ISO 27145-1:2012

Road vehicles — Implementation of World-Wide Harmonized On-Board Diagnostics (WWH-OBD) communication requirements — Part 1: General information and use case definition

This part of ISO 27145 provides an overview of the structure and the partitioning of the different parts of ISO 27145 and shows the relationship between the parts. In addition, it outlines the use case scenarios where the ISO 27145 series is used. All terminology that is common throughout the ISO 27145 series is also outlined. ISO 27145 is intended to become the single communication standard for access to OBD-related information. To allow for a smooth migration from the existing communication standards to this future world-wide communication standard, the initial communication concept is based on the ISO 15765 series, i.e. Diagnostic communication over Control Area Network (DoCAN). The intention is for the future communication concept to be based on the ISO 13400 series, i.e. Diagnostic communication over Internet Protocol (DoIP) utilizing Ethernet. In view of the usage of standard network layer protocols, future extensions to optional physical layers (e.g. wireless) are possible. ISO 27145 has been extended to define the world-wide harmonized On-Board Diagnostics (OBD) communication standard. Based on the results of the initialization, the external test equipment determines which protocol and diagnostic services are supported by the vehicle's emissions-related system, i.e. — legislated OBD: ISO 15031 series (based on DoCAN), and — legislated WWH-OBD: ISO 27145 series (based on DoCAN and DoIP). IMPORTANT — Use cases deriving from country-specific implementation of Global

Véhicules routiers — Mise en application des exigences de communication pour le diagnostic embarqué harmonisé à l'échelle mondiale (WWH-OBD) — Partie 1: Informations générales et définition de cas d'usage

General Information

• Status: Published
• Publication Date: 13-Aug-2012
• ICS: 43.040.10 - Electrical and electronic equipment
• ICS: 43.180 - Diagnostic, maintenance and test equipment
• Technical Committee: ISO/TC 22/SC 31 - Data communication
• Drafting Committee: ISO/TC 22/SC 31/WG 2 - Vehicle diagnostic protocols
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 05-Mar-2024

Relations

• Revises: ISO/PAS 27145-1:2006 - Road vehicles — Implementation of WWH-OBD communication requirements — Part 1: General information and use case definition
• Effective Date: 15-Apr-2008

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 27145-1
First edition
2012-08-15
Road vehicles — Implementation of
World-Wide Harmonized On-Board
Diagnostics (WWH-OBD) communication
requirements —
Part 1:
General information and use case definition
Véhicules routiers — Mise en application des exigences de
communication pour le diagnostic embarqué harmonisé à l’échelle
mondiale (WWH-OBD) — Partie 1: Informations générales et définition
de cas d’usage
Reference number
ISO 27145-1:2012(E)
©
ISO 2012

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ISO 27145-1:2012(E)
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ISO 27145-1:2012(E)
Contents Page
Foreword .iv
0 Introduction . v
0.1 Overview . v
0.2 SAE document reference concept . v
0.3 SAE digital annex revision procedure . vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Abbreviated terms . 3
4 Conventions . 4
5 Document overview . 4
6 WWH-OBD use case overview . 7
6.1 Overview . 7
6.2 WWH-OBD use case clusters . 7
7 WWH-OBD use case definition . 8
7.1 UC 1 — Information about the emissions-related OBD system state . 8
7.2 UC 2 — Information about active and confirmed emissions-related malfunctions . 9
7.3 UC 3 — Information related to diagnosis for the purpose of repair .10
8 Vehicle on-board diagnostic . 11
8.1 VOBD definition . 11
8.2 The VOBD system . 11
8.3 The VOBD data set .14
8.4 The VOBD access method .
...