JP4378391B2 - 車両用能動型騒音制御システム - Google Patents
車両用能動型騒音制御システム Download PDFInfo
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- JP4378391B2 JP4378391B2 JP2007085809A JP2007085809A JP4378391B2 JP 4378391 B2 JP4378391 B2 JP 4378391B2 JP 2007085809 A JP2007085809 A JP 2007085809A JP 2007085809 A JP2007085809 A JP 2007085809A JP 4378391 B2 JP4378391 B2 JP 4378391B2
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- 238000001514 detection method Methods 0.000 claims description 49
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 24
- 238000012546 transfer Methods 0.000 claims description 23
- 230000003044 adaptive effect Effects 0.000 claims description 17
- 238000012937 correction Methods 0.000 claims description 10
- 230000002194 synthesizing effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 35
- 238000004364 calculation method Methods 0.000 description 24
- 238000005070 sampling Methods 0.000 description 24
- 238000000034 method Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 18
- 230000000875 corresponding effect Effects 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17853—Methods, e.g. algorithms; Devices of the filter
- G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
- G10K11/17821—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
- G10K11/17823—Reference signals, e.g. ambient acoustic environment
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17857—Geometric disposition, e.g. placement of microphones
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17879—General system configurations using both a reference signal and an error signal
- G10K11/17883—General system configurations using both a reference signal and an error signal the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/128—Vehicles
- G10K2210/1282—Automobiles
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Description
fp=fc×α×(Fr/Fn)
×(Br/Bn)×(Tr/Tn) (1)
アドレス間隔:is=N×fp´×t=3600×fp´×(1/3600)
=fp´ (2)
i(n)=i(n−1)+is=i(n−1)+fp´ (3)
i(n)=i(n−1)+fp´−3600 (4)
i´(n)=i(n)+N/4=i(n)+900 (5)
i´(n)=i(n)+900−3600 (6)
fp=fe×(Hr/Hn)×(Fr/Fn)
×(Br/Bn)×(Tr/Tn) (7)
ft=fe×(Hr/Hn)×(Fr/Fn) (8)
ft=fc×α×(Fr/Fn) (9)
14…車室 22、28…マイクロフォン
30、32…スピーカ 34…電子制御装置
36…エンジン 40…車速センサ
42…クラッチ 46、50…変速ギヤ
48…カウンタシャフト 52、56…ファイナルギヤ
58、80…ドライブシャフト 60、62、82、84…タイヤ
64、66…ベベルギヤ 70、72…トランスファギヤ
76…プロペラシャフト 102、104、106…制御回路部
108、110、160…加算器 120、150、180…周波数検出回路
126、128、156、158、186、188…適応型フィルタ
138、146、168、176、198、206…フィルタ係数更新手段
250…比較器 252、254、256…可変利得増幅器
260…比較調整手段 300…スイッチ
302…スイッチ制御部 312…アドレスシフト部
314…波形データテーブル 316、334、364…基準信号生成手段
320…余弦波発生回路 322…正弦波発生回路
324、340、370…参照信号生成手段
326、328…補正部 400…エンジン回転センサ
402…シフトレバー 404…シフトレバー操作検出手段
406…クラッチペダル 408…クラッチ接続検出手段
410…AT制御装置 500…信号伝達特性測定装置
Claims (2)
- 車両の駆動系回転体から発生する駆動系回転体振動騒音の周波数に基づいて、前記駆動系回転体振動騒音に起因した車室内の駆動系騒音を相殺するための第1制御信号を生成する第1能動型騒音制御装置と、
