Development and full-scale dummy tests of a pop-up hood system for pedestrian protection

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Nagatomi, Kaoru¹; Hanayama, Ken¹; Ishizaki, Tatsuya¹; Sasaki, Sakae¹; Matsuda, Kazuo¹

Development and full-scale dummy tests of a pop-up hood system for pedestrian protection

Proceedings of the 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV)

Affiliations

¹Honda R&D Co., Ltd., JAPAN
Abstract

A pop-up hood system has been developed to reduce the severity of head injuries to pedestrians in pedestrian-to-automobile accidents.

The system employs sensors located on the bumper to detect impact with a pedestrian. If an impact occurs, a signal is sent to an actuator to raise the rear portion of the engine hood approximately 100mm. This provides a space between the engine and other hard components and the hood, resulting in reduced pedestrian head injuries.

Previous studies have mainly employed headform impactors to evaluate the head injury criteria (HIC) values for pop-up hoods.

This report describes studies of the effect of the pop-up hood on injury parameters and kinematics using the POLAR pedestrian dummy.

The effectiveness of the pop-up hood system was confirmed by the significant reduction of HIC values in impact tests using the POLAR dummy.
Links

URL: http://www-nrd.nhtsa.dot.gov/pdf/esv/esv19/05-0113-O.pdf

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Cited By (14)

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2010	Badea A, Furones A, Páez FJ, González C. Multivariate modeling of pedestrian fatality risk through on the spot accident investigation. Int J Automot Technol. 2010;11(5):711-720.
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2007	Lee KB, Jung HJ, Bae HI. The study on developing active hood lift system for decreasing pedestrian head injury. In: Proceedings of the 20th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 18-21, 2007; Lyon, France.
2013	Takahashi H, Miyazaki H, Narita S, Shamoto T, Mase Y. Development of pop-up hood system for pedestrian protection. In: Proceedings of the 23rd International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 27-30, 2013; Seoul, South Korea.
2015	Ames E, Martin P. Pop-up hood pedestrian protection. In: Proceedings of the 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 8-11, 2015; Gothenburg, Sweden.
2019	Umezawa M, Okamura K, Nakamura H, Asanuma H, Bae H. Research of bicyclist detection by enhanced pedestrian detection system with ADAS. In: Proceedings of the 26th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 10-13, 2019; Eindhoven, Netherlands.
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2020	Shang S. Pedestrian Whole Body Ground Contact Mechanisms and Head Injury Assessment Following Vehicle Impact [PhD thesis]. Trinity College Dublin; April 2020.
2023	Gildea K. A Biomechanical Analysis of Cyclist Collisions in Ireland [PhD thesis]. Trinity College Dublin; March 2023.
2017	Chen H. Evaluating Pedestrian Head Sub-System Test Procedure Against Full-Scale Vehicle-Pedestrian Impact Using Numerical Models [PhD thesis]. Charlottesville, VA: University of Virginia; May 2017.