EP0457176A2 - Système actif d'atténuation pour l'habitacle de véhicules à moteur - Google Patents

Système actif d'atténuation pour l'habitacle de véhicules à moteur Download PDF

Info

Publication number: EP0457176A2
Authority: EP; European Patent Office
Prior art keywords: field; noise reduction; reduction system; active noise; far
Prior art date: 1990-05-12
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

Application number

EP91107463A

Other languages

German (de)

English (en)

Other versions

EP0457176A3 (en

EP0457176B1 (fr

Inventor

Bernhard Dipl.-Ing. Lange

Klaus Dr.-Ing. Hieronimus

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Adam Opel GmbH

Original Assignee

Adam Opel GmbH

Priority date (The priority date 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 date listed.)

1990-05-12

Filing date

1991-05-08

Publication date

1991-11-21

1991-05-08 Application filed by Adam Opel GmbH filed Critical Adam Opel GmbH

1991-11-21 Publication of EP0457176A2 publication Critical patent/EP0457176A2/fr

1992-09-02 Publication of EP0457176A3 publication Critical patent/EP0457176A3/de

1995-10-11 Application granted granted Critical

1995-10-11 Publication of EP0457176B1 publication Critical patent/EP0457176B1/fr

2011-05-08 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

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
- G10K11/1783—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 handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
- 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
- G10K2210/103—Three dimensional
- 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
- G10K2210/10—Applications
- G10K2210/128—Vehicles
- G10K2210/1282—Automobiles
- G10K2210/12821—Rolling noise; Wind and body noise
- 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
- G10K2210/3217—Collocated sensor and cancelling actuator, e.g. "virtual earth" designs
- 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
- G10K2210/3221—Headrests, seats or the like, for personal ANC systems
- 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
- G10K2210/3227—Resonators
- G10K2210/32272—Helmholtz resonators

Definitions

the invention relates to an active noise reduction system for the interior of motor vehicles and other means of transport with at least one noise sensor or microphone, at least one loudspeaker and at least one control device which receives the output signal of the noise sensor or microphone as an actual variable and emits an actuating signal acting on the loudspeaker, the spatial Distance between speaker and microphone can be relatively small ("near field”) or large (“far field”).
a noise reduction system for motor vehicles is known from EP 0 342 353, in which the microphones are arranged in a Helmholtz resonator.
the loudspeakers are located at locations of maximum sound pressure such as in the front area of the foot or the parcel shelf.
the Helmholtz resonator is tuned to the natural gas frequency to be damped.
control devices of the generic type derive a reference signal from the ignition frequency of the internal combustion engine via a sensor, with which a compensation of the sound field structure is to be effected.
the known systems have in common that the radiation of very low frequencies requires relatively large loudspeakers, and at higher frequencies (from 150 Hz) a large number of loudspeakers are required or advantageous close to the ears. The cost and computational effort increase accordingly. The electrical stability of the control loop becomes more problematic.
This object is achieved in that there are at least two subsystems, each with at least one noise sensor or microphone and a loudspeaker, one for the "near field” and one for the "far field", that the frequencies to be processed by the control device for the near field lie above and for the far field below a characteristic cut-off frequency f g , and that at least one specific interior area is affected both by the near field method and by the far field method.
the frequency bands formed by the cut-off frequency f g partially overlap and dominate in the frequency overlap area that system which can work more effectively in accordance with the sound field structure.
the frequency band assigned to the far field or near field method can be narrowband or broadband or vice versa.
the two subsystems working according to the near field or far field method can either work independently of one another and can only be coupled to one another via the sound field to be reduced, or can use a common control unit or also have their own control units that are coupled to one another.
the noise reduction system according to the invention has the significant advantage that it leads to better compensation in terms of control technology and works effectively with fewer components and is less susceptible to faults with regard to the stability of the control loop.
the schematic active noise reduction system shown in FIG. 1 is composed of several components: 1a and 2a are microphones or loudspeakers for the far field, while 1b and 2b represent microphones or loudspeakers for the near field.
3 denotes the electronic control unit of the active noise reduction unit ANC (Active Noise Control), which can be arranged, for example, in the housing 4 of a car radio.
Reference number 5 denotes a tachometer sensor from which a reference signal proportional to the ignition frequency can be derived in order to generate a reference signal for the ANC (Active Noise Control).
the loudspeakers or microphones intended for far-field compensation are spatially relatively far apart, for example in that the loudspeakers are arranged in the lower foot area for the front and rear seats and on the parcel shelf, while the corresponding microphones can be arranged in the upper head area from the dashboard height and above.
the loudspeakers and corresponding microphones are spaced relatively close and are arranged in the vicinity of the head of, for example, the driver or front passenger or the rear passengers in the area of the headrests or door pillars. With this arrangement, the upper area of the Passenger space after the far field and the area of the driver or passenger or the area of the rear passengers additionally influenced by the near field method.
the active noise reduction system (ANC) for the interior of motor vehicles divides the frequencies to be processed into two frequency bands, which are distinguished from one another by a characteristic cut-off frequency f g .
the characteristic for the far field frequency band A0 (Fig. 2) is below, the characteristic for the near field frequency band B0 above a cutoff frequency of 100 to 400 Hz.
the two frequency bands A1, B1 (Fig. 3) can partially overlap.
the electronic control and regulating unit for the near or far field preferably consists of a signal processor that influences both fields together, the two subsystems being coupled via decentralized interactive logics and both working digitally or analogously or partly digitally and partly analogly.
the noise reduction system according to the invention can also be used, for example, in motor vehicles. B. in airplanes and other means of transport, wherever unrolling, strong wind and engine noise occur.

