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Comparison of Load Distributions between Human Occupants and ATDs in Normal and Non-normal Occupant Positions and Postures
Technical Paper
2006-01-1435
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In occupant sensing system development, the Anthropomorphic Test Dummy (ATD) and the Occupant Classification ATD (OCATD) are frequently used to simulate live human subjects in the testing and validation of weight based occupant sensing systems. A study was conducted to investigate the range of loading differences between these ATDs and live human subjects over various seating postures and conditions. The results of the study revealed that differences in seat load patterns could be significant, even though both the ATD and live humans are in the same weight and body size categories. Seat loading was measured using Hybrid III (5th percentile female, 50th percentile male, and 3 year old) ATDs, OCATDs (OCATD5 - 5th percentile female, and OCATD6 - 6 yr old child), and a CRABI (12-month old) dummy. Human subjects in the same weight and height categories as the above listed ATDs were also measured. The study findings indicate: (1) Passenger off-loading1 can be affected by seating conditions; (2) ATDs have less off-loading than human subjects in normally seated postures (or those similar to normally seated) (3) The Center of Mass of ATDs is closer to the front of the seat at normally seated position (or positions/postures similar to normally seated). These differences are more obvious for Hybrid III ATDs than OCATDs; (4) Unlike adults, the load patterns between child ATDs and live child occupants are reasonably consistent.
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Citation
(Lee) Zhang, L., Fortune, D., Werbelow, J., and Chen, L., "Comparison of Load Distributions between Human Occupants and ATDs in Normal and Non-normal Occupant Positions and Postures," SAE Technical Paper 2006-01-1435, 2006, https://doi.org/10.4271/2006-01-1435.Also In
References
- National Highway Traffic Safety Administration 49CFR571, 587, and 595 Federal Motor Vehicle Safety Standards: Occupant Crash Protection; Proposed Rule Federal Register 63 181 49958 50021 September 18 1998
- Billen K. Fedespiel L. Schockmel P. Serban B. Sherrill W. 1999 Occupant classification system for smart restraint systems 1999 SAE Congress Proceedings
- Sakai M. Hanneda H. Sakamotor K. Takeuchi T. Hasegawa Y. Fujimoto O. Enomoto T. Itoh D. 2004 Development of occupant classification system 2004 SAE Congress Proceedings
- Pewinski W. Ventura K. Sadek J. 2001 A preliminary look at occupant sensing and child restraints 2001 SAE Congress Proceedings
- Bevan M. 2002 Response of seat-based electric field sensors to humans and ATDs 2002 SAE Congress Proceedings
- Bevan M. Kotiarski K. Nickerson J. Jablonski D. Saleh W. Chen M. 1999 Occupant position sensor compatibility with 50 th percentile male Hybrid III dummy 1999 SAE Congress Proceedings
- Pajon M. Chabert L. Dirand H. Jaillet L. Launay C. Da Silva J. Parbaud P. Voisin F. 2003 BioVolume: The seat integrated human based system to meet FMVSS208 automatic suppression concerns 2003 SAE Congress Proceedings
- Lambert D. 1998 Direct thermal detection for front passenger seat airbag suppression 1998 SAE Congress Proceedings
- DoT Docket document: Ex parte meeting between Toyota and NHTSA, Docket No. NHTSA-2000-7013-60
- DoT Docket document: Petition for reconsideration FMVSS208, Occupant Crash Protection, Docket No. NHTSA-2000-7013-25
- Bevan M. 2004 Introduction to Occupant Sensors SAE Seminar
- SAE Human Factors Engineering Committee 1984 Motor Vehicle Dimensions SAE J1100
- Zhang L. et al. 2004 Survey of Front Passenger Posture Usage in Passenger Vehicles SAE 2004-01-0845
- NHTSA 2003 Child passenger safety: Proper Child Safety Seat Use Chart http://www.nhtsa.dot.gov/people/injury/childps/
- CDC The Third National Health and Nutrition Examination Survey 1988-94 (NHANES III)
- DoT Docket document: Ex Parte Information Received During Technical Workshop
- FFTS Product Catalog http://www.ftss.com/pcat/
- Adams D. Morgan G. B. Nghi T. Salloum M. J. O'Bannon T. 1999 Creating a biofidelic seating surrogate SAE 1999-01-0627
- Reinecke S. Coleman K. Pope M. 1994 Measurement of lumbar and pelvis motion during sitting Hard Factors about Soft Machines Lueder Reni Noro Kegeyu Taylor & Francis Bristol, PA