reason of simplicity, most alternator use a rotary magnetic field with stator armature. Any ac electrical generator can be called an alternator.