Development of Voltage and Temperature Monitoring Circuit for Lithium-Ion Batteries Used in Electric Vehicles.

Abstract

The suggested method explains how to prevent lithium-ion batteries in electric vehicles (EVs) from being overcharged or discharged. It also keeps an eye on the temperature of the batteries, which increases the EV batteries dependability and efficiency. Relay 1 is triggered when there is an overcharge, or when the battery voltage rises above 14V. After that, the charging port is disconnected. Relay 2 is triggered when an over discharge occurs, meaning that the voltage drops below 9 volts. After that, the motor or load is disconnected. In a similar way, the realy3 is triggered when the temperature rises over the safe limit, which in turn triggers the cooling fan to lower the temperature. Additionally, the EV owner receives all of the information. The proposed system includes protection mechanisms for electric vehicles and battery temperature monitoring, ensuring safety during charging and discharging. These mechanisms prevent overcharging preventing overheating.