Automotive high-voltage battery management system (BMS)
Accurately monitors, protects and optimizes electric vehicle (EV) battery performance, revolutionizing your driving experience and energy efficiency
High-voltage batteries are batteries with many sets of parallel cells in series stacked to produce a battery pack with voltages reaching up to 1200 V. The automotive high-voltage 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, covering BEVs, PHEVs, FHEVs, CAVs, and energy storage systems.
Monitor, protect, and optimize high-voltage (HV) 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 & coulomb counting: Measure SoC accurately and trigger battery disconnection with fast OCD using coulomb counting.
- Battery controlling: 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 & 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.
Enable faster time-to-market with complete HV BMS chipset
Infineon offers a complete and scalable automotive HV BMS chipset, production-ready complex device drivers with integrated safety libraries and supports up to ASIL-D safety standards. The Interoperability and flexibility help you to reduce design effort and speed up time-to-market for high-voltage battery management systems.
Applications:
- Energy storage systems
- Battery electric vehicles (BEV)
- Plug in hybrid electric vehicles (PHEV)
- Full-hybrid electric vehicles (FHEV)
- Commercial electric vehicles (eCAV)
Enhance your high-voltage BMS with best-in-class robustness, compact design and lowest PPM rates
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.
