Abstract

A method of seat design that makes it possible to control resonance frequencies of the seat in order to reduce seat vibration when the vehicle is idling and when it is in motion has been proposed. The research discussed in this paper made it possible to reduce vibration by controlling the resonance frequencies by replacing the structures of the seat-mounting unit with floating structures using rubber bushings. It was also shown that partly replacing the mounting unit with floating structures makes it possible to control the resonance frequencies of the entire seat. Compared to a design that replaces the entire seat-mounting unit with floating structures, this design makes it possible to optimally position floating structures for each type of seat. The issue of balancing vibration reduction with strength and durability and crash safety performance due to fitting the floating structures to the seat-mounting unit was addressed using stopper structures optimized for each type of input. The use of the floating structures in an actual vehicle realized a lighter-weight seat configuration than the use of conventional vibration countermeasures.

References

1. (1) Matsuoka, H., Mikasa, T., Nemoto, H.: Development of Active Control Engine Mount, JSAE Annual Congress Proceedings, No. 84-03, p. 5-8 (2003)
2. (2) Tamaki, R., Konishi, K., Murata, M.: A study of harshness improvement by seat based on human sensitivity, JSAE Annual Congress Proceedings, No. 138-13, p. 1-5 (2013) (in Japanese)
3. (3) Kato, K., Kitazaki, S., Tobata, H.: Prediction of Seat Vibration with a Seated Human Subject Using a Substructure Synthesis Method, SAE Technical Paper, 2004-01-0371 (2004)

Author (organization or company)

• Kengo YABE（Automobile R&D Center）
• Toru INAGAKI（Automobile R&D Center）
• Takashi KONDO（Automobile R&D Center）

Publication Information

Article of Honda R&D Technical Review Vol.26 No.2 (151 - 155)

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Citation Information