车辆转向策略对行人头部伤害严重程度的影响。

IF 3.4 3区 医学 Q1 ENGINEERING, MULTIDISCIPLINARY Biomimetics Pub Date : 2024-09-30 DOI:10.3390/biomimetics9100593
Danqi Wang, Wengang Deng, Lintao Wu, Li Xin, Lizhe Xie, Honghao Zhang
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引用次数: 0

摘要

针对行人突然违规横穿马路的情况,智能车辆会综合考虑事故区域的路况、交通规则以及周围车辆的行驶状态等因素,做出紧急避让决策。因此,建立了行人与轿车、运动型多用途车(SUV)和多功能车(MPV)三种车辆的碰撞模拟模型,研究车辆类型、车辆转向角、碰撞速度、碰撞位置和行人方向对行人头部伤害的影响。结果表明,头部伤害标准值(HIC)随着碰撞速度的增加而增加。在转向角方面,当车辆的转向方向与行人的位置一致时,行人在车辆引擎盖上停留的时间较长,碰撞后与车辆一起移动。这就有效地减少了对行人头部的伤害。然而,当车辆的转向方向与行人的位置相反时,行人会直接与地面相撞,从而导致更高的头部伤害。其中,MPV 造成的伤害最严重,其次是 SUV,轿车受到的影响最小。总体而言,智能汽车与自动紧急转向(AES)措施相结合,在减少行人与车辆突发碰撞时对行人头部造成的伤害方面具有很大的潜力。未来,需要努力建立优化的转向策略,优化处理转向无效甚至有害的情况。
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Impact of Vehicle Steering Strategy on the Severity of Pedestrian Head Injury.

In response to the sudden violation of pedestrians crossing the road, intelligent vehicles take into account factors such as the road conditions in the accident zone, traffic rules, and surrounding vehicles' driving status to make emergency evasive decisions. Thus, the collision simulation models for pedestrians and three types of vehicles, i.e., sedans, Sport Utility Vehicles (SUVs), and Multi-Purpose Vehicle (MPVs), are built to investigate the impact of vehicle types, vehicle steering angles, collision speeds, collision positions, and pedestrian orientations on head injuries of pedestrians. The results indicate that the Head Injury Criterion (HIC) value of the head increases with the increase in collision speed. Regarding the steering angles, when a vehicle's steering direction aligns with a pedestrian's position, the pedestrian remains on top of the vehicle's hood for a longer period and moves together with the vehicle after the collision. This effectively reduces head injuries to pedestrians. However, when the vehicle's steering direction is opposite to the pedestrian's position, the pedestrian directly collides with the ground, resulting in higher head injuries. Among them, MPVs cause the most severe injuries, followed by SUVs, and sedans have the least impact. Overall, intelligent vehicles have great potential to reduce head injuries of pedestrians in the event of sudden pedestrian-vehicle collisions by combining with Automatic Emergency Steering (AES) measures. In the future, efforts need to be made to establish an optimized steering strategy and optimize the handling of situations where steering is ineffective or even harmful.

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来源期刊
Biomimetics
Biomimetics Biochemistry, Genetics and Molecular Biology-Biotechnology
CiteScore
3.50
自引率
11.10%
发文量
189
审稿时长
11 weeks
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