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CSME 2026/02
Volume 47 No.1
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85-91
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Analysis of Pedestrian Lower Limb Safety in Pedestrian-SUV Impact and Study of Structural Parameters of Headlights
Sen Xiao a, Li-Dong Zhang a, Chen-Yang Ji a, Bao-Feng Lv b, Yao-Xin He b and Bao-Tian Qu c
aSchool of Mechanical Engineering, Hebei University of Technology, Tianjin, 300401, China.
bHebei Automobile Technology Innovation Center, Great Wall Motor Company, Baoding, Hebei, 071000, China.
cRadiology Department of Luodian Hospital, Baoshan District, Shanghai 200400, China.
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Abstract:
In a pedestrian–vehicle impact, the lower limbs of pedestrians are extremely vulnerable to injury. In this study, pedestrian lower limb injury was analyzed by establishing the front-end of a sport utility vehicle and advanced pedestrian legform impactor impact conditions. Moreover, a structural parametric study based on the headlight movement space was conducted to reduce pedestrian lower limb injury. Results showed that the maximum bending moment of pedestrians’ lower limbs was reduced by 73 Nm when the headlight rearward movement space was increased by 40 mm. Results also indicated that when pedestrians collided with the car headlight, the kinetic energy of their lower limbs was reduced owing to the rearward movement of the headlight. Consequently, injuries suffered by pedestrians’ lower limbs were reduced. This study provides a reference for pedestrian lower limb protection.
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Keywords: lower limb injury, pedestrian safety, headlight, SUV, aPLI
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©
2026
CSME , ISSN 0257-9731
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