1、BSI Standards PublicationBS ISO 11992-2:2014Road vehicles Interchange ofdigital information on electricalconnections between towingand towed vehiclesPart 2: Application layer for brakes andrunning gearBS ISO 11992-2:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation
2、 of ISO 11992-2:2014.The UK participation in its preparation was entrusted to TechnicalCommittee AUE/16, Electrical and electronic equipment.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessary
3、provisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 71429 0ICS 43.040.15Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was publi
4、shed under the authority of theStandards Policy and Strategy Committee on 30 April 2014.Amendments issued since publicationDate Text affectedBS ISO 11992-2:2014 ISO 2014Road vehicles Interchange of digital information on electrical connections between towing and towed vehicles Part 2: Application la
5、yer for brakes and running gearVhicules routiers change dinformations numriques sur les connexions lectriques entre vhicules tracteurs et vhicules tracts Partie 2: Couche dapplication pour les quipements de freinage et les organes de roulementINTERNATIONAL STANDARDISO11992-2Third edition2014-05-01Re
6、ference numberISO 11992-2:2014(E)BS ISO 11992-2:2014ISO 11992-2:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or m
7、echanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 0
8、1 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 11992-2:2014ISO 11992-2:2014(E) ISO 2014 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Symbols and abbreviated terms . 45 Gener
9、al Specifications 46 Application layer 56.1 Protocol Data Unit (PDU) specification . 56.2 Parameter group number (PGN) . 76.3 Address assignment 76.4 Message routing . 96.5 Parameters 106.6 Messages . 577 Conformance tests .727.1 General 727.2 Conformance tests for commercial vehicles . 727.3 Confor
10、mance tests for towed vehicles . 73Annex A (normative) Geometric data .75Annex B (informative) Message flow .79Bibliography .83BS ISO 11992-2:2014ISO 11992-2:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bod
11、ies). 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
12、 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.The procedures used to develop this document and those intended for its further maintenance are des
13、cribed in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn
14、 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. Details of any patent rights identified during the development of the document will be in the Introduction and/or on th
15、e ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment
16、, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical and electronic equipment.This
17、 third edition cancels and replaces the second edition (ISO 11992-2:2003), which has been technically revised. It also replaces ISO 11992-2:2003/Amd 1:2007.ISO 11992 consists of the following parts, under the general title Road vehicles Interchange of digital information on electrical connections be
18、tween towing and towed vehicles: Part 1: Physical and data-link layers Part 2: Application layer for brakes and running gear Part 3: Application layer for equipment other than brakes and running gear Part 4: Diagnostic communicationiv ISO 2014 All rights reservedBS ISO 11992-2:2014ISO 11992-2:2014(E
19、)IntroductionThis part of ISO 11992 has been established in order to define the data interchange between a commercial vehicle and its towed vehicle(s), including the communication between towed vehicles, using a Controller Area Network (CAN) serial data link as specified in ISO 11992-1 for control a
20、nd status data related to electronically controlled braking and running gear applications.It is subject to additions which will become necessary in order to keep pace with experience and technical advances. Care has been taken to ensure that these additions can be introduced in a compatible way, and
21、 care will have to be taken in the future so that such additions remain compatible with the previous versions. In particular, it can become necessary to standardize new parameters and parameter groups. ISO members can request that such new parameters and parameter groups are to be included in the fu
22、ture editions of ISO 11992. ISO 2014 All rights reserved vBS ISO 11992-2:2014BS ISO 11992-2:2014Road vehicles Interchange of digital information on electrical connections between towing and towed vehicles Part 2: Application layer for brakes and running gear1 ScopeThis part of ISO 11992 specifies th
23、e parameters and messages for electronically controlled braking systems, including anti-lock braking systems (ABS) and vehicle dynamics control systems (VDC), as well as for running gear equipment (i.e. systems for steering, suspension, and tyres), to ensure that the data communication interchange o
24、f information between road vehicles with a maximum authorized total mass greater than 3 500 kg and their towed vehicles, including the communication between (several) towed vehicles, on a dedicated network. It does not include any other communication on that network that is not related to the commun
25、ication between those vehicles.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced
26、 document (including any amendments) applies.ISO 7638 (all parts), Road vehicles Connectors for the electrical connection of towing and towed vehiclesISO 11898-1, Road vehicles Controller area network (CAN) Part 1: Data link layer and physical signallingISO 11992-1, Road vehicles Interchange of digi
27、tal information on electrical connections between towing and towed vehicles Part 1: Physical and data-link layersISO 11992-4, Road vehicles Interchange of digital information on electrical connections between towing and towed vehicles Part 4: Diagnostic communication3 Terms and definitionsFor the pu
28、rposes of this document, the terms and definitions given in ISO 11898-1, ISO 11992-1, and the following apply.3.1anti-lock braking systemABScontrol function which automatically modulates the pressure producing the braking forces at the wheels to limit the degree of wheel slip, or a system that provi
29、des an anti-lock braking function3.2anti-spin regulationASRcontrol function which automatically modulates the engine torque or the pressure producing the braking forces at the wheels to limit the degree of wheel spin, or a system that provides an anti-spin controlINTERNATIONAL STANDARD ISO 11992-2:2
