What are the principles of BMS power lithium battery management system?

The battery management system BMS is an important component of the electric vehicle power lithium-ion battery system. On the one hand, it tests, collects and preliminarily calculates the real-time battery state parameters, and controls the on and off of the power supply loop based on the comparison between the test value and the permitted value; on the other hand, it reports the collected key data to the vehicle controller and receives the controller To coordinate with other systems on the vehicle. Lithium battery management system, different battery cell types, often have different requirements for the management system. The principle of BMS power lithium battery management system: BMS lithium battery management system.jpg Lithium battery management system (BMS) determines the status of the entire battery system by testing the status of each single battery in the power lithium ion battery pack, and based on their The state carries out corresponding control adjustments and strategy execution to the power lithium-ion battery system, and realizes the charge and discharge management of the power lithium-ion battery system and each monomer to ensure the safe and stable operation of the power lithium-ion battery system. The topological structure of a typical lithium battery management system is divided into two major parts: the master control module and the slave control module. In detail, it consists of a central solution unit (main control module), a data acquisition module, a data test module, a display unit module, and control components (fuse devices, relays), etc. Generally, the data information communication between the modules is realized by using the internal CAN bus technology. Based on the functions of each module, BMS can test the voltage, current, temperature and other parameters of the power lithium battery in real time, realize the thermal management, balance management, high voltage and insulation test of the power lithium ion battery, and can calculate the remaining capacity of the power lithium ion battery , Charge and discharge power and SOCu0026SOH status. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete.