Automotive battery management system (BMS) - 48 V

Accurately monitor, protect, and optimize electric vehicle (EV) battery performance while revolutionizing driving experience and energy efficiency

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Overview

Transform your battery management system with Infineon's best-in-class 48 V BMS solutions. Used for energy storage and supply to electrical systems in electric two- and three-wheelers and mild hybrid electric vehicles (MHEVs), an automotive 48 V battery management system (BMS) is in charge of computation, communication, monitoring, and protection. Explore Infineon's complete and ISO 26262 ASIL-D compliant system solution.

Benefits

  • Supports up to 24 channels
  • Lowest system cost
  • Highly scalable
  • AURIX™: ASIL-D compliant MCU
  • TRAVEO™ T2G: Cost-optimized MCU
  • OPTIREG™ PMIC: ASIL-D compliant
  • TLE9012DQU: Cell monitoring ICs
  • PSOC™ HVPA: Current & pack sensing
  • EXCELON™ FRAM
  • SEMPER™ NOR Flash

Block diagram

About

Enhance your automotive 48 V BMS with our best-in-class solutions

Infineon offers a complete and scalable automotive battery management system chipset for 48 V solutions, production-ready complex device drivers with integrated safety libraries that supports up to ASIL-D safety standards. The interoperability and flexibility help you to reduce design effort and speed up time-to-market. Enhance your automotive 48 V BMS with our comprehensive product offering featuring best-in-class robustness, compact design and lowest PPM rates. Furthermore, Infineon's highly integrated products significantly decrease the footprint and help you reduce costs by minimizing PCB size. Besides, Infineon's zero-defect mindset is reflected in the lowest PPM rates in the market, and significantly reduces vehicle downtime and returns.

Infineon's 48 V batter management chipset solutions are dedicated to various vehicle and propulsion system types.

Vehicles types:

  • Passenger vehicles
  • Electric two-wheelers
  • Electric three-wheelers

Propulsion systems:

  • Low-voltage battery electric vehicles (BEV)
  • Mild-hybrid electric vehicles (MHEV)
  • 48 V as third voltage

Explore 48 V BMS functions below.

Monitor, protect, and optimize 48 V electric vehicle (EV) batteries

Cell monitoring & balancing: Diagnose cell voltages and temperatures, balance cell characteristics, and communicate with the main controller using low-power housekeeping.

Current sensing and coulomb counting: Measure SoC accurately and trigger battery disconnection with fast OCD using coulomb counting.

Battery control unit (BCU): Calculate SoC, SoH, SoP, and SoS, communicate with the domain controller, and perform housekeeping and firmware updates.

Battery passport & event logging: Log vital parameters, track malfunctions, support warranties clarification, and enable 'pay-per-use' models. Enhance battery performance and proactively condition it.

Battery pack monitoring: Detect thermal runaway, monitor battery disconnection, isolation, and overcurrent. Trigger disconnection units when necessary.

Battery disconnection and protection: Ensure EV safety during parking, charging, and discharging. Disconnect from charger and monitor disconnection state when triggered by failures or vehicle being off.

Isolated communication: Transmit cell information reliably between high-voltage and low-voltage domains using wired (ISO-UART) and wireless (low-power Bluetooth®) topologies.

Enhance your automotive 48 V BMS with our best-in-class solutions

Infineon offers a complete and scalable automotive battery management system chipset for 48 V solutions, production-ready complex device drivers with integrated safety libraries that supports up to ASIL-D safety standards. The interoperability and flexibility help you to reduce design effort and speed up time-to-market. Enhance your automotive 48 V BMS with our comprehensive product offering featuring best-in-class robustness, compact design and lowest PPM rates. Furthermore, Infineon's highly integrated products significantly decrease the footprint and help you reduce costs by minimizing PCB size. Besides, Infineon's zero-defect mindset is reflected in the lowest PPM rates in the market, and significantly reduces vehicle downtime and returns.

Infineon's 48 V batter management chipset solutions are dedicated to various vehicle and propulsion system types.

Vehicles types:

  • Passenger vehicles
  • Electric two-wheelers
  • Electric three-wheelers

Propulsion systems:

  • Low-voltage battery electric vehicles (BEV)
  • Mild-hybrid electric vehicles (MHEV)
  • 48 V as third voltage

Explore 48 V BMS functions below.

Monitor, protect, and optimize 48 V electric vehicle (EV) batteries

Cell monitoring & balancing: Diagnose cell voltages and temperatures, balance cell characteristics, and communicate with the main controller using low-power housekeeping.

Current sensing and coulomb counting: Measure SoC accurately and trigger battery disconnection with fast OCD using coulomb counting.

Battery control unit (BCU): Calculate SoC, SoH, SoP, and SoS, communicate with the domain controller, and perform housekeeping and firmware updates.

Battery passport & event logging: Log vital parameters, track malfunctions, support warranties clarification, and enable 'pay-per-use' models. Enhance battery performance and proactively condition it.

Battery pack monitoring: Detect thermal runaway, monitor battery disconnection, isolation, and overcurrent. Trigger disconnection units when necessary.

Battery disconnection and protection: Ensure EV safety during parking, charging, and discharging. Disconnect from charger and monitor disconnection state when triggered by failures or vehicle being off.

Isolated communication: Transmit cell information reliably between high-voltage and low-voltage domains using wired (ISO-UART) and wireless (low-power Bluetooth®) topologies.

Documents

Documents

Design resources

Partner solutions

Developer community

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