30、014(E) ISO 2014 All rights reserved 1BS ISO 11992-2:2014ISO 11992-2:2014(E)3.3center-axle trailertowed vehicle equipped with a rigid towing device, and in which the axle(s) is (are) positioned close to the centre of gravity of the vehicle3.4commercial vehiclemotor vehicle which, on account of its de
31、sign and appointments, is used mainly for conveying goods and which can also tow a trailer3.5converter dollydolly unit that couples to a semi-trailer with a fifth-wheel coupling and thereby “converts” the semi-trailer to a full trailer3.6electronic braking systemEBSbraking system in which control is
32、 generated and processed as an electrical signal in the control transmission3.7electronic control unitECUelectronic item consisting of a combination of basic parts, subassemblies, and assemblies packaged together as a physically independent entity3.8full trailertowed vehicle equipped with a towing d
33、evice which can move vertically (in relation to the trailer), and in which the axle(s) is (are) positioned less close to the centre of gravity of the vehicle3.9gatewayunit connecting different networks or parts of one network and performing any necessary protocol translation3.10link trailertowed veh
34、icle with a fifth-wheel coupling, designed for towing a semi-trailer3.11network segmentpart of a network that is within the domain of a single link layer3.12nodedevice capable of sending or receiving data whose identification will be unambiguous for authentication purposes3.13running rear equipmentR
35、GEequipment of a vehicle, including steering, suspension, and tyres3.14roll-over prevention/protectionROPcontrol function to prevent roll-over situations of a vehicleNote 1 to entry: ROP is part of a VDC (3.20) function.2 ISO 2014 All rights reservedBS ISO 11992-2:2014ISO 11992-2:2014(E)Note 2 to en
36、try: In UNECE Regulation No. 13, roll-over prevention is referred to as “roll-over control”.3.15semi-trailertrailer which is designed to be coupled to a semi-trailer towing vehicle and to impose a substantial part of its total weight on the towing vehicle3.16towed vehiclenon-power-driven road vehicl
37、e which, on account of its design and appointments, is used to transport persons or goods and is intended to be towed by a motor vehicle3.17towing full trailertowed vehicle equipped with a towing device which can move vertically (in relation to the trailer), and in which the axle(s) is (are) positio
38、ned less close to the centre of gravity of the vehicle that is capable of towing another vehicle3.18towing semi-trailertrailer which is designed to be coupled to a semi-trailer towing vehicle and to impose a substantial part of its total weight on the towing vehicle that is capable of towing another
39、 vehicle3.19towing vehiclemotor vehicle or non-power-driven vehicle which tows a succeeding vehicle3.20vehicle dynamic controlVDCcontrol function as part of the braking system that reacts to stabilize the vehicle during dynamic manoeuvresNote 1 to entry: VDC has the possible sub-functions ROP (3.14)
40、 and YC (3.21).3.21yaw controlYCcontrol function to reduce an unwanted lateral movement of a vehicleNote 1 to entry: Yaw control is part of a VDC (3.20) function.Note 2 to entry: In UNECE Regulation No. 13, YC is referred to as “directional control”. ISO 2014 All rights reserved 3BS ISO 11992-2:2014
41、ISO 11992-2:2014(E)4 Symbols and abbreviated termsCAN Controller Area NetworkCAN-ID CAN identifierDA destination addressDLC data length codeDP data pageEDP extended data pageGE group extensionLSB least significant byte (or bit)MSB most significant byte (or bit)P priorityPDU Protocol Data UnitPF PDU
42、formatPGN parameter group numberPS PDU specificSA source addressTOS type of serviceUTC Universal Time Coordinate5 General SpecificationsThe data link shall be in accordance with ISO 11898-1. The physical layer shall be in accordance with ISO 11992-1.Appropriate PDUs are specified to structure the co
43、mmunication between the towing and towed vehicles interface(s). These PDUs shall be transmitted between the electronic devices (nodes) at the towing vehicle and each towed vehicle, as defined in the following sections.Each node at a vehicle shall provide logical separation between the network segmen
44、ts and any in-vehicle networks and act as a gateway to forward the messages, as specified in the following sections.Any combination of new and old towing and towed vehicles is allowed. Multiple towed vehicles can be connected in any combination. The network shall be capable of addressing any towed v
45、ehicle, including dollies. The truck operator can disconnect and connect towed vehicles at any time and any order, and the network shall adjust and respond accordingly.4 ISO 2014 All rights reservedBS ISO 11992-2:2014ISO 11992-2:2014(E)6 Application layer6.1 Protocol Data Unit (PDU) specification6.1
46、.1 GeneralThe application layer provides a string of information that is assembled as a PDU. The PDU provides a framework for organizing the information sent by means of CAN data frames.All transmitted CAN data frames shall use the extended data frame format with a 29-bit CAN-ID as defined in ISO 11
47、898-1. The PDU framework for the normal and diagnostic communications between the commercial vehicles and towed vehicles is the same as defined in Reference 1 and is specified in 6.1.2. Diagnostic communication between the towed vehicles shall use the subnet addressing PDU format as specified in 6.1
48、.3.6.1.2 PDU format for normal communication and diagnostic communication (PDU1 and PDU2)The PDU1 and PDU2 shall consist of the following fields as shown in Figure 1: a 29-bit CAN-ID with the subfields priority (P), extended data page (EDP), data page (DP), PDU format (PF), PDU specific (PS) which c
49、an be a destination address (DA) or a group extension (GE), and source address (SA); a 64-bit data field.Figure 1 PDU1 and PDU2 structureDepending on the contents of the subfields, the PDUs are classified as PDU1 or PDU2 frames as given in the following definitions.6.1.3 PDU format for subnet addressing communication (PDU3)The PDU3 shall consist of the following fields as shown in Figure 2: a 29-bit CAN-ID with the subfields priority (P), extended data page (EDP), data page (DP), type of service (TOS), desti
