This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effects of Different Vehicle Parameters on Car to Car Frontal Crash Fatality Risk Estimated through a Parameterized Model
Technical Paper
2006-01-1134
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
For the purposes of analyzing and understanding the general effects of a set of different vehicle attributes on overall crash outcome a fleet model is used. It represents the impact response, in a one-dimensional sense, of two vehicle frontal crashes, across the frontal crash velocity spectrum. The parameters studied are vehicle mass, stiffness, intrusion, pulse shape and seatbelt usage. The vehicle impact response parameters are obtained from the NCAP tests. The fatality risk characterization, as a function of the seatbelt use and vehicle velocity, is obtained from the NASS database. The fatality risk is further mapped into average acceleration to allow for evaluation of the different vehicle impact response parameters. The results indicate that the effects of all the parameters are interconnected and none of them is independent. For example, the effect of vehicle mass on fatality risk depends on seatbelt use, vehicle stiffness, available crush, intrusion and pulse shape. As a result of this interaction, the net safety outcome from changes to one of these parameters to reduce fatality risk will depend on the state of the others. For example, vehicle parameter changes, such as increasing stiffness to prevent intrusion, may be beneficial to the belted occupants and counter-indicated for the unbelted; conversely, changes to benefit the unbelted may be counter-indicated for the belted. In general, the effect of changes made to different vehicle attributes intended to improve overall fleet fatality risk will depend on the state of the fleet at the time of the introduction of the changes. Consequently, short-term transitional effects will exist until the changes are complete throughout the fleet, thus rendering a new equilibrium.
Recommended Content
Authors
Citation
Nusholtz, G., Xue, J., Shi, Y., Famili, F. et al., "Effects of Different Vehicle Parameters on Car to Car Frontal Crash Fatality Risk Estimated through a Parameterized Model," SAE Technical Paper 2006-01-1134, 2006, https://doi.org/10.4271/2006-01-1134.Also In
SAE 2006 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V115-6; Published: 2007-03-30
Number: V115-6; Published: 2007-03-30
References
- Evans, L. “Traffic Safety” Science Serving Society 2004
- Kahane, C. J. “Vehicle Weight, Fatality Risk and Crash Compatibility of Model Year 1991–99 Passenger Cars and Light Trucks” 2003
- Padmanaban, J. “Influences of Vehicle Size and Mass and Selected Driver Factors on Odds of Driver Fatality” 47 th Annual Conference Association for Advancement of Automotive Medicine Lisbon, Portugal 2003
- Nusholtz, G. S. Rabbiolo, G. Shi, Y. “Estimation of the Effects of Vehicles Size and Mass on Crash-Injury Outcome through Parameterized Probability Manifolds” SAE paper 2003-01-0905 2003
- Nusholtz, G. S. Famili, F. Di Domenico, L. Ben Aoun, Z. Cehn, R. F. Shi, Y. Rao, A. M. Hongsakaphadana, Y. “Air Bag Effectiveness as a Function of Impact Speed” Traffic Injury Prevention 4 128 135 2003
- Joksch, H. Massie, D. Pichler, R. “Vehicle aggressivity: fleet characterization using traffic collision data” 1998
- Kullgren, A. Krafft, M. Malm, S. Ydenius, A. ”The Influence of Crash Pulse Characteristics on Injury Risk in Real-Life Frontal Impacts” SAE Technical Paper Series, (1990-08-0179) 9 12 1999
- Agaram, V. Xu, L. Wu, J. Kostyniuk, G. Nusholtz, G. “Comparison of Frontal Crashes in Terms of Average Acceleration” SAE Paper 2000-01-0880 2000
- Wu, J. Bilkhu, S. Nusholtz, G. S. “An Impact Pulse-Restraint Energy Relationship and Its Applications” SAE paper 2003-01-05-05 2003
- Cohen, S. D. Hindmarsh, A. C. “CVODE User Guide” Lawrence Livermore National Laboratory Sept. 1994
- Wu, J. Personal communication DaimlerChrysler Corporation 2005
- Toy, E. L. “The Distribution of Vehicle Mass in the On-Road Fleet of Passenger Vehicles” SAE paper 2004-01-1161 2004
- Malliaris, A. C. et al. “Final Report: Occupant Exposure and Incidence of Casualties in Light Vehicle Crashes” Dec. 27 1997