1、BRITISH STANDARD BS ISO 9130:2005 Motorcycles Measurement method for location of centre of gravity ICS 43.140 BS ISO 9130:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 16 May 2005 BSI 16 May 2005 ISBN 0 580 45970 5 National foreword Th
2、is British Standard reproduces verbatim ISO 9130:2005 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee AUE/14, Motorcycles and mopeds, which has the responsibility to: A list of organizations represented on this committee can
3、 be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of t
4、he BSI Electronic Catalogue or of British Standards Online. 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 does not of itself confer immunity from legal obligations. aid en
5、quirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This d
6、ocument comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 17 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Referen
7、ce number ISO 9130:2005(E) OSI 5002INTERNATIONAL STANDARD ISO 9130 Second edition 2005-05-01 Motorcycles Measurement method for location of centre of gravity Motocycles Mthode de mesure de lemplacement du centre de gravit BSISO9130:2005IS:0319 O5002(E) DPlcsid Fremia ihTs PDF file may ctnoian emdebt
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12、e tsopale 65 eneG 1121-HC 02 av leT. 4 + 10 947 22 1 11 xaF0 947 22 14 + 9 74 E-mail coirypthgiso.o gr We bwww.is.o gro Pulbisdehi n Switlrez dnaii ISO 5002 Allr ithgsr esedevrBSISO9130:2005IS:0319 O5002(E) I SO 5002 All irthgs ersedevr iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normati
13、ve references . 1 3 Terms and definitions. 1 4 Measurement conditions 2 5 Apparatus and measuring instruments 2 6 Measuring procedure 3 7 Test results 16 Annex A (normative) Test report. 17 BSISO9130:2005IS:0319 O5002(E) iv I SO 5002 All irthgs ersedevrForeword ISO (the International Organization fo
14、r 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 has been established has the
15、 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 standardization. Internati
16、onal 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 bodies for voting. Publication
17、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 or all such patent rights.
18、ISO 9130 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 22, Motorcycles. This second edition cancels and replaces the first edition (ISO 9130:1989), which has been technically revised. BSISO9130:2005IS:0319 O5002(E) I SO 5002 All irthgs ersedevr vIntroduction The stabi
19、lity of a motorcycle is a very important element of its active safety. The motorcyclerider combination and the environment in which this combination is used form a unique closed-loop system. However, the evaluation of the motorcyclerider combination stability is extremely complex because of the inte
20、raction between the intrinsic motorcycle stability, the influence of the riders position and his/her response to continuously changing conditions. In the evaluation of motorcycle stability, the determination of the kinetic characteristics of the motorcyclerider combination is to be considered an imp
21、ortant part of the design parameters of the vehicle itself. The test procedure specified in this International Standard deals with one aspect of the kinetic characteristics: the determination of the centre of gravity of the motorcycle and of the motorcyclerider combination. BSISO9130:2005blank 5002:
22、0319OSISBINTENRATIONAL TSANDADR IS:0319 O5002(E)I SO 5002 All irthgs ersedevr 1Motorcycles Measurement method for location of centre of gravity 1 Scope This International Standard specifies a measuring method for determining the location of the centre of gravity of the motorcycle and of the motorcyc
23、lerider combination. It is applicable to two-wheeled motorcycles. Other measuring methods can be used if it is demonstrated that the results are equivalent. The measuring results obtained by the method given in this International Standard alone (see Annex A) cannot be used for an evaluation of the v
24、ehicle stability because they deal with only one aspect of this very complex phenomenon. 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 references, the latest edition
25、of the referenced document (including any amendments) applies. ISO 3779, Road vehicles Vehicle identification number (VIN) Content and structure 49 CFR Part 572, subpart B, Code of Federal Regulations. NHTSA 1)3 Terms and definitions For the purposes of this document, the following terms and definit
26、ions apply. 3.1 motorcycle axis system x, y, z right-hand orthogonal axis system fixed on the motorcycle such that when the motorcycle is moving in a straight line on a level road, the x-axis is substantially horizontal, points forwards and is in the longitudinal plane of symmetry, the y-axis points
27、 to the riders left side and the z-axis points upwards NOTE 1 This coordinate system applies to translation motion and rotational motion together with the motorcycle. NOTE 2 Assuming the condition that the motorcycle is fixed to the platform, the coordinate system is also applied to the platform. 3.
