CA2095033A1 - Active Vibration Control System - Google Patents
Active Vibration Control SystemInfo
- Publication number
- CA2095033A1 CA2095033A1 CA2095033A CA2095033A CA2095033A1 CA 2095033 A1 CA2095033 A1 CA 2095033A1 CA 2095033 A CA2095033 A CA 2095033A CA 2095033 A CA2095033 A CA 2095033A CA 2095033 A1 CA2095033 A1 CA 2095033A1
- Authority
- CA
- Canada
- Prior art keywords
- signals
- vibration
- region
- control system
- vibration control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
Classifications
-
- 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
- G10K11/17813—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 acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms
- G10K11/17817—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 acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms between the output signals and the error signals, i.e. secondary path
-
- 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
- G10K11/1785—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
-
- 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
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3023—Estimation of noise, e.g. on error signals
- G10K2210/30232—Transfer functions, e.g. impulse response
-
- 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
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3045—Multiple acoustic inputs, single acoustic output
-
- 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
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3046—Multiple acoustic inputs, multiple acoustic outputs
-
- 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
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3055—Transfer function of the acoustic system
-
- 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
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3212—Actuator details, e.g. composition or microstructure
-
- 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
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3216—Cancellation means disposed in the vicinity of the source
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Vibration Prevention Devices (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
An active vibration control system in which an input sensor (2) generates first signals representative of a primary vibration field, actuators (1) are driven by second signals to produce a secondary vibration field, monitoring sensors (3) producing third signals are positioned in a first region (4) differing from a second region where vibration is to be controlled, a controller (5) is responsive to the first signals to generate second signals which reduce vibration in the second region, and the controller is adaptive with reference to the first and third signals to maintain reduced vibration in the second region.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9023459.2 | 1990-10-29 | ||
GB909023459A GB9023459D0 (en) | 1990-10-29 | 1990-10-29 | Active vibration control system |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2095033A1 true CA2095033A1 (en) | 1992-04-30 |
CA2095033C CA2095033C (en) | 1997-12-30 |
Family
ID=10684492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002095033A Expired - Fee Related CA2095033C (en) | 1990-10-29 | 1991-10-22 | Active vibration control system |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0555266B1 (en) |
JP (1) | JPH06502257A (en) |
AT (1) | ATE170654T1 (en) |
AU (1) | AU660423B2 (en) |
CA (1) | CA2095033C (en) |
DE (1) | DE69130112T2 (en) |
DK (1) | DK0555266T3 (en) |
ES (1) | ES2121790T3 (en) |
GB (1) | GB9023459D0 (en) |
WO (1) | WO1992008223A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5381485A (en) * | 1992-08-29 | 1995-01-10 | Adaptive Control Limited | Active sound control systems and sound reproduction systems |
GB9218465D0 (en) * | 1992-08-29 | 1992-10-14 | Adaptive Control Ltd | Active sound control systems and sound reproduction systems |
US5481615A (en) * | 1993-04-01 | 1996-01-02 | Noise Cancellation Technologies, Inc. | Audio reproduction system |
US7983813B2 (en) | 2004-10-29 | 2011-07-19 | Bose Corporation | Active suspending |
US8095268B2 (en) | 2004-10-29 | 2012-01-10 | Bose Corporation | Active suspending |
US7962261B2 (en) | 2007-11-12 | 2011-06-14 | Bose Corporation | Vehicle suspension |
DE102008061552A1 (en) * | 2008-12-11 | 2010-07-01 | Areva Energietechnik Gmbh | Method for reducing noise of electrical transformer, involves determining current operating point of transformer and providing measurement protocol for characterizing operating point dependent behavior of transformer |
WO2016199119A1 (en) * | 2015-06-06 | 2016-12-15 | Oppenheimer Yehuda | A system and method for active reduction of a predefined audio acoustic noise by using synchronization signals |
JP6917914B2 (en) * | 2018-01-18 | 2021-08-11 | 株式会社奥村組 | Active noise controlled sound field simulation method and simulation device |
JP6917937B2 (en) * | 2018-03-27 | 2021-08-11 | 株式会社奥村組 | Evaluation method and evaluation device for sound field simulation by active noise control |
DE102020116451B4 (en) | 2020-06-23 | 2024-02-08 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Device and method for active noise suppression in a vehicle |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4689821A (en) * | 1985-09-23 | 1987-08-25 | Lockheed Corporation | Active noise control system |
GB8610744D0 (en) * | 1986-05-01 | 1986-06-04 | Plessey Co Plc | Adaptive disturbance suppression |
JP2890196B2 (en) * | 1986-10-07 | 1999-05-10 | アダプティブ コントロール リミテッド | Active vibration control device or related improvements |
-
1990
- 1990-10-29 GB GB909023459A patent/GB9023459D0/en active Pending
-
1991
- 1991-10-22 JP JP3516923A patent/JPH06502257A/en active Pending
- 1991-10-22 DE DE69130112T patent/DE69130112T2/en not_active Expired - Fee Related
- 1991-10-22 WO PCT/GB1991/001849 patent/WO1992008223A1/en active IP Right Grant
- 1991-10-22 ES ES91918376T patent/ES2121790T3/en not_active Expired - Lifetime
- 1991-10-22 AT AT91918376T patent/ATE170654T1/en not_active IP Right Cessation
- 1991-10-22 CA CA002095033A patent/CA2095033C/en not_active Expired - Fee Related
- 1991-10-22 EP EP91918376A patent/EP0555266B1/en not_active Expired - Lifetime
- 1991-10-22 DK DK91918376T patent/DK0555266T3/en active
- 1991-10-22 AU AU87393/91A patent/AU660423B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
JPH06502257A (en) | 1994-03-10 |
WO1992008223A1 (en) | 1992-05-14 |
AU660423B2 (en) | 1995-06-29 |
EP0555266B1 (en) | 1998-09-02 |
AU8739391A (en) | 1992-05-26 |
CA2095033C (en) | 1997-12-30 |
ATE170654T1 (en) | 1998-09-15 |
DE69130112T2 (en) | 1999-03-04 |
EP0555266A1 (en) | 1993-08-18 |
ES2121790T3 (en) | 1998-12-16 |
GB9023459D0 (en) | 1990-12-12 |
DE69130112D1 (en) | 1998-10-08 |
DK0555266T3 (en) | 1999-05-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |