1、BSI Standards PublicationBS ISO 18580:2015Motorcycles Verification oftotal running resistance forceduring mode running on achassis dynamometerBS ISO 18580:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 18580:2015.The UK participation in its preparation wa
2、s 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 necessaryprovisions of a contract. Users are responsible for its correctapplication.
3、 The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 82194 3ICS 43.140Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 N
4、ovember 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 18580:2015 ISO 2015Motorcycles Verification of total running resistance force during mode running on a chassis dynamometerMotocycles Vrification de la force totale de rsistance lavancement durant les essais
5、 sur un banc dynamomtrique en mode roulageINTERNATIONAL STANDARDISO18580First edition2015-11-15Reference numberISO 18580:2015(E)BS ISO 18580:2015ISO 18580:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specif
6、ied, 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, without prior written permission. Permission can be requested from either ISO at the address below or ISO
7、s member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 18580:2015ISO 18580:2015(E)Foreword ivIntroduction v1 Scope . 12 Terms and definitions . 13 Symbo
8、ls 24 Verification . 34.1 Principle 34.2 Calculation 35 Procedure. 55.1 Tools . 55.1.1 Data logger 55.1.2 Verification software 65.2 Preparation 65.2.1 Check of chassis dynamometer . 65.2.2 Calibration of data logger . 65.3 Data collection . 65.3.1 Selection of test cycle . 65.3.2 Data logging 65.4
9、Data processing 65.5 Evaluation of chassis dynamometer . 65.6 Report . 6Annex A (informative) Example of verification calculation 7Annex B (normative) Motorcycle description 11Annex C (normative) Chassis dynamometer and instruments description 13Annex D (normative) Verification test result15Bibliogr
10、aphy .16 ISO 2015 All rights reserved iiiContents PageBS ISO 18580:2015ISO 18580:2015(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 carried out t
11、hrough 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. ISO colla
12、borates 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 different approva
13、l 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 be the sub
14、ject 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). Any tra
15、de 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 in the Te
16、chnical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 38, Motorcycles and mopeds.iv ISO 2015 All rights reservedBS ISO 18580:2015ISO 18580:2015(E)IntroductionThe ordinary cha
17、ssis dynamometer has the mechanical inertia system where the running resistance is set on the chassis dynamometer in accordance with ISO 11486 and the verification of force generated by the inertia mass is not necessary because the equivalent inertia mass is mechanically set by a flywheel. A chassis
18、 dynamometer using the electric inertia function is not equipped with such a mechanical flywheel equivalent to inertia mass system and the inertia force is electrically set in the same way of the running resistance force control. The inertia force is generated by the acceleration and/or deceleration
19、, therefore, it is necessary to check the performance of electric inertia function during the mode running test and this International Standard specifies the method to verify the chassis dynamometer operated normally. The verification method specified in this International Standard can be applicable
20、 not only for the total running resistance check during the exhaust gas and/or fuel consumption mode test but also the system installation and the periodical performance check. The accurate verification can be achieved when this method is applied to the ordinary mechanical inertia system chassis dyn
21、amometer. ISO 2015 All rights reserved vBS ISO 18580:2015BS ISO 18580:2015Motorcycles Verification of total running resistance force during mode running on a chassis dynamometer1 ScopeThis International Standard specifies the verification method of total running resistance force when the exhaust gas
22、 emissions and/or fuel consumption of motorcycles are measured during mode running on a chassis dynamometer. The performance of chassis dynamometer is verified by comparing the measured total running resistance force (measured by a chassis dynamometer absorption force) and the target total running r
23、esistance force (calculated from velocity, acceleration and/or deceleration). This International Standard is applicable when the running resistance force of a chassis dynamometer is set in accordance with ISO 11486.2 Terms and definitionsFor the purposes of this document, the following terms and def
24、initions apply.2.1equivalent inertia mass of motorcyclemimass obtained by adding the rotating mass of the front wheel to the total mass of the motorcycle, rider and instruments2.2mechanical equivalent inertia mass of chassis dynamometermbequivalent inertia mass of mechanical rotating parts of chassi
25、s dynamometer, e.g. roller and shaft and/or fly wheel2.3chassis dynamometer absorption forceFdytangential force acted on the roller surface which is calculated from a roller shaft or motor cradling torque and roller radiusNote 1 to entry: The chassis dynamometer absorption force is the running resis
26、tance force for a chassis dynamometer equipped with a mechanical flywheel equivalent inertia mass system and is sum of running resistance force and inertia force generated by motorcycles for a chassis dynamometer using the electric inertia function.2.4total friction loss of a chassis dynamometerFffr
27、iction and aerodynamic loss of rotating parts of chassis dynamometer, e.g. bearings and roller(s)2.5running resistance forcerolling resistance and aerodynamic loss of motorcycle on flat surface2.6inertia forceforce generated by inertia mass of motorcycle or chassis dynamometer during acceleration an
28、d/or decelerationINTERNATIONAL STANDARD ISO 18580:2015(E) ISO 2015 All rights reserved 1BS ISO 18580:2015ISO 18580:2015(E)2.7total running resistance forcesum of running resistance force and inertia force of motorcycle2.8target total running resistance forceFtgtotal running resistance force calculat
