Department of Engineering, Texas A&M University - Corpus Christi, Corpus Christi, Texas.
Biosciences Group, University of Michigan Transportation Research Institute, Ann Arbor, Michigan.
Traffic Inj Prev. 2020;21(1):98-101. doi: 10.1080/15389588.2019.1710139. Epub 2020 Jan 30.
The Hybrid-III anthropometric test devices (ATDs) are widely used by the automotive industry to evaluate restraint system performance in standardized vehicle crash tests. The relationship between the belt fit measured for people in driving posture and the belt fit obtained with ATDs has not been reported in the literature. The present study compares lap and shoulder belt fit data from ATDs and to a statistical estimate for drivers using age, stature, and BMI. The lap and shoulder belt fits were measured for small-female and midsize-male Hybrid-III ATDs in a laboratory mockup of a midsize sedan. A range of lower and upper belt anchorage locations were used. The ATD belt fit data were compared with predictions from a regression model developed by data from 97 men and women measured in the same driving package conditions. Humans were free to position the belt comfortably, even if the position was not optimal. The measurements of the ATD belt fit were obtained and compared to the regression estimate for a driver using age, stature, and BMI as predictors. For the small female, the ATD's lap belt was placed 46 mm further forward and 12 mm lower relative to the pelvis than the regression model estimates for a driver's lap belt placement. For the midsize male, the lap portion of the belt was placed 13 mm more rearward and 33 mm lower on the physical ATD than the regression model estimates for a similarly sized driver. The shoulder belt was placed an average of 66 mm more inboard and 11 mm more outboard on the small-female and midsize-male physical ATDs, respectively, compared with regression model estimates for drivers. Differences in the lap and shoulder belt fits were quantified between the physical ATDs and regression predictions for similarly sized humans in driving postures. The consequences of these differences should be investigated to help increase understanding of the relationship between belt fit and belt performance.
混合 III 人体模型测试设备（ATD）被汽车行业广泛用于评估约束系统在标准化车辆碰撞测试中的性能。在文献中，没有报道过驾驶姿势下测量的安全带贴合度与 ATD 获得的安全带贴合度之间的关系。本研究比较了 ATD 和使用年龄、身高和 BMI 对驾驶员进行的统计估计的腿带和肩带贴合度数据。在中大型轿车的实验室模型中，测量了小女性和中男性混合 III ATD 的腿带和肩带贴合度。使用了一系列较低和较高的安全带锚固位置。将 ATD 安全带贴合度数据与通过在相同驾驶套件条件下测量的 97 名男性和女性的数据开发的回归模型的预测进行了比较。人类可以自由地舒适地定位安全带，即使位置不是最佳的。测量了 ATD 安全带贴合度，并与使用年龄、身高和 BMI 作为预测因子的驾驶员回归估计值进行了比较。对于小女性，ATD 的腿带相对于驾驶员腿带放置位置的回归模型估计值向前放置了 46mm，向下放置了 12mm。对于中男性，与回归模型估计值相比，物理 ATD 上的安全带部分向后放置了 13mm，向下放置了 33mm。与驾驶员的回归模型估计值相比，小女性和中男性物理 ATD 上的肩带分别向内放置了平均 66mm，向外放置了 11mm。在驾驶姿势下，物理 ATD 和回归预测的小女性和中男性之间的腿带和肩带贴合度存在差异。应研究这些差异的后果，以帮助增加对安全带贴合度和安全带性能之间关系的理解。
