1、 Reference number ISO/TS 29062:2009(E) ISO 2009TECHNICAL SPECIFICATION ISO/TS 29062 First edition 2009-11-15 Road vehicles Child restraint systems Sled test method to enable the evaluation of side impact protection Vhicles routiers Systmes de retenue pour enfants Mthode dessai sur chariot pour perme
2、ttre lvaluation de la protection en choc latral ISO/TS 29062:2009(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 install
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6、 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 2009 Al
7、l rights reservedISO/TS 29062:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Boundary conditions.2 5 Test method .2 5.1 General .2 5.2 Test facility and equipment 3 5.3 Test dummies 4 5.4 Instrumentation
8、.4 5.5 Test installation .5 5.6 Test conditions 5 6 Parameters to be recorded.6 Annex A (normative) Further specifications and instructions for systems attached with belts16 Annex B (normative) Panel padding specification17 Bibliography19 ISO/TS 29062:2009(E) iv ISO 2009 All rights reservedForeword
9、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 through ISO technical committees. Each member body interested in a subject for which a technical
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13、cument: an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in an ISO working group and is accepted for publication if it is approved by more than 50 % of the members of the parent committee casting a vote; an ISO Technical Specification (ISO/TS) repre
14、sents an agreement between the members of a technical committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting a vote. An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a further three years, revis
15、ed to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an International Standard or be withdrawn. Attention is drawn to the possibility that some of the elements o
16、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/TS 29062 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 12, Passive safety crash protection systems. ISO/TS 29062:2009(E) ISO 2009
17、All rights reserved vIntroduction 0.1 Objective and notes on applicability The objective of this Technical Specification is to create a test method that simulates lateral impact involving child restraint systems (CRS) as observed in the field with the ultimate goal of improving the protection of chi
18、ldren. It is explicitly stated that it is not possible to compare the performance of forward- and rearward-facing CRS according to this Technical Specification, unless they are each tested in their respective worst case conditions. The worst case condition corresponds to maximum intrusion close to t
19、he childs head. In ECE Regulation No. 95 side impact tests and similar real-world accidents, for a rearward-facing CRS this applies to the rear seat position and for a forward-facing CRS this applies to the front passenger seat position. In real-world accidents, for either forward-facing or rearward
20、-facing CRS, the worst case depends on the impact point and may be in either the front or the rear seat of the vehicle. 0.2 Background data and development of the method This Technical Specification has been prepared on the basis of accident data. The specification addresses the struck side impact c
21、onditions, which, from research data, are shown to be the conditions that in real accidents produce the majority of fatalities and serious injuries. A major aim has been to use methods that are relatively inexpensive. Thus, the specification has been developed through a progression of tests from ful
22、l-scale vehicle impacts, via double sled dynamic tests, to a single sled with a hinged panel, representing the intruding vehicles side structure. The data from the full size tests were first replicated on two sled rigs in which one sled represents the struck vehicle and the second sled represents th
23、e striking vehicle and the intruding side structure. The data from this method were analysed and used to develop a close approximation of the side impact event on a single sled. In this procedure, the intruding side structure is represented by a pivoted panel that is rotated in relation to the test
24、seat at a relative velocity within a band of velocities measured in full scale tests. The movement represents the deformation of the inner side structure of the passenger compartment relative to the non-struck side of the vehicle. Further information about the background data, development of the tes
25、t method and experiences can be found in ISO/TR 14646. TECHNICAL SPECIFICATION ISO/TS 29062:2009(E) ISO 2009 All rights reserved 1Road vehicles Child restraint systems Sled test method to enable the evaluation of side impact protection 1 Scope This Technical Specification specifies a test method for
26、 child restraint systems in side impact collisions. The test method simulates the conditions in which most of the serious injuries occur, and for which the child restraint characteristics can improve the protection of the child. 2 Normative references The following referenced documents are indispens
27、able 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 6487, Road vehicles Measurement techniques in impact tests Instrumentation ISO 8721, Road veh
28、icles Measurement techniques in impact tests Optical instrumentation ISO 13216-1, Road vehicles Anchorages in vehicles and attachments to anchorages for child restraint systems Part 1: Seat bight anchorages and attachments ISO/TR 14646:2007, Road vehicles Side impact testing of child restraint syste
29、ms Review of background data and test methods, and conclusions from the ISO work as of November 2005 ECE Regulation No. 44-04, Uniform provisions concerning the approval of restraining devices for child occupants of power-driven vehicles (“child restraint system”) 3 Terms and definitions For the pur
30、poses of this document, the following terms and definitions apply. 3.1 child restraint system CRS any free-standing device intended to provide child vehicle occupants with an approved restraint NOTE CRSs comprise various categories such as car beds, infant restraints, toddler seats (forward- and rea
