EV Charging Glossary
- OBC (On-Board Charger)
- Converts AC grid power to DC to charge the traction battery.
- DC-DC Converter
- Steps the high traction voltage down to the low-voltage vehicle network.
- PDU (Power Distribution Unit)
- Distributes and protects high-voltage circuits in the vehicle.
- EVCC (Electric Vehicle Communication Controller)
- Handles the communication protocol between vehicle and charging station.
- CP (Control Pilot)
- Signalling line that negotiates available current and charging state.
- PP (Proximity Pilot)
- Signalling line that detects connector insertion and cable capacity.
- HVIL (High Voltage Interlock Loop)
- Safety loop that confirms all high-voltage connections are seated before energising.
- PnC (Plug and Charge)
- ISO 15118 feature allowing authentication and billing without an app or card.
- V2L / V2V / V2H / V2G
- Vehicle to load / vehicle / home / grid: bi-directional power export.
- ASIL
- Automotive Safety Integrity Level, defined by ISO 26262.
- UNECE R10
- Vehicle-level electromagnetic compatibility regulation.