Battery Management Central Unit / Battery Management Central Unit (BMCU)
- It can handle up to 32 metering cards (LMUs) (32 × 8 = 256 cells)
- CANOpen connects to the communication network of the vehicle (eg. electric car)
the battery charger (s) is either analogue or PWM or CAN
- System Voltage Range 12 - 1000VDC
- Cells per LMU 3-8 Cells
- Cells per System 3 - 256 Cells in series
- Capacity Up to 2000 Ah
- Balancing Current Up to 840mA @ 4.2VDC (Optional Heat Sink for boosted performance)
- Input Voltage 12 VDC (9VDC - 14VDC)
- Current Consumption: BMCU <150mA operating
- Current Consumption: LMU <10mA operating. LMU is powered from cells
The s-BMS is an exceptionally flexible and cost-effective Battery Management System for automotive, industrial and stationary battery packs ranging from 12VDC up to 1000VDC.
It manages rechargeable lithium batteries of any chemistry and from any battery supplier allowing you maximum battery sourcing freedom.
The system consists of a master board (BMCU) communicating with up to 32 monitoring boards (LMU). Each LMU manages 3–8 cells in series and 2 temperature sensors. The BMCU handles pack level measurements, data logging, application and charger interfaces.
The PC Diagnostic Software provides an intuitive suite of system configuration tools as well as displays for monitoring battery and BMS performance. It allows you to set battery parameters such as limit voltages and temperatures, allowable charge and discharge rates or improve SoC estimation with your own battery model.
To simplify integration CAN frames can be constructed at “Bit-level” to broadcast any of the parameters measured and calculated by the s-BMS. A post-processing module allows you to scale and manipulate values and broadcast them on the CAN bus with no custom development needed. This allows the s-BMS to work as a drop-in replacement for many existing systems.
from 12 VDC to 1000 VDC
Up to 256 cells in series
All battery parameters are easily configurable
User-definable event responses and warnings
User configurable I/Os and CAN messages
Battery model for intelligent rate control
Embedded post-processing of CAN values
Detection of 27 error modes and 17 warning conditions
Noise and vibration robust
-40° to +85°C operational range
Cell voltages 0-5V, ±2mV accuracy
SOC and SOH estimations
Cell balancing up to 840 mA/cell
Cell and Pack resistance estimation
Advanced charger control