Design and Analysis of Battery Management System for Electric Vehicles

Abstract— The capacity of a system for battery management (BMS) to evaluate the general condition of the battery pack is one of its most important features. The BMS monitors the capacity of the weakest cell and the internal resistance of each cell. Based on these variables, it calculates a cell healthiness percent that ranges from 0% to 100%. A fault code is created and freeze frame data is kept for later examination if any cells or the entire pack fall below the predetermined criteria when this health data is assessed against them. Numerous functions on the BMS are designed to protect the battery pack. These systems use techniques to make sure the battery lasts longer and is ready to give full power when needed, in addition to continuously monitoring and safeguarding it. The BMS extends the life of the battery pack and improves its performance by carefully controlling cycles of charging and discharging, balancing cell voltages, and guarding against situations that could harm the battery. This guarantees dependable operation and maximum efficiency. Keywords— State on charge (SOC), simulation, electric vehicles, batteries management systems, and open circuit value (OCV).