Development of fatigue reduction technology based on mind and body characteristics when senior citizen drives LSV

在21^世纪，“公共汽车”作为旨在增加日常生活的舒适性和便利性的交通工具已经引起了人们的关注<st>。此外，近期以老年人为主要营销对象的“银车”的传播也较为显著。随着小型电动汽车的需求量逐年增加，高附加值产品的开发也在不断推进，本研究的目的是探讨主动座椅悬架应用于小型汽车时的有效性及其实际应用中存在的问题。针对单座电动汽车，设计并制造了一种安装方便的小型主动座椅悬架。在实际行驶试验中，准备了用硬质橡胶模拟实际路面的凹凸度的试验道路，对行驶时座椅面的上下振动的基本控制性能进行了检查，但电动汽车行驶时的乘坐舒适性的评价一直依赖于驾驶员的主观判断。因此，有必要根据物理值评估主观判断与客观判断的相关性，即，震动通过“成对比较法”主观评价的乘坐舒适性等级与座椅表面的实测加速度进行了比较。结果表明，主观判断与物理量之间具有良好的相关性。

The "community car" has been attracting attention as a transportation vehicle aimed at increasing the comfort of and convenience of daily life in the 21^<st> century. In addition, the spread of "silver vehicles," marketed mainly for elderly people, has been notable recently. It is expected that the demand for small electric automobiles will increase yearly, and the development of increasingly value-added products is expected.The purpose of this study is to examine the effectiveness of active seat suspension when it is applied to small cars and the problems associated with its practical use. A small active seat suspension, which is easy to install, was designed and manufactured for one-seater electric automobiles. In an actual driving test, a test road in which the concavity and convexity of an actual road surface were simulated using hard rubber was prepared and the basic control performance of vertical vibrations of the seat surface during driving was examined.However, the evaluation of ride comfort during the electric vehicle running has depended on subjective judgement by drivers. Thus, it is necessary to evaluate the correlation of subjective judgement with objective judgement according to physical values, i.e., vibrations. Ride comfort ratings evaluated subjectively by the "Paired Comparison Method" were compared with the measured acceleration of the seat surface. As a result, a good correlation between the subjective judgement and the physical values was verified.