ISO 15118-4-2018 PDF

Full title and description

Road vehicles — Vehicle to grid communication interface — Part 4: Network and application protocol conformance test (ISO 15118-4:2018). This part of the ISO 15118 series specifies conformance tests (an Abstract Test Suite) for implementations of the application- and network-layer communication between an electric vehicle and charging equipment (EVCC and SECC), describing capability and behavior test cases and a test architecture for protocol conformance verification.

Abstract

ISO 15118-4:2018 defines an Abstract Test Suite (ATS) to verify that a System Under Test (SUT) implementing EVCC or SECC according to ISO 15118-2 meets the static capability requirements and dynamic behavioral requirements of the protocol. Test cases are specified primarily in TTCN-3 for OSI Layer 3 and above; Layer 1/2 conformance tests are covered by ISO 15118-5. The standard focuses on protocol conformance (not performance, robustness or power-flow behavior) and does not provide exhaustive testing but increases confidence in interworking.

General information

• Status: Published; reviewed and confirmed current.
• Publication date: February 2018 (Edition 1, 2018-02).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.120 (Electric road vehicles).
• Edition / version: Edition 1 (2018).
• Number of pages: 1,459 pages (official ISO record).

Scope

Specifies conformance tests for the network and application protocol defined in ISO 15118-2. The document provides an Abstract Test Suite to check observable capabilities and behaviors of EV/charging-station protocol implementations (EVCC/SECC). It describes a test architecture and TTCN-3 test case specifications for OSI Layer 3 and above; tests for Layer 1 and 2 are handled in ISO 15118-5. The standard excludes performance, robustness, physical power-flow tests and detailed tests of referenced external standards (e.g., IETF RFCs).

Key topics and requirements

• Abstract Test Suite (ATS) structure for conformance testing of EVCC and SECC implementations.
• Capability tests to compare observable features against static conformance requirements in ISO 15118-2.
• Behavior tests to exercise dynamic protocol requirements and verify runtime messaging/flows.
• TTCN-3-based test case specifications for OSI Network and Application Layers.
• Test architecture description and mappings to ISO 15118-5 for Layer 1/2 overlap.
• Explicit exclusion of performance/robustness assessment and power-flow evaluation.

Typical use and users

Used by test laboratories, certification bodies, EV OEM software teams, EVSE (charging station) manufacturers, integration/QA teams and tool vendors developing conformance test systems. Organizations use ISO 15118-4 to construct test suites, validate protocol stacks, and increase confidence in multi-vendor interoperability of the network/application layers.

Related standards

Part of the ISO 15118 series (notably ISO 15118-1 general/use-cases, ISO 15118-2 network & application requirements, ISO 15118-3 physical/data link requirements, and ISO 15118-5 data link/physical conformance tests). It also relates to standards for conductive charging (e.g., IEC/EN 61851) and to referenced protocol specifications (IETF RFCs, TLS, V2G-PKI concepts). Subsequent parts of the 15118 family (including 15118-20) cover next-generation network/application requirements.

Keywords

ISO 15118-4, vehicle-to-grid, V2G, EVCC, SECC, conformance test, Abstract Test Suite, ATS, TTCN-3, network layer, application layer, EV charging communication.

FAQ

Q: What is this standard?

A: ISO 15118-4:2018 is the conformance-test part of the ISO 15118 vehicle-to-grid communication family; it defines an Abstract Test Suite and test architecture for verifying network- and application-layer protocol conformance of EV and EVSE implementations.

Q: What does it cover?

A: It covers capability and behavior tests (expressed as an ATS) for EVCC and SECC implementations referencing the protocol requirements in ISO 15118-2. It specifies TTCN-3 test cases for OSI Layer 3 and above and coordinates with ISO 15118-5 for Layer 1/2 testing; it does not test power-flow, performance, or robustness.

Q: Who typically uses it?

A: Test labs, certification bodies, EV OEMs, charging-station manufacturers, QA/integration teams, and vendors of conformance-test tools use it to validate interoperability and protocol conformance.

Q: Is it current or superseded?

A: As of ISO's official record the 2018 edition was reviewed and confirmed current (the standard remains published). ISO records have shown draft activity for a replacement (ISO/DIS 15118-4) in the standards pipeline at various times, but the 2018 edition is the published, current conformance-test document; users should check ISO or national standards bodies for any new amendments or replacements before relying on the standard for formal certification.

Q: Is it part of a series?

A: Yes — ISO 15118 is a multipart standard for vehicle-to-grid communication. Part 4 is the conformance-test document; other parts define requirements (e.g., -1, -2, -3), physical/data-link conformance tests (-5), and later extensions (e.g., 15118-20).

Q: What are the key keywords?

A: Vehicle-to-grid, V2G, EVCC, SECC, conformance test, Abstract Test Suite (ATS), TTCN-3, network layer, application layer, interoperability.