Title:
ACTIVE VIBRATION NOISE SUPPRESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/002933
Kind Code:
A1
Abstract:
The present invention provides a highly robust active vibration noise suppression device that does not identify a secondary transfer function when not performing adaptive control.
A first control unit (110) uses a first adaptive algorithm of the direct method, and generates a control signal (uk) by means of the first adaptive algorithm. A storage unit (140) stores an equivalent value (Gh), for a quadratic transfer function (G), adaptively updated as an adaptive filter (K) by the first control unit (110). A second control unit (130) regards the equivalent value (Gh), for the quadratic transfer function (G), stored by the storage unit (140) as a feed forward coefficient, and uses a second adaptive algorithm that updates as an adaptive filter a filter coefficient (C2) for the control signal (uk) on the basis of the feed forward coefficient. Next the second control unit (130) generates the control signal (uk) by using the second adaptive algorithm when the control signal (uk) is not generated by means of the first control unit (110).
Inventors:
IWAMOTO HIROSHI (JP)
HASEGAWA KOUICHI (JP)
HASEGAWA KOUICHI (JP)
Application Number:
PCT/JP2013/067203
Publication Date:
January 03, 2014
Filing Date:
June 24, 2013
Export Citation:
Assignee:
TOKAI RUBBER IND LTD (JP)
International Classes:
G05D19/02; B60G17/0165; B60R11/02; G10K11/178; B62D25/08
Domestic Patent References:
| WO2012157577A1 | 2012-11-22 |
Foreign References:
| JP2008216375A | 2008-09-18 | |||
| JP2011121534A | 2011-06-23 | |||
| JP2012247738A | 2012-12-13 | |||
| JP4742226B2 | 2011-08-10 |
Other References:
YUSUKE OTA: "New Direct Adaptive Approach to Multichannel Active Noise Control", THE TRANSACTIONS OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. J87-A, no. 10, October 2004 (2004-10-01), pages 1261 - 1271
TOSHIKAZU KONO: "Adaptive Active Noise Control Algorithm without Explicit Identification of Secondary Path Dynamics", THE TRANSACTIONS OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. J86-A, no. 1, January 2003 (2003-01-01), pages 9 - 18
TOSHIKAZU KONO: "Adaptive Active Noise Control Algorithm without Explicit Identification of Secondary Path Dynamics", THE TRANSACTIONS OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. J86-A, no. 1, January 2003 (2003-01-01), pages 9 - 18
Attorney, Agent or Firm:
KYORITSU INTERNATIONAL (JP)
Patent business corporation Joint establishment (JP)
Patent business corporation Joint establishment (JP)
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