1、BSI Standards Publication BS ISO 6460-2:2014 Motorcycles Measurement method for gaseous exhaust emissions and fuel consumption Part 2: Test cycles and specific test conditionsBS ISO 6460-2:2014 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 6460-2:2014. It s
2、upersedes BS ISO 6460-2:2007 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee AUE/14, Motor cycles and mopeds. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to inclu
3、de all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2014. Published by BSI Standards Limited 2014 ISBN 978 0 580 83770 8 ICS 13.040.50; 43.140 Compliance with a British Standard cannot confer immunity from legal obligati
4、ons. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2014. Amendments issued since publication Date Text affectedBS ISO 6460-2:2014 ISO 2014 Motorcycles Measurement method for gaseous exhaust emissions and fuel consumption Part 2:
5、 Test cycles and specific test conditions Motocycles Mthode de mesure des missions de gaz dchappement et de la consommation de carburant Partie 2: Conditions dessai spcifiques et cycles dessai INTERNATIONAL STANDARD ISO 6460-2 Second edition 2014-12-01 Reference number ISO 6460-2:2014(E)BS ISO 6460-
6、2:2014ISO 6460-2:2014(E)ii ISO 2014 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2014 All 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 mechanical, including photocopying, or posting
7、 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 office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrigh
8、tiso.org Web www.iso.org Published in SwitzerlandBS ISO 6460-2:2014ISO 6460-2:2014(E) ISO 2014 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 Test cycle 1 1 3.1 General . 1 3.2 Type 1 test . 2 3.3 Type 2 test . 8 4 Test cycle 2 9 4.1 General .
9、 9 4.2 Test room conditions . 9 4.3 Motorcycle classification 9 4.4 Type 1 tests .11 4.5 Type 2 tests .17 4.6 Test procedures .18 4.7 Analysis of results 21 4.8 Driving cycles for type 1 tests .23 5 Presentation of results 61 Annex A (normative) Presentation of results for gaseous exhaust emissions
10、.62 Annex B (normative) Presentation of results of fuel consumption .65 Annex C (informative) Test cycles .69 Bibliography .71BS ISO 6460-2:2014ISO 6460-2:2014(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodi
11、es). 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 assessmen
16、t, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information. The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 22, Motorcycles. This second edition canc
17、els and replaces the first edition (ISO 6460-2:2007), which has been technically revised. ISO 6460 consists of the following parts, under the general title Motorcycles Measurement method for gaseous exhaust emissions and fuel consumption: Part 1: General test requirements Part 2: Test cycles and spe
18、cific test conditions Part 3: Fuel consumption measurement at a constant speediv ISO 2014 All rights reservedBS ISO 6460-2:2014ISO 6460-2:2014(E) Introduction This part of ISO 6460 has been prepared to provide details of the typical test cycles for measurement of gaseous exhaust emissions and fuel c
19、onsumption. The measurements can be carried out by referring to this part of ISO 6460 and to ISO 6460-1. ISO 2014 All rights reserved vBS ISO 6460-2:2014BS ISO 6460-2:2014Motorcycles Measurement method for gaseous exhaust emissions and fuel consumption Part 2: Test cycles and specific test condition
20、s 1 Scope This part of ISO 6460 defines test cycles for measurement for the gaseous exhaust emissions from motorcycles, as well as for determining the fuel consumption of motorcycles as defined in ISO 3833, equipped with a spark ignition engine (four-stroke engine, two-stroke engine, or rotary pisto
21、n engine) or a compression ignition engine. The test cycle 1 is equivalent to the test cycle specified in the European Union Commission Directive 2003/77/EC 6and the test cycle 2 is equivalent to the test cycle specified in global technical regulations No.2 (WMTC), United Nations Economic Commission
22、 for Europe, ECE/TRANS/180/Add.2 9 . A selection of other test cycles adopted or to be adopted by several countries is described in Annex C for information purpose. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable
