Abstract
Aim/ Objectives: The aim of this research work is to design and implement a low cost electric bike to use for day to day activities, to analyze the mileage of the bike for every charging per hour. Method: Initially the model of Hbridge driver circuitry is created to drive the BLDC motor in Proteus simulation software. PWM pulses are fed to H-bridge driver circuitry and response of the BLDC motor is studied. The speed control mechanism of BLDC motor driver is studied in simulation. Then the H-bridge converter circuitry is designed and developed to drive the BLDC motor. The assembly of BLDC motor and tyre is selected which act as rear wheel. The system is designed around Arduino microcontroller. Lithium ion battery is used to supply power. Program is developed for Arduino Uno microcontroller to generate PWM pulses which are fed to H-bridge driver. The performance of the BLDC motor driver is analyzed. After precise control of the motor and tyre assembly, the other subsystems like speedometer, indicator, accelerator, horn, braking system etc. are developed and tested. Motor controller and status monitoring controller acts in coordination due to which in any faulty or abnormality situation both interacts with each other to take necessary action. Finally the mechanical assembly and chassis is designed and developed. Findings: The bike developed in this work is found to be useful for day to day domestic uses. The maximum speed of 40km/ hr is achieved and upon charging for nearly 3 hours it travels around 70km. Keywords: Low cost E-bike; electric vehicle; BLDC motor driver; microcontroller based E-bike
Highlights
Due to the petroleum crisis and polluting effects in world, nowadays trend is seen in automobile industry to switch to electric vehicles
Fuzzy logic based system is described to determine the range of the electric vehicle (1)
After this simulation is performed in Proteus software to drive the BLDC motor and experimentation is done, the pattern of the waveforms to be applied to BLDC motor is studied
Summary
In initial phase the facilities to be given for the bike are planned, the accessories to be used are determined; the structure of the bike is decided. With this in mind BLDC motor is selected and priority is given to the assembly having tyre and BLDC motor. After this simulation is performed in Proteus software to drive the BLDC motor and experimentation is done, the pattern of the waveforms to be applied to BLDC motor is studied. Actual hardware is implemented and experimentation is performed. After getting precise control and speed regulation of the motor actual hardware is developed and other accessories are interfaced
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