《BS-ISO-7176-4-1997.pdf》由会员分享，可在线阅读，更多相关《BS-ISO-7176-4-1997.pdf（14页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS ISO 7176-4:1997 Wheelchairs Part 4: Energy consumption of electric wheelchairs and scooters for determination of theoretical distance range ICS 11.180 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:12:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 7176-4:1997 Thi
2、s British Standard, having been prepared under the direction of the Health and Environment Sector Board, was published under the authority of the Standards Board and comes into effect on 15 April 1998 BSI 04-1999 ISBN 0 580 29607 5 National foreword This British Standard reproduces verbatim ISO 7176
3、-4:1997 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee CH/40, Sanitary chairs and wheelchairs, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committ
4、ee 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. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-referen
5、ces The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalog
6、ue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document compri
7、ses a front cover, an inside front cover, pages i and ii, the ISO title page, pages ii to iv, pages 1 to 4 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendmen
8、ts issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:12:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 7176-4:1997 BSI 04-1999i Contents Page National forewordInside front cover Forewordiii Text of ISO 7176-41 Licensed Copy: sheffieldun she
9、ffieldun, na, Sun Nov 26 02:12:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:12:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:12:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
10、BS ISO 7176-4:1997 ii BSI 04-1999 Contents Page Forewordiii Introduction1 1Scope1 2Normative references1 3Definitions1 4Principle1 5Test equipment1 6Preparation of test wheelchair2 7Test procedure2 8Test report3 9Disclosure of results3 Figure 1 Test track4 Table 1 Driver mass3 Descriptors: Disabled
11、persons aids, electric vehicles, wheel chairs, motorcycles, tests, determination, energy consumption. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:12:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 7176-4:1997 BSI 04-1999iii Foreword ISO (The International Organization for Standard
12、ization) 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 to
13、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. Draft International
14、 Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Stand
15、ard ISO 7176-4 was prepared by Technical Committee ISO/TC 173, Technical systems and aids for disabled or handicapped persons, Subcommittee SC 1, Wheelchairs. This second edition cancels and replaces the first edition (ISO 7176-4:1988), which has been technically revised. ISO 7176 consists of the fo
16、llowing parts, under the general title Wheelchairs: Part 1: Determination of static stability; Part 2: Determination of dynamic stability of electric wheelchairs; Part 3: Determination of efficiency of brakes; Part 4: Energy consumption of electric wheelchairs and scooters for determination of theor
17、etical distance range; Part 5: Determination of overall dimensions, mass and turning space; Part 6: Determination of maximum speed, acceleration and retardation of electric wheelchairs; Part 7: Measurement of seating and wheel dimensions; Part 8: Static, impact and fatigue strengths Requirements and
18、 test methods; Part 9: Climatic tests for electric wheelchairs; Part 10: Determination of the obstacle-climbing ability of electric wheelchairs; Part 11: Test dummies; Part 13: Determination of coefficient of friction of test surfaces; Part 14: Power and control systems for electric wheelchairs Requ
19、irements and test methods; Part 15: Requirements for information disclosure, documentation and labelling; Part 16: Resistance to ignition of upholstered parts Requirements and test methods. The following parts are also on the programme of work: Part 17: Serial interface for electric wheelchair contr
20、ollers; Part 18: Stair-traversing devices; Part 19: Wheeled mobility devices for use in motor vehicles; Part 20: Determination of the performance of stand-up type wheelchairs; Part 21: Electromagnetic compatibility of powered wheelchairs and motorized scooters Requirements and test methods; Part 22:
21、 Setup procedures. A technical report will also be made available giving a simplified explanation of these parts of ISO 7176. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:12:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:
22、12:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 7176-4:1997 BSI 04-19991 Introduction Energy consumption is affected by a number of factors such as ambient temperature, weight of the user, topography, surface, tyres and battery condition. Hence the results obtained from the test specified in
23、 this part of ISO 7176 cannot be used to derive an accurate range for a particular wheelchair and user. However, it can be used to give a basis for comparison between different wheelchairs and scooters. Tests of the same models of several wheelchairs have been conducted by several test institutions
24、and have demonstrated that the wide tolerance on the length of the test track does not have a significant effect on the accuracy of the test result. 1 Scope This part of ISO 7176 specifies a method for determining the energy consumption, expressed as a theoretical distance range, of electric wheelch
25、airs and scooters intended for users whose mass does not exceed 100 kg. It applies to wheelchairs and scooters with a maximum speed of 15 km/h and intended to carry only one person. 2 Normative references The following standards contain provisions which, through reference in this text, constitute pr
26、ovisions of this part of ISO 7176. At the time of publication the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 7176 are encouraged to investigate the possibility of applying the most recent editions of the standards indicat
27、ed below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 6440:1985, Wheelchairs Nomenclature, terms and definitions. ISO 7176-6:1988, Wheelchairs Part 6: Determination of maximum speed, acceleration and retardation of electric wheelchairs. ISO 7176-7:1), Wh
28、eelchairs Part 7: Measurement of seating and wheel dimensions. ISO 7176-15:1996, Wheelchairs Part 15: Requirements for information disclosure, documentation and labelling. 3 Definitions For the purposes of this part of ISO 7176, the definitions given in ISO 6440 and the following definitions apply.
