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Integrated Active Noise Control System for Low-frequency Noise in Automobiles

Article of Honda R&D Technical Review Vol.23 No.2

Summary

Honda has developed two Active Noise Control (ANC) technologies, and has employed them as standard in a large number of vehicles. One of these technologies is a drumming reduction technology that employs feedback control, and the other is an engine booming noise control technology that employs feed forward control, which uses the engine speed signal as a reference signal. These technologies have previously not been combined to produce an integrated system due to issues of mutual interference between the control systems and stability in the feedback control. The research discussed in this paper created a new drumming control technology that resolved these issues, and developed an integrated ANC system. The new ANC system developed in the research has been employed in a number of vehicles.

Reference

(1) Sano, H., Inoue, T., Takahashi, A., Yamashita, T.: Development of Active Control System for Low-frequency Road Noise Combined with Audio System, Honda R&D Technical Review, Vol. 12, No. 2, p. 71-80
(2) Sano, H., Inoue, T., Takahashi, A., Terai, K., Nakamura, Y.: Active control system for low-frequency road noise combined with an audio system, IEEE Trans. on Speech and Audio Processing, 9 (7), 755-763 (2001)
(3) Inoue, T., Takahashi, A., Minowa, S., Sano, H.: Development of Active Noise Control System for Engine Booming Noise, Honda R&D Technical Review, Vol. 15, No. 2, p. 201-208
(4) Inoue, T., Takahashi, A., Sano, H.: NV countermeasure technology for a cylinder-on-demand engine – Development of active booming noise control system applying adaptive notch filter, Soc. of Automotive Engineers Technical Paper, 04ANNUAL-976 (2004)
(5) Widrow, B., Steams, S. D.: Adaptive Signal Processing, Prentice-Hall, Englewood Cliffs, New Jersey (1985)
(6) Kobayashi, Y., Inoue, T., Takahashi, A., Active sound control in automobiles, Proc. INTER-NOISE 2008, in08_0791 (2008)

Author (organization or company)

Toshio INOUE(Automobile R&D Center)、Akira TAKAHASHI(Automobile R&D Center)、Kosuke SAKAMOTO(Automobile R&D Center)、Yasunori KOBAYASHI(Automobile R&D Center)

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