Engineering clarity for the EV era

Inside the CCS2 Handshake: How ISO 15118 Controls Every Fast Charge Session

Before a single electron moves from a CCS2 charger to your car, the two devices exchange authentication messages, negotiate charging parameters, and verify safety state over a Power Line Communication channel running at 500 kbps on the control pilot pin. ISO 15118-2 defines every step — and understanding it explains every failed session, every 'communication error', and why V2G is not yet possible on Indian infrastructure.