1、BS ISO16992:2010ICS 43.020; 83.160.10NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPassenger car tyres Spare unit substitutiveequipment (SUSE)This British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 March2010 BSI
2、 2010ISBN 978 0 580 65006 2Amendments/corrigenda issued since publicationDate CommentsBS ISO 16992:2010National forewordThis British Standard is the UK implementation of ISO 16992:2010. Itsupersedes BS ISO 16992:2006 which is withdrawn.The UK participation in its preparation was entrusted to Technic
3、alCommittee AUE/4, Tyres and wheels for motor vehicles.A list of organizations 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
4、 with a British Standard cannot confer immunityfrom legal obligations.BS ISO 16992:2010Reference numberISO 16992:2010(E)ISO 2010INTERNATIONAL STANDARD ISO16992Second edition2010-02-15Passenger car tyres Spare unit substitutive equipment (SUSE) Pneumatiques pour voitures particulires quipements de su
5、bstitution de roue de secours (SUSE) BS ISO 16992:2010ISO 16992:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and inst
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8、please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2010 All rights 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 microfi
9、lm, without permission in writing from either ISO at the address below or ISOs 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
10、 All rights reservedBS ISO 16992:2010ISO 16992:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out t
11、hrough 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 part in the work. ISO colla
12、borates 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 to prepare International Sta
13、ndards. 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 that some of the elements o
14、f 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. This second edition cancels and repl
15、aces the first edition (ISO 16992:2006), which has been technically revised. BS ISO 16992:2010ISO 16992:2010(E) iv ISO 2010 All rights reservedIntroduction In order to ensure unrestricted mobility, road vehicles need to be equipped with fully efficient tyres in all positions. Road vehicles are there
16、fore traditionally provided with a spare unit intended to reinstate vehicle mobility in the event of loss of efficiency of one tyre. The spare unit can be either of the following: of the same type of the units normally equipping the vehicle, or of “temporary use” type, thus intended for use only und
17、er restricted conditions. Some vehicles, however, can be constructed and provided with devices that can reinstate their mobility even in the absence of a spare unit on board. Various types of such devices (emergency solutions, products, systems) are available to users in order to ensure that they ar
18、e able to continue their journey in the event of loss of efficiency of one or more tyres. The term “spare unit substitutive equipment (SUSE)” (see definition 4.4) is used as a general name for all equipment intended to replace a spare unit on board the vehicle. The term “extended mobility system” (s
19、ee definition 4.5) refers to the assembly of several independent but interacting components specified and approved by a system manager. This International Standard mainly concerns the extended mobility systems for vehicles equipped with passenger car tyres, thus allowing driving to continue in restr
20、icted conditions after a loss of efficiency of at least one of the tyres of the vehicle. This International Standard specifies minimum performance levels for SUSE. It provides guidance when establishing objective requirements for a SUSE and allows the standard level of a given existing extended mobi
21、lity system to be determined. BS ISO 16992:2010INTERNATIONAL STANDARD ISO 16992:2010(E) ISO 2010 All rights reserved 1Passenger car tyres Spare unit substitutive equipment (SUSE) 1 Scope This International Standard describes spare unit substitutive equipment (SUSE) for passenger car tyres, which is
22、designed to enable users to continue their journey (with or without a stop) in a reasonably safe manner. NOTE 1 Certain equipment becomes effective automatically, thus avoiding the need to stop the vehicle immediately for inspection and corrective action. This International Standard is intended only
23、 to qualify the performance of extended mobility systems. Its specifications only apply to extended mobility systems that can permit the extended mobility of the vehicle. NOTE 2 Other types of SUSE are described in Annexes A and B. The specifications in this International Standard apply from the mom
24、ent the extended mobility system becomes effective, with the driver continuing to control of the vehicle (in terms of speed and direction) in an attempt to reach an appropriate place for servicing. The following are within the scope of this International Standard: the description of the various type
25、s of SUSE; the description and performance levels of complete extended mobility systems. NOTE 3 The performance level that the user reasonably has the right to expect, as well as the restrictive conditions placed upon that level, can vary to a large degree depending on the equipment installed and on
26、 the real operating conditions of the tyre in flat-tyre running mode. The following are outside the scope of this International Standard: the vehicle to be equipped; the tyre while operating in inflated mode; the characteristics of the pressure survey device and of the warning function relative to t
27、he 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 flat tyre running mode. BS ISO 16992:201
