Nuvation

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Battery Management System


The latest Nuvation Battery Management System (BMS) is designed to monitor, balance, and protect large scale battery stacks in many applications. These include electric vehicles, grid storage, secondary vehicles such as industrial fork lifts or ATVs, residential time of use billing, solar and wind power conversions systems, UPS backup, and many military/defense uses. The technology to manage next generation battery systems for peak performance is complex, and requires state of the art design and testing to guarantee the results first time and on-going. The Nuvation BMS addresses all of the needs associated with today’s complex systems, including safety, accuracy, noise immunity, compliance with standards and competitive cost. Use of the Nuvation designed BMS technology will result in improved battery life, safety, scalability, decreased charge times, and advanced fuel gaging. All of these will improve ROI and accelerate your time to market.

Battery Management System diagram

Ordering and Licensing
The BMS Reference Design is available for licensing and ordering as an evaluation system.

Solution Pricing

Evaluation system consisting of a BMS Controller ("Tank") board, Battery Pack Management ("PackMan") boards, and evaluation use documentation

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Reference Design License, including design source data (schematics, layouts, source code, test data, design specifications, and more)

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Click here to inquire about the Battery Management System

 
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Product Data

Main Features and Capabilities

  • Extends usable battery capacity and decreases charge time by:
    • Keeping the pack balanced
    • Accurately calculating state of charge
  • Improves cycle life by intelligently managing power into and out of the pack
  • Decreases development time by providing a real-world tested system as a licensable design
  • Ensures safety by accurate and early detection of fault conditions
  • Scalable design compatible with standard Lithium and nickel-based battery chemistries
  • Low-cost distributed topology
  • Ultra low power operation
  • Advanced fuel gauging
  • Ties into many standard systems such as automotive ECU, EV charging stations, smart household energy meters
  • Performance validated using a thorough test strategy from benchtop to highway, including validation on a real-world test platform (the Nuvation E.Rex all-electric vehicle)
  • Full set of design and test documentation to accompany HW/SW source files
  • When used for automotive designs:
    • Designed to support ISO 26262 compliance; ASIL-C ready
    • Designed for compliance with major automotive industry standards such as ISO 7637 and MISRA C
    • Production-targeted PCB components are AEC-Q100/101/200 qualified
    • Tolerant of harsh transients new to electric vehicles such as a mid-pack fuse blow under full powertrain load

Key Specifications

  • -40 to +85C operating temperature
  • Scalable from 3 to 12 cells per Pack Management Board, with 1 or 2 chains, for a per-system capability up to 744 cells
  • Industry leading measurement accuracy
  • Allows temperature monitoring of every cell
  • Allows precise and intelligent balancing of every cell
  • CAN, LIN, and Ethernet communication interfaces
  • Compliant with J1772 charging standard; compatible with CHAdeMO

Applications

  • Electric and Hybrid Vehicles
  • Residential Time-of-Billing Load Redistribution Systems
  • Uninterruptible Power Supply Systems
  • EV Range Extender
  • Grid-attached energy storage
  • Cordless power tools
  • Industrial equipment

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