Research on head-neck injury of far-side occupant in side pole impact of electric vehicle with dual front passengers

doi:10.3969/j.issn.1674-8484.2025.02.003

Abstract

Abstract:

To investigate the impact of occupant size differences and mutual interactions on the far-side occupant in side pole collisions involving electric vehicles, this study used a 5th percentile female as the near-side occupant and a 50th percentile male as the far-side occupant, and constructed various simulation scenarios by altering the collision angle and position. A linear fitting method was employed to numerically analyze the kinematic responses and head and neck injuries of the far-side occupant under different collision conditions. The results show that with the collision angle increasing, the lateral displacement of the far-side occupant increases, the restraining effect of the seatbelt weakens, and the occupant is more likely to collide with the near-side occupant or themselves. When the collision angle exceeds 45°, the HIC₁₅ predicted AIS 3+ injury risk surpasses 50%. The Head Injury Criteria (HIP) values indicate that, in all cases, the head absorbs a significant amount of energy, suggesting a high risk of AIS 3+ traumatic brain injury for the far-side occupant. Neck anterior longitudinal ligament (ALL) injuries predominantly occur in high-angle collisions and are correlated with the collision angle. Additionally, the posterior longitudinal ligament (PLL), capsular ligament (CL), and interspinous ligament (ISL) show a significant risk of neck ligament injuries in almost all cases.

Key words: electric vehicles, side pole impact, far-side occupant, head injury, neck injury

CLC Number:

U461.91

LÜ Yuanpeng, WANG Fang, LONG Chunguang, WANG Danqi, ZOU Tiefang, LIU Yu. Research on head-neck injury of far-side occupant in side pole impact of electric vehicle with dual front passengers[J]. Journal of Automotive Safety and Energy, 2025, 16(2): 207-216.

Figures/Tables 12

References 34

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