29、3.1 maximum user mass maximum mass of user as specified by the wheelchair manufacturer 3.2 specification sheets manufacturers pre-sale literature that gives wheelchair pre-sale information 3.3 wheelchair electrically powered wheelchair or scooter 4 Principle The wheelchair is driven around the test
30、track at maximum speed 10 times clockwise and 10 times anticlockwise, and the ampere-hours used are measured. 5 Test equipment 5.1 Test plane, comprising a flat hard horizontal surface in an area free from draughts in a location where the temperature can be maintained between 18 C and 25 C, upon whi
31、ch is marked a rectangular test track. The test track shall be 2 m wide, with the length of its centreline between 50 m and 100 m. Each long side is to be of sufficient length so that the wheelchair can achieve its maximum speed. See Figure 1. NOTEThe floor of a typical large building used for manuf
32、acturing or indoor leisure activities with, for example, a concrete, asphalt or wooden floor is acceptable. Any minor deviations from flat or horizontal are accommodated by reversing the direction of the test after the first 10 laps, and starling and finishing the test in the same place on the track
33、. 5.2 Energy consumption meter, capable of measuring the electric charge, in ampere hours, used by the wheelchair to an accuracy of 5 % and which does not itself use more than 0,5 % of the electric charge used by the wheelchair. 5.3 Measuring device, capable of measuring the length of the centreline
34、 of the test track with an accuracy of 100 mm. NOTEA tape measure is a suitable measuring device. 5.4 Camera and film. 1) To be published. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:12:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 7176-4:1997 2 BSI 04-1999 6 Preparation of test
35、 wheelchair 6.1 Fit any appropriate armrest and/or footrest available from the wheelchair manufacturer. 6.2 If the wheelchair has pneumatic tyres, inflate them to the pressure recommended by the manufacturer. If a pressure range is given, inflate to the highest pressure in the range. 6.3 Position an
36、y adjustable parts to any manufacturers recommendations for driving. 6.4 For parts for which there are no manufacturers recommendations for driving, set the adjustable parts of the wheelchair so that as many as possible of the following settings are achieved, with priority given to those earliest in
37、 the sequence: NOTEWhen adjusting parts of a wheelchair, it is often the case that an adjustment to one part changes another e.g. changing the wheel position may also change the seat angle. Thus it may be necessary to make several re-adjustments to some parts to compensate for the interaction of oth
38、ers. It may also be the case that in order to achieve one setting it is impossible to achieve another. a) Set any castor stem vertical with a tolerance NOTEA negative castor stem angle is that where the top of the stem is to the rear of the bottom of the stem. b) If the position of the body support
39、systems relative to the frame can be adjusted horizontally and/or vertically, set them at the midposition or, where there is no provision for a middle setting, at the nearest position to the rear of and/or below the midposition respectively. c) Set adjustable seats so that the seat reference plane,
40、as determined by the method and tolerances specified in ISO 7176-7, slopes at 8 to the horizontal with its forward edge higher than the rear. d) Set adjustable backrests so that the back reference plane, as determined by the method and tolerances specified in ISO 7176-7, is at 10 to the vertical wit
41、h the top behind the bottom. e) Position adjustable foot supports so that the angle between the leg reference plane and the seat reference plane, as specified in ISO 7176-7, is as close as possible to, but not less than, 90. f) Set wheels with adjustable camber to the midposition or, where there is
42、no provision for a middle setting, the nearest midposition between vertical and maximum negative camber. g) If the position of the drive wheels can be adjusted horizontally, set them in the midposition 1 mm or, where there is no provision for a middle setting, the nearest position to the rear of the
43、 middle. h) if the position of the drive wheels can be adjusted vertically, set them in the midposition 1 mm or, where there is no provision for a middle setting, the nearest position below the middle. i) If the position of castor wheels can be adjusted horizontally, set them in the midposition 1 mm
44、 or, where there is no provision for a middle setting, the nearest position to the rear of the middle. j) If the position of castor wheels can be adjusted vertically, set them in the midposition 1 mm or, where there is no provision for a middle setting, the nearest position below the middle. k) If t
45、he width between any castors can be adjusted, set it to its maximum value. l) If the position of any castor wheel is adjustable for height within the castor fork, set it to the midposition 1 mm or, where there is no midposition, the nearest position to the middle which gives the greatest distance be
46、tween fork and wheel. m) Set any remaining physical adjustments as near as possible to their midposition. If increments do not permit a unique midposition, select the midposition which gives the largest dimension of the adjustment. NOTEElectrical adjustments, such as are on speed controllers, are no
47、t included. n) Position the lowest part of the leg support/footrest as close as possible to, but not less than 50 mm above, the test plane. o) Check that all fasteners are secured in accordance with the manufacturers specification. 6.5 If the wheelchair is fitted with a controller with adjustable se
48、ttings that need a tool to make changes, set them as specified by the manufacturer for initial marketing. 6.6 If the wheelchair is fitted with a controller with adjustable settings that are accessible to the user, set the speed and acceleration to their maximum. 6.7 Record the wheelchair equipment s
49、ettings used during the test. 6.8 Record the position of any adjustable parts. 7 Test procedure 7.1 Using the measuring device (5.3), measure the length of the centreline of the test track to an accuracy of 100 mm. 7.2 Using the energy consumption meter (5.2), measure the electric charge, in ampere hours, consumed by the wheelchair batteries. 0 1 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:12:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 7176-4:1997 BSI 04-19993