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1、 Reference number ISO 11486:2006(E) ISO 2006 INTERNATIONAL STANDARD ISO 11486 Second edition 2006-09-01 Motorcycles Methods for setting running resistance on a chassis dynamometer Motocycles Mthodes pour fixer la rsistance lavancement sur un banc dynamomtrique Copyright International Organization fo
2、r Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 08:53:56 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11486:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe
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5、has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2006 All rights reserved. Unless otherwise specified, no part of this publication may b
6、e reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing 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. +
7、41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 08:53:56 MDT
8、No reproduction or networking permitted without license from IHS -,-,- ISO 11486:2006(E) ISO 2006 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 1 4 Symbols. 2 5 Test motorcycle, chassis dynamometer and instruments. 3 6
9、 Required accuracy of measurements. 4 7 Road test 4 7.1 Requirement for road . 4 7.2 Ambient conditions for the road test 4 7.3 Reference speed. 5 7.4 Specified speed. 5 7.5 Coastdown starting speed. 5 7.6 Coastdown time measurement beginning speed and ending speed 5 7.7 Preparation of test motorcyc
10、le 5 7.8 Rider and riding position . 6 7.9 Measurement of coastdown time 6 8 Data processing 8 8.1 Calculation of running resistance force. 8 8.2 Running resistance curve fitting. 8 8.3 Target running resistance force for chassis dynamometer setting 8 9 Chassis dynamometer setting derived from on-ro
11、ad coastdown measurements. 8 9.1 Requirements for the equipment 8 9.2 Inertia mass setting 9 9.3 Warming up of chassis dynamometer 9 9.4 Adjustment of tyre pressures 9 9.5 Motorcycle warming up 9 9.6 Procedures for setting chassis dynamometer 9 9.7 Verification of chassis dynamometer. 12 10 Chassis
12、dynamometer setting using the running resistance table. 12 10.1 Applicability. 12 10.2 Requirements for the equipment 12 10.3 Setting the running resistance force on the chassis dynamometer . 14 10.4 The specified speed for the chassis dynamometer 14 10.5 Verification of chassis dynamometer. 14 Anne
13、x A (normative) Motorcycle description 15 Annex B (normative) Chassis dynamometer and instruments description. 17 Annex C (informative) Record of coastdown time and chassis dynamometer setting. 19 Bibliography. 22 Copyright International Organization for Standardization Provided by IHS under license
14、 with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 08:53:56 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11486:2006(E) iv ISO 2006 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of natio
15、nal standards bodies (ISO member bodies). 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. Internati
16、onal organizations, governmental and 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. International Standards are drafted in accordance with the rul
17、es given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at
18、least 75 % of the member bodies casting a vote. Attention is drawn 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. ISO 11486 was prepared by Technical Committee ISO/TC
19、22, Road vehicles, Subcommittee SC 22, Motorcycles. This second edition cancels and replaces the first edition (ISO 11486:1993), which has been technically revised. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for R
20、esale, 04/16/2007 08:53:56 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11486:2006(E) ISO 2006 All rights reserved v Introduction While ISO 11486:1993 gave only a running resistance setting method by coastdown method for the purpose of fuel consumption measurement, t
21、his edition of ISO 11486 has been prepared with the aim of establishing the general setting method that is usable for both exhaust emission testing and fuel consumption testing covering high-speed range driving. In addition to the coastdown method, the table method is introduced in this edition of I
22、SO 11486. In the coastdown method, the running resistance of each motorcycle is measured individually on the road, and the measured running resistance is reproduced on a chassis dynamometer. The table method is a simple setting method, where the running resistance value of the motorcycle is determin
23、ed only with its equivalent inertia mass. When this International Standard is applied to the exhaust emission test or the fuel consumption test, it is essential to follow the requirements specified in those test methods. Copyright International Organization for Standardization Provided by IHS under
24、license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 08:53:56 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 0
25、4/16/2007 08:53:56 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 11486:2006(E) ISO 2006 All rights reserved 1 Motorcycles Methods for setting running resistance on a chassis dynamometer 1 Scope This International Standard specifies the measureme
26、nt method for determining the motorcycle running resistance on the road, and two methods of setting the chassis dynamometer with the motorcycle running resistance. It is applicable to motorcycles as defined in ISO 3833. 2 Normative references The following referenced documents are indispensable for
27、the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3833, Road vehicles Types Terms and definitions ISO 7117, Motorcycles Measurement of maximum speed 3 T
28、erms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 running resistance F total force resistant to a running motorcycle which, when measured by the coastdown method, includes the friction forces in the drive-train 3.2 reference speed v0 motorcycle sp
