1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22599-5 SANS 20049:2009Edition 2 and ECE corr. 1 ECE R49:2008Revision 4 and corr. 1 SOUTH AFRICAN NATIONAL STANDARD Uniform provisions con
4、cerning the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines for use in vehicles, and the emission of gaseous pollutants from positive-ignition engines fuelled with natural gas or liquefied petroleum gas for use in vehicles This nation
5、al standard is the identical implementation of ECE R49:2008 and ECE corrigendum 1, and is adopted with the permission of the United Economic Commission for Europe. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 156
6、8 www.sabs.co.za SABS SANS 20049:2009 Edition 2 and ECE corr. 1 ECE R49:2008 Revision 4 and corr. 1 Table of changes Change No. Date Scope ECE corr. 1 2008 Corrected to change the subclause on power absorbed at various indicated engine speeds, to change the clause on engine performance, to change th
7、e subclause on carbon flow check, to change the subclause on analytical system, to change a footnote in the subclause on diesel reference fuel for testing engines, to change the subclause on data stream information, and to change the subclause on access to OBD information. National foreword This Sou
8、th African standard was approved by National Committee SABS TC 22, Steering committee for construction of motor vehicles, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in July 2009. This SANS docume
9、nt supersedes SANS 20049:2004 (edition 1 as modified by ECE amdt 1:2002 and ECE amdt 2:2003). The text of the ECE documents is reproduced unaltered. For the compulsory application of this standard, the stringency level, the date of entry into force and any additional requirements, if needed, are pub
10、lished in the applicable compulsory specification in the Government Gazette. Any compulsory introduction of this standard by reference through national or provincial legislation should be subject to stakeholder consultation, before publication in the legislative notice and before the effective date.
11、 E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.48/Rev.4/Corr.1 6 November 2008 ENGLISH AND FRENCH ONLY AGREEMENT CONCERNING THE ADOPTION OF UNIFORM TECHNICAL PRESCRIPTIONS FOR WHEELED VEHICLES, EQUIPMENT AND PARTS WHICH CAN BE FITTED AND/OR BE USED ON WHEELED VEHICLES AND THE CONDITIONS FOR RECIPROCAL RECOGNI
12、TION OF APPROVALS GRANTED ON THE BASIS OF THESE PRESCRIPTIONS / (Revision 2, including the amendments which entered into force on 16 October 1995) _ Addendum 48: Regulation No. 49 Revision 4 - Erratum UNIFORM PROVISIONS CONCERNING THE MEASURES TO BE TAKEN AGAINST THE EMISSION OF GASEOUS AND PARTICUL
13、ATE POLLUTANTS FROM COMPRESSION-IGNITION ENGINES FOR USE IN VEHICLES, AND THE EMISSION OF GASEOUS POLLUTANTS FROM POSITIVE-IGNITION ENGINES FUELLED WITH NATURAL GAS OR LIQUEFIED PETROLEUM GAS FOR USE IN VEHICLES _ UNITED NATIONS / Former title of the Agreement: Agreement Concerning the Adoption of U
14、niform Conditions of Approval and Reciprocal Recognition of Approval for Motor Vehicle Equipment and Parts, done at Geneva on 20 March 1958. GE.08- E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.48/Rev.4/Corr.1 Regulation No. 49 page 2 Page 73, paragraph 7.2.2., the table For 24/02 read 24/03 (twice) Page 74,
15、paragraph 8.2., the table For 24/02 read 24/03 (twice) Page 337, paragraph 9.4.7.1., line 10 For 80 to 82 read 86 to 88 Page 358, paragraph A.3.1.1., line 2 For annex read Appendix Page 386, paragraph 1.2., footnote (a), line 6 (English only) For technical read statistical Page 432, paragraph 3.1.2.
