EN ISO 15118-20:2022 PDF

Road vehicles - Vehicle to grid communication interface - Part 20: 2nd generation network layer and application layer requirements (ISO 15118-20:2022)

Title (English):

EN ISO 15118-20:2022

Road vehicles - Vehicle to grid communication interface - Part 20: 2nd generation network layer and application layer requirements (ISO 15118-20:2022)

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 570
Publication date:: May 18, 2022
Edition:: CEN EN 15118 edition 1 version 1
ICS:: 43.120

Document language:

enru

Delivery time:1–7 days

Price:290 €

Description (English):

This document specifies the communication between the electric vehicle (EV), including battery electric vehicle (BEV) and plug-in hybrid electric vehicle (PHEV), and the electric vehicle supply equipment (EVSE). The application layer messages defined in this document are designed to support the electricity power transfer between an EV and an EVSE. This document defines the communication messages and sequence requirements for bidirectional power transfer. This document furthermore defines requirements of wireless communication for both conductive charging and wireless charging as well as communication requirements for automatic connection device and information services about charging and control status. The purpose of this document is to detail the communication between an electric vehicle communication controller (EVCC) and a supply equipment communication controller (SECC). Aspects are specified to detect a vehicle in a communication network and enable an Internet Protocol (IP) based communication between the EVCC and the SECC.

Technical details

Technical committee: CEN/TC 301 - Electrically propelled road vehicles
SKU: EN ISO 15118-20:2022

Abstract

Overview

EN ISO 15118-20:2022 (ISO 15118-20:2022) specifies the 2nd generation network layer and application layer requirements for vehicle-to-grid (V2G) communication between an electric vehicle (EV) - including BEV and PHEV - and electric vehicle supply equipment (EVSE). The standard defines message formats, sequence requirements and timing to support bidirectional power transfer, IP-based communication between the EV communication controller (EVCC) and supply equipment communication controller (SECC), and both conductive and wireless charging scenarios. EN ISO 15118-20 supersedes EN ISO 15118-2:2016 and expands security, transport, presentation and application-layer services for modern smart charging.

Key Topics

V2G application messages and sequencing: normative definitions of requests, responses, headers, error handling and session flows to enable reliable charging, renegotiation and service selection.
Network & transport requirements: IP-based communication, TCP/UDP handling, reference to applicable RFCs and protocol parameter constraints.
Security and certificate management: TLS usage, certificate and key lifecycle, root certificate requirements, cryptographic key protection and random number generation.
Presentation layer formats: XML and Efficient XML Interchange (EXI) usage and message security at the presentation layer.
Data link & WLAN security: requirements for secure data link handling for both wired and wireless (WLAN / wireless power transfer) communications.
Bidirectional and wireless charging support: messages and timing for power transfer in both AC/DC conductive charging and wireless power transfer (WPT), including Automatic Connection Device (ACD) support.
Discovery & service selection: SECC discovery protocols, supported application protocols and VAS (value added services) association.
Timing & synchronization: V2G message synchronization with IEC signaling (e.g., IEC 61851-1, IEC 61980-2) and precise timing constraints for charging sequences.

Applications

Who uses EN ISO 15118-20:

EV OEMs implementing EVCC software stacks and secure communication features.
EVSE manufacturers and charge point operators (CPOs) building SECC implementations, bidirectional chargers and roaming-capable services.
Software developers and system integrators creating charging management platforms, V2G services and firmware.
Cybersecurity teams and test labs validating TLS, certificate profiles and message security.
Standards bodies and policymakers aligning regulatory frameworks for smart charging and interoperability.

Practical use cases include secure plug-and-charge, smart grid integration, vehicle-to-home (V2H) and vehicle-to-grid (V2G) energy services, and interoperable wireless charging deployments.

Related Standards

ISO 15118-2 (superseded)
IEC 61851-1 (charging signaling)
IEC 61980-2 (wireless power transfer signaling)
Relevant IP/TCP/UDP/TLS RFCs and certificate infrastructure standards

Keywords: ISO 15118-20, EN ISO 15118-20:2022, V2G, vehicle-to-grid communication, EV charging communication, EVCC, SECC, bidirectional charging, EVSE, smart charging.

Related standards

Standards mentioned in the description

Abstract

Overview

Key Topics

V2G application messages and sequencing: normative definitions of requests, responses, headers, error handling and session flows to enable reliable charging, renegotiation and service selection.
Network & transport requirements: IP-based communication, TCP/UDP handling, reference to applicable RFCs and protocol parameter constraints.
Security and certificate management: TLS usage, certificate and key lifecycle, root certificate requirements, cryptographic key protection and random number generation.
Presentation layer formats: XML and Efficient XML Interchange (EXI) usage and message security at the presentation layer.
Data link & WLAN security: requirements for secure data link handling for both wired and wireless (WLAN / wireless power transfer) communications.
Bidirectional and wireless charging support: messages and timing for power transfer in both AC/DC conductive charging and wireless power transfer (WPT), including Automatic Connection Device (ACD) support.
Discovery & service selection: SECC discovery protocols, supported application protocols and VAS (value added services) association.
Timing & synchronization: V2G message synchronization with IEC signaling (e.g., IEC 61851-1, IEC 61980-2) and precise timing constraints for charging sequences.

Applications

Who uses EN ISO 15118-20:

EV OEMs implementing EVCC software stacks and secure communication features.
EVSE manufacturers and charge point operators (CPOs) building SECC implementations, bidirectional chargers and roaming-capable services.
Software developers and system integrators creating charging management platforms, V2G services and firmware.
Cybersecurity teams and test labs validating TLS, certificate profiles and message security.
Standards bodies and policymakers aligning regulatory frameworks for smart charging and interoperability.

Practical use cases include secure plug-and-charge, smart grid integration, vehicle-to-home (V2H) and vehicle-to-grid (V2G) energy services, and interoperable wireless charging deployments.

Related Standards

ISO 15118-2 (superseded)
IEC 61851-1 (charging signaling)
IEC 61980-2 (wireless power transfer signaling)
Relevant IP/TCP/UDP/TLS RFCs and certificate infrastructure standards

Keywords: ISO 15118-20, EN ISO 15118-20:2022, V2G, vehicle-to-grid communication, EV charging communication, EVCC, SECC, bidirectional charging, EVSE, smart charging.

EN ISO 15118-20:2022 PDF

Technical details

Abstract

Overview

Key Topics

Applications

Related Standards

Related standards

Abstract

Overview

Key Topics

Applications

Related Standards

Related standards

Road vehicles - Vehicle to grid communication interface - Part 20: Network and application protocol requireme…

Road vehicles - Vehicle to grid communication interface - Part 20: 2nd generation network layer and applicati…

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