VelOn - The detachable bicycle motor

Sammanfattning: Electric bikes have become a popular means of transportation over the years. This report examined whether or not it is plausible to upgrade old bicycles to electrical bikes, thereby, using the already existing bicycles and avoiding the need of unnecessary manufacturing. A prototype of the mountable motor was designed and manufactured. The device consisted of two units, a mounting unit and a motor unit. A controller was connected to the motor and could be placed on the handlebar. The controller both enabled control and monitoring of the power given to the motor. The prototype’s durability, potential velocity and control system were tested to answer the research questions and give recommendation to further developments of the project. No major malfunctions were found in the construction after testing. For a voltage of 12V and a payload of 22kg, the bicycle obtained a top speed about 3m/s. The control system gave a smooth transition between velocities with hardly any noise to the signals.