31、rward- facing), booster cushions and booster seats. Combination products may cover two or more of these product categories. 3.2 struck side side of a vehicle where lateral impact occurs 3.3 non-struck side opposite side to the struck side ISO/TS 29062:2009(E) 2 ISO 2009 All rights reserved3.4 hinged
32、 panel impactor to the child seat, which simulates the intruding inner side structure of the passenger compartment in lateral impact 3.5 intrusion plane extension upwards of the hinged panel inner surface, adjacent to the dummy head 3.6 sled deceleration starting point t 0start of the acceleration o
33、f the sled, e.g. the first contact of a deceleration sled with the braking system 4 Boundary conditions When analysing test results of ECE Regulation No. 95 side impact tests, it becomes evident that injuries are caused by a combination of both structural intrusion and vehicle acceleration. The intr
34、usion is defined by intrusion shape, intrusion depth and intrusion velocity. In addition, geometrical properties (such as door panel height, distance between side structure and CRS) of the struck car have a considerable influence. An appropriate side impact test procedure for CRS should be capable o
35、f reproducing the following properties: Intrusion velocity range: 7 m/s 10 m/s Intrusion depth: approx. 250 mm Sled acceleration range: 10 g 15 g Door panel height with respect to CR point: approx. 500 mm Distance between panel and CRS centre line: approx. 300 mm In addition, the timing of the impac
36、t between the intruding panel and CRS/dummy needs to be controlled for appropriate definition of impact severity. For background data and justifications, see ISO/TR 14646. In principle it is possible to achieve the above conditions by various test setups, e.g. realization of the intrusion by a trans
37、lational panel. The hinged panel method described below is one possible method which has been shown to be capable of meeting the physical parameters mentioned above. 5 Test method 5.1 General The test conditions are intended to represent the loadings in full-scale impact as closely as possible. When
38、 a vehicle experiences impact to its side by the front of another vehicle, the struck vehicle (body) is subject to a lateral acceleration and a velocity change. In addition, the struck side of that vehicle may intrude rapidly into the passenger compartment, impacting occupants seated on the struck s
39、ide adjacent to the impact. As regards a child restraint, the body acceleration affects the reaction of the anchorages and the inertial displacement of the CRS while the side intrusion affects the direct loading on the CRS. ISO/TS 29062:2009(E) ISO 2009 All rights reserved 3This complex interaction
40、cannot be replicated entirely in a simple sled test procedure. For the test procedure given in this Technical Specification, the body acceleration and intrusion of the inner panel structure have been specified independently: body acceleration is reproduced by the sled acceleration; intrusion is simu
41、lated by the motion of a hinged panel mounted on the sled. For two vehicles of equal mass, the velocity change of the struck vehicle in a side impact will be about one half of the impact velocity of the striking vehicle. Thus this method simulates a side impact of approximately 50 km/h. Due to the e
42、arly impact between panel and CRS when using a test method that represents intrusion, mathematical simulations have shown that the velocity change in the direction of travel of the struck vehicle has a marginal influence on the dummy readings. In the test method according to this Technical Specifica
43、tion, the forward velocity component is therefore disregarded in order to simplify the test set-up. In order to avoid excessive deformation of the ISOFIX attachments on the CRS in the side impact test setup, the anchorages are mounted to the test rig in a way to allow some movement in the Y directio
44、n. 5.2 Test facility and equipment 5.2.1 Test rig The test rig comprises a sled fitted with test bench; hinged panel; 2- and 3-point belt and ISOFIX anchorages (in accordance with ECE Regulation No. 44 and Annex A); top tether anchorages, seat bight anchorages, and floor (in accordance with ECE Regu
45、lation No. 44 and Annex A). See Figures 1 to 6. The sled is equipped with a means of generating a v corridor as shown in Figure 7 with a velocity change of 25 km/h 1 km/h. For the simulation of the intruding panel (inner side structure) on side impact, the hinged panel is moved during the sled decel
46、eration by a means that generates a panel angular velocity as given in Figures 8 and 9. The ISOFIX anchorages should be movable in the Y direction to avoid damage of the attachments, thus avoiding damage to the test equipment (e.g. dummies). The ISOFIX anchorages are individually fixed to a sliding
47、system allowing a movement of up to 200 mm. For a forward-facing CRS the test bench backrest is also movable in the Y direction and mechanically linked with the intruding panel. In a similar way, attachment of the CRS with seat belts should also have provisions to allow movement in the Y direction.
48、5.2.2 Dimensions and specifications The design and specifications of the test bench with anchorages is shown in Figures 1 to 6. The design and specifications of the hinged panel with padding are shown in Figures 3 and 6. ISO/TS 29062:2009(E) 4 ISO 2009 All rights reservedNOTE The figures show one pr
49、actical solution, where the seat back of the bench is moved to avoid conflict with the hinged panel. Alternative solutions may be used to avoid this interaction, as long as the relevant geometry and characteristics of the panel are maintained. The stiffness and strength of the hinged panel structure shall be sufficient in order that the panel structure will remain essentially undeformed during the test and to avoid excessive oscillations of the panel. The panel padding consists of 55
