Intelligent battery control unit for Lithium-ion battery system

Specification

BMU has an Independent CAN I/F for master controller
Voltage sense accuracy	±10mV (sampling ratio 100ms)
Temperature	±1.5ºC(-15 to +80ºC) High temperature range:±3.0ºC
Current	Providing 10 bits AD (based on current sensor)
Cell voltage equalization	Discharge method (1W/cell)
SOC calculation	Composed method, current accumulation and OCV referring
Threshold value observation	Comparison with initial setting Parameters (Upper/Lower limit of V/T/C)
< Option >	Logging Super Capacitor for RTC Isolation Voltage Monitoring Board: It can connect up to 3 Isolation Voltage Monitoring Boards (2ch/ board)

System Specification

The system consists of one BMU and some (up to 13) BSUs
A BSU can monitor up to 12 cells
BMU and BSU are connected with 12 wires cable by daisy chain method
Current sensor has 2ch・ 8 segments of LED indicator can be controlled ・External relay (maximum 8ch) can be controlled
Power	BSU ; Internal Cell , BMU ; 12V outside
I/F	CAN 2ch, RS232C 2ch
Configuration	PUES can set parameters of battery characteristics and those applications which were supplied by customer.*Configuration tools are available upon request.

PUES is constantly updating various methods of battery protection.