Overview of BMS (Battery Management System)

The battery management system is commonly known as the battery nanny or battery butler, and BMS is the abbreviation of Battery Management System. That is to say, the battery management system is to manage the battery so that the battery can achieve a better working state and work stably.

The battery management system is an intelligent circuit board, which is mainly used to intelligently manage, monitor, and maintain the various states of the battery to prevent overcharging, overdischarging, and short circuits in the circuit, and thereby extend the service life of the battery.

The BMS (battery management system) mainly includes a control module, a display module, a wireless communication module, a data acquisition module, and electrical equipment. The control module is connected to the input end of the BMS (battery management system); the output end of the BMS is connected to the input end of the control module; the control module is connected to the battery pack and electrical equipment respectively; the BMS (battery management system) is connected to the wireless communication module and the display module respectively through the communication interface, and the output end of the acquisition module is connected to the input end of the BMS (battery management system); the BMS (battery management system) is connected to the server end through the wireless communication module. 

Main functions of BMS (Battery Management System)

1. Measurement of single battery voltage;

2. Energy balance between single batteries;

3. Measurement of total voltage of battery pack;

4. Measurement of total current of battery pack;

5. SOC calculation: Accurately estimate the state of charge (SOC) of the power battery pack, that is, the remaining power of the battery, to ensure that the SOC is maintained within a reasonable range and prevent damage to the battery due to overcharging or over-discharging.

6. Dynamic monitoring of the working status of the power battery pack: During the charging and discharging process of the battery pack, the terminal voltage and temperature, charging and discharging current and total voltage of each battery in the battery pack are collected in real time to prevent overcharging or over-discharging of the battery pack.

7. Real-time data display;

8. Data recording and analysis: Select batteries with problems to maintain the reliability and efficiency of the entire battery operation.

9. Communication networking function.