What is BMS?

Battery Management System

BMS is the abbreviation of Battery Management System, also known as battery nanny or battery steward. It is one of the core technologies in electric drive equipment.

The main functions of BMS include real-time monitoring of battery status, management of on-board power batteries, enhancement of battery efficiency, prevention of overcharge and over-discharge of batteries, and improvement of battery life. By collecting data such as voltage, temperature, current, resistance, etc. of the power battery system, analyzing data status and battery use environment, and monitoring and controlling the charging and discharging process of the battery system, BMS also has core functions such as battery status analysis, battery safety protection, battery energy management, communication and fault diagnosis.

Core functions of BMS in battery management

Real-time monitoring of battery status: including monitoring of parameters such as voltage, current, and temperature.

Preventing overcharging and over-discharging: maintaining each battery cell through intelligent management to extend the battery life.

State of charge (SOC) estimation: estimating the remaining power and driving range of the battery.

Single cell balancing: ensuring the balanced use of each battery cell in the battery pack to avoid premature failure of some batteries.

‌Safety protection‌: Ensure that the battery operates within a safe working range to avoid danger.

‌Energy management‌: Optimize the energy use of the battery and improve overall efficiency.

‌Communication function‌: Transmit the data of the battery system to other systems or display it on the dashboard, so that users can understand the battery status.

‌Fault diagnosis‌: Timely detect and diagnose faults in the battery system for later repair and maintenance.

In summary, BMS plays a vital role in both battery management and building equipment management, and is a key technology to ensure the safe and efficient operation of equipment.