1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2011 SAE International All rights reserved. No part of this publication ma
3、y be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside US
4、A) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J1630_201101SURFACEVEHICLERECOMMENDEDPRACTICEJ1630 JAN2011 Issued 1995-03Revised 2011-01 Supers
5、eding J1630 DEC2001 (R) Airbag Module Deployment Test Procedure RATIONALEThis document was revised to reflect numerous changes in measurement technology, airbag module configurations, and industry practices. TABLE OF CONTENTS 1. SCOPE 22. REFERENCES 22.1 Applicable Documents 22.1.1 SAE Publications
6、. 23. DEFINITIONS . 24. GENERAL TEST REQUIREMENTS . 24.1 Test Facility . 24.2 Safety Requirements 34.3 Equipment List 35. EQUIPMENT SPECIFICATION 35.1 Mounting Fixture . 35.2 Pressure Transducer 45.3 High-Speed Film and/or Video Camera 45.4 Data Acquisition System . 45.5 Temperature Conditioning Cha
7、mbers . 56. TEST PROCEDURE . 57. TEST DATA DOCUMENTATION . 77.1 Pressure Versus Time Plot . 77.1.1 Typical Data Measurements . 77.2 Video Analysis . 98. NOTES 98.1 Marginal Indicia . 9APPENDIX A TRANSDUCER SELECTION 10APPENDIX B PRESSURE TAP INSTALLATION GUIDELINES . 11APPENDIX C TYPICAL TEST SET-UP
8、 DIAGRAMS 13Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1630 Revised JAN2011 Page 2 of 141. SCOPE This SAE Recommended Practice describes a method to be used for the static deployment of air
9、bag module assemblies. The results obtained from the deployment tests will be used to verify compliance with design requirements and/or specifications, and for other engineering purposes such as module performance comparisons, and/or CAE input or validation. The purpose for this procedure is to desc
10、ribe recommended test methods to ensure, to the extent possible, reliable and reproducible test results for driver airbag modules, passenger airbag modules, or other airbag modules (e.g., side airbags, roof rail airbags, knee bolster airbags, etc.). Performance limits or acceptance criteria are not
11、established as they are typically defined based on specific vehicle design requirements and/or manufacturer specifications. It is intended to be a general procedure for repetitive testing and suggests only general guidelines for the safe conduct of tests and reliable data correlation. 2. REFERENCES
12、2.1 Applicable Documents The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-00
13、01, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.SAE J211-1 Instrumentation for Impact Test - Part 1 - Electronic Instrumentation SAE J211-2 Instrumentation for Impact Test - Part 2 - Photographic Instrumentation SAE J1538 Glossary of Automotive Inflatable Res
14、traint Systems 3. DEFINITIONS Refer to SAE J1538 for terms used in this document. 4. GENERAL TEST REQUIREMENTS Deployment test methods used for acceptance and performance evaluation of airbag module assemblies shall provide accurate, repeatable, and reproducible results, with considerations made to
15、minimize the effects of test-to-test and/or lab-to-lab variability in test equipment, module fixturing, and ambient conditions of the lab and/or specimen storage areas (temperature, humidity, and atmospheric pressure). Toward this end, and with the added incentives of cost and time effeciencies, the
16、se tests are generally performed outside the actual vehicle when possible - using only those portions of the actual vehicle that directly influence the applicable performance of the module or the outcome of the test. 4.1 Test Facility Airbag module assemblies (containing an inflator) are typically D
17、epartment of Transportation (DOT) classified. Therefore, the facility for conducting tests on pyrotechnic devices must comply with all local and state building codes, including all necessary certifications/permits for receipt, storage, and shipping of these materials. Copyright SAE International Pro
18、vided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1630 Revised JAN2011 Page 3 of 14A suitable floor plan and work area design is important for proper execution of tests. Features shall include a physical safety barrier between
19、test personnel and the device under test. Environmental control is important for both the pre-test conditioning and the deployment. Differences in temperature humidity, and/or atmospheric pressure have been shown to have an effect on certain test results. Ambient laboratory temperature of 22 C 2 C s
20、hall apply unless otherwise noted for a specific test. The relative humidity (% R.H.) and atmospheric pressure (kPa) for each test shall be clearly stated in the test data and/or test report. An exhaust fan is recommended to vent smoke and particulate from the test bay prior to re-entry by test pers
21、onnel. 4.2 Safety Requirements In consideration of safety for test personnel working with experimental devices, appropriate facilities and training must be provided. Examples of the necessary safety equipment include remote airbag triggering systems, shielding for personnel; test warning system (i.e
22、., siren and/or light); and personal safety equipment (PSE) such as eye protection, gloves, hearing protection, respirators, and grounding straps, if required. Proper written safety procedures should be followed in accordance with standard ordinance and pyrotechnic industry practice. All applicable
23、OSHA safety standards must be followed.4.3 Equipment List The equipment will typically consist of the following basic components: a. Mounting Fixture - The physical structure to which the module is mounted for the deployment test, and those portions of the actual vehicle that directly influence the
24、applicable performance of the module or the outcome of the test b. Pressure Transducer - Measures the pressures inside the bag and/or inflator c. Data Acquisition System - Records and displays test data, such as the internal bag and/or inflator pressure versus time results, and temperature versus ti
25、me of the module components during conditioning, when applicable d. Temperature Conditioning Chamber - Conditions module to desired deployment temperature (additional equipment, such as heating lamps, may be required for some tests) e. High-Speed Video Equipment f. Lighting System - Intensity matche
26、d to video specifications and desired capture rate g. Deployment Source - Provides the proper stimulus to actuate the inflator h. Temperature Probe - Measure conditioning chamber and test component temperature during pretest conditioning i. Strobe Light - To denote time zero on high-speed video for
