Universal Charger for Electric Bicycles

Universal Charger for Electric Bicycles

Claveau, E.
Kool, B.
van Mierop, R.

van Duizen, P. (mentor)

Electrical Engineering, Mathematics and Computer Science

Electrical Engineering

2017-02-02

In the summer of 2016, a solar powered charging station for electric bicycles and scooters was built on the TU Delft campus next to the EEMCS building. Initially the station could only charge very few types of batteries, due to the fact that each battery manufacturer has its own different requirements for the charger. The aim of this BSc final project is to extend the charging capabilities of the station so that it can work with as many battery brands as possible, with more importance given to the more popular brands. Experiments were carried out on two types of batteries to gain an understanding of how they are charged. In order to realize a universal charger, initially a general concept was formulated, and then its subsystems were designed. Voltage and current sensors were designed to send data from a battery which is connected to the charging station to an Arduino microcontroller. This data can then be used to control a CC/CV (constant current/constant voltage) regulator and a current limiter in order to replicate a battery's original charger. In the end, not all subsystems could be implemented, and a working prototype was not realized, however much work was done that can be used in future designs. Three group members worked on this universal charger. Ron dealt with the microcontroller, the data lines and the charging protocols. Enzo was concerned with the CC/CV controller and the current sensor, as well as helped with the protocols. Bram was responsible for the CC/CV regulator, the current limiter and the voltage sensor.

http://resolver.tudelft.nl/uuid:59a71aa0-7907-41e3-9e14-17dbd37f2ac8

Student theses

bachelor thesis

(c) 2017 The Author(s)