Examinations on Sound Design for Next Generation Vehicles

2015 Fiscal Year Final Research Report

• Project/Area Number: 25750003
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Design science
• Research Institution: Kyushu University (2015); Nagasaki University (2013-2014)
• Principal Investigator: Yamauchi Katsuya 九州大学, 芸術工学研究科(研究院), 准教授 (10380718)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 次世代自動車 / 走行音 / 接近通報音 / 交通騒音 / NVH / 電気自動車 / ハイブリッド自動車 / 主観評価

Outline of Final Research Achievements

To accumulate knowledge on sound design for next generation vehicles and for its related legislation design, we established following two main subjects: (1) understanding feasible sound design to make pedestrians easily realize the approaching vehicle, (2) understanding adequate sound design to achieve comfort and drivable experience. For the first subject, we conducted a series of psycho-acoustical experiments to examine the feasible sound level and frequency characteristics for the sound with wide range of subjects age. For the second subject, a series of experiments to examine the relationship between frequency shifting and accelerating impression with some audio-visual stimulation. Moreover, another subjective evaluation experiment using the driving simulator that was developed for this present project was conducted. The results were published in the journals, international conferences, and a related body of the UN/ECE vehicle regulation as well.

Free Research Field

音響学