This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Injury Mitigating Benefits of an Inflatable Shoulder Belt for Seat Integrated Application
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 01, 1999 by SAE International in United States
Annotation ability available
This study examines the added safety improvement effects of the Integrated (Belted) Structural Seat (ISS™) combined with an inflatable shoulder belt that inflates to form a cylindrical airbag during an automobile frontal crash. Although inflatable shoulder belts have been studied for many years with proven results, occupant impact response data and sled testing has been very limited to date when combining these two relatively new types of automotive safety systems.
Accident studies show that frontal collisions, are by far the crashes with the most serious consequences. In frontal collisions, the main lesions placed upon the occupants are thoracic, mainly high chest deceleration, head injuries which result from the high deceleration levels due to occupant’s contact with the vehicle interiors, and rib fractures resulting from the high seat belt contact forces. In order to improve this situation, it becomes important to ensure that the means used to restrain the automotive occupant (s) work as efficiently as possible early in the crash event to reduce the motion of the torso and head.
With this perspective, it becomes important to have an occupant restraint system which has the overall injury mitigating benefits of the conventional restraint systems, but at the same time eliminates certain other potential injury mechanisms. The seat integrated inflatable shoulder belt is one such self contained restraint system which has improved occupant protection capabilities.
HyGe™ sled tests were conducted to evaluate the injury mitigating benefits of the seat integrated inflatable shoulder belt restraint system. Sled tests were conducted for the three different sized Hybrid III dummies and using a 35 mph crash pulse. Detailed results of the sled tests are presented later in this paper, and the results are also compared with the published NCAP results for a mid-size production vehicle that has a similar vehicle crash pulse and a conventional 3-point seat belt and airbag system.
CitationKarigiri, S., McClenathan, R., Kargol, J., and Shanmugavelu, I., "Injury Mitigating Benefits of an Inflatable Shoulder Belt for Seat Integrated Application," SAE Technical Paper 1999-01-0085, 1999, https://doi.org/10.4271/1999-01-0085.
- Vehicle Integration and Evaluation of Advanced Restraint Systems. Test Reports - Phase A and Phase B. Report No. 8300-77-146. Contract DOT-HS-6-01307
- Strother Charles Fitzpatrick Michael U. Egbert Timothy P. Development of Advanced Restraint Systems for Minicars RSV SAE 766043
- Mertz, H. J. Injury Assessment Values Used to Evaluate Hybrid III Response Measurements General Motors Corporation NHTSA Docket Submission VSG 2284 Part III, Attachment I, Enclosure 2 1984
- Patrick, L. M. Chou C. Response of the Human Neck in flexion, extension, and lateral flexion Vehicle Research Institute Report No. VRI-7-3 Society of Automotive Engineers Warrendale, Pennsylvania 1976
- Walsh Michael J. Sled Tests of Three-Point Systems Including Air Belt Restraints Prepared for US DOT NHTSA, January 1976 DOT-HS-5-01017
- Burkes James M. Robert Cromack J. Ziperman Haskell Impact Testing of Allied Chemical “Inflataband” with Dummies and Human Volunteers II Prepared for US DOT NHTSA October 1975 DOT-HS-4-00933
- Melvin, John W. Nahum Alan M. Accidental Injury: Biomechanics and Prevention