1、BS ISO 7117:2010 ICS 43.140 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Motorcycles Measurement method for determining maximum speedThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2010 B
2、SI 2010 ISBN 978 0 580 62075 1 Amendments/corrigenda issued since publication Date Comments BS ISO 7117:2010 National foreword This British Standard is the UK implementation of ISO 7117:2010. The UK participation in its preparation was entrusted to Technical Committee AUE/14, Motor cycles and mopeds
3、. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity f
4、rom legal obligations.BS ISO 7117:2010Reference number ISO 7117:2010(E) ISO 2010INTERNATIONAL STANDARD ISO 7117 Third edition 2010-02-15 Motorcycles Measurement method for determining maximum speed Motocycles Mthode de mesure pour dterminer la vitesse maximaleBS ISO 7117:2010 ISO 7117:2010(E) PDF di
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9、 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 copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedBS ISO 7117:2010 ISO 7117:2010(E) ISO 2010 All rights rese
10、rved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Symbols2 5 Standard reference conditions 2 6 Preparation of test motorcycle 3 7 Rider and riding position3 8 Measurement equipment and accuracies.3 8.1 Measurement equipment 3 8.2 Measureme
11、nt accuracies4 9 Test tracks4 9.1 General requirements .4 9.2 Composition.5 9.3 Possible shapes and specific requirements.5 10 Atmospheric conditions .7 11 Test procedure and calculation of average speed.8 11.1 General requirements .8 11.2 Measurement .8 11.3 Single-direction test 9 12 Presentation
12、of results10 12.1 The maximum speed .10 12.2 Test report10 Annex A (informative) Procedure for determining the acceleration distance 11 Annex B (normative) Presentation of results of maximum speed.15 Bibliography18 BS ISO 7117:2010 ISO 7117:2010(E) iv ISO 2010 All rights reservedForeword ISO (the In
13、ternational Organization for Standardization) is a worldwide federation of national 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 h
14、as 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 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical
15、 standardization. International Standards are drafted in accordance with the rules 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 bodi
16、es for voting. Publication as an International Standard requires approval by at 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
17、or all such patent rights. ISO 7117 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 22, Motorcycles. This third edition cancels and replaces the second edition (ISO 7117:1995), which has been technically revised. BS ISO 7117:2010 ISO 7117:2010(E) ISO 2010 All rights res
18、erved vIntroduction In this third edition of ISO 7117, all the test methods and conditions such as accuracy of the measurement system and climatic conditions are reviewed and updated for the purpose of obtaining the measurement results of higher accuracy. The test method and conditions on circle typ
19、e test tracks, which are used in several regions, are also revised substantially in view of the similarity with testing results on straight test tracks. BS ISO 7117:2010BS ISO 7117:2010 INTERNATIONAL STANDARD ISO 7117:2010(E) ISO 2010 All rights reserved 1Motorcycles Measurement method for determini
20、ng maximum speed 1 Scope This International Standard specifies the method of determining the maximum speed of a motorcycle as defined in ISO 3833. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition
21、cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 6726, Mopeds and motorcycles with two wheels Masses Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions specified in ISO 6726 and t
22、he following apply. 3.1 maximum speed v maxhighest steady speed of test motorcycle 3.2 motorcycle kerb mass m kmotorcycle dry mass to which is added the mass of the following: fuel: tank filled at least to 90 % of the capacity specified by the manufacturer; auxiliary equipment usually supplied by th
23、e manufacturer in addition to that necessary for normal operation EXAMPLES Toolkit, carrier(s), windscreen(s), protective equipment, etc. BS ISO 7117:2010 ISO 7117:2010(E) 2 ISO 2010 All rights reserved4 Symbols Table 1 Symbols Symbol Definition Unit A lenaccuracy of measurement equipment of the mea
24、surement section length m A speedresultant accuracy of speed measurement % A timeaccuracy of time measurement equipment s d Trelative air density during the test d 0relative air density at the standard reference conditions e speedresultant speed measurement error of system km/h L stlength of the mea
25、surement section of type 1, type 3 and type 5 test tracks m L st1length of the measurement section 1 of type 2 and type 4 test tracks m L st2length of the measurement section 2 of type 2 and type 4 test tracks m p Ttotal barometric pressure during test kPa p 0total barometric pressure at standard re
26、ference conditions kPa T Tair temperature during test K T 0air temperature at standard reference conditions K t time to run the measurement section s t atime to run the measurement section in direction a s t btime to run the measurement section in direction b s t itime to run the measurement section
27、 test run i s v motorcycle speed km/h v aveaverage speed of motorcycle of two-direction tests km/h v imotorcycle speed test run i km/h v maxmaximum speed of test motorcycle km/h 0air volumetric mass kg/m 35 Standard reference conditions The standard reference conditions shall be as follows: a) total
28、 barometric pressure, p 0 : 101,325 kPa; b) air temperature, T 0 : 293,15 K; c) relative humidity, H 0 : 65 %; d) air volumetric mass, 0 : 1,205 kg/m 3 ; e) relative air density, d 0 : 0,931 9. BS ISO 7117:2010 ISO 7117:2010(E) ISO 2010 All rights reserved 36 Preparation of test motorcycle 6.1 The m
29、otorcycle shall conform in all its parts and components with the production series or, if different, a full description of such differences shall be included in the test report. 6.2 The fuel feed, ignition devices and the viscosity of the oils for the moving mechanical parts shall be in accordance w
