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1、BRITISH STANDARD BS ISO 16992:2006 Passenger car tyres Spare unit substitutive equipment (SUSE) ICS 43.020; 83.160.10 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:24:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 16992:2006 This British Standard was published under the authority
2、 of the Standards Policy and Strategy Committee on 30 June 2006 BSI 2006 ISBN 0 580 48817 9 National foreword This British Standard reproduces verbatim ISO 16992:2006 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee AUE/4, Ty
3、res and wheels for motor vehicles, which has the responsibility to: A list of organizations represented on this committee can 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 BS
4、I Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the 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
5、its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests
6、 informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 8, an inside back cover and a back cover. The BSI copyright notice displayed
7、 in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:24:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD ISO 16992 First edition 2006-06-01 Reference numb
8、er ISO 16992:2006(E) Passenger car tyres Spare unit substitutive equipment (SUSE) Pneumatiques pour voitures particulires quipements de substitution de roue de secours (SUSE) BS ISO 16992:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:24:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
9、ii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:24:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standard
10、s 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. International organizations, governmental and non-governmental, in liaison with ISO, also take
11、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 rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is t
12、o 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 least 75 % of the member bodies casting a vote. Attention is drawn to the possibility
13、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 16992 was prepared by Technical Committee ISO/TC 31, Tyres, rims and valves, Subcommittee SC 3, Passenger car tyres and rims. BS ISO 16
14、992:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:24:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv Introduction Road vehicles, in order to assure unrestricted mobility, need to be equipped with fully efficient tyres in all positions. Traditionally, therefore, road vehicles are pr
15、ovided with a spare unit intended to reinstate vehicle mobility in case of loss of efficiency of one tyre. That spare unit may be either of the same type as the units normally equipping the vehicle; or of “temporary use” type, thus intended for use only under restricted conditions. Some vehicles, ho
16、wever, may be constructed and provided with devices which may reinstate their mobility also in the absence of a spare unit on board. Various types of such devices (emergency solutions, products, systems) are available to users in order not to lose or to recover the possibility to continue their jour
17、ney in case of loss of efficiency of one or more tyres. The term “spare unit substitutive equipment” (SUSE) is proposed as a general name for all equipment intended to replace a spare unit on board the vehicle. The term “extended mobility system” is proposed for the assembly of several independent b
18、ut interacting components specified and approved by a system manager. This International Standard mainly concerns extended mobility systems for vehicles equipped with passenger car tyres, thus allowing continued driving in restricted conditions after a loss of efficiency of at least one of the tyres
19、 of the vehicle. This International Standard specifies minimum performance levels for SUSE. It is a help for fixing objective requirements for a SUSE and allows the standard level of a given existing extended mobility system to be determined. BS ISO 16992:2006 Licensed Copy: sheffieldun sheffieldun,
20、 na, Sun Nov 26 14:24:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Passenger car tyres Spare unit substitutive equipment (SUSE) 1Scope This International Standard describes spare unit substitutive equipment (SUSE) for passenger car tyres. This equipment is designed to allow the user to continue t
21、he journey (with or without a stop) in a reasonably safe manner. NOTE 1Some equipment becomes effective automatically and thus avoids the necessity of stopping the vehicle immediately for inspection and corrective action. This International Standard only aims to qualify the performance of extended m
22、obility systems. It details specifications only for extended mobility systems suitable to permit the extended mobility of the vehicle. NOTE 2Other types of SUSE are described in Annexes A and B. This International Standard applies from the moment the extended mobility system becomes effective, and t
23、he driver has continued control of the vehicle (in speed and direction) in order to attempt to reach an appropriate place for servicing. This International Standard does not cover the vehicle thus equipped; the tyre while operating in inflated mode; the characteristics of the pressure survey device
24、and of the warning function relative to the inflated mode or to the partially deflated mode due to slow pressure losses; the transitory phase, if any, before the equipment becomes effective; the inspection, assessment, and the servicing of the extended mobility system, after it has been activated in
25、 flat tyre running mode. This International Standard includes the description of the various types of SUSE; the description and performance levels of complete extended mobility systems. NOTE 3The performance level which the user reasonably has the right to expect, and the restrictive conditions plac
26、ed upon that level, can vary to a large degree according to the equipment installed and to real operating conditions of the tyre in flat-tyre running mode. 2Conformance 2.1When in inflated mode, and therefore functionally efficient, a tyre which is part of a SUSE shall conform in all respects to the
27、 usual criteria of a pneumatic tyre which can only be used in an inflated state, normal tyre load (i.e. conform to ISO 4000 and to ISO 10191) and shall be similarly maintained. Therefore, the user shall continue to comply with all recommendations of the tyre and/or vehicle manufacturer, as for a nor