27、use during analysis j. Labeling equipment 5. EQUIPMENT SPECIFICATION The equipment used in the module deployment test facility shall meet the following specifications: 5.1 Mounting Fixture The module test mounting fixture shall allow for the secure attachment of the test airbag module assemblies and
28、 all related vehicle components, to the extent necessary for the purpose of the test, needed for the module to deploy naturally (as it would when installed in the intended vehicle). When possible, the actual module attachment hardware used in the vehicle should be used to avoid possible unintended c
29、onsequences. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1630 Revised JAN2011 Page 4 of 14The airbag module shall be oriented so that the airbag (cushion) may deploy freely with no unnatural
30、 obstructions presented by the fixture or surroundings. The test fixture shall hold the airbag module in an orientation and manner consistent with the intended design of the airbag module assembly and/or the objective of the test. The specimens being tested (airbag module and related vehicle compone
31、nts) must be identified for traceability purposes. This identification should be visible by the high speed video equipment. 5.1.1 The test fixture shall provide a level of support to the airbag module at least as rigid as the automobile structure to which it will be installed.5.1.2 Any physical obst
32、ructions to bag deployment that are normally present in the vehicle for which the test module is intended should be simulated in the test fixture (e.g., windshield surface, instrument panel surface, etc.). 5.2 Pressure Transducer A pressure transducer may be utilized to measure pressure inside the a
33、irbag. Recommended pressure transducer specifications are provided in Appendix A. All transducers, instrumentation, and data filters (analog and digital) shall be selected per SAE J211. 5.2.1 The pressure transducer and “extension tube,” when used, should be mounted in a location clear from the unfo
34、lding bag, with the pressure inlet located in an area of reduced gas flow within the module to minimize the “Venturi” effect on the measured pressure. Caution must be observed during interpretation of all module pressure data due to the dynamic variation of pressure during cover opening and bag fill
35、. Guidelines for installing pressure taps in the various airbag module configurations is provided in Appendix B. 5.2.2 Where practicable, pressure transducers used for comparison testing should be standardized. Results from different transducer types or models may vary significantly - especially whe
36、n measuring short duration pressure pulses such as those produced during airbag deployment door break-out. The break-out pressure reading will also be affected by pick-up tube diameter, length, and material variations. Longer and/or more flexible tubes will have a damping effect on the data similar
37、to filtering. 5.2.3 The dynamic range of the pressure transducer must be compatible with the temperature and pressure expected from the test. A means of calibrating the pressure transducers prior to testing shall be provided. Pressure transducer calibrations shall be conducted regularly and calibrat
38、ion results recorded. Refer to the transducer manufacturers recommended procedure for calibrations. See Appendix A for recommended performance specifications.5.3 High-Speed Film and/or Video Camera The high-speed filming or video taping system should consist of a camera and a recording/monitoring sy
39、stem which can be synchronized for camera start-up during the module deployment test. The filming or taping capability should be at least 1000 pictures per second (pps). A means of verifying film speed should be incorporated into the filming/video operation. Some customer standards may require highe
40、r speed capability (i.e., for bag unfolding or cover integrity 3000 pps is recommended). The lighting should be of proper intensity to create a quality film/video image. Multiple cameras may be required to view various module details (i.e., top view, side view, plan view, cover/door/hinge detail, et
41、c.).5.4 Data Acquisition System A data acquisition system (per SAE J211) shall be provided to measure and record pressure output versus time for the bag pressure and inflator, if applicable. Filter requirements, data sampling rate of test system, transducer frequency response, and amplifier frequenc
42、y response should be such that there is minimal effect on data accuracy. Overall accuracy of the data acquisition system should be within 3%. The data acquisition system must have clearly defined capabilities such as sample rate, resolution and digital filtering as supported by SAE J211. Data record
43、ed should include at least 20ms of data prior to T=0, and sufficient duration after T=0 to capture the duration of interest for the test. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1630 Rev
44、ised JAN2011 Page 5 of 145.5 Temperature Conditioning Chambers Temperature conditioning chambers should be provided to temperature condition modules prior to testing. For the safety of personnel, protective chambers should be considered. Chamber capabilities typically extend from -55 to 120 C, but a
45、s a minimum, should extend from -40 to 90 C. The temperature conditioning chamber should be capable of providing a uniformity of the temperature extremes with control level variations not to exceed 3 C throughout the chamber. On passenger side systems, sun load temperature differential may be requir
46、ed. This can be accomplished by using heat lamps or other heating means (see 6.1.1). 6. TEST PROCEDURE Ambient test lab conditions (e.g., temperature, percent relative humidity, and barometric pressure) should be recorded. 6.1 Temperature Conditioning Test samples may be temperature conditioned prio
47、r to testing. The typical lower and upper temperature ranges for conditioning modules are -30 C 3 C and +80 C 3 C. Ambient test temperature is 22 C 3 C. The modules shall be conditioned for a sufficient period of time to ensure that the entire module assembly (including internal temperature) is at t
48、he required temperature. Typical conditioning times are 3 to 4 h, but if the module is mounted to a significant thermal mass (such as a vehicle) the time may need to be extended. Modules (installed into the test fixture) are placed in the conditioning chamber in a manner that allows free air movemen
49、t around assemblies, and no direct contact with chamber walls. To determine the required soak time needed to properly condition a specific module design, an inert sample can be instrumented with thermocouples to monitor internal component temperatures. 6.1.1 When testing passenger modules, actual in-vehicle
