Battery Bus Module: Description and Operation

COMPONENT PARTS

Li-ion Battery Controller






- The Li-ion battery controller (LBC) is installed inside the battery pack.
- The LBC is the core of battery control. It detects the battery pack voltage and current, temperature inside the battery and intake temperature, and the voltage of each cell to determine the SOC (state of charge). It also calculates the allowable input/output values, and transmits the calculation data to the HPCM (Hybrid power train control module). The HPCM controls the vehicle according to the battery status.

MAIN ROLE OF LI-ION BATTERY CONTROLLER

1.Li-ion battery state check
- SOC (state of charge)
- Possible output power value
- Possible input power value
- Temperature
2.Optimization of cell voltage deviation
3.Prevention of overvoltage and overcurrent
4.Prevention of overheat
5.Detection of decrease in insulation resistance of high-voltage circuit