29、ed in accordance with equivalent inertia mass of motorcycle, velocity, acceleration and/or deceleration2.9measured total running resistance forceFmsum of the chassis dynamometer absorption force, total friction loss of chassis dynamometer and an inertia force generated by the mechanical equivalent i
30、nertia mass of chassis dynamometer2.10target integral workWtgintegral work calculated in accordance with measured velocity and Ftgduring test mode running, in kilo joule2.11measured integral workWmintegral work calculated in accordance with measured velocity and Fmduring test mode running, in kilo j
31、oule3 SymbolsTable 1 SymbolsSymbols Definition UnitA slope of the regression line a rolling resistance of front wheel NB intercept of the regression line b coefficient proportional to motorcycle speed N/(km/h)c aerodynamic drag coefficient N/(km/h)2eWintegral work error %Fdytangential force acted on
32、 the roller surface NFffriction and aerodynamic loss of rotating parts of chassis dynamometer NFtgtarget total running resistance force NFtg,ithe i-th data of Ftgdata sets NFmmeasured total running resistance force NFm,ithe i-th data of Fmdata sets Nmbequivalent inertia mass of mechanical rotating p
33、arts of chassis dynamometer kgmimass obtained by adding the rotating mass of the front wheel to the total mass of the motorcycle, rider and instrumentskgT time sV roller rotational speed km/hWtgtarget integral work JWmmeasured integral work J2 ISO 2015 All rights reservedBS ISO 18580:2015ISO 18580:2
34、015(E)Symbols Definition Unit correlation coefficient standard deviation covrelative standard deviation (cov: coefficient of variation) %4 Verification4.1 PrincipleThe equivalence between the target and measured total running resistance force is verified by the linear regression statistical analysis
35、. Data combination of target and measured total running force shall be plotted as shown in Figure 1 and the performance of chassis dynamometer shall be evaluated from the slope and intercept of the regression line, correlation coefficient and relative standard deviation.Key1regression line AF B+tgX
36、target running resistance force NY measured running resistance force NFigure 1 Image of relationship between target and measured total running resistance force4.2 Calculation4.2.1 Data sets of speed, chassis dynamometer absorption force and total friction loss of a chassis dynamometer shall be simul
37、taneously measured during the mode running in a time series. If the total friction loss of a chassis dynamometer cannot be simultaneously measured, the total friction loss shall be determined from the relationship between speed and total friction loss which is obtained prior to the test.4.2.2 Both t
38、arget and measured total running resistance force shall be calculated from adequate data sets of speed, chassis dynamometer absorption force and total friction loss of a chassis dynamometer by Formulae (1) and (2), respectively.Table 1 (continued) ISO 2015 All rights reserved 3BS ISO 18580:2015ISO 1
39、8580:2015(E)FabV cV mdVdttg i=+ +2(1)FFFmdVdtmdyf b=+ (2)4.2.3 The relationship between target and measured total running resistance force obtained in 4.2.2 shall be plotted as shown in Figure 1. The slope and intercept of the regression line, correlation coefficient and relative standard deviation
40、shall be calculated in accordance with following formulae using all data sets measured during the mode running.A shall be calculated in accordance with Formula (3).AFF FF FF=()= = tg,iinm,iintg,i m,itg,iinintgn212111, iintg,iin2112=F(3)B shall be calculated in accordance with Formula (4).BFF FFFF=()
41、=nntg,i m,itg,im,ii1ni1nintg,i tg,ii1212ni1n=(4) shall be calculated in accordance with Formula (5). =()coscov,FFtg m12(5)where1221=()=FFtg,i tginn;222=()=FFm,imi1nn;cov,FFFFFFtg mtg,i tg m,imi=1nn()=()()whereFFtgtg,iinn=114 ISO 2015 All rights reservedBS ISO 18580:2015ISO 18580:2015(E)FFmm,iinn=11c
42、ovshall be calculated in accordance with Formula (6).cov=Fm100 (6)where =EEm,iminn21EFAF Bm,im,i tg,i=+()EEmm,iinn=114.2.4 The equivalence between the measured and target total running resistance force shall be evaluated by comparison with tolerances of slope and intercept of the regression line, co
43、rrelation coefficient and relative standard deviation.4.2.5 Both target and measured integral work shall be calculated from adequate data sets of speed, chassis dynamometer absorption force and total friction loss of a chassis dynamometer by Formulae (7) and (8), respectively. The integral work erro
44、r, ew, shall be calculated in accordance with Formula (9).WnFVtgsampletg,i ii=1n=13 600() (7)WnFVnmsamplem,iii=1=13 600() (8)eWWWwmtgtg=100 (9)wherensampleis the number of data measured in one second.5 Procedure5.1 Tools5.1.1 Data loggerThe data logger shall be capable of sampling and logging the si
45、gnals of the chassis dynamometer roller speed, chassis dynamometer absorption force and chassis dynamometer friction loss at the frequency of at least 50 ms. If the signal of chassis dynamometer friction loss cannot be logged simultaneously, the functions of speed obtained prior to the test shall be
46、 used for the verification. The memory capacity for data logging shall be large enough to store all the data during the test cycle. Data conversion system shall be the A/D conversion. It is desirable to use a stand-alone system, while a built-in system is permissible. ISO 2015 All rights reserved 5B
47、S ISO 18580:2015ISO 18580:2015(E)5.1.2 Verification softwareThe verification software shall be capable of the processing of data in accordance with the principle given in 4.1 to 4.2. An example of data processing is shown in Annex A.5.2 Preparation5.2.1 Check of chassis dynamometerCheck that roller
48、speed, absorption force and equivalent inertia mass are calibrated in accordance with the manufacturers recommendation.5.2.2 Calibration of data loggerTransmit the signals of the roller speed and the absorption force to the data logger, and calibrate the data logger so that the values indicated at t
49、he chassis dynamometer coincide with the measured values taken into the logger.5.3 Data collection5.3.1 Selection of test cycleSelect one test cycle for exhaust emission and fuel consumption measurement.5.3.2 Data loggingCollect and log data during the test cycle continuously with a constant interval.5.4 Data processingProcess the logged data with the verification software as specified in 5.1.2 to obtain a result. (Se