前記車両のエンジンから発生するエンジン振動騒音の周波数に基づいて、前記エンジン振動騒音に起因した前記車室内のエンジン騒音を相殺するための第2制御信号を生成する第2能動型騒音制御装置と、
前記第1制御信号と前記第2制御信号とを合成して出力する信号合成手段と、
前記信号合成手段により合成された前記第1制御信号及び前記第2制御信号を相殺音として前記車室内に出力する音出力手段と、
前記第1制御信号の第1制御周波数と前記第2制御信号の第2制御周波数とを比較して、前記各制御周波数が同一又は近接する場合に、いずれか一方の制御信号の前記信号合成手段への出力を停止し、又は、いずれか一方の制御信号の出力レベルを変化させる比較調整手段と、
を有する
ことを特徴とする車両用能動型騒音制御システム。 - 請求項1記載の車両用能動型騒音制御システムにおいて、
該システムは、前記駆動系騒音及び前記エンジン騒音と前記相殺音との相殺誤差音を検出し誤差信号として出力する誤差信号検出手段をさらに有し、
前記第1能動型騒音制御装置は、
前記駆動系回転体振動騒音の周波数に基づいて、前記第1制御周波数の第1基準信号を生成する第1基準信号生成手段と、
前記第1基準信号に基づいて前記第1制御信号を生成する第1適応型フィルタと、
前記第1制御周波数に対応した前記音出力手段から前記誤差信号検出手段までの伝達特性を表わす補正値に基づいて前記第1基準信号を補正し第1参照信号として出力する第1参照信号生成手段と、
前記誤差信号と前記第1参照信号とに基づいて、前記誤差信号が最小となるように前記第1適応型フィルタの第1フィルタ係数を逐次更新する第1フィルタ係数更新手段と、
を備え、
前記第2能動型騒音制御装置は、
前記エンジン振動騒音の周波数に基づいて、前記第2制御周波数の第2基準信号を生成する第2基準信号生成手段と、
前記第2基準信号に基づいて前記第2制御信号を生成する第2適応型フィルタと、
前記第2制御周波数に対応した前記音出力手段から前記誤差信号検出手段までの伝達特性を表わす補正値に基づいて前記第2基準信号を補正し第2参照信号として出力する第2参照信号生成手段と、
前記誤差信号と前記第2参照信号とに基づいて、前記誤差信号が最小となるように前記第2適応型フィルタの第2フィルタ係数を逐次更新する第2フィルタ係数更新手段と、
を備える
ことを特徴とする車両用能動型騒音制御システム。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007085809A JP4378391B2 (ja) | 2007-03-28 | 2007-03-28 | 車両用能動型騒音制御システム |
US12/056,499 US8111834B2 (en) | 2007-03-28 | 2008-03-27 | Vehicular active noise control system |
DE602008000250T DE602008000250D1 (de) | 2007-03-28 | 2008-03-28 | Aktives Geräuschverminderungssystem für Fahrzeuge |
EP08006026A EP1975922B1 (en) | 2007-03-28 | 2008-03-28 | Vehicular active noise control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007085809A JP4378391B2 (ja) | 2007-03-28 | 2007-03-28 | 車両用能動型騒音制御システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008239098A JP2008239098A (ja) | 2008-10-09 |
JP4378391B2 true JP4378391B2 (ja) | 2009-12-02 |
Family
ID=39581866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007085809A Expired - Fee Related JP4378391B2 (ja) | 2007-03-28 | 2007-03-28 | 車両用能動型騒音制御システム |
Country Status (4)
Country | Link |
---|---|
US (1) | US8111834B2 (ja) |
EP (1) | EP1975922B1 (ja) |
JP (1) | JP4378391B2 (ja) |
DE (1) | DE602008000250D1 (ja) |
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JP4174061B2 (ja) * | 2006-03-23 | 2008-10-29 | 本田技研工業株式会社 | ハイブリッド車両の能動型制振制御装置 |
JP2007264485A (ja) * | 2006-03-29 | 2007-10-11 | Honda Motor Co Ltd | 車両用能動音響制御装置 |
JP2007328219A (ja) * | 2006-06-09 | 2007-12-20 | Matsushita Electric Ind Co Ltd | 能動型騒音制御装置 |
JP4322916B2 (ja) * | 2006-12-26 | 2009-09-02 | 本田技研工業株式会社 | 能動型振動騒音制御装置 |
JP5189307B2 (ja) * | 2007-03-30 | 2013-04-24 | 本田技研工業株式会社 | 能動型騒音制御装置 |
JP2008247221A (ja) * | 2007-03-30 | 2008-10-16 | Honda Motor Co Ltd | 能動型騒音制御装置 |
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US20080292110A1 (en) | 2008-11-27 |
US8111834B2 (en) | 2012-02-07 |
DE602008000250D1 (de) | 2009-12-17 |
JP2008239098A (ja) | 2008-10-09 |
EP1975922B1 (en) | 2009-11-04 |
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