NXP Semiconductors’ Ultra-Wideband (UWB) wireless battery management system (BMS) simplifies EV assembly, enables higher energy density, and decouples mechanical and electrical development for faster time to market.

Trimension UWB provides higher resistance to reflections and frequency-selective fading within the battery pack than existing narrow-band technologies, resulting in more robust and reliable data transfer.

It uses high-bandwidth pulses instead of a modulated carrier frequency (sinusoidal signal) as used in 2.4 GHz narrowband technologies.

The solution is part of NXP’s FlexCom chipset, which supports wired and wireless BMS configurations using common software architecture and safety libraries.

Leveraging wireless solutions minimises the use of complex wiring harnesses in the battery pack, and reduces the need for error-prone manual effort during production, which makes the assembly of EVs more efficient and reduces lifecycle costs.

The elimination of connectors and wiring between battery cells allows for increased energy density, which is a key parameter in EV design and performance to enable longer range.

NXP’s UWD system is available for OEMs to start evaluation and development in Q2 2025.

The solution is part of NXP’s FlexCom chipset, which supports wired and wireless technologies.