多个可转换式儿童座椅系统和儿科乘客在斜冲击中的相互作用
Jalaj Maheshwari1, Declan A Patton1
1Center for Injury Research and Prevention, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
Traffic injury prevention
|November 1, 2024
概括
汽车座椅在斜撞击时的乘客互动增加了受伤的风险,特别是对后侧乘客来说. 调整汽车座椅的位置和功能,如中央扶手,可以减轻这些风险.
科学领域:
- 汽车安全工程 汽车安全工程
- 生物力学 生物力学
- 预防儿童伤害的预防
背景情况:
- 儿童座椅系统 (CRS) 对于车辆中的儿科安全至关重要.
- 了解CRS在碰撞事件中的乘客互动对于提高安全标准至关重要.
- 斜冲击对CRS性能和乘客保护构成独特的挑战.
研究的目的:
- 评估儿科人员在多个向后面 (RF) 和向前面 (FF) 的儿童安全座椅系统中在斜撞击时的运动反应.
- 评估CRS宽度和座位位置 (前侧与近侧) 如何影响乘客动力学和伤害指标.
- 调查中心扶手对乘客互动和安全的影响.
主要方法:
- 在一个紧的车车型中使用了Q3和Q1.5人类测试设备 (ATD) 在标准和苗条的CRS中.
- 使用FMVSS 213脉冲模拟60°斜撞击,测试各种CRS配置和座位.
- 重现了最高风险的场景,中央扶手被降低以评估其影响.
主要成果:
- 背面坐着的ATD的头部经常与相邻的CRS联系,增加了伤害指标和负载.
- 在RF配置中的Q3显示出较高的头部伤害标准 (HIC15) 和加速,而不是FF.
- 降低中央扶手,在风险最高的场景中,减少了头部运动指标.
结论:
- 前侧乘客与近侧CRS的互动显著增加了受伤风险.
- CRS宽度和座位配置 (RF与FF) 影响乘客动力学和受伤的可能性.
- 车辆内部设计元素,如中央扶手,可以影响碰撞安全结果.
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