Get15118EVCertificate

Relays an ISO 15118 certificate installation or update request from the vehicle.

Version: OCPP 2.0.1
Direction: Charge Point → CSMS
Functional block: ISO 15118 Certificate Management

Plug-and-charge requires the vehicle to hold a valid contract certificate. When the vehicle needs one installed or renewed, it produces an exchange the station cannot resolve on its own, and forwards it here.

The station is a relay: it does not interpret the payload.

Request

Field	Type	Required	Description
`iso15118SchemaVersion`	string	Required	The ISO 15118 schema version in use.
`action`	CertificateActionEnumType	Required	`Install` or `Update`.
`exiRequest`	string	Required	The vehicle's request, EXI-encoded and base64-wrapped.

json

[2, "19223201", "Get15118EVCertificate", {
  "iso15118SchemaVersion": "urn:iso:15118:2:2013:MsgDef",
  "action": "Install",
  "exiRequest": "gAABAAEBVSTb..."
}]

Response

Field	Type	Required	Description
`status`	Iso15118EVCertificateStatusEnumType	Required	`Accepted` or `Failed`.
`exiResponse`	string	Required	The response to pass back to the vehicle, EXI-encoded.
`statusInfo`	StatusInfoType	Optional	Reason code.

json

[3, "19223201", {
  "status": "Accepted",
  "exiResponse": "gAABAAEBVSTc..."
}]

Implementation notes

Neither side parses the EXI payload. The station relays it and the CSMS forwards it to the contract certificate pool. Debugging failures here means looking at the 15118 layer, not at OCPP.

Install is for a vehicle with no certificate; Update renews one that exists.