16、, line 4 Page 434, paragraph 3.2.4., line 5 Page 435, paragraph 3.3.3., line 5 Page 439, paragraph 4.1., line 2 For Appendix 1 read Appendix Page 477, paragraph 4.7.2., line 3 For Table 2 read Table 3 Page 477, paragraph 4.7.2., line 5 For Table 3 read Table 4 Page 477, footnote 6/ For tables 2 and
17、3 read tables 3 and 4 - E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.48/Rev.4 13 August 2008 AGREEMENT CONCERNING THE ADOPTION OF UNIFORM TECHNICAL PRESCRIPTIONS FOR WHEELED VEHICLES, EQUIPMENT AND PARTS WHICH CAN BE FITTED AND/OR BE USED ON WHEELED VEHICLES AND THE CONDITIONS FOR RECIPROCAL RECOGNITION OF A
18、PPROVALS GRANTED ON THE BASIS OF THESE PRESCRIPTIONS / (Revision 2, including the amendments which entered into force on 16 October 1995) _ Addendum 48: Regulation No. 49 Revision 4 Incorporating all valid text up to: The 03 series of amendments Date of entry into force: 27 December 2001 The 04 seri
19、es of amendments - Date of entry into force: 31 January 2003 Supplement 1 to the 04 series of amendments - Date of entry into force: 2 February 2007 Supplement 2 to the 04 series of amendments - Date of entry into force: 12 June 2007 The 05 series of amendments Date of entry into force: 3 February 2
20、008 UNIFORM PROVISIONS CONCERNING THE MEASURES TO BE TAKEN AGAINST THE EMISSION OF GASEOUS AND PARTICULATE POLLUTANTS FROM COMPRESSION-IGNITION ENGINES FOR USE IN VEHICLES, AND THE EMISSION OF GASEOUS POLLUTANTS FROM POSITIVE-IGNITION ENGINES FUELLED WITH NATURAL GAS OR LIQUEFIED PETROLEUM GAS FOR U
21、SE IN VEHICLES _ UNITED NATIONS / Former title of the Agreement: Agreement Concerning the Adoption of Uniform Conditions of Approval and Reciprocal Recognition of Approval for Motor Vehicle Equipment and Parts, done at Geneva on 20 March 1958. GE.08- E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.48/Rev.4 Regu
22、lation No. 49 page 3 Regulation No. 49 UNIFORM PROVISIONS CONCERNING THE MEASURES TO BE TAKEN AGAINST THE EMISSION OF GASEOUS AND PARTICULATE POLLUTANTS FROM COMPRESSION-IGNITION ENGINES FOR USE IN VEHICLES, AND THE EMISSION OF GASEOUS POLLUTANTS FROM POSITIVE-IGNITION ENGINES FUELLED WITH NATURAL G
23、AS OR LIQUEFIED PETROLEUM GAS FOR USE IN VEHICLES CONTENTS REGULATION Page 1. Scope . 6 2. Definitions 7 3. Application for approval 18 4. Approval . 21 5. Specifications and tests . 30 6. Installation on the vehicle 47 7. Engine family 47 8. Conformity of production 48 9. Conformity of in-service v
24、ehicles/engines. 53 10. Penalties for non-conformity of production . 53 11. Modification and extension of approval of the approved type 53 12. Production definitely discontinued 54 13. Transitional provisions 54 14. Names and addresses of Technical Services responsible for conducting approval tests
25、and of Administrative Departments. 56 Appendix 1 - Procedure for production conformity testing when standard deviation is satisfactory 57 Appendix 2 - Procedure for production conformity testing when standard deviation is unsatisfactory or unavailable 59 Appendix 3 - Procedure for production conform
26、ity testing at manufacturers request 62 Appendix 4 - Determination of system equivalence 64 ANNEXES Annex 1 - Information document 66 Appendix 1 - Essential characteristics of the (parent) engine and information concerning the conduct of tests. 67 Appendix 2 - Essential characteristics of the engine
27、 family. 76 Appendix 3 - Essential characteristics of the engine type within the family 78 E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.48/Rev.4 Regulation No. 49 page 4 CONTENTS (continued) Page Appendix 4 - Characteristics of the engine-related vehicle parts . 85 Appendix 5 - OBD-related information 86 Ann
28、ex 2A - Communication concerning the approval or extension or refusal or withdrawal of approval or production definitely discontinued of a compression-ignition (C.I.) engine type or family (Diesel or Ethanol), or a positive-ignition (P.I.) engine type or family (NG or LPG), as a separate technical u
29、nit with regard to the emission of pollutants pursuant to Regulation No. 49, 05 series of amendments. 88 Appendix - OBD related information. 91 Annex 2B - Communication concerning the approval or extension or refusal or withdrawal of approval or production definitely discontinued of a vehicle type w
30、ith regard to the emission of gaseous and particulate pollutants pursuant to Regulation No. 49 92 Annex 3 - Arrangements of approval marks . 95 Annex 4A - Test procedure . 98 Appendix 1 - ESC and ELR test cycles. 104 Appendix 2 - ETC test cycle. 125 Appendix 3 - ETC engine dynamometer schedule 147 A
31、ppendix 4 - Measurement and sampling procedures . 187 Appendix 5 - Calibration procedure . 199 Appendix 6 Carbon flow check 219 Appendix 7 - Analytical and sampling systems. 222 Annex 4B - Test procedure for compression-ignition (C.I.) engines and positive-ignition (P.I.) engines fuelled with natura
32、l gas (N.G.) or liquefied petroleum gas (LPG) incorporating the world-wide harmonized heavy-duty certification (WHDC, global technical regulation (gtr) No. 4) 260 Appendix 1 - WHTC engine dynamometer schedule 344 Appendix 2 - Diesel reference fuel . 357 Appendix 3 - Measurement equipment . 358 Appen