Landscapes

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)

EP91107463A 1990-05-12 1991-05-08 Système actif d'atténuation pour l'habitacle de véhicules à moteur Expired - Lifetime EP0457176B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4015313A DE4015313A1 (de)	1990-05-12	1990-05-12	Aktives geraeuschminderungssystem fuer den innenraum von kraftfahrzeugen
DE4015313		1990-05-12

Publications (3)

Publication Number	Publication Date
EP0457176A2 true EP0457176A2 (fr)	1991-11-21
EP0457176A3 EP0457176A3 (en)	1992-09-02
EP0457176B1 EP0457176B1 (fr)	1995-10-11

Family

ID=6406282

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91107463A Expired - Lifetime EP0457176B1 (fr)	1990-05-12	1991-05-08	Système actif d'atténuation pour l'habitacle de véhicules à moteur

Country Status (2)

Country	Link
EP (1)	EP0457176B1 (fr)
DE (2)	DE4015313A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1996017340A1 (fr) *	1994-11-30	1996-06-06	Lord Corporation	Vibreurs a selection de frequences
FR2766953A1 (fr) *	1997-07-29	1999-02-05	Renault	Dispositif de controle acoustique dans un volume
US7062049B1 (en) *	1999-03-09	2006-06-13	Honda Giken Kogyo Kabushiki Kaisha	Active noise control system
WO2007115875A1 (fr) *	2006-04-10	2007-10-18	Robert Bosch Gmbh	Arrangement de restitution de bruits aériens

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4236155C2 (de) *	1992-10-20	1996-02-08	Gsp Sprachtechnologie Ges Fuer	Verfahren und Anordnung zur aktiven Innengeräuschreduzierung bei Fahrzeugen
DE19946083A1 (de) *	1999-09-25	2001-03-29	Volkswagen Ag	Einrichtung zur aktiven Verringerung des Geräuschpegels
DE102004019788A1 (de) *	2004-04-23	2005-11-24	Airbus Deutschland Gmbh	Aktive Geräuschminderung im Bereich eines Passagiersitzes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5986992A (ja) *	1982-11-10	1984-05-19	Matsushita Electric Ind Co Ltd	車載用音響再生装置
EP0166543A2 (fr) *	1984-05-31	1986-01-02	Pioneer Electronic Corporation	Dispositif de correction d'un champ sonore mobile
EP0342353A2 (fr) *	1988-05-18	1989-11-23	Bayerische Motoren Werke Aktiengesellschaft	Dispositif pour atténuer le niveau du bruit dans une automobile
WO1989011841A1 (fr) *	1988-06-07	1989-12-14	Noise Cancellation Technologies, Inc.	Systeme d'attenuation de son pour siege individuel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3411494A1 (de) *	1984-03-28	1985-10-03	Axel 6000 Frankfurt Klopprogge	Verfahren zur unterdrueckung von schall sowie schaltungsanordnung und schallschutzvorrichtung zur durchfuehrung des verfahrens
GB8820922D0 (en) *	1988-09-06	1988-10-05	Topexpress Ltd	Noise reduction in vehicles cabins

