WWH-OBD ISO27145-4中英文版

ISO27145-4

中英文版

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INTERNATIONAL

STANDARD

ISO

27145-4

First edition

2012-08-15

Road vehicles — Implementation of

World-Wide Harmonized On-Board

Diagnostics (WWH-OBD) communication

requirements —

Part 4:

Connection between vehicle and test

equipment 车辆与测试设备的连接

Véhicules routiers — Mise en application des exigences de

communication pour le diagnostic embarqué harmonisé à l’échelle

mondiale (WWH-OBD) —

Partie 4: Connexion entre véhicule et équipement d’essai

Reference number

ISO 27145-4:2012(E)

ISO 2012

ISO 27145-4:2012(E) 
III 
© ISO 2012 – All rights reserved 
 
 
 
 
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 .................................................................................................................................. 2 
4 
Conventions ............................................................................................................................................ 3 
5 
Document overview ............................................................................................................................... 3 
6 
Vehicle and external test equipment connection requirements........................................................ 4 
6.1 
Overview ................................................................................................................................................. 4 
6.2 
Data link independent requirements .................................................................................................... 5 
6.3 
Support of only one WWH-OBD-compliant external test equipment at a time ................................ 5 
7 
Wired CAN connection based on ISO 15765-4 .................................................................................... 5 
7.1 
Network scenario requirements ........................................................................................................... 5 
7.2 
Initialization sequence ........................................................................................................................... 5 
7.3 
ISO 27145-3 WWH-OBD protocol validation sequence ...................................................................... 5 
7.4 
Application layer — DoCAN .................................................................................................................. 5 
7.5 
Presentation layer .................................................................................................................................. 6 
7.6 
Session layer .......................................................................................................................................... 7 
7.7 
Transport layer ....................................................................................................................................... 7 
7.8 
Network layer .......................................................................................................................................... 8 
7.9 
Data link layer ......................................................................................................................................... 8 
7.10 
Physical layer ......................................................................................................................................... 8 
7.11 
Diagnostic connector............................................................................................................................. 8 
8 
Wired Ethernet connection based on ISO 13400 ................................................................................ 8 
8.1 
Network scenario requirements ........................................................................................................... 8 
8.2 
Initialization sequence ........................................................................................................................... 9 
8.3 
ISO 27145-3 WWH-OBD protocol validation sequence .................................................................... 12 
8.4 
Application layer — DoIP .................................................................................................................... 13 
8.5 
Presentation layer ................................................................................................................................ 14 
8.6 
Session layer ........................................................................................................................................ 14 
8.7 
Transport layer ..................................................................................................................................... 15 
8.8 
Network layer ........................................................................................................................................ 16 
8.9 
Data link layer ....................................................................................................................................... 16 
8.10 
Physical layer ....................................................................................................................................... 16 
8.11 
Diagnostic connector........................................................................................................................... 16 
Bibliography ...................................................................................................................................................... 17 
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ISO 27145-4:2012(E)

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International

Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 27145-4 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical

and electronic equipment.

This first edition of ISO 27145-4 cancels and replaces ISO/PAS 27145-4:2006, which has been technically revised.

ISO 27145 consists of the following parts, under the general title Road vehicles — Implementation of World-

Wide Harmonized On-Board Diagnostics (WWH-OBD) communication requirements:

— Part 1: General information and use case definition

— Part 2: Common data dictionary

— Part 3: Common message dictionary

— Part 4: Connection between vehicle and test equipment

The following parts are under preparation:

— Part 6: External test equipment

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ISO 27145-4:2012(E)

Introduction

0.1

Overview

The ISO 27145 series includes the communication between the vehicle’s on-board diagnostics (OBD) systems

and external test equipment within the scope of the World-Wide Harmonized On-Board Diagnostics Global

Technical Regulations (WWH-OBD GTR).

It has been established in order to apply the unified diagnostic services (specified in ISO 14229-1) to

WWH-OBD systems.

The ISO 27145 series includes the communication between the vehicle’s WWH-OBD systems and external

(off-board) “generic” test equipment within the scope of the country-specific regulatory requirements.

To achieve this, it is based on the Open Systems Interconnection (OSI) Basic Reference Model specified

in ISO/IEC 7498-1 and ISO/IEC 10731, which structures communication systems into seven layers. When

mapped on this model, the services specified by ISO 27145 are broken into

— diagnostic services (layer 7), specified in ISO 27145-3 with reference to ISO 14229-1,

— presentation layer (layer 6), specified in ISO 27145-2 with reference to SAE J1930-DA, SAE J1939 Companion

Spreadsheet (SPNs), SAE J1939-73:2010, Appendix A (FMIs), SAE J1979-DA, and SAE J2012-DA,

— session layer services (layer 5), specified in ISO 14229-2,

— transport layer services (layer 4), specified in this part of ISO 27145 with reference to ISO 13400-2,

ISO 15765-2 and ISO 15765-4,

— network layer services (layer 3), specified in this part of ISO 27145 with reference to ISO 15765-4,

ISO 15765-2 and ISO 13400-2,

— data link layer (layer 2), specified in this part of ISO 27145 with reference to ISO 11898-1, ISO 11898-2,

ISO 15765-4, ISO 13400-3 and IEEE 802.3, and

— physical layer (layer 1), specified in this part of ISO 27145 with reference to ISO 11898-1, ISO 11898-2,

ISO 15765-4, ISO 13400-3 and IEEE 802.3,

in accordance with Table 1.

Table 1 — WWH-OBD specification reference applicable to the OSI layers

Applicability

OSI 7 layer

WWH-OBD document reference

Seven layers

according to

ISO/IEC 7498-1 and

ISO/IEC 10731

Application (layer 7)

ISO 14229-1, ISO 27145-3

Presentation (layer 6)

ISO 27145-2,

SAE J1930-DA, SAE J1939 Companion Spreadsheet (SPNs),

SAE J1939-73:2010, Appendix A (FMIs), SAE J1979-DA, SAE J2012-DA

Session (layer 5)

ISO 14229-2

Transport (layer 4)

ISO 15765-2 DoCAN,

ISO 15765-4 DoCAN,

ISO 27145-4

ISO 13400-2 DoIP

TCP & IP

Network (layer 3)

Data link (layer 2)

ISO 11898-1 CAN DLL,

ISO 11898-2 CAN HS,

ISO 15765-4 DoCAN

ISO 13400-3 DoIP,

IEEE 802.3

Physical (layer 1)

0.2

SAE document reference concept

ISO 27145 makes reference to several SAE documents which contain the terms, data and diagnostic trouble

code (DTC) definitions.

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