Automotive 48 V battery management system (BMS)
Accurately monitors, protects, and optimizes electric vehicle (EV) battery performance - revolutionizing driving experience and energy efficiency.
A 48 V battery is used for energy storage and supply to electrical systems in electric 2- and-3- wheelers and mild hybrid electric vehicles (MHEVs) regardless of the P0 - P5 configuration in the powertrain. The automotive 48 V battery management system (BMS) is in charge of computation, communication, monitoring, and protection. Infineon offers a complete and ISO 26262 ASIL-D compliant system solution.
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.
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.
Applications:
Vehicles
- Light 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
Infineon's highly integrated products significantly decrease the footprint and help customers 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.
- Get an overview of the main feature set of this 48-volt capable EiceDRIVER™.
- Understand its different integrated protection mechanisms.
In this training you will:
- Learn about the transition from fule injection combustion engine to full battery electric vehicles and the main 48V powered applications.
- Additionally get an overview about Infineon’s comprehensive MOSFET portfolio for 48 V applications and their support material.
- Have an overview of the converters needed in electric vehicles.
- Analyze the 2-quadrant converter topology in buck and boost mode and the half-bridge converter with center tap rectification topology.
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- Know how a typical battery protection switch works and the importance of MOSFET avalanche robustness
- Identify the best-in-class Infineon offerings of demo boards, MOSFETs and gate drivers
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