28、mal tyre; in particular, the cold inflation pressure of each tyre shall be regularly checked. This check is necessary in order that it is at least adequate for the intended service (position, load, speed, camber, etc.) and conforms to the specifications of the vehicle manufacturer and/or the tyre ma
29、nufacturer. BS ISO 16992:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:24:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 2.2Whichever SUSE is chosen to equip a vehicle, it shall not degrade the service properties of the tyre in inflated mode. 2.3The performance of a SUSE depends up
30、on the nature of the damage that was the cause of the loss of tyre functional efficiency. 2.4Depending on the technical characteristics and functionality, a SUSE may offer to the vehicle different degrees of mobility (i.e. restored mobility, preserved mobility or extended mobility). 3Normative refer
31、ences 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 of the referenced document (including any amendments) applies. ISO 4000 (all parts), Passenger car tyres a
32、nd rims ISO 10191, Passenger car tyres Verifying tyre capabilities Laboratory test methods 4Terms and definitions For the purposes of this document, the following terms and definitions apply. 4.1 normal tyre pneumatic tyre designed for use in an inflated state 4.2 run-flat tyre tyre designed to oper
33、ate in an inflated mode and capable of running at least a specified distance under prescribed conditions in the event that the tyre does not hold air 4.3 spare unit assembly of a wheel and a tyre, which may include a tube, a valve, etc., which is intended to replace a wheel and tyre assembly already
34、 fitted on a vehicle that has lost some functional efficiency 4.4 spare unit substitutive equipment SUSE equipment intended to maintain or restore, not replace, the basic functions of a tyre in case of a tyre/wheel assembly failure 4.5 extended mobility system assembly of specified functionally depe
35、ndent components including, but not limited to, a tyre and a run-flat warning system, which together provide the specified performance granting extended mobility to a vehicle thus equipped NOTEExamples which do not meet this International Standard are shown in Annexes A and B. 4.6 inflated mode norm
36、al working state of a pneumatic tyre, inflated at the cold inflation pressure recommended by the vehicle or tyre manufacturer for the intended service BS ISO 16992:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:24:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 4.7 loss of tyre funct
37、ional efficiency any pressure loss of the tyre/wheel assembly which results in operation in flat tyre running mode and which could be rapid, slow, or uncontrolled, leading to a reduction of basic tyre function 4.8 flat tyre running mode state of a tyre while operating at an inflation pressure betwee
38、n 0 and 4.9 run-flat warning system RFWS system which delivers a warning to the driver that, on a vehicle equipped with an extended mobility system, a tyre is in flat tyre running mode NOTEAdditionally, an RFWS may also warn the driver when the expected run-flat potential of the extended mobility sy
39、stem has been used. 4.10 significant reduction of the tyre inflation pressure event leading a tyre to operate at an inflation pressure insufficient for the intended service (load, speed and camber) on a given vehicle 4.11 self-supporting tyre any technical solution (for example, reinforced sidewalls
40、) allowing the pneumatic tyre, mounted on the appropriate wheel and in the absence of any supplementary component, to supply the vehicle with the basic tyre functions at a specified speed and distance when operating in flat tyre running mode 4.12 internal support any technical solution consisting of
41、 a device, resting on the rim, that helps supply the vehicle with basic tyre functions when operating in flat tyre running mode 4.13 restored mobility operating condition of a vehicle that, following the loss of tyre functional efficiency, is recovered by manual deployment of a SUSE after an immedia
42、te stop 4.14 preserved mobility operating condition of a vehicle that, following the loss of tyre functional efficiency, is recovered automatically by means of a SUSE 4.15 extended mobility operating condition of a vehicle that, following the loss of tyre functional efficiency, is preserved by means
43、 of an extended mobility system 4.16 basic tyre functions normal capability of an inflated tyre to support a given load up to a given speed and to transmit the driving, the steering and the braking forces to the ground on which it runs 70 kPa BS ISO 16992:2006 Licensed Copy: sheffieldun sheffieldun,
44、 na, Sun Nov 26 14:24:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 5ISO run-flat system symbol See Figure 1. 6Extended mobility systems 6.1General Extended mobility systems may be based on either self-supporting tyres or assemblies including an internal support. Scale 2:1 Scale 1:1 Figure 1 BS IS
45、O 16992:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:24:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 6.2Function and performance The extended mobility system becomes effective automatically in case of a loss of tyre functional efficiency and the system informs the driver. The dr
46、iver shall adjust the driving behaviour according to the instructions supplied with the extended mobility system. The driver can continue the journey, informed of the flat tyre running mode and aware of the expected performance level. An extended mobility system shall be able to operate in flat tyre
47、 running mode at a speed of for a distance of . Extended mobility systems shall activate automatically and include a run-flat warning system that warns the driver that the flat tyre running mode has been reached; of any failure of the run-flat warning system. At the end of the specified performance
48、of an extended mobility system, operating in flat tyre running mode, the loss of mobility shall not be immediate. 7Endurance test The test and pass/fail criteria are shown in the table below. 8Markings The ISO run-flat symbol is shown in Clause 5. This symbol shall only be applied to the self-suppor
49、ting tyre (SST) when the extended mobility system successfully completes the test procedure as specified in Clause 7. The markings for other types of system (such as systems based on an internal support) will be completed in the next revision of this International Standard. Test criteriaComments Laboratory test on to diameter drums Conditioning at at InflationValve core removed Camber SlipWheel steer angle variations of up to allowed, if required. Speed Load cycle at load index Durati