Thursday, July 25, 2024

Wireless Battery Management System for Electric Vehicles

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  • Analog Devices’ innovative battery management system implements wireless technology in conjunction with hardware and software in a single system-level product
  • Facilitates measurement of performance for optimal battery usage

Analog Devices, Inc has introduced a wireless battery management system (wBMS), which provides automotive manufacturers with increased flexibility to scale their electric vehicle fleets into volume production across a wide range of vehicle classes.

The wBMS eliminates the traditional wired harness, saving up to 90 per cent of the wiring and up to 15 per cent of the volume in the battery pack, as well as improving design flexibility and manufacturability, without compromising range and accuracy over battery life.

Integrated system functionalities

The wBMS includes all ICs, hardware and software for power, battery management, RF communication and system functions in a single system-level product that supports ASIL-D safety and module-level security. By delivering high accuracy for the vehicle lifetime, the system enables maximum energy use per cell required for best vehicle range and supports safe and sustainable zero-cobalt battery chemistries, such as lithium iron phosphate (LFP).

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“The transition of battery packs from wired to wireless connectivity enables automotive manufacturers to scale their electric vehicle platforms across multiple vehicle models to meet growing consumer demand,” said Patrick Morgan, Vice President, Automotive at Analog Devices. “Our wBMS solution not only simplifies manufacturing but also allows new systems to be built on wireless data, accelerating the entire industry towards a sustainable future. We are honoured to bring this breakthrough system innovation to market with General Motors.”

Additional system features enable batteries to:

  • Measure and report performance
  • Detect failures detection
  • Optimise battery pack assembly.

The obtained data can be monitored remotely throughout the battery lifecycle – from assembly to warehouse and transport through installation, maintenance and into a second-life phase.

ADI and General Motors have announced a collaboration, bringing the wBMS technology to General Motors’ Ultium battery platform. This will facilitate widespread electrification of the automotive company’s fleet.


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