This document provides an overview of a design project to develop a modular wheel with an integrated power source and control system for electric bicycles. It includes an abstract, introduction on the motivation and benefits of e-bikes, a literature review on relevant prior work, identified gaps in current research, objectives of the project, and a proposed work plan. The objectives are to develop motor control circuits, a battery pack with management system, an integrated circuit board, and optimize the bicycle design for fabrication.

1. Development of a modular wheel with
a sophisticated power source and
embedded control system
Name: Sharanraj K
Reg No: 22MMT1003
Guide: Dr Sakthivel G
Course Name: Design Project
Course Code:
First Review
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2. Contents
 Abstract
 Introduction
 Motivation
 Literature survey
 Literature gap
 Objectives
 Work Plan
 Work done
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3. Abstract
This project is about design and fabrication
modular wheel with sophisticated power source
and embedded control system.
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4. Introduction
• In transportation we have developed quite a lot by the range of
hi-tech vehicles we have; still the importance of bicycle cannot
be neglected.
• Bicycle is popular in all groups because it is easy to handle by
its light weight, and do not cost money to operate as it does not
require fuel to run, still very efficient in small distant traveling.
• Similar to this, e-bike on the other hand is a modified version
of the same. An electronic bicycle (e-bike) is a bicycle that has
an electric drivetrain, involving a motor, a power source, a
motor controller, and a method of speed control.
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5. • In this project, we have designed a retrofit
wheel which has all components (hub motor,
battery pack with battery management system
and controller) and main objective is designing
PCB intergating BMS and controlling circuit of
motor.
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6. Motivation
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The above table shows the estimation of e-bike sold in each country. In India
only 70000 bike were sold which is very less by comparing with population.
Even though now the usage of e-bikes is increased but commercialisation of
e-bike is yet to begin. This motivates me to design and fabricate a retrofit
electric bicycle.

7. Literature survey
SL. NO Author and Year of
Publication
Important Findings
1 Design and Development of
an Innovative E-Bike.
C. Abagnalea, M. Cardoneb
(2016)
• Idea of the pedelec prototype.
• Two different gearboxes: the first one
is a planetary gearbox and the second
one is a simple bevel gear.
2 Fabrication of E-bike
Mohammed Hassan Khan,
Mohammed Habeeb Ullah
Shareef(2020).
• Design of Sprocket and Chain for
Electric Bike.
• Components used to make E-bike.
3 R&D on Electric Bike.
Yashwant Sharma,Praveen
Banker(2018)
• Model of Springer fork and PIC
controller.
• Power assist system is a combination of
POWER ON DEMAND and PEDAL
ASSIST .
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8. 4
SL.
NO
Author and Year of
Publication
Important findings
4 Design and Fabrication of
Electric Bike.
Deep R Prajapati, Kunjan Shinde
(2017)
• Braking system - spring loaded
friction- shoe mechanism
• Design of shaft and selection of pitch
of sprocket
5 Design, Modeling and
Simulation of an Electric
Vehicle
Iqbal Husain and Mohammad S.
Islam, SAE Transactions( 1999)
• The design of an electric vehicle
system using a switched reluctance
motor drive.
• The capability of SRMs in operating
over a wide speed range in the constant
power region.
6 Design and Development of
BLDC controller and its
Implementation on E-Bike
Khan Farhan Ibne Faruque,
Nuzhat Nawshin
• PROTEUS simulator is used to design
the BLDC controller
• Only 10 batteries, the cycle is capable
to run for almost 30 minutes
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9. Literature Gap
• Electric bike which is foldable.
• High speed application design.
• Design of Integrated PCB for controller and
BMS for commercial.
• Future developments with no spokes
and creative concept.
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10. Objectives
Development of motor controlling circuit.
Development of battery pack and BMS.
Design a PCB integrating Motor controller and
BMS.
Optimised design of bicycle.
Fabrication.
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11. Work Plan
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Charger
BLDC
Motor
350W
Controller
Hall Effect sensor
Wheel
Throttle
Bluetooth Module
Brake
Battery
Battery
Management system

12. Design of Motor
• Required Motor Power: P = m*g*V*sinα
• Vehicle Weight: 15 kg
• Load: 70 kg
• Speed: 40 kmph
• Gradient: 5%
• Power: 346.2 W
• Wheel Diameter: 24 inches
• Torque Required: 15.59 Nm
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