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Patent Searching and Data


Title:
ACTIVE VIBRATION NOISE CONTROLLER
Document Type and Number:
Japanese Patent JP3535533
Kind Code:
B2
Abstract:

PURPOSE: To provide the active vibration noise controller which lightens the load on a battery at the time of a low-speed travel of a vehicle and suppresses the generation of an unnecessary canceling sound irrelevant to a road noise.
CONSTITUTION: When a vehicle speed detected by a vehicle speed sensor 5 decreases below a specific speed, an ANC control circuit 4 sends a control output for decreasing the amplitude of a reference signal x(n), outputted from an A/D converter 2, to 0 to an amplitude adjusting circuit 3 and then the reference signal is not inputted to the adaptive control circuit 6, so that active vibration control is stopped.


Inventors:
Nakamura, Mitsutake
Yamashita, Takeshi
Sudo, Akira
Application Number:
JP1992000329993
Publication Date:
March 19, 2004
Filing Date:
November 16, 1992
Export Citation:
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Assignee:
HONDA MOTOR CO LTD
International Classes:
F01N1/00; G10K11/16; G10K11/178; (IPC1-7): G10K11/178; F01N1/00
Attorney, Agent or Firm:
渡部 敏彦