Effect of design changes of automobile cabin in the virtual reality space on visual spaciousness
Effect of design changes of automobile cabin in the virtual reality space on visual spaciousness
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DOI：
10.1299/transjsme.19-00241
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Takanori Chihara;J. Sakamoto
中科院分区：
文献类型：
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作者：
Takanori Chihara;J. Sakamoto
提高车内空间利用率是提高汽车价值的重要因素之一。然而，用实际的汽车模型进行实验需要过多的时间和成本。本研究旨在探讨利用虚拟实境技术进行汽车座舱空间感评估的可行性。12名学生（6男6女）参加了这项研究。参与者评估了具有不同车顶高度R（0，+50和+100 mm）和挡风玻璃深度W（0，+100和+200 mm）的汽车CG模型的视觉宽敞度。提供了VR空间中驾驶员座椅的视图，并采用7分Likert量表测量主观空间充足性。结果表明，平均空间充足率随车顶高度和挡风玻璃厚度的增加而增加，但当R = +100 mm时，平均空间充足率与挡风玻璃厚度无关;车顶高度对空间充足率的影响显著，挡风玻璃厚度对空间充足率的影响不显著。主观得分的概率与两个因素之间的关系（即，车顶高度和挡风玻璃深度）通过将有序逻辑回归应用于测量数据来制定。此外，有序逻辑回归的结果进行了比较，在以前的研究中，空间充足性是在真实的空间使用实际的汽车模型进行测量。本研究的有序逻辑回归分析结果与前人的研究结果基本一致。
Improving space sufficiency of cabin is one of significant factor in enhancing the value of automobiles. However, experiment with actual automobile mock-up requires excessive time and cost. Our aim of this study was to investigate the feasibility of spaciousness evaluation of automobile cabin by using virtual reality (VR). Twelve students (6 males and 6 females) participated in this study. The participants evaluated the visual spaciousness of automobile CG models with different roof heights R (0, +50, and +100 mm) and windshield depth W (0, +100, and +200 mm). The views from driver seat in the VR space were provided, and the subjective space sufficiency was measured in a 7-point Likert scale. The result showed that the average space sufficiency increased with the increase of the roof height and windshield depth, whereas it was almost constant irrespective of the windshield depth when R = +100 mm. The effect of roof height was statistically significant, whereas that of windshield was not significant. The relationship between the probability of the subjective score and the two factors (i.e., roof height and windshield depth) was formulated by applying the ordered logistic regression to the measured data. In addition, the results of ordered logistic regression were compared with a previous study in which the space sufficiency was measured in real space using an actual automobile mock-up. The results of the ordered logistic regression of this study roughly agreed with the previous study.