Real-Time High-Frequency Traction Battery Monitoring & Fault Mitigation
RealTimeBattery eliminates traction battery blind spots by replacing low-frequency 10Hz CAN polling with microsecond-level telemetry. Sampling cell currents, voltages, and thermal gradients at kilohertz rates, the architecture identifies dendrite formation, thermal runaway triggers, and internal shorts before catastrophic failure.
Realtime Battery Engine Zonal Architecture
Central Controller: Realtime Battery Engine — 100 kHz High-Speed AFE
Zonal Control Units & TSN Ring
- Isolated Shunt 100 kHz Current Sensor
- Microsecond Overcurrent Hardware Comparator
- Instantaneous Internal Resistance (Ri) Core
- 1 Gbps TSN Battery Telemetry Stream
- Pyrotechnic Actuator Fast Driver
Why 100 ms CAN Bus Telemetry is Too Slow for Modern Battery Safety
High-voltage 800V traction architectures demand unprecedented observability. In milliseconds during aggressive acceleration, regenerative braking, or physical impact, subtle voltage dips uncover micro-shorts and electrode stress. RealTimeBattery couples precision A/D converters with FPGA accelerators to compute electrochemical impedance spectra in real time.
Core Engineering Areas
- High-Frequency Current Sensing — Deploying temperature-compensated Manganin shunts and fluxgate sensors sampling current at 100,000 samples per second to observe microsecond transient dynamics.
- Crash-Induced Internal Short Detection — Monitoring sudden drops in high-frequency impedance to identify separator rupture and internal short circuits seconds before temperature sensors register any heat.
- TSN Battery Telemetry Streaming — Using IEEE 802.1Qbv Time-Aware Shapers to stream raw cell voltages and temperatures directly from zonal gateways to the central vehicle compute cluster.
Technical Articles
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