Battery Charging Management System Design with Voltage, Current and Temperature Monitoring Features in Electric Vehicles

Abstract

Abstract Electric vehicles are a fresh trend in the Indonesian automotive world. The role of electric vehicles is supportive of maintaining the earth from air pollution. Electric vehicles use batteries to store the energy required. To preserve the condition of the battery, a good battery management system is needed that can protect the battery from overcharging, overuse, and even excessive surges due to backflow from an electric motor. The battery management system is designed using Arduino-Uno as a controller and processor using the ACS71230A current sensor module which is capable of measuring currents up to 30A. Using the waterproof sensor DS18B20 module to measure temperature. Apply a voltage divider circuit to measure the voltage on a battery because of an analog input voltage. Testing is done by examining the entire module and looking for the accuracy of the calculation of each module. To evaluate the level of accuracy is done by comparing the data that is read using Arduino and data measured using a multimeter. In designing this system, the final results of a battery charging management system can evaluate with an accuracy rate of current calculation far better than the accuracy rate of voltage calculation and an accuracy rate of 97% temperature calculation. The measurement of battery capacity is calculated based on the final power that can be achieved by the battery by calculating the multiplication between current and voltage. This battery charging management system can also display information using a serial monitor on the Arduino IDE when connected to a computer.