BMSlion Battery Management System has RS485 and CAN interfaces.  It can adapt to the desired message structure in CAN 2.0b format on CANBus. It also supports industry standard CAN protocols such as CANopen 418 . In this context, protocol adaptations can be made easily so that different devices can talk to CANopen  supported CAN communication ports. BMSlion also supports RS485 MODBUS protocol. Batkon team can develop customer specific CAN or RS485 protocols as well.

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Thanks to the "Automotive Grade" connectors on the BMSlion rear panel, the cable connections are designed to work in vibrant environments. In this way, it can be used in automotive applications such as Electric Vehicle, Go-Kart, Forklift, Golf car etc. 

BMSlion save data to log files in seconds to MicroSD compatible flash drives connected to the MicroSD connector on the board. By importing into Excel, these logs can be formatted and converted into desired graphics.

Software updates of BMSlion can also be done via MicroSD memory or Wi-Fi. The software of the module can be updated via Wi-Fi Web OTA interface by uploadingthe "firmware.bin" file. In addition, system settings can be import/export via Web interface.

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There are 3 MOSFET switched outputs on the GBMS board. Contactor coils connected to these connectors can be controlled by the GBMS. In this way, structures that can turn the current on and off in the Charge (CHG) and Discharge (DSG) directions are supported. The PRE drive output connector can also be used to support applications that require n-charge or pre-discharge. AUX output is also available to drive relay/contactor units that control Cooling/Heating or additional alarm systems.

With the Embedded Web server interface accessed via Wi-Fi SSID on the GBMS card, management parameters can be set for the module and instant data can be viewed on the panel.

 

It is designed to control the "Charge-Discharge Control - CDC" module, which includes MOSFET switches that can turn on and off charge and discharge through the "Probe" connector on the BMSlion module and a hall effect current sensor. It can cut the charge or discharge unidirectionally by turning the MOSFETs on the CDC on and off. In this way, it can be kept ready for discharge in "standby" applications, even though it cuts off the charge. The current sensor on the CDC can be 50-100 A type. In higher current applications, external hall effect current sensor and contactors with suitable current for charge discharge control can be used instead of CDC.

 

Technical Data:

Dimensions :

GBMS Board : 22 x 80 x 120mm (H x W x D),    65 gr

BMSlion Boxed : 32 x 95 x 130  (H x W x D),   185 gr

Electrical :

Supply voltage: 12… 72 VDC

Environmental :
• Working Temperature: -40 ... 85 °C                    • Relative Humidity: 90% RH

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BMSLion Features:

• 3-16 ports Can measure cell voltage with 1-2 mV precision (0.5 – 4.5V)

• Cell Balancing Method: “Passive Balancing” (150 or 300mA balancing current) 

• Cell Protection Features: If any cell exceeds the "Over Voltage Protection" (COV 2.5 - 4.5V adjustable) value in charging or goes below the "Under Voltage Protection" (CUV 0.5 - 3.0V adjustable) voltage during discharge, the current is cut off.

• MicroSD Interface: MicroSD card can be used to save system logs on memory or to update firmware and load system parameters at boot.

• It can transfer data to remote servers with TCP/IP protocols over Wi-Fi. Data can be viewed from Phone/Tablet/PC via Web browser via the embedded web server.

• Informs the user of System Status and Alarms with RGB LED.

• It measures cell temperatures with a 3 port NTC type temperature sensor. NTC can be upgraded to 8.

• With 2 port MOSFET driver (<5A pull down), it can turn on/off charge/discharge power MOSFETs or contactors.

• It can perform PRE-Charger/Discharge (<1A) function with 2 port High Side MOSFET switch.

• It can read packet current as voltage from Hall Effect Current Sensor. (2 ports)

• Can read packet current as voltage from 1-5 mOhm shunt current sensor

• It can communicate with management systems via optional RS485 interface.

• With the  CAN-Bus interface, it can communicate with Inverter and PCS or electric car ECU/VMS units.