33、dix 4 - Determination of system equivalence 375 Appendix 5 - Carbon flow check 377 Appendix 6 - Example of calculation procedure . 380 E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.48/Rev.4 Regulation No. 49 page 5 CONTENTS (continued) Page Annex 5 - Technical characteristics of reference fuel prescribed for
34、approval tests and to verify the conformity of production . 384 Annex 6 - Example of calculation procedure. 391 Annex 7 - Procedures for conducting the test for durability of emission control systems 414 Annex 8 - Conformity of in-service vehicles/engines 422 Annex 9A - On-board diagnostic systems (
35、OBD) 431 Appendix - On-board diagnostic (OBD) system approval tests. 445 Annex 9B - Technical requirements for on-board diagnostic systems (OBD) for diesel engines of road vehicles (WWH-OBD, gtr No. 5). 451 Appendix 1 - Approval of installation of OBD systems. 496 Appendix 2 - Malfunctions - Illustr
36、ation of the DTC status Illustation of the MI and counters activation schemes 497 Appendix 3 - Monitoring requirements . 502 Appendix 4 - Technical compliance report 507 Appendix 5 - Freeze frame and data stream information . 516 Appendix 6 - Reference standard documents. 518 Appendix 7 - Documentat
37、ion regarding OBD related information 519 E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.48/Rev.4 Regulation No. 49 page 6 1. SCOPE 1.1. This Regulation applies to vehicles of categories M and N 1/ and their engines, as shown in table A, with regard to the tests foreseen for these engines in table B. It also a
38、pplies to the installation of these engines on vehicles. Table A: APPLICABILITY Positive-ignition engines Compression-ignition engines Vehicle category 1/ Maximum mass Petrol NG (a) LPG (b) Diesel Ethanol 3.5 t - - - - - M1 3.5 t - R49 R49 R49 R49 M2 - - R49 R49 R49 or R83 (c) (d) R49 M3 - - R49 R49
39、 R49 R49 N1 - - R49 or R83 (d) R49 or R83 (d) R49 or R83 (d) R49 N2 - - R49 R49 R49 or R83 (c) (d) R49 N3 - - R49 R49 R49 R49 (a) Natural Gas. (b) Liquefied Petroleum Gas. (c) Regulation No. 83 applies only for vehicles with a reference mass 2,840 kg as an extension of an approval given for a vehicl
40、e of categories M1 or N1. 1/ (d) “R49 or R83“ means that manufacturers can obtain type approval according to this Regulation or to Regulation No. 83, see paragraph 1.2. Table B: REQUIREMENTS Positive-ignition engines Compression-ignition engines Petrol NG LPG Diesel Ethanol Gaseous pollutants - Yes
41、Yes Yes Yes Particulates - Yes (a) Yes (a) Yes Yes Smoke - - - Yes Yes Durability - Yes Yes Yes Yes In-service-conformity - Yes Yes Yes Yes OBD - Yes (b) Yes (b) Yes Yes (a) Only applicable to stage C in Table 2 of paragraph 5.2.1. (b) Application dates according to paragraph 5.4.2. 1.2. Equivalent
42、approvals The following do not need to be approved according to this Regulation, if they are part of a vehicle approved according to Regulation No. 83: (a) compression-ignition engines to be mounted in vehicles of categories N1, N2 and M2 1/ fuelled with diesel; 1/ As defined in Annex 7 to the Conso
43、lidated Resolution on the Construction of Vehicles (R.E.3), (document TRANS/WP.29/78/Rev.1/Amend.2, as last amended by Amend.4). E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.48/Rev.4 Regulation No. 49 page 7 (b) positive-ignition engines fuelled with natural gas (NG) or liquefied petroleum gas (LPG) to be mo
44、unted in vehicles of category N1. 1/ (c) vehicles of categories N1, N2 and M2 1/ fitted with compression - ignition engines fuelled with diesel and vehicles of category N1 1/ fitted with positive-ignition engines fuelled with natural gas (NG) or liquefied petroleum gas (LPG). 2. DEFINITIONS 2.1. For
45、 the purposes of this Regulation, the following definitions shall apply: 2.1.1. “approval of an engine (engine family)“ means the approval of an engine type (engine family) with regard to the level of the emission of gaseous and particulate pollutants, smoke and the on-board diagnostic (OBD) system;
46、 2.1.2. “approval of a vehicle“ means the approval of vehicle type with regard to the level of the emission of gaseous and particulate pollutants and smoke by its engine as well as the on-board diagnostic (OBD) system and the engine installation on the vehicle; 2.1.3. “rated speed“ means the maximum
47、 full load engine speed allowed by the governor, or, if such a governor is not present, the speed at which the maximum power is obtained from the engine, as specified by the manufacturer in paragraph 2. of Appendix 2 to Annex 1. 2.1.4. “vehicle type“ means a category of power driven vehicles which d
48、o not differ in such essential respects as the vehicle and engine characteristics as specified in Annex 1 of this Regulation. 2.1.5. “auxiliary emission control strategy (AECS)“ means an emission control strategy that becomes active or that modifies the base emission control strategy for a specific
49、purpose or purposes and in response to a specific set of ambient and/or operating conditions, e.g. vehicle speed, engine speed, gear used, intake temperature, or intake pressure; 2.1.6. “base emission control strategy (BECS)“ means an emission control strategy that is active throughout the speed and load operating range of the engine unless an AECS is activated. Examples for BECS are, but are not limited to: (a) engine timing map; (b) EGR map; (c) SCR catalyst reagent dosing map; 2.1.7. “combined deNOx-
