Effect of Acceleration and Deceleration Characteristics of Electric Vehicles on Pedal Operation of Elderly Drivers

Yusuke Hayashida (Tokyo University of Agriculture and Technology)･Tatsuya Iizuka･Akihiro Abe･Yoko Kato･Michiaki Sekine (NALTEC)

Electric vehicles exhibit larger acceleration and deceleration responses to accelerator pedal inputs than gasoline-engine vehicles. Therefore, elderly drivers accustomed to gasoline-engine vehicles may have difficulty operating them properly. In this research, a driving simulator was used to recreate a scenario in which a vehicle follows a preceding vehicle, and the pedal input and vehicle behavior of elderly drivers operating electric vehicles were evaluated using various evaluation indicators.

Regional Differences in Collision Avoidance Emergency Braking Frequency Measured by Dashcams of Elderly Drivers
-Study on Driver Characteristics for Delaying Driving Cessation (47)-

Takashi Yonekawa･Hirofumi Aoki (Institute of Innovation for Future Society Nagoya University)･Kan Shimazaki (Kindai University)･Masae Kojima･Rin Itou･Akio Hirano･Sueharu Nagiri (nstitute of Innovation for Future Society Nagoya University)

The previous report confirmed a correlation between collision avoidance emergency braking frequency per driving distance measured by elderly drivers' dashcams and their safe driving ability. This report compares collision avoidance emergency braking frequencies in the Nagoya and Tsukuba regions, which have different driving environments. Since the frequency was lower in the Tsukuba region, we propose a method for evaluation using collision avoidance emergency braking frequency adjusted for driving speed.

Estimation of Driving Style Based on Eye Tracking During Autonomous Driving

Yuki Mekata (Kanagawa University)

Personalizing the controls of a driving assistance system is expected to encourage drivers to use the system appropriately. This study attempted to estimate drivers' style in their braking operations based on eye tracking data corrected during autonomous driving using a driving simulator. The realization of such estimations is expected to expand the feasibility of personalization in driving assistance systems.

Driving Simulator Log Analysis in Rehabilitation for Resuming Driving

Chise Kobayashi (Kindai University)･Ryunosuke Hashimoto (Kishigawa Rehabilitation Hospital)･Takeshi Kohama (Kindai University)

To establish objective criteria for assessing the feasibility of driving resumption in patients with brain injury, driving behavior was analyzed using log data obtained during rehabilitation using a driving simulator. We compared three groups: healthy individuals, those who resumed driving, and those who did not. The findings indicated differences in driving behavior among the groups during steering maneuvers when vehicles approached from the right side.

A study on ergonomic seat profile shape design and comfort verification for future mobility

CHUNKYU PARK･JONGHO LEE (Hyundai Motor)･HARIM JUNG (Yonsei University)

In this study, I examined the shape of slim seats or pad-less seats to maximize the interior space of future automobiles and minimize the decrease in seat comfort, and proposed a profile shape. The cushion and backrest was designed ergonomically and to verify the proposed design, seats were manufactured. I conducted qualitative and quantitative 30 users testing using a driving simulator and 8 users actual vehicle condition. The proposed seat demonstrated a statistically significant decrease in overall users comfort in both driving and resting postures, and statistical differences were also observed in the seat's average pressure distribution. This study is expected to be applicable not only to future mobility systems requiring slim seats, but also to public transportation, aircraft, and office chairs.

A Method for the Development of Seat Comfort Guides Considering Regional Characteristics

SUNWOO CHOI (Hyundai Motor)

This study aims to investigate anthropometric data, cultural conditions, and environmental factors in Brazil. Through on-site investigations and surveys of local inhabitants, the study seeks to develop a region-specific seat design methodology for Brazil. The research results, including a systematic approach to developing localized seat design strategies, are expected to be applicable in regions beyond Brazil, facilitating ergonomic enhancements in seat design that cater to cultural, environmental, and anthropometric specificity.