IoT Based Smart Battery Management System (BMS) for Electric Vehicles

Abstract

Fuel prices are increasing day by day, and there is also a need to use cleaner and more sustainable transportation. Because of this, electric vehicles are becoming more popular. In an electric vehicle, the battery pack supplies power to the system, so its proper monitoring is very important. If the battery is not monitored regularly, problems like overvoltage or high temperature can occur. These problems can reduce battery life and may also affect safety. In this project, an IoT-based Smart Battery Management System is developed using an ESP32 microcontroller, a voltage sensor and a DHT11 sensor are used to measure battery voltage and temperature. Relay module is also connected to the system to disconnect the battery automatically if the voltage goes above the safe value. This project shows a simple and low-cost method for improving battery monitoring and safety in electric vehicles.