23、for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4106, Motorcycles Engine test code Net power ISO 6460-1, Motorcycles Measurement method for gaseous exhaust emissio
24、ns and fuel consumption Part 1: General test requirements ISO 7117, Motorcycles Measurement method for determining maximum speed 3 Test cycle 1 3.1 General The test cycle 1 is equivalent to the test cycle specified in European Union Commission Directive 20 03/ 7 7/ E C 6 . a) For vehicle types with
25、an engine capacity less than 150 cm 3 , the test shall be conducted by carrying out six elementary urban cycles. The emission sampling shall begin before or at the initiation of the engine start-up procedure and end on conclusion of the final idling period of the last elementary urban cycle. b) For
26、vehicle types with an engine capacity greater than or equal to 150 cm 3 , the test shall be conducted by carrying out six elementary urban cycles and one extra-urban cycle. The emission sampling shall begin before or at the initiation of the engine start-up procedure and end on conclusion of the fin
27、al idling period of the extra-urban cycle. During the test, the exhaust gases shall be diluted with air so that the flow volume of the mixture remains constant. Throughout the test, a continuous flow of samples of the mixture shall be passed into one or more bags so that concentrations (average test
28、 values) of carbon monoxide, unburnt hydrocarbons, oxides of nitrogen, and carbon dioxide can be determined. INTERNATIONAL ST ANDARD ISO 6460-2:2014(E) ISO 2014 All rights reserved 1BS ISO 6460-2:2014ISO 6460-2:2014(E) 3.2 Type 1 test 3.2.1 Operating cycle on the chassis dynamometer 3.2.1.1 Descript
29、ion of cycle The operating cycles on the chassis dynamometer are indicated in 3.2.4. 3.2.1.2 General conditions for carrying out the cycle Preliminary test cycles shall be carried out if necessary to determine how best to actuate the accelerator and brake controls so as to achieve a cycle approximat
30、ing to the theoretical cycle within the prescribed limits. 3.2.1.3 Use of the gearbox 3.2.1.3.1 Use of the gearbox is determined as described below. a) At constant speed, the engine speed shall as far as possible remain between 50 % and 90 % of the maximum speed. If this speed can be achieved using
31、more than one gear, the engine is tested using the highest gear. b) With respect to the urban cycle, during acceleration the engine shall be tested using the gear which allows maximum acceleration. The next higher gear is engaged, at the latest, when the engine speed has reached 110 % of the speed a
32、t which the maximum net power output occurs. If a motorcycle reaches a speed of 20 km/h in first gear or 35 km/h in second gear, the next higher gear shall be engaged at these speeds.In these cases, no other change into higher gears is permitted. If, during the acceleration phase, the gears are chan
33、ged at fixed motorcycle speeds, the constant speed phase which follows shall be performed with the gear which is engaged when the motorcycle begins the constant speed phase, irrespective of the engine speed. c) During deceleration, the next lower gear shall be engaged before the engine reaches virtu
34、al idling speed or when the engine speed has fallen to 30 % of the speed of the maximum net power, whichever occurs first. First gear shall not be engaged during deceleration. 3.2.1.3.2 Motorcycles equipped with automatic gearboxes shall be tested with the highest gear engaged (drive). The accelerat
35、or shall be operated in such a way as to obtain as steady an acceleration as possible, so that the transmission engages the different gears in the normal order. The tolerances specified in 3.2.1.4 apply. 3.2.1.3.3 For carrying out the extra-urban cycle, the gearbox shall be used in accordance with t
36、he manufacturers recommendation. Acceleration shall continue throughout the period represented by the straight line connecting the end of each period of idling with the beginning of the next following period of constant speed. The tolerances given in 3.2.1.4 apply. 3.2.1.4 Tolerances 3.2.1.4.1 The t
37、heoretical speed shall be maintained to a tolerance of 2 km/h during all phases. Speed tolerances greater than those prescribed are permitted during phase changes provided that the tolerances are never exceeded for more than 0,5 s on any one occasion, in all cases subject to the provisions of 3.2.2.