30、ith the instructions given by the motorcycle manufacturer. 6.3 The lubricants shall be those prescribed by the manufacturer; the fuel shall be the commercial grade for the type of motorcycle tested. 6.4 The motorcycle engine and transmission shall be properly run in, according to the manufacturers i
31、nstructions. 6.5 Before the test, all motorcycle parts shall be stabilized at the normal temperature for the motorcycle in use. 6.6 The test motorcycle mass shall be the motorcycle kerb mass. 6.7 The distribution of the load between the wheels shall be in accordance with the manufacturers instructio
32、ns. 6.8 When installing the measurement instruments on the motorcycle, care shall be taken to minimize their effects on the distribution of the load between the wheels and the additional aerodynamic loss. 6.9 Tyres shall be inflated to the pressure specified by the manufacturer. 7 Rider and riding p
33、osition 7.1 The rider shall wear a close-fitting suit, a protective helmet, eye protection, boots and gloves. 7.2 The rider in the conditions given in 7.1 shall have a mass of 75 kg 5 kg and be 1,75 m 0,05 m tall. 7.3 The rider shall take the normal and safe riding position which is appropriate for
34、attaining the maximum speed of the motorcycle to be tested. The position shall allow the rider at all times to have proper control of the motorcycle during the test. The position of the rider shall remain as stable as possible in order to avoid any influence on the test results. The description of t
35、he position shall be given in the test report or may be replaced with photographs (either during motion or in a static position). 8 Measurement equipment and accuracies 8.1 Measurement equipment Test equipment to measure the motorcycle speed and the ambient atmospheric conditions shall be as follows
36、: a) electronic time counter or equivalent time measurement system; b) photoelectric cell or equivalent sensor; c) measurement equipment for the distance between photoelectric cells; d) thermometer; e) barometer; f) humidity meter; g) anemometer. BS ISO 7117:2010 ISO 7117:2010(E) 4 ISO 2010 All righ
37、ts reservedThe photoelectric cell and electronic time counter system, or the equivalent system, shall be used to measure the motorcycle speed. Care shall be taken with the set-up adjustment of photoelectric cells or equivalent sensors (e.g. height of the sensors and the crossing point of the photo-b
38、eam and the motorcycle) so that the required accuracy of the length of measurement section is secured. The details of the system shall be given in the test report if the equivalent system is used. The function and accuracy of test equipment shall be checked before use in the test. 8.2 Measurement ac
39、curacies 8.2.1 Accuracy of speed measurement system The error of measured motorcycle speed is influenced by the total time to run the measurement section(s), t, the length of the measurement section(s), L st , the accuracy of time measurement equipment, A time , and the accuracy of measurement equip
40、ment of the measurement section length, A len . The length of the measurement section shall be chosen with reference to instrument accuracy and to the method of determining the running time, such that the actual speed is measured to an accuracy of 1 %. The accuracy of measurement equipment (e.g. the
41、 tape measure or the surveying instrument) of the measurement section(s) length, A len , shall be given in the test report. The accuracy of time measurement equipment, A time , is determined by the accuracy of the electronic time counter system itself and the response time of the photoelectric cell
42、sensor. A timeshall be given in the test report. 8.2.2 Measurement accuracy of ambient atmospheric conditions The accuracies of equipment used to measure the ambient atmospheric conditions shall be in accordance with Table 2. Table 2 Accuracy Parameter At measured value Resolution Wind speed 10 % 0,
43、1 m/s Wind direction 5 Ambient temperature 1 K Barometric pressure 0,2 kPa Humidity 5 % 1 % 9 Test tracks 9.1 General requirements The test shall be carried out on a roadway that allows the maximum speed to be maintained over a measurement section(s) as defined in 9.2. The entry section to the measu
44、rement section shall have the same surface and longitudinal profile as the measurement section and be long enough to permit the motorcycle to attain its maximum speed. The test track shall be flat, level and smoothly paved. The road surface shall be dry and free of obstacles or wind barriers that mi
45、ght impede the measurement of the maximum speed. The test track shall have not more than 0,5 % longitudinal slope and not more than 3 % transverse slope, excluding the deceleration section(s). The difference in altitude between any two points on the measurement section shall not exceed 1 m. However,
46、 the slope to compensate the centrifugal force of loop type and circle type test tracks may be allowed. BS ISO 7117:2010 ISO 7117:2010(E) ISO 2010 All rights reserved 5The shape and dimensions of the test track and the location of the measurement section(s) shall be given in the test report or repla
47、ced by the figure. 9.2 Composition The test track shall consist of the following sections: a) the acceleration section to reach maximum speed; b) the maximum speed measurement section; c) the deceleration section to safely stop the test motorcycle. 9.3 Possible shapes and specific requirements 9.3.1
48、 The straight type test track 9.3.1.1 Type 1 The measurement section as shown in Figure 1 shall be located on the straight track. The acceleration sections to the left and right of the measurement section shall be long enough to enable maximum speed to be attained at the measurement section. aMeasur
49、ement section. bDirection of motorcycle, a. cDirection of motorcycle, b. Figure 1 Test track type 1 9.3.1.2 Type 2 The two measurement sections, 1 and 2, whose lengths may be different, as shown in Figure 2, shall be located at each end of the straight test track, and in a virtually straight line. aMeasurement section 1. bMeasurement section 2. cDirection of motorcycle, a. dDirection of motorcycle, b. Figure 2 Test track type 2 BS ISO 7117:2010 ISO 7117:2010(E) 6 ISO 2010 All rights reserved9.3
