Datasheet

NewTec GmbH Buchenweg 3 89284 Pfaffenhofen a.d. Roth Tel.: + 49 7302 9611-0 [e-mail] www.newtec.de
DataSheet
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Description
NTBMS is a Battery Management System for manufacturer of
automotive Battery Systems, used as Starter Battery or Auxiliary
Battery with Li-Ion cells.
The NTBMS platform is designed for systems with high demand
on reliability and safety in compliance with ISO 26262 ASIL C.
NTBMS is a generic safety reference design for BMS developed
in cooperation with NXP. The Battery Management System of Li-
Ion battery includes cell monitoring, current sensing, passive cell
balancing, battery breaker control, computation unit for Battery
parameter extraction (such as State of Charge, State of Health)
and communication to other ECU through CAN.
Battery management systems (BMS) are responsible to steer
and control high-voltage batteries of Electric and Hybrid Electric
Vehicles. This control unit is essential since several battery cells
are unified to a cluster to enhance battery capacity. It is a charge
regulator which should guarantee a stringent power supply of
the engine.
BMS are essential to monitor state of charge, load distribution,
temperature of each battery cell as well as of the whole battery
package and development of the charging capacity.
Typical Applications
_ Automotive BMS for Starter Battery with Li-Ion battery
_ Automotive BMS for Auxiliary Battery
_ Smart Grids
_ Other Battery Management opportunities (medical, e-Bike,
light transportation, industrial)
Customer Benenfits
_ Accelerate time to market
_ Reduction in costs for development and certification
_ Safety Development Platform for BMS
_ Reference Design in compliance to ISO 26262 ASIL C
Key Features
_ Integrated system diagnostic functions up to ASIL C
_ Overcurrent protection
_ Overcharge protection
_ Over-temperature protection
_ Over-voltage protection
_ Under-voltage protection (short circuit)
_ Protection against unintended relay close
_ Protection against unintended relay open
_ Crash detection input
NTBatteryManagementSystem: Safety reference design
in compliance to ISO 26262 ASIL C
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Figure 1: NTBMS Baseboard & NT SafeSOMmicro