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Summary & Details

Analysis of Pedestrian Chest Injury Mechanisms in High-Hood SUV Impacts Change in Whole-Body Kinematics of THUMS Induced by Vehicle Reaction Forces

高フードSUV歩行者保護における胸部受傷メカニズムの解析車体反力によるTHUMS全身運動の変化

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Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20266398

Paper/Info type: Proceedings (Autumn)

No.174-26

Pages: 1-6(Total 6 p)

Date of publication: Oct 2026

Publisher: JSAE

Language: Japanese

Event: 2026 JSAE Annual Congress (Autumn)

Detailed Information

Author(J)	1) 飯塚洋二朗, 2) 植木大空, 3) 川島潤司, 4) 今井裕明, 5) 濱田満寛, 6) 中根裕司
Author(E)	1) Yojiro Iizuka, 2) Sora Ueki, 3) Junji Kawashima, 4) Hiroaki Imai, 5) Mitsuhiro Hamada, 6) Yuji Nakane
Affiliation(J)	1) トヨタ自動車, 2) メイテック, 3) トヨタ自動車, 4) トヨタ自動車, 5) トヨタ自動車, 6) トヨタ自動車
Affiliation(E)	1) Toyota Motor, 2) Meitec, 3) Toyota Motor, 4) Toyota Motor, 5) Toyota Motor, 6) Toyota Motor
Abstract(J)	高フードSUV実車モデルにおける歩行者胸部傷害メカニズム解明を目的に，歩行者THUMSによる衝突解析を実施した．胸たわみは骨盤支持を介したバンパ反力による胸郭速度に依存し，肋骨ひずみは胸郭へ作用するフード反力の影響を受けることが示された．これらから，胸部傷害に対する車体反力の重要性が示唆された． Translation
Abstract(E)	To clarify the mechanism of pedestrian chest injury in high-hood SUV impacts, a crash simulation was conducted based on the THUMS pedestrian model. Chest deflection was found to depend on thoracic impact velocity induced by bumper reaction forces transmitted through the pelvis support, whereas rib strain was primarily influenced by direct hood reaction forces acting on the thorax. These findings indicate the critical importance of vehicle reaction forces in determining pedestrian chest injury.

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