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不同坐姿乘员在自动驾驶汽车碰撞中的损伤仿真实验

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为研究不同坐姿乘员在自动驾驶汽车中的碰撞安全性,筛选了7种具有代表性的乘员姿态(包括头部、上肢和躯干的变化)进行正面碰撞的仿真实验,对其乘员运动学和所受载荷进行了对比分析,研究其姿态对乘员碰撞损伤的影响.结果表明:在正面碰撞仿真实验中,倚靠姿态乘员的综合损伤风险与其他姿态相比更高,较交谈姿态,倚靠姿态乘员胸部压缩量增大了45.5%,肋骨骨折严重,内脏器官应变提高了48.8%,左倾姿态乘员损伤风险则明显降低,其头部损伤风险减少了49.1%,胸部损伤降低了14.4%.基于此,提出乘员在碰撞前可通过调整自身姿态来规避部分损伤的策略,以提高乘员在自动驾驶汽车中的碰撞安全性.
Simulation experiments for the passenger injuries with different sitting positions in autonomous vehicle collisions
Frontal crash simulation experiments were made with a comparative analysis of the kinematics and loads of its occupants,to investigate the crash safety of occupants in autonomous vehicles with different sitting positions such as representative occupant attitudes(including variations in head,upper limbs and torso).The results show that in the frontal collision simulation experiment,the comprehensive injury risk of leaning passengers is higher than that of other postures.Compared to the conversational posture,the leaning posture resulted in a 45.5%increase in chest compression,more rib fractures,and a 48.8%increase in visceral organ strain.The left leaning posture significantly reduces the risk of injury,with a 49.1%decrease in head injury risk and a 14.4%decrease in chest injury risk.Therefore,the occupant injury can be reduced by adjusting the occupant posture before the vehicle collision,so as to improve the collision safety of autonomous vehicle.

autonomous vehiclesfrontal collisionsimulation experimentspassenger injury riskpassenger non-standard sitting posture

武和全、李羿辉、刘瑾、张申奥

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长沙理工大学 汽车与机械工程学院,长沙 410114,中国

长沙理工大学工程车辆安全性设计与可靠性技术湖南省重点实验室,长沙 410114,中国

自动驾驶汽车 正面碰撞 仿真实验 乘员损伤风险 乘员非标坐姿

国家自然科学基金资助项目国家自然科学基金资助项目长沙理工大学学位与研究生教育教学改革项目

52172399522115300542022-45

2024

汽车安全与节能学报
清华大学

汽车安全与节能学报

CSTPCD北大核心
影响因子:0.748
ISSN:1676-8484
年,卷(期):2024.15(4)