インパネ触感の摩擦計測，および指表面可視化による高触感要件の特定

山岸　和輝・西城戸　蘭・髙橋　巧朋（マツダ）

内装材などタッチポイントの触感は個人差が大きく，設計要件は熟練者の経験則に依存し定量化が困難である．本研究では被験者数十名に対し，触動作中の摩擦計測を行い，一部の指表面では可視化を行った．これらの結果から，摩擦現象解明と統計的評価により，感覚を物理量に紐づけを行ったので，この内容を報告する．

Pre-verification of the development of the deco bezel specification steering wheel through analysis

Dongmin Kim (KOMOS)

When manufacturing automotive steering wheels, a high defect rate occurs during the manual leather stitching process. Therefore, we developed a steering wheel with a deco bezel specification that eliminates this manual leather stitching process to reduce the defect rate and allows for the application of a high-end design to the front of the steering wheel. Accordingly, this study pre-verifies the issues encountered during the development of the deco bezel specification steering wheel through analysis.

A Study on Partition Layouts for Configuring Independent Spaces in Vehicles

Jiseob Park (Hyundai Motor)･Jaemoon Jung (SeoYon E-Hwa)

This study proposes a partition layout for creating independent spaces in autonomous vehicles. Based on aircraft full-cover partitions, the design was redefined to suit limited vehicle interiors. A console-type partition was developed and evaluated through usability testing. The optimized design integrates a variable armrest, cup holder, smartphone mount, and PDLC film. The results verify its feasibility for improving privacy, convenience, and spatial independence in autonomous vehicle interiors.

The Development of Active Air Skirt for reducing Drag Force

Jinyoung Yoon･Soobok Kim (Hyundai Motor)･Jaesup Byun･Jangho Kim (hyundai Mobis)

There are various active air flaps, active rear spoilers, and active deflectors, which are various active aerodynamic devices to improve the aerodynamic performance of electric vehicle. This technology is an active air skirt that improves the air resistance of the front wheel tire by controlling the air flow in the front lower part and improves the air flow to the rear, and is deployed/stored according to the vehicle speed. As a result of conducting a wind tunnel test by applying it to a real vehicle, the effective CD (coefficient of Drag) value was confirmed, and mass production feasibility was confirmed through robust design of the actuator and operating mechanism.