ISO 15031-1:2010 道路車両—排出量関連の診断のための車両と外部機器間の通信—パート1：一般情報とユースケースの定義 | ページ 3

Introduction

0.1 Overview

ISO 15031 consists of a number of parts which, taken together, provide a coherent, self-consistent set of specifications to facilitate emissions-related diagnostics. Parts 2 through 7 are based on SAE recommended practices. This part of ISO 15031 provides an introduction to the series of International Standards and the reference to the SAE Digital Annexes (DA).

Such standardization is of benefit to many sectors of the automotive industry, including service technicians who are required to work on a variety of vehicle types and component suppliers who wish to provide similar products to several vehicle manufacturers.

Some of the documents have a wider scope than just purely emissions-related issues. The legislator is the adequate authority to make the appropriate references.

ISO 15031 includes the communication between the vehicle's on-board diagnostic (OBD) systems and an external (off-board) “generic” test equipment within the scope of the emissions-related OBD legislation.

To achieve this, it is based on the Open Systems Interconnection (OSI) Basic Reference Model in accordance with 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 15031 are broken into the following layers in accordance with Table 1:

• diagnostic services (layer 7), specified in
  • ISO 15031-5 (emissions-related OBD);
  • ISO 27145-3 (WWH-OBD);

• presentation layer (layer 6), specified in

  • ISO 15031-2, SAE J1930-DA;
  • ISO 15031-5, SAE J1979-DA;
  • ISO 15031-6, SAE J2012-DA (OBD);
  • ISO 27145-2, SAE J2012-DA (WWH-OBD);

• session layer services (layer 5), specified in

  • ISO 14229-2 support ISO 15765-4 and ISO 14230-4 protocol;
  • ISO 14229-2 are not applicable to the SAE J1850 and ISO 9141-2 protocols;

• transport layer services (layer 4), specified in

  • ISO 15765-4, ISO 15765-2 Transport protocol and network layer services;
  • SAE J1850 defined in ISO 15031-5;
  • ISO 9141-2 defined in ISO 15031-5;
  • ISO 14230-4 defined in ISO 15031-5;

• network layer services (layer 3), specified in

  • ISO 15765-4, ISO 15765-2 Transport protocol and network layer services;
  • SAE J1850 defined in ISO 15031-5;
  • ISO 9141-2 defined in ISO 15031-5;
  • ISO 14230-4 defined in ISO 15031-5;

• data link layer (layer 2), specified in

  • ISO 15765-4, ISO 11898-1 and ISO 11898-2;
  • SAE J1850;
  • ISO 9141-2;
  • ISO 14230-2;

• physical layer (layer 1), specified in

  • ISO 15765-4, ISO 11898-1 and ISO 11898-2;
  • SAE J1850;
  • ISO 9141-2;
  • ISO 14230-1.

0.2 SAE document reference concept

ISO 15031 references several SAE documents which contain all terms, data and DTC (diagnostic trouble code) definitions.

This is illustrated in Figure 1. Additional information on the content of the referenced documents is given below:

• SAE J1930: the document is concerned with a procedure for naming objects and systems and with the set of words from which names are built. It references SAE J1930-DA, which contains all standardized naming objects, terms and abbreviations.
• SAE J1979: the document is concerned with the definition of emissions-related diagnostic services (diagnostic test modes). It references SAE J1979-DA, which contains all standardized data items like PIDs, Test Ids, Monitor Ids and InfoType Ids.
• SAE J2012: the document is concerned with the procedure for defining emissions-related DTCs. It references SAE J2012-DA, which contains all standardized data items like DTCs and FTBs.

0.3 SAE Digital Annex revision procedure

New emissions-related regulatory requirements drive new in-vehicle technology to lower emissions. New technology-related OBD monitor data and DTCs need to be standardized to support the external (off-board) “generic” test equipment. All relevant information is proposed by the automotive industry represented by members of the appropriate SAE task force.

ISO 15031-2, ISO 15031-5 and ISO 15031-6 reference a “Change Request Form” to be used for new data items to be defined by the SAE task force for standardization. The standardized data items will be defined in SAE J1930-DA, SAE J1979-DA and SAE J2012-DA. Once the information has been balloted and approved the documents will be published on the SAE Store Web Site.

The revision request forms and instructions for updating the registers to all parts of ISO 15031 can be obtained on the Registration Authority's website at:

• for Part 2: http://www.sae.org/servlets/works/committeeHome.do?comtID=TEVDS7 The column titled “Resources” shows a document with the title: J1930-DA_Revision_Request_Form.doc. Double click on the name and you will be asked to download the document with the filename: SAE_J1930-DA_Revision_Request_Form.doc
• for Part 5: http://www.sae.org/servlets/works/committeeHome.do?comtID=TEVDS14 The column titled “Resources” shows a document with the title: J1979-DA_Revision_Request_Form.doc. Double click on the name and you will be asked to download the document with the filename: SAE_J1979-DA_Revision_Request_Form.doc
• for Part 6: http://www.sae.org/servlets/works/committeeHome.do?comtID=TEVDS9 The column titled “Resources” shows a document with the title: J2012-DA_Revision_Request_Form.doc. Double click on the name and you will be asked to download the document with the filename: SAE_J2012-DA_Revision_Request_Form.doc

Fill out the revision request form with your request.

Please send an email with the completed revision request form as an attachment to:

SAE Headquarters

755 West Big Beaver Road

Suite 1600

Troy, MI 48084-4093, USA

Fax: +1 (248) 273-2494

Email: saej1930@sae.org

Email: saej1979@sae.org

Email: saej2012@sae.org