Several functions of Battery BMS

(1) Accurate estimation of SOC:

Accurate estimation of the state of charge (SOC) of the power battery, that is the remaining battery power, to ensure that the SOC is maintained within a reasonable range to prevent over-charging or over-discharging damage to the battery and display the remaining power of energy storage battery. The state of charge of an energy storage battery.

(2) dynamic monitoring:

In the battery charge and discharge process, real-time collection of batteries in each battery terminal voltage and temperature, charge and discharge current and the total voltage of the battery pack, to prevent the battery overcharge or over discharge phenomenon. At the same time can give the battery condition in time, pick out the question battery , to maintain the reliability and efficiency of the entire battery operation, so that the realization of residual power estimation model possible. In addition, the use of historical records of each battery, but also for the further optimization and development of new electric, charger, motor and other information to provide a basis for offline analysis of system failure.

The battery charge and discharge process will usually use more accurate and more stable current sensor for real-time detection, the general current according to the BMS front-end current of different sizes, to select the appropriate sensor range for close to 400A, Open-loop principle, domestic and foreign manufacturers are able to bear low temperature, high temperature, strong earthquake JCE400-ASS current sensor, select the sensor need to meet the high precision, fast response time.

(3) the balance between the battery:

That is single battery balanced charge, so that the battery pack in all the batteries have reached a state of equilibrium. Equilibrium technology is currently the world is committed to research and development of a battery energy management system of key technologies.