University of Salerno - Fisciano (SA), Italy.
Work. 2021;68(s1):S129-S138. doi: 10.3233/WOR-208012.
Nowadays, the ergonomic study of the driving position is a critical aspect of automotive design. Indeed, due to the rising needs on the market, one focus for car industries is to improve the perceived comfort related to the cars' interior. Driving a car for a prolonged time could cause complaints in some body-regions, especially in the lumbar-sacral area. Thus, special lumbar-sacral supports for driver seat has been proposed for reducing this kind of complaints.
Development of two virtual and physical models of lumbar-sacral support for improving both the lumbar/sacral and overall perceived comfort while driving.
Two prototypes of lumbar/sacral support have been realized: the first one was integrated into the seat, and the second one was shaped as a removable pillow (removable support). Fifty participants were asked to rate the perceived comfort in lab tests performed on a seating-buck by comparing three configurations (5 min each): a standard seat, seat with the removable support, seat with integrated support. Subjective data (by questionnaires) and objective data (interface pressure between backrest and driver) have been acquired and statistically processed. In addition, real driving tests have been performed to test the actual performance of the removable support in term of perceived comfort comparing it with the standard seat.
Statistical correlations between subjective and objective data showed interesting results in comfort improvement through the adopted solutions. Real driving tests showed an improvement in comfort perception with the lumbar-sacral support towards the standard seat.
Thanks to the virtual prototyping and the application of previous knowledge, coming from literature and experience, a solution for improving the overall comfort and reduce the lumbar/sacral pain while driving has been developed, tested, and assessed.
如今，驾驶位置的人体工程学研究是汽车设计的一个关键方面。事实上，由于市场需求的不断增长，汽车行业的一个重点是提高与汽车内部相关的感知舒适度。长时间驾驶汽车会导致一些身体部位的不适，尤其是在腰部和骶部区域。因此，已经提出了特殊的腰部和骶部座椅支撑，以减少这种不适。
开发两种虚拟和物理模型的腰部和骶部支撑，以提高驾驶时腰部/骶部和整体感知舒适度。
实现了两种腰部/骶部支撑的原型：第一种集成到座椅中，第二种形状为可移动枕头（可移动支撑）。五十名参与者被要求在座椅试验台上进行实验室测试，通过比较三种配置（每种配置 5 分钟）来评估感知舒适度：标准座椅、带可移动支撑的座椅、带集成支撑的座椅。采集了主观数据（通过问卷调查）和客观数据（靠背和驾驶员之间的界面压力），并进行了统计处理。此外，还进行了实际驾驶测试，以测试可移动支撑在感知舒适度方面的实际性能，将其与标准座椅进行比较。
主观数据和客观数据之间的统计相关性显示了通过采用的解决方案改善舒适度的有趣结果。实际驾驶测试表明，腰部和骶部支撑可改善驾驶时的舒适度感知，优于标准座椅。
通过虚拟原型设计和应用来自文献和经验的先前知识，开发、测试和评估了一种可提高整体舒适度并减轻驾驶时腰部/骶部疼痛的解决方案。
