A study of the upper leg component tests compared with pedestrian dummy tests

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Okamoto, Yutaka¹; Akiyama, Akihiko¹; Okamoto, Masayoshi¹; Kikuchi, Yuji¹

A study of the upper leg component tests compared with pedestrian dummy tests

Proceedings of the 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV)

Affiliations

¹Honda R&D Co., Ltd., Japan
Abstract

The upper leg component test proposed by EEVC WG17 is one of the tools for the evaluation of upper leg injuries in pedestrian accidents. Meeting the injury criteria set by EEVC for the upper legform impact test is one of the biggest challenges we can find in the reports. This problem was studied in previous papers using simulation models or reconstruction of pedestrian accidents.

The POLAR pedestrian dummy was constructed by HONDA R&D and GESAC INC., and some crash tests were conducted with it. The object of this study is to compare EEVC WG17 upper legform impact test conditions for utility vehicles with the full dummy test results. To reconstruct the deformation resulting from tests using the POLAR, the impact energy for the EEVC upper legform impact test should be decreased. Even the upper limit of 700J is too high.

Accident data analysis shows that the pelvis is the body part injured by the bonnet leading edge of the utility vehicle. So the impact force should be mainly considered for the evaluation of the bonnet leading edge performance.
Links

URL: http://www-nrd.nhtsa.dot.gov/pdf/nrd-01/Esv/esv17/Proceed/000 .pdf

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Cited By (14)

Year	Entry
2003	Ishikawa T, Kore H, Furumoto A, Kuroda S. Evaluation of pedestrian protection structures using impactors and full-scale dummy tests. In: Proceedings of the 18th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 19-22, 2003; Nagoya, Japan.
2005	Kerrigan JR, Murphy DB, Drinkwater DC, Kam CY, Bose D, Crandall JR. Kinematic corridors for PMHS tested in full-scale pedestrian impact tests. In: Proceedings of the 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 6-9, 2005; Washington, DC.
2005	Snedeker JG, Walz FH, Muser MH, Lanz C, Schroeder G. Assessing femur and pelvis injury risk in car‐pedestrian collisions: comparison of full body PMTO impacts, and a human body finite element model. In: Proceedings of the 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 6-9, 2005; Washington, DC.
2007	Untaroiu C, Shin J, Ivarsson J, Crandall J, Takahashi Y, Akiyama A, Kikuchi Y. Pedestrian kinematics investigation with finite element dummy models based on anthropometry scaling method. In: Proceedings of the 20th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 18-21, 2007; Lyon, France.
2007	Fredriksson R, Flink E, Boström O, Backman K. Injury mitigation in SUV-to-pedestrian impacts. In: Proceedings of the 20th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 18-21, 2007; Lyon, France.
2009	Untaroiu C, Shin J, Crandall J, Fredriksson R, Bostrom O, Takahashi Y, Akiyama A, Okamoto M, Kikuchi Y. Development and validation of pedestrian sedan bucks using finite element simulations: application in study the influence of vehicle automatic braking on the kinematics of the pedestrian involved in vehicle collisions. In: Proceedings of the 21st International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 15-18, 2009; Stuttgart, Germany.
2011	Nie B, Xia Y, Huang J, Zhou Q. A simplified model of pedestrian upper legform impact for estimate of energy-absorption space underneath bonnet lead. In: Proceedings of the 22nd International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 13-16, 2011; Washington, DC.
2005	Kerrigan J, Kam C, Drinkwater C, Murphy D, Bose D, Ivarsson J, Crandall J. Kinematic comparison of the Polar-II and PMHS in pedestrian impact tests with a sport-utility vehicle. In: Proceedings of the 2005 International IRCOBI Conference on the Biomechanics of Impact. September 21-23, 2005; Prague, Czech Republic.159-174.
2005	Kerrigan JR, Drinkwater DC, Murphy DB, Kam CY, Crandall JR. Comparison of full scale pedestrian impact tests with PMHS and a pedestrian dummy. In: Proceedings of the 1st Ohio State University Injury Biomechanics Symposium. May 19-21, 2005; Columbus, OH.
2003	Snedeker JG, Muser MH, Walz FH. Assessment of pelvis and upper leg injury risk in car-pedestrian collisions: comparison of accident statistics, impactor tests and a human body finite element model. Stapp Car Crash J. 2003;47:437-457. SAE 2003-22-0019.
2013	Matsui Y, Oikawa S, Ando K. Risks of pedestrian serious injuries and fatalities associated with impact velocities of cars in car-versus-pedestrian accidents in Japan. Stapp Car Crash J. November 2013;57:201-217.
2008	Untaroiu CD, Shin J, Ivarsson J, Crandall JR, Subit D, Takahashi Y, Akiyama A, Kikuchi Y. A study of the pedestrian impact kinematics using finite element dummy models: the corridors and dimensional analysis scaling of upper-body trajectories. Int J Crashworthiness. September 2008;13(5):469-478.
2010	Untaroiu CD, Shin J, Crandall JR, Fredriksson R, Bostrom O, Takahashi Y, Akiyama A, Okamoto M, Kikuchi Y. Development and validation of pedestrian sedan bucks using finite-element simulations: a numerical investigation of the influence of vehicle automatic braking on the kinematics of the pedestrian involved in vehicle collisions. Int J Crashworthiness. 2010;15(5):491-450.
2008	Kerrigan JR. A Computationally Efficient Mathematical Model of the Pedestrian Lower Extremity [PhD thesis]. Charlottesville, VA: University of Virginia; January 2008.