29、eed at which the running resistance of the motorcycle is calculated and then used for setting the chassis dynamometer 3.3 specified speed v motorcycle speed at which the running resistance on the road is measured to determine the running resistance curve 3.4 motorcycle kerb mass mk motorcycle dry ma
30、ss to which is added the mass of the following: fuel: tank filled at least to 90 % of the capacity specified by the manufacturer; Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 08:53:56 MDTNo re
31、production or networking permitted without license from IHS -,-,- ISO 11486:2006(E) 2 ISO 2006 All rights reserved oils and coolant: filled as specified by the manufacturer; auxiliary equipment usually supplied by the manufacturer in addition to that necessary for normal operation tool-kit, carrier(
32、s), windscreen(s), protective equipment, etc. 3.5 motorcycle reference mass mref kerb mass of the motorcycle increased by a uniform figure of 75 kg, which represents the mass of a rider 4 Symbols For the purposes of this document, the symbols in Table 1 apply. Table 1 Symbols Symbol Definition Unit
33、a The coefficient of polygonal function b The coefficient of polygonal function c The coefficient of polygonal function aT The rolling resistance force of front wheel N bT The coefficient of aerodynamic N/(km/h)2 dT The relative air density under test conditions d0 The standard ambient relative air
34、density F The running resistance force N FE The set running resistance force on the chassis dynamometer N FE(v0) The set running resistance force at the reference speed on the chassis dynamometer N FE(vi) The set running resistance force at the specified speed on the chassis dynamometer N Ff The tot
35、al friction loss N Ff(v0) The total friction loss at the reference speed N Fj The running resistance force N Fj(v0) The running resistance force at the reference speed N Fpau The braking force of the power absorbing unit N Fpau(vj) The braking force of the power absorbing unit at the specified speed
36、 N Fpau(v0) The braking force of the power absorbing unit at the reference speed N FT The running resistance force obtained from the running resistance table N F* The target running resistance force N F*j The target running resistance force at the specified speed N F*(v0) The target running resistan
37、ce force at the reference speed on the chassis dynamometer N F*(vi) The target running resistance force at the specified speed on the chassis dynamometer N f0 The rolling resistance N f*0 The corrected rolling resistance in the standard ambient conditions N f2 The coefficient of aerodynamic drag N/(
38、km/h)2 f*2 The corrected coefficient of aerodynamic drag in the standard ambient conditions N/(km/h)2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 08:53:56 MDTNo reproduction or networking per
39、mitted without license from IHS -,-,- ISO 11486:2006(E) ISO 2006 All rights reserved 3 Table 1 (continued) Symbol Definition Unit K0 The temperature correction factor for rolling resistance m The test motorcycle mass kg ma The actual mass of the test motorcycle kg mi The equivalent inertia mass kg m
40、fi The flywheel equivalent inertia mass kg mk The motorcycle kerb mass kg mr The equivalent inertia mass of all the wheels kg mref The motorcycle reference mass kg mrid The rider mass kg mrf The rotating mass of the front wheel kg mr1 The equivalent inertia mass of the rear wheel and the motorcycle
41、parts rotating with the wheel kg p0 The standard ambient pressure kPa pT The mean ambient pressure during the test kPa TT The mean ambient temperature during the test K T0 The standard ambient temperature K v The specified speed km/h vj The specified speeds which are selected for coastdown time meas
42、urement km/h v0 The reference speed km/h v1 The speed at which the measurement of the coastdown time begins km/h v2 The speed at which the measurement of the coastdown time ends km/h TE The corrected coastdown time at the inertia mass (mi+mr1) s Ti The average coastdown time at the specified speed s
43、 Tj The average coastdown time of the two tests s Troad The target coastdown time s t The coastdown time s t The mean coastdown time on the chassis dynamometer without absorption s tE The mean coastdown time on the chassis dynamometer at the reference speed s tai The coastdown time measured during t
44、he first road test s tbi The coastdown time measured during the second road test s ti The coastdown time corresponding to the reference speed s v The coastdown speed interval (2v = v1 v2) km/h The chassis dynamometer setting error 0 The standard relative ambient air volumetric mass kg/m3 5 Test moto
45、rcycle, chassis dynamometer and instruments A full description of the motorcycle shall be provided in accordance with Annex A. A full description of the chassis dynamometer and instruments shall be provided in accordance with Annex B. Copyright International Organization for Standardization Provided
46、 by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 08:53:56 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11486:2006(E) 4 ISO 2006 All rights reserved 6 Required accuracy of measurements Measurements shall be made to the accuracies
47、 as specified in Table 2. Table 2 Required accuracy of measurements Parameter At measured value Resolution a) Running resistance force, F +2 % b) Motorcycle speed (v1,v2) 1 % 0,45 km/h c) Coastdown speed interval 2v = v1 v2 1 % 0,10 km/h d) Coastdown time (t) 0,5 % 0,01 s e) Total motorcycle mass mk
48、 + mrid 1,0 % 1,4 kg f) Wind speed 10 % 0,1 m/s g) Wind direction 5 deg. h) Ambient temperature 2 K i) Barometric pressure 0,2 kPa 7 Road test 7.1 Requirement for road The test road shall be flat, level, straight and smoothly paved. The road surface shall be dry and free of obstacles or wind barriers that might impede the measurement of the running resistance. The slope of the