Influence of vehicle secondary impact following an emergency braking on an unbelted occupant's neck, head and thorax injuries

Influence of vehicle secondary impact following an emergency braking on an unbelted occupant's neck, head and thorax injuries
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紧急制动后车辆二次碰撞对未系安全带乘员颈部、头部和胸部损伤的影响

DOI:
10.1080/13588265.2013.775094
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发表时间:
2013
影响因子:
1.9
通讯作者:
Bastien C
Bastien C
中科院分区:
工程技术4区
文献类型:
--
作者:
Bastien C

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多年来,被动安全已经减少了道路上的死亡人数。然而,它对乘员安全的影响现在已经稳定下来,这意味着需要新的主动安全功能来进一步减少伤亡人数。这些主动安全功能,如自动紧急制动(AEB),旨在防止车辆碰撞,减少车辆碰撞时的动能。先前的一项研究表明,未系安全带的乘员的运动学受到预制动阶段的影响,这表明乘员的手在方向盘上的位置,加上支撑行为,可能会导致乘员在第二次刚性墙壁撞击的情况下错过展开的安全气囊。本文将基于典型的车辆正面事故场景,通过计算碰撞脉冲来研究车辆二次碰撞碰撞模式的变化,并总结这些对人类乘员颈部、头部和胸部损伤的影响。
Passive safety has for many years reduced the number of fatalities on the roads. However, its effect on occupants’ safety has now stabilised, meaning that new active safety features are needed to reduce further the number of casualties. These active safety features, like autonomous emergency braking (AEB), aim to prevent vehicle collisions and reduce the vehicle kinetic energy on impact. A previous study has shown that unbelted occupants kinematics are affected by the pre-braking phase, suggesting that the occupant's hand positions on the steering wheel, combined with a bracing behaviour, could cause the occupant to miss the deploying airbag in the case of a secondary rigid wall impact.This paper will investigate the variations of the secondary vehicle impact crash patterns by calculating crash pulses based on typical vehicle frontal accident scenarios and conclude on these effects on the human occupant's neck, head and thorax injuries.
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