28、2 earth-fixed axis system X, Y, Z right-hand orthogonal axis system fixed on the Earth, such that the X- and Y-axes are in a horizontal plane and the Z-axis points upwards 1) US National Highway Traffic Safety Administration. BSISO9130:2005IS:0319 O5002(E) 2 I SO 5002 All irthgs ersedevr4 Measuremen
29、t conditions 4.1 Measurement conditions for a riderless motorcycle are as follows. a) The motorcycle shall be free from mud and deformation, and shall operate normally. b) The fuel shall be filled up to the top level specified in the operators manual. c) Lubricating oil and cooling water shall be fi
30、lled up to the level specified in the operators manual. d) Tyre pressure shall be as specified in the operators manual. e) Tools shall be provided at the regular storage positions. f) Front and rear suspension systems shall be fixed at a static position. g) The front wheel shall be positioned along
31、the x-axis. If the conditions are to be modified according to the object of the measurement, the modified conditions shall be recorded in the measurement report. 4.2 Measurement conditions when a rider is on the motorcycle are as follows. a) The measurement conditions of the motorcycle shall be in a
32、ccordance with 4.1. b) A test dummy as specified in 49 CFR Part 572, subpart B, or equivalent, having a mass of 73,4 kg, or an equivalent person, shall be used as the rider. c) The rider should be positioned on the vertical centre surface of the motorcycle. d) The rider shall sit on the seat, hold t
33、he handle bar by both hands, and place both feet on the foot rests. e) The rider shall be positioned so as to obtain the angle formed by the line connecting point S (the point indicating the centre of rotation of the torso and the arms of the rider) and point H (the point indicating the centre of ro
34、tation of the torso and femoral regions of the rider) and the x-axis. This angle shall be the angle of the riders posture. f) The rider shall be positioned so as to obtain the distance between the front axle and point H along the x-axis, which shall be the seating position of the rider. If the condi
35、tions are to be modified according to the object of measurement, the modified conditions shall be recorded in the measurement report. 5 Apparatus and measuring instruments 5.1 Precision square level, able to measure up to 0,1mm / 1m ( 20 inches). 5.2 Steel tape measure with a tolerance of 0,3 + 0,1(
36、L 1) mm at length, L, in metres. 5.3 Angle gauge, able to measure the rotational angle to 0,1 electrically or mechanically. 5.4 Weighing scales, with sufficient accuracy to weigh the object up to 0,1 kg. 5.5 Supports, used when placing the platform on the weighing scale. 5.6 Platform, being of the h
37、ighest possible rigidity and of light weight. BSISO9130:2005IS:0319 O5002(E) I SO 5002 All irthgs ersedevr 35.7 Knife-edge, the roundness at the edge of which shall be less than 1 mm in radius and whose edge angle should be less than 90 . The roundness at the edge is the form of edge finished sharpl
38、y when rounded with the load applied to it. 5.8 Weights, used to incline the platform. 6 Measuring procedure 6.1 Location of centre of gravity along x-axis 6.1.1 Location of centre of gravity of the empty platform along x-axis Measure the location of the centre of gravity of the empty platform along
39、 the x-axis, as follows. See Figure 1. a) Place supports respectively at the centres of the front and rear weighing scales and measure loads P KFand P KR . b) Place the platform on the two supports, such that its centre of gravity lies directly above the line connecting the two supports. The platfor
40、m includes any brackets/wires necessary to hold the motorcycle. If it is difficult to locate the centre of gravity above the line connecting the two supports, use additional sets of a weighing scale and a support, such that the centre of gravity falls on the area framed by additional supports and th
41、e supports F and R. c) Measure the distance, x PF , along the x-axis from point A at the front end of the platform to support F on the front side, and the distance x PRalong the x-axis from point A to support R on the rear side. d) Measure loads P FRand P RRdistributed to the front and rear supports
42、. e) Calculate the distance, x P , along the x-axis from point A at the front end of the platform to the centre of gravity using Equations (1) to (3): PF FR KF PPP = (1) PR RR KR PPP = (2) PF PF PR PR P PF PR xP xP x PP + = +(3) where P PFis the load of platform distributed to support F, in newtons
43、(N); P PRis the load of platform distributed to support R, in newtons (N); P FRis the total of the load given by the platform and the load given by support F, distributed to support F, in newtons (N); P RRis the total of the load given by the platform and the load given by support R, distributed to
44、support R, in newtons (N); P KFis the load of support F, in newtons (N); P KRis the load of support R, in newtons (N); x Pis the distance from point A at the front end of the platform to the centre of gravity along the x-axis, in millimetres (mm); BSISO9130:2005IS:0319 O5002(E) 4 I SO 5002 All irthg
45、s ersedevrx PFis the distance from point A at the front end of the platform to the support F along the x-axis, in millimetres (mm); x PRis the distance from point A at the front end of the platform to support R along the x-axis, in millimetres (mm). Figure 1 Location of centre of gravity of platform
46、 along x-axis 6.1.2 Location of centre of gravity of motorcycle along x-axis For both the case where the motorcycle is riderless (4.1) or has a rider seated on it (4.2), measure the location of the centre of gravity of a motorcycle along the x-axis, as follows. See Figure 2. a) Place the motorcycle
47、on the platform, such that the tyre centrelines are parallel to, and vertical above, the line connecting the two supports, and fix it so it cannot move. The lateral inclination angle of the motorcycle to the platform shall be 0 0,5 . b) Measure the distance, x F , along the x-axis from point A at th
48、e front end of the platform to the front axle of the motorcycle. c) Measure loads P MFand P MRdistributed to the front and rear supports. d) Calculate the distance, x g , along the x-axis from the front axle of the motorcycle to the location of the centre of gravity using Equations (4) to (9): mTP m
49、mm = (4) TF MF KF PPP = (5) TR MR KR PPP = (6) BSISO9130:2005IS:0319 O5002(E) I SO 5002 All irthgs ersedevr 5PF TF PR TR T TF TR xP xP x PP + = +(7) TT PP m m xm xm x m = (8) gmF xxx = (9) where m mis the mass of the motorcycle, in kilograms (kg); m Tis the total mass of the motorcycle and platform, in kilograms (kg); m Pis the mass of the platform, in kilograms (kg); P TFis the load of the platform and motorcy
