Abstract

Active Sound Control technology for electrified vehicles was developed in order to realize vehicle interior sound levels matching the seamless acceleration that is characteristic of driving under electric motor power. This technology takes the fundamental approach of generating sound based on the conceptual approach of Shepard tones and synchronizing it with the vehicle velocity. The main tones generated according to the theory of Shepard tones are superimposed with multiple sub-tones at preset frequency ratios. This approach can produce acceleration sounds with further increased freedom. An acceleration sound that differs from engine sound and has sounds matched to the electrified vehicle has been realized by means of this technology.

References

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Author (organization or company)

• Xun WANG（Innovative Research Excellence）
• Takuma MAESAKA（Innovative Research Excellence）
• Toshio INOUE（Innovative Research Excellence）

Publication Information

Article of Honda R&D Technical Review Vol.33 No.1 (38 - 45)

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