Bumper system evaluation using an experimental pedestrian dummy

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Kajzer, Janusz¹; Aldman, Bertil¹; Mellander, Hugo²; Planath, Ingrid²; Jonasson, Kjell²

Bumper system evaluation using an experimental pedestrian dummy

Proceedings of the 12th International Technical Conference on Experimental Safety Vehicles (ESV)

Affiliations

¹Chalmers University of Technology, Sweden

²Volvo Car Corporation, Sweden
Abstract

Experimental studies have been undertaken using a rotationally symmetrical pedestrian dummy (RSPD) as a tool for the assessment of car bumper aggressivity to pedestrians in low speed collisions (abour 20 km/h). Aggressivity of different current bumpers, experimental foam bumpers and a standard bumper with an additional structure fitted below the bumper, was evaluated.

The frontal bumper is now required to protect certain car structures in lower speed collisions (≤ 8 km/h). Such a bumper with extended structure mounted below would protect the adult pedestrian leg from knee injuries and probably lower leg fractures in pedestrian accidents at or below 20 km/h. This would require a structure which protrudes considerably in the front of the car and is designed to actively lower the contact point during impact. However, reasonably good protection can also be achieved if the scope is limited to a lower speed range. An additional structure fitted below a standard bumper is capable of transferring the forces necessary to accelerate the leg and reduce contact with the bumper. As an example results from tests with a structure which is only protruding about 30 mm in front of the standard bumper are shown.

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Cited By (9)

Year	Entry
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