38、5.2 and 3.2.2.6.3. 3.2.1.4.2 A tolerance of 0,5 s above or below the theoretical times shall be allowed.2 ISO 2014 All rights reservedBS ISO 6460-2:2014ISO 6460-2:2014(E) 3.2.1.4.3 The speed and time tolerances are combined as indicated in 3.2.4. 3.2.1.4.4 The distance travelled during the cycle sha
39、ll be measured with a tolerance of 2 %. 3.2.2 Procedure for chassis dynamometer tests 3.2.2.1 Special conditions for carrying out the cycle 3.2.2.1.1 The temperature in the premises where the chassis dynamometer bench is situated shall be between 293 K and 303 K throughout the test, and shall be as
40、close as possible to the temperature of the premises where the motorcycle was conditioned. 3.2.2.1.2 The motorcycle shall as far as possible be horizontal during the test so as to avoid any abnormal distribution of the fuel. 3.2.2.1.3 During the test, the motorcycle speed shall be plotted against ti
41、me in order to check that the cycles have been performed correctly. 3.2.2.1.4 The temperatures of the cooling water and the crankcase oil may be recorded. 3.2.2.2 Starting up the engine 3.2.2.2.1 Once the preliminary operations on the equipment for collecting, diluting, analysing, and measuring the
42、gases have been carried out, the engine is started up by means of the devices provided for that purpose, such as the choke, the starter valve, etc., in accordance with the manufacturers instructions. 3.2.2.2.2 The first cycle begins when the taking of samples and the measuring of the pump rotations
43、commence. 3.2.2.3 Use of the manual choke The choke shall be cut out as soon as possible and in principle before acceleration from 0 km/h to 50 km/h. If this requirement cannot be met, the moment of actual cut-out shall be indicated. The choke shall be adjusted in accordance with the manufacturers i
44、nstructions. 3.2.2.4 Idling 3.2.2.4.1 Manual-shift gearbox During periods of idling, the clutch shall be engaged and the gears shall be in neutral. To enable the accelerations to be performed in accordance with the normal cycle, the motorcycle shall be put in first gear, with the clutch disengaged,
45、5 s before start of the acceleration following the idling period in question. The first idling period at the beginning of the cycle consists of 6 s of idling in neutral with the clutch engaged and 5 s in first gear with the clutch disengaged. For the idling periods during each cycle, the correspondi
46、ng times are 16 s in neutral and 5 s in first gear with the clutch disengaged. The last idling period in the cycle consists of 7 s in neutral with the clutch engaged. ISO 2014 All rights reserved 3BS ISO 6460-2:2014ISO 6460-2:2014(E) 3.2.2.4.2 Semi-automatic gearboxes The manufacturers instructions
47、for driving in town, or in their absence instructions applicable to manual gearboxes, shall be followed. 3.2.2.4.3 Automatic gearboxes The selector shall not be operated at any time during the test unless the manufacturer specifies otherwise. In the latter case, the procedure for manual gearboxes ap
48、plies. 3.2.2.5 Accelerations 3.2.2.5.1 Accelerations shall be effected so as to ensure that the rate of acceleration is as constant as possible throughout the operation. 3.2.2.5.2 If the acceleration capacities of the motorcycle are not sufficient to perform the acceleration cycles within the prescr
49、ibed tolerances, the motorcycle shall be driven with the throttle completely open until the speed prescribed for the cycle has been reached. The cycle may then continue normally. 3.2.2.6 Decelerations 3.2.2.6.1 All decelerations shall be effected by completely closing the throttle, the clutch remaining engaged. The clutch shall be disengaged at a speed of 10 km/h. 3.2.2.6.2 If the period of deceleration is longer than that prescribed for the corresponding phase, the motorcycles brakes are used to keep to
