Design of a frictional drive system to convert conventinal bike into electric bike

The objective of this thesis project was to design a frictional drive unit for various types of conventional bicycles to convert them into electric bikes. The thesis project is commissioned by Hämeen ammattikorkeakoulu (HAMK). This report is effective for environmental purposes on basis of the public who is switching to electric bicycles. The main goal of this thesis project is to contribute to a reduction of carbon emissions during the production process for the new electric bikes. Initially, the report explains the background of the electric bicycle users and the government policy to support them in switching to electric bikes. This indicates the market is moving towards electric bikes where there are lots of possibilities for converting conventional bikes into electric bikes. After that, the report focuses on the commercially available different types of drive systems with their advantages and disadvantages to identify the most suitable drive system for this converting process. The compact design, material selection, and manufacturing process of a drive unit also need to be considered. Also, the drive unit must have to follow the regulation for motor assistance. Furthermore, the report explains the design process for an appropriate solution for a frictional drive system. It covers the design method, the parts required for drive units, power supply, etc. The environmental impact is also briefly explained for recycling the conventional bikes. This report is based on web research for practical usage. With considering requirements for the design, calculation, 3D modelling, manufacturability has been done to have a practical solution