BS ISO 7117-2010 Motorcycles - Measurement method for determining maximum speed《摩托车 确定最大速度的测量方法》.pdf

1、BS ISO 7117:2010ICS 43.140NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDMotorcycles Measurement methodfor determiningmaximum speedThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 28 February2010 BSI 2010ISBN

2、 978 0 580 62075 1Amendments/corrigenda issued since publicationDate CommentsBS ISO 7117:2010National forewordThis British Standard is the UK implementation of ISO 7117:2010.The UK participation in its preparation was entrusted to TechnicalCommittee AUE/14, Motor cycles and mopeds.A list of organiza

3、tions represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS

4、ISO 7117:2010Reference numberISO 7117:2010(E)ISO 2010INTERNATIONAL STANDARD ISO7117Third edition2010-02-15Motorcycles Measurement method for determining maximum speed Motocycles Mthode de mesure pour dterminer la vitesse maximaleBS ISO 7117:2010ISO 7117:2010(E) PDF disclaimer This PDF file may conta

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7、meters were optimized for printing. Every care 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. COPYRIGHT PROTECTED DOCUMENT ISO 2010 All ri

8、ghts reserved. Unless otherwise specified, no part of this publication may be 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 t

9、he 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 7117:2010ISO 7117:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv

10、 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 Measurement accuracies4 9 Test tracks4 9.1

11、 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 of results10 12.1 The maximum spe

12、ed .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 7117:2010ISO 7117:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Stand

13、ardization) 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 has been established has the right

14、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 standardization. International St

15、andards 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 bodies for voting. Publication as an I

16、nternational 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 or all such patent rights. ISO 711

17、7 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 7117:2010ISO 7117:2010(E) ISO 2010 All rights reserved vIntroduction In this third e

18、dition 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 type test tracks, which are used in se

19、veral regions, are also revised substantially in view of the similarity with testing results on straight test tracks. BS ISO 7117:2010BS ISO 7117:2010INTERNATIONAL STANDARD ISO 7117:2010(E) ISO 2010 All rights reserved 1Motorcycles Measurement method for determining maximum speed 1 Scope This Intern

20、ational 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 cited applies. For undated reference

21、s, 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 the following apply. 3.1 maximum spee

22、d vmaxhighest steady speed of test motorcycle 3.2 motorcycle kerb mass mkmotorcycle 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 the manufacturer in addition to that nec

23、essary for normal operation EXAMPLES Toolkit, carrier(s), windscreen(s), protective equipment, etc. BS ISO 7117:2010ISO 7117:2010(E) 2 ISO 2010 All rights reserved4 Symbols Table 1 Symbols Symbol Definition Unit Alenaccuracy of measurement equipment of the measurement section length m Aspeedresultan

24、t accuracy of speed measurement % Atimeaccuracy of time measurement equipment s dTrelative air density during the test d0relative air density at the standard reference conditions espeedresultant speed measurement error of system km/h Lstlength of the measurement section of type 1, type 3 and type 5

25、test tracks m Lst1length of the measurement section 1 of type 2 and type 4 test tracks m Lst2length of the measurement section 2 of type 2 and type 4 test tracks m pTtotal barometric pressure during test kPa p0total barometric pressure at standard reference conditions kPa TTair temperature during te

26、st K T0air temperature at standard reference conditions K t time to run the measurement section s tatime to run the measurement section in direction a s tbtime to run the measurement section in direction b s titime to run the measurement section test run i s v motorcycle speed km/h vaveaverage speed

27、 of motorcycle of two-direction tests km/h vimotorcycle speed test run i km/h vmaxmaximum speed of test motorcycle km/h 0air volumetric mass kg/m35 Standard reference conditions The standard reference conditions shall be as follows: a) total barometric pressure, p0: 101,325 kPa; b) air temperature,

28、T0: 293,15 K; c) relative humidity, H0: 65 %; d) air volumetric mass, 0: 1,205 kg/m3; e) relative air density, d0: 0,931 9. BS ISO 7117:2010ISO 7117:2010(E) ISO 2010 All rights reserved 36 Preparation of test motorcycle 6.1 The motorcycle shall conform in all its parts and components with the produc

29、tion 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 with the instructions given by the motorcycle manufacturer. 6.3 The lubr

30、icants 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 instructions. 6.5 Before the test, all motorcycle parts shall be stabili

31、zed 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 instructions. 6.8 When installing the measurement instruments on the motorcycle,

32、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 position 7.1 The rider shall wear a close-fitting suit, a protective hel

33、met, 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 attaining the maximum speed of the motorcycle to be tested. The positio

34、n 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 the position shall be given in the test report or may be replaced with p

35、hotographs (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: a) electronic time counter or equivalent time measurement system; b)

36、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 7117:2010ISO 7117:2010(E) 4 ISO 2010 All rights reservedThe photoelectric cell and electronic time counter system, or

37、 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-beam and the motorcycle) so that the required accuracy of the length of m

38、easurement 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 accuracies 8.2.1 Accuracy of speed measurement system The error of measure

39、d motorcycle speed is influenced by the total time to run the measurement section(s), t, the length of the measurement section(s), Lst, the accuracy of time measurement equipment, Atime, and the accuracy of measurement equipment of the measurement section length, Alen. The length of the measurement

40、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 tape measure or the surveying instrument) of the measurement section(s) lengt

41、h, Alen, shall be given in the test report. The accuracy of time measurement equipment, Atime, is determined by the accuracy of the electronic time counter system itself and the response time of the photoelectric cell sensor. Atimeshall be given in the test report. 8.2.2 Measurement accuracy of ambi

42、ent 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 % 0,1 m/s Wind direction 5 Ambient temperature 1 K Barometric pressure 0,2 kPa Humidity

43、 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 measurement section shall have the same surface and longitudinal profile as the measurem

44、ent 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 might impede the measurement of the maximum speed. The test track shall have not more

45、 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, the slope to compensate the centrifugal force of loop type and circle type test tr

46、acks may be allowed. BS ISO 7117:2010ISO 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 replaced by the figure. 9.2 Composition The test track shall consist of the following sec

47、tions: 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 The straight type test track 9.3.1.1 Type 1 The measurement section as shown in Fig

48、ure 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. aMeasurement section. bDirection of motorcycle, a. cDirection of motorcycle, b. Figure 1 Te

49、st 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 7117:2010ISO 7117:2010(E) 6 ISO 2010 All rights reserved9.3.2 The loop type test track 9.3.2.1 Type 3 The measurement section as shown in Figure 3 s