相关实验视频

Updated: Jul 23, 2025

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

Published on: September 21, 2017

驾驶员因车辆侧撞而受伤当使用自动应急车和活跃安全带时

Min Li¹, Daowen Zhang^1,2, Qi Liu¹

¹School of Automobile and Transportation, Xihua University, Chengdu 610039, China.

Sensors (Basel, Switzerland)

|July 14, 2023

概括

自动应急制动 (AEB) 在侧面碰撞中扎. 这项研究引入了主动安全带预紧张,与传统安全带相比,在不可避免的侧冲击中显著减少驾驶员伤害,高达22.05%.

科学领域:

汽车安全工程汽车安全工程
生物力学生物力学
适应性适应性适应性适应性

背景情况:

自动紧急制动 (AEB) 系统擅长缓解前后碰撞,但在防止侧撞方面面临挑战.
驾驶员在侧面碰撞中受伤仍然是一个重大问题,即使有先进的驾驶员辅助系统.

研究的目的:

调查AEB装备的车辆在不可避免的侧撞撞撞中减少驾驶员受伤的活性安全带预紧张的有效性.
确定主动安全带预紧张的最佳参数,以最大限度地减少驾驶员在各种侧冲击角度的伤害.

主要方法:

利用来自中国国家汽车事故深入调查系统的真实事故数据来定义副作用情景.
在HyperMesh.中开发和验证了车辆 (丰田Yaris) 的有限元模型,移动屏障和乘客扣留系统 (安全带,侧气囊,窗气囊).
进行了不同AEB强度 (高达0.7g) 和侧冲击角度 (90°,105°,120°) 的模拟,评估驾驶员失去位置和受伤的情况.
采用直角测试来确定主动安全带预紧张的最佳时间和力 (80N在0毫秒).

主要成果:

与传统安全带相比,主动安全带预紧张显示了加权伤害标准的显著降低.
在5.94% (90°),22.05% (105°) 和20.37% (120°) 的撞击角度观察到损伤减少.
在经过测试的场景中,在80N的即时 (0ms) 预压力被证明有效地减少了驾驶员的伤害.

结论:

积极的安全带预紧张是一种可行的策略,可以减轻不可避免的侧撞撞车祸中的驾驶员伤害,补充AEB系统.
确定了最佳预压缩参数,为车辆安全系统设计提供了有价值的数据.
这项研究为在配备AEB的车辆中设置主动安全带的碰撞参数提供了参考.

关键词:

在AEBEB中,AEB是AEB.积极的安全带安全带.驾驶员受伤导致的伤害智能汽车是一种智能汽车.侧系统的侧系统

更多相关视频

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Published on: December 18, 2020

A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials

A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials

Published on: May 18, 2015

相关概念视频

Impulse

Impulse

According to Newton’s second law of motion, the rate of change of the momentum of an object is the net external force acting on it. The total change in momentum between two timepoints thus depends on both the external force acting on it and the time over which it acts. Describing this mathematically, the total change of an object’s motion is proportional to the force vector and the time over which it is applied. This product is called impulse.
Additionally, it can be shown that the...

Elastic Collisions: Case Study

Elastic Collisions: Case Study

Elastic collision of a system demands conservation of both momentum and kinetic energy. To solve problems involving one-dimensional elastic collisions between two objects, the equations for conservation of momentum and conservation of internal kinetic energy can be used. For the two objects, the sum of momentum before the collision equals the total momentum after the collision. An elastic collision conserves internal kinetic energy, and so the sum of kinetic energies before the collision equals...