1、BSI Standards PublicationBS ISO 6460-2:2014Motorcycles Measurementmethod for gaseousexhaust emissions and fuelconsumptionPart 2: Test cycles and specific testconditionsBS ISO 6460-2:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 6460-2:2014. Itsupersedes
2、BS ISO 6460-2:2007 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee AUE/14, Motor cycles and mopeds.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the nece
3、ssaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 83770 8ICS 13.040.50; 43.140Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Stand
4、ard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2014.Amendments issued since publicationDate Text affectedBS ISO 6460-2:2014 ISO 2014Motorcycles Measurement method for gaseous exhaust emissions and fuel consumption Part 2: Test cycles and specific t
5、est conditionsMotocycles Mthode de mesure des missions de gaz dchappement et de la consommation de carburant Partie 2: Conditions dessai spcifiques et cycles dessaiINTERNATIONAL STANDARDISO6460-2Second edition2014-12-01Reference numberISO 6460-2:2014(E)BS ISO 6460-2:2014ISO 6460-2:2014(E)ii ISO 2014
6、 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 mechanical, including photocopying, or posting on the internet or an intranet, with
7、out 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 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in Switze
8、rlandBS ISO 6460-2:2014ISO 6460-2:2014(E) ISO 2014 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Test cycle 1 13.1 General . 13.2 Type 1 test . 23.3 Type 2 test . 84 Test cycle 2 94.1 General . 94.2 Test room conditions . 94.3 Motorcycle classifica
9、tion 94.4 Type 1 tests . 114.5 Type 2 tests . 174.6 Test procedures . 184.7 Analysis of results 214.8 Driving cycles for type 1 tests . 235 Presentation of results 61Annex A (normative) Presentation of results for gaseous exhaust emissions .62Annex B (normative) Presentation of results of fuel consu
10、mption .65Annex C (informative) Test cycles .69Bibliography .71BS ISO 6460-2:2014ISO 6460-2:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally ca
11、rried 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
12、. 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 described in the ISO/IEC Directives, Part 1. In particular the differ
13、ent 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 to the possibility that some of the elements of this document may
14、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 the ISO list of patent declarations received (see www.iso.org/patents
15、).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, as well as information about ISOs adherence to the WTO principles
16、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 cancels and replaces the first edition (ISO 6460-2:2007), which has been te
17、chnically 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 specific test conditions Part 3: Fuel consumption measurement at a constant
18、 speediv ISO 2014 All rights reservedBS ISO 6460-2:2014ISO 6460-2:2014(E)IntroductionThis part of ISO 6460 has been prepared to provide details of the typical test cycles for measurement of gaseous exhaust emissions and fuel consumption. The measurements can be carried out by referring to this part
19、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 conditions1 ScopeThis part of ISO 6460 defines test cycles for measurement for the
20、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 piston engine) or a compression ignition engine. The test cycle 1 is equivalent t
21、o the test cycle specified in the European Union Commission Directive 2003/77/EC6and the test cycle 2 is equivalent to the test cycle specified in global technical regulations No.2 (WMTC), United Nations Economic Commission for Europe, ECE/TRANS/180/Add.29. A selection of other test cycles adopted o
22、r to be adopted by several countries is described in Annex C for information purpose.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 un
23、dated references, the latest edition of the referenced document (including any amendments) applies. ISO 4106, Motorcycles Engine test code Net powerISO 6460-1, Motorcycles Measurement method for gaseous exhaust emissions and fuel consumption Part 1: General test requirementsISO 7117, Motorcycles Mea
24、surement method for determining maximum speed3 Test cycle 13.1 GeneralThe test cycle 1 is equivalent to the test cycle specified in European Union Commission Directive 20 03/ 7 7/ E C6.a) For vehicle types with an engine capacity less than 150 cm3, the test shall be conducted by carrying out six ele
25、mentary 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 vehicle types with an engine capacity greater than or equal to 150 cm3, the test shall be co
26、nducted 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 final idling period of the extra-urban cycle.During the test, the exhaust gases shall be diluted
27、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 values) of carbon monoxide, unburnt hydrocarbons, oxides of nitrogen, and carbon dioxide can b
28、e determined.INTERNATIONAL STANDARD ISO 6460-2:2014(E) ISO 2014 All rights reserved 1BS ISO 6460-2:2014ISO 6460-2:2014(E)3.2 Type 1 test3.2.1 Operating cycle on the chassis dynamometer3.2.1.1 Description of cycleThe operating cycles on the chassis dynamometer are indicated in 3.2.4.3.2.1.2 General c
29、onditions for carrying out the cyclePreliminary 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 approximating to the theoretical cycle within the prescribed limits.3.2.1.3 Use of the gearbox3.2.1.3.1 Use of th
30、e 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 more than one gear, the engine is tested using the highest gear.b) With respect to the urban cycle, during
31、 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 at which the maximum net power output occurs. If a motorcycle reaches a speed of 20 km/h in first gear or 35
32、 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 changed at fixed motorcycle speeds, the constant speed phase which follows shall be performed with the gear whi
33、ch 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 virtual idling speed or when the engine speed has fallen to 30 % of the speed of the maximum net power, whichever
34、 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 accelerator shall be operated in such a way as to obtain as steady an acceleration as possible, so that the transmissi
35、on 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 the manufacturers recommendation.Acceleration shall continue throughout the period represented by the straight
36、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 Tolerances3.2.1.4.1 The theoretical speed shall be maintained to a tolerance of 2 km/h during all phases. Speed tolerances greater than th
37、ose 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 3.2.2.5.2 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
38、 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 shall be measured with a tolerance of 2 %.3.2.2 Procedure for chassis dynamometer tests3.2.2.1 Special conditions for c
39、arrying out the cycle3.2.2.1.1 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 close as possible to the temperature of the premises where the motorcycle was conditioned.3.2.2.1.2 The motorcycle shal
40、l 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 time in order to check that the cycles have been performed correctly.3.2.2.1.4 The temperatures of the cooling water and th
41、e crankcase oil may be recorded.3.2.2.2 Starting up the engine3.2.2.2.1 Once the preliminary operations on the equipment for collecting, diluting, analysing, and measuring the gases have been carried out, the engine is started up by means of the devices provided for that purpose, such as the choke,
42、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 commence.3.2.2.3 Use of the manual chokeThe choke shall be cut out as soon as possible and in principle before acceleration f
43、rom 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 instructions.3.2.2.4 Idling3.2.2.4.1 Manual-shift gearboxDuring periods of idling, the clutch shall be engaged and the gears sha
44、ll 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, 5 s before start of the acceleration following the idling period in question.The first idling period at the beginning of the cycle
45、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 corresponding 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
46、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 gearboxesThe manufacturers instructions for driving in town, or in their absence instructions applicable to manual gearboxes, shall be followed.3.2.2.4.3 Automatic gearboxesThe
47、 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 applies.3.2.2.5 Accelerations3.2.2.5.1 Accelerations shall be effected so as to ensure that the rate of acceleration is as constant as possi
48、ble 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 prescribed tolerances, the motorcycle shall be driven with the throttle completely open until the speed prescribed for the cycle has been reached.
49、The cycle may then continue normally.3.2.2.6 Decelerations3.2.2.6.1 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 the cycle.3.2.2.6.3 If the period of deceleration is shorter than that prescribed for the corresponding phase, the timing of the theoretical cycle is res
