Battery Management System BMS
  • Voltage Classes

    12V and 24V batteries

    The low voltage batteries include lead acid and lithium-ion batteries, can be found in light passenger vehicles, electric 2 and 3 wheelers, trucks, commercial and agricultural vehicles. They support all types of propulsion systems.

    12 and 24 volt batteries
  • Voltage Classes

    48V and 72V batteries

    These batteries could not only be found in light passenger vehicles and electric 2 and 3 wheelers, but also support the propulsion system of BEV and MHEV. Besides, 48V battery could be used as 3rd voltages.

    48 and 72 volt batteries
  • Voltage Classes

    400V 800V 1200V batteries

    The high voltage batteries support light passenger vehicles, trucks, commercial and agricultural vehicles, as well as energy storage systems. Additionally, they also power the propulsion systems of BEV, PHEV, FHEV, and FCEV.

    400 800 1200 volt batteries
  • Subfunctions of BMS

    Battery Disconnection

    Ensure electric vehicle’s safety during parking, charging, and discharging by disconnecting from the charger when triggered by failure events, or from the battery when the vehicle is off, and monitoring the state of disconnection.

    Battery disconnection
  • Subfunctions of BMS

    Battery Pack Monitoring

    Maximize performance and protect passengers by thermal runaway detection, battery disconnection monitoring, isolation monitoring and over-current detection (OCD). Additionally, they trigger disconnection units if needed.

    Battery Pack Monitoring
  • Subfunctions of BMS

    Battery Passport & Event Logging

    Log and monitor vital parameters, to derive actual battery information, track back for malfunctions, clarify warranties and support ‘pay-per-use’ business models. Besides, the battery could thereby be performance-tuned or proactively pre-conditioned.

    Battery Passport Event Logging
  • Subfunctions of BMS

    Battery Controlling

    Drive monitoring units to calculate SoC, SoH, SoP and SoS, and communicate with the domain controller. Besides, the battery control units (BCU) perform housekeeping and update the BMS firmware.

    Battery Controlling
  • Subfunctions of BMS

    Cell Monitoring & Balancing

    Balance cells’ characteristics or the heterogeneous thermal spreads in the final pack by diagnosing the cells’ voltages & temperatures and communicating to the main controller with extreme low-power housekeeping.

    Cell Monitoring Balancing
  • Subfunctions of BMS

    Current Sensing & Coulomb Counting

    Trigger the battery protection unit to disconnect the loads from the battery cells with accurate SOC measurement and fast OCD by coulomb counting in battery management systems.

    Current Sensing Coulomb Counting
  • Subfunctions of BMS

    Isolated Communication

    Transmit cell monitored information reliably and safely between isolated high voltage and low voltage domains in the battery, supported by both wired BMS topology: Iso-UART and Wireless BMS topology: Low-power Bluetooth.

    Isolated Communication
  • Applications

    Automotive

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  • Applications

    Light Electric Vehicles

    Learn about Infineon's Light Electric Vehicle solutions

  • Applications

    Energy Storage Systems

    Learn about Infineon's solutions for Energy Storage Systems

  • Applications

    Commercial, Construction & Agricultural Vehicles

    Learn about Infineon's solutions for Energy Storage Systems

  • Applications

    Industrial

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