Modular CAN Battery Management System
CAN-BMS
•R
obust, CAN-enabled Battery
Management System (BMS)
•S
uitable for most battery
chemistries and super capacitors
in automotive and industrial
applications.
•U
p to 12 cells per CAN-BMS
•U
p to 255 CAN-BMS units can be
daisy-chained together for large
battery systems
•9
-40V DC operating voltage –
power can be supplied by the
battery pack or by an external
supply
• Isolated CAN bus
•P
rotected analogue inputs and
digital I/O
Description
Key Features
The Hyperdrive CAN BMS module
is a high-specification battery
management system for up to 12
battery cells in series. The CAN BMS
has an on-board CAN bus interface
which allows it to communicate with
other CAN BMS modules, enabling
up to 255 to be daisy-chained
together for use on large series
battery installations.
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This is an ideal platform for
automotive, offshore, energy
storage and industrial battery
packs with a CAN-based control
system. This gives a robust
battery management solution with
enhanced functionality.
Resistive cell balancing
Cell fault reporting
State of Charge reporting
9-60VDC operating voltage
Isolated CAN Interface
RS232 Serial port
Up to 12 series cell connections per
CAN-BMS
• Up to 60V battery pack voltage
• Discharge/balancing resistors
mounted on a separate daughter
board to allow a range of different
mounting options
• Ruggedized enclosure available
Tel: +44(0) 1670 706 100 | Email: info@hyperdriveinnovation.com | Web: www.hyperdriveinnovation.com
Modular CAN Battery Management System
CAN-BMS
Applications
The Modular CAN-BMS is designed to operate
in a range of different configurations to suit the
particular application.
Basic Single-Pack
The most basic configuration of the CAN-BMS is
as a stand alone battery management system for
a single cell-pack.
The cell pack can contain anywhere between
3 and 12 identical cells. The CAN-BMS can be
powered by the battery pack or by a separate
9-40VDC power supply.
Multiple Battery Packs – Master/Slave
System
If the battery pack has more cells than can be
managed by a single CAN-BMS, it is possible to
daisy-chain several units together.
The CAN-BMS modules can be configured as
masters or slaves during the programming phase,
or by selection of specific resistor values which
relate to predefined CAN addresses within the
standard firmware.
The only practical limits on the number of
modules that can be connected in this way are
the CAN bus capacity and the voltage isolation
limits on the CAN-BMS boards.
ICSP Header
Connectors and Enclosure
The standard CAN-BMS is designed to be
mounted in the battery pack but can also be
connected through a flylead arrangement to
a remote location. The resistor board can be
mounted directly to the board.
Additional Information
Additional information on the Hyperdrive
Innovation CAN-BMS module can be obtained by
contacting Hyperdrive.
Information available includes:
• Full circuit schematics
• Component datasheets
Hyperdrive Innovation can also provide firmware
development services for the CAN-BMS if
required.
Tel: +44(0) 1670 706 100 | Email: info@hyperdriveinnovation.com | Web: www.hyperdriveinnovation.com
Discharge Resistor
Board Connector
Main I/O connector
CAN BMS main board connectors