Deterministic Closed-Loop EV Charging Control
ChargingControl orchestrates on-board charger (OBC) and DC fast-charge power stages with real-time feedback loops, dynamically modulating current envelopes to mitigate cell degradation and avoid thermal trip thresholds.
Charging Control Core Zonal Architecture
Central Controller: Charging Control Core — 800V Real-Time Controller
Zonal Control Units & TSN Ring
- PWM / Control Pilot Interface
- Bi-Directional SiC DC-DC Stage
- Electrochemical Voltage Clamping
- Zonal Pyro-Disconnect Actuator
- ISO 15118 EVCC Link
Mastering Micro-Transient Surges in High-Power DC Fast Charging
When 350 kW chargers inject up to 500 A into an 800V pack, voltage overshoot transients can irreversibly damage cathode coatings. ChargingControl enforces hardware-accelerated current slew-rate limiting and closed-loop CAN-FD telemetry.
Core Engineering Areas
- Closed-Loop CC/CV Transition — Eliminating voltage spikes during the CC-to-CV transition boundary through model predictive current throttling.
- Control Pilot & PLC Sensing — Real-time sampling of the 1 kHz PWM pilot signal and HomePlug Green PHY powerline communication carrier with active noise cancellation.
- Thermal-Aware Current Derating — Dynamically throttling fast-charge currents based on PT1000 and NTC thermal sensors placed across the charging inlet pins and pack busbars.
Technical Articles
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