28、0ISO 16992:2010(E) 2 ISO 2010 All rights reserved2 Conformance 2.1 When in inflated mode, and therefore functionally efficient, a tyre that is part of a SUSE shall conform in all respects to the usual criteria of a pneumatic tyre that can only be used in an inflated state, normal tyre load, i.e. it
29、shall conform to ISO 4000 (all parts) and to ISO 10191, and it shall be similarly maintained. The user shall therefore continue to comply with all recommendations of the tyre manufacturer, or the vehicle manufacturer, or both, as for a normal tyre. In particular, the cold inflation pressure of each
30、tyre shall be regularly checked. This check is necessary to ensure that it is at least adequate for the intended service (position, load, speed, camber, etc.) and that it conforms to the specifications of the tyre manufacturer, or the vehicle manufacturer, or both. 2.2 Whichever SUSE is chosen to eq
31、uip a vehicle, it shall not degrade the service properties of the tyre in inflated mode. 2.3 The performance of a SUSE depends upon the nature of the damage that was the cause of the loss of tyre functional efficiency. 2.4 Depending on the technical characteristics and functionality, a SUSE may offe
32、r to the vehicle different degrees of mobility (i.e. restored mobility, preserved mobility or extended mobility). 3 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated refere
33、nces, the latest edition of the referenced document (including any amendments) applies. ISO 4000 (all parts), Passenger car tyres and rims ISO 10191, Passenger car tyres Verifying tyre capabilities Laboratory test methods 4 Terms and definitions For the purposes of this document, the following terms
34、 and definitions apply. 4.1 normal tyre pneumatic tyre designed for use in an inflated state 4.2 run-flat tyre tyre designed to operate 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 ass
35、embly of a tyre and a wheel intended to replace a tyre/wheel assembly already fitted on a vehicle that has lost some functional efficiency NOTE The tyre/wheel assembly can include a tube and a valve, etc. BS ISO 16992:2010ISO 16992:2010(E) ISO 2010 All rights reserved 34.4 spare unit substitutive eq
36、uipment SUSE equipment intended to maintain or restore, but not replace, the basic functions of a tyre in the event of a tyre/wheel assembly failure 4.5 extended mobility system assembly of specified functionally dependent components including, but not limited to, a tyre and a run-flat warning syste
37、m, which together provide the specified performance granting extended mobility to a vehicle thus equipped NOTE Examples which do not meet this International Standard are shown in Annexes A and B. 4.6 inflated mode normal working state of a pneumatic tyre, inflated at the cold inflation pressure reco
38、mmended by the vehicle manufacturer or the tyre manufacturer for the intended service 4.7 loss of tyre functional efficiency 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 t
39、yre function 4.8 flat tyre running mode state of a tyre, while operating at an inflation pressure between 0 kPa and 70 kPa 4.9 run-flat warning system RFWS system that delivers a warning to the driver that, on a vehicle equipped with an extended mobility system, a tyre is in flat tyre running mode N
40、OTE In addition, an RFWS can also warn the driver when the expected run-flat potential of the extended mobility system 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 on a given ve
41、hicle NOTE The intended service comprises the load, speed and camber. 4.11 self-supporting tyre technical solution 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
42、 and distance when operating in flat tyre running mode NOTE An example of a technical solution is reinforced sidewalls. 4.12 internal support technical solution consisting of a device, resting on the rim, that helps supply the vehicle with basic tyre functions when operating in flat tyre running mod
43、e 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 immediate stop BS ISO 16992:2010ISO 16992:2010(E) 4 ISO 2010 All rights reserved4.14 preserved mobility operating condition of a vehi
44、cle 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 of an extended mobility system 4.16 basic tyre functions nor
45、mal 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 5 ISO 16992 run-flat system symbol The ISO 16992 run-flat system symbol is used to identify those tyres that comply with req
46、uirements of the run-flat system specified in this International Standard (see also Clause 8). Figure 1 provides an example of the ISO 16992 run-flat system symbol for a self-supporting tyre. Figure 2 provides an example of the ISO 16992 run-flat system symbol for an internal support ring. 6 Extende
47、d mobility systems 6.1 General Extended mobility systems may be based on either self-supporting tyres or assemblies including an internal support. 6.2 Function and performance The extended mobility system becomes effective automatically in the event of a loss of tyre functional efficiency and the sy
48、stem informs the driver. The driver 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
49、be able to operate in flat tyre running mode at a speed of 80 km/h for a distance of 80 km. Extended mobility systems shall activate automatically and include a run-flat warning system that warns the driver of the following: that the flat tyre running mode has been reached; any failure of the run-flat warning system. At the end of the specified performance of an extended mobility system, operating in flat tyre running mode, the loss of mobility shall not be immediate. BS ISO 16992:2010ISO 16992:2010(E) ISO 2010 All ri
