Depending on the cell technology, up to 300 lithium-ion cells are interconnected in series. Overvoltage and undervoltage, communication faults or interrupted lines to individual cells indicate safety-critical conditions in the battery system.
The CSC (Cell Sensor Circuit) monitors the individual cells of the battery through the measurement of voltage, temperature and SOC. Every CSC is equipped with a passive discharge path in order to balance out the battery cell charges. The cell sensor circuit communicates with the superordinate BMS.
CSC is a product of
Sensor-Technik Wiedemann GmbH
All rights are reserved.
|Dimensions (approx.)||300 x 75 x 13 mm
(11.8“ x 3.0“ x 0.5“)
|Weight (approx.)||260 g (0.57 lbs.)
|Temperature range||−40° C ... +80° C (−40° F ... 176° F) environment temperature
|Power supply||powered by the BMS and battery cells
|Power consumption (in operation)||10 mA @ Ucell = 4.2 V
|Power consumption (sleep mode)||< 0.01 mA @ Ucell = 4.2 V
|Communication Interfaces||1 x CAN 2.0 B
|I/O’s||48 x cell voltage measurement inputs
16 x Temperature sensor inputs (10k NTC)
|Operation||Cell voltage measurement
Range: 1 … 5 V Accuracy: 2.5 mV @ 2.5 … 4.3 V
Cell temperature measurement Range: −55 … +125° C (−67 ... 257 °F) Accuracy: ±2 K plus sensor tolerance
Cell balancing (passive) Current: 120 mA @ Ucell = 3.6 V
Code: 1030119000100 ECU CELL SENSOR