1990
- 1990-05-12 DE DE4015313A patent/DE4015313A1/de active Granted
1991
- 1991-05-08 DE DE59106641T patent/DE59106641D1/de not_active Expired - Fee Related
- 1991-05-08 EP EP91107463A patent/EP0457176B1/fr not_active Expired - Lifetime

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5986992A (ja) *	1982-11-10	1984-05-19	Matsushita Electric Ind Co Ltd	車載用音響再生装置
EP0166543A2 (fr) *	1984-05-31	1986-01-02	Pioneer Electronic Corporation	Dispositif de correction d'un champ sonore mobile
EP0342353A2 (fr) *	1988-05-18	1989-11-23	Bayerische Motoren Werke Aktiengesellschaft	Dispositif pour atténuer le niveau du bruit dans une automobile
WO1989011841A1 (fr) *	1988-06-07	1989-12-14	Noise Cancellation Technologies, Inc.	Systeme d'attenuation de son pour siege individuel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 200 (E-266)(1637) 13. September 1984 & JP-A-59 086 992 ( MATSUSHITA ) 19. Mai 1984 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1996017340A1 (fr) *	1994-11-30	1996-06-06	Lord Corporation	Vibreurs a selection de frequences
US5754662A (en) *	1994-11-30	1998-05-19	Lord Corporation	Frequency-focused actuators for active vibrational energy control systems
FR2766953A1 (fr) *	1997-07-29	1999-02-05	Renault	Dispositif de controle acoustique dans un volume
US7062049B1 (en) *	1999-03-09	2006-06-13	Honda Giken Kogyo Kabushiki Kaisha	Active noise control system
US7254240B2 (en)	1999-03-09	2007-08-07	Honda Giken Kogyo Kabushiki Kaisha	Active noise control system
WO2007115875A1 (fr) *	2006-04-10	2007-10-18	Robert Bosch Gmbh	Arrangement de restitution de bruits aériens

Also Published As

Publication number	Publication date
DE4015313C2 (fr)	1993-02-25
EP0457176A3 (en)	1992-09-02
EP0457176B1 (fr)	1995-10-11
DE59106641D1 (de)	1995-11-16
DE4015313A1 (de)	1991-11-14

Publication	Publication Date	Title
DE4402699C2 (de)	1996-01-11	Vorrichtung zur Verminderung des Reifen/Fahrbahngeräusches
DE112010004222B4 (de)	2022-05-05	Lenkradsystem mit Audioeingabe, Lenkrad für ein Fahrzeug und Audioeingabesystem für ein Fahrzeuglenkrad
DE19938171C2 (de)	2001-07-05	Verfahren zur Verarbeitung von akustischen Signalen und Kommunikationsanlage für Insassen in einem Fahrzeug
DE10016104C2 (de)	2002-03-21	Vorrichtung zur Beschallung des Fahrgastraumes eines Kraftfahrzeuges
EP2352142B1 (fr)	2022-10-19	Dispositif de compensation du bruit dans un véhicule automobile
DE10124369B4 (de)	2019-06-13	In einem Fahrzeug angeordnete Monitorvorrichtung
DE3420463A1 (de)	1985-12-05	Vorrichtung zur beschallung
EP0457176A2 (fr)	1991-11-21	Système actif d'atténuation pour l'habitacle de véhicules à moteur
DE112013004693B4 (de)	2018-07-12	Aktive Geräuschreduzierungsvorrichtung
DE10392880T5 (de)	2005-08-25	Rauschunterdrückungssystem und Kopfhörer hierfür
DE102004031657B4 (de)	2017-08-24	Verfahren zum Unterdrücken von Geräuschen in einem Fahrzeuginnenraum
DE69210169T2 (de)	1996-10-02	Aktives Lärmunterdrückungssystem
DE102004048990A1 (de)	2006-04-06	Lautsprecheranordnung in einem Kraftfahrzeug
EP0342353B1 (fr)	1993-08-11	Dispositif pour atténuer le niveau du bruit dans une automobile
DE102005058826A1 (de)	2007-06-14	Lautsprechersystem
DE4026070C2 (de)	2000-05-11	Einrichtung zur aktiven Verringerung eines Geräuschpegels am Ort von Personen
DE4328720A1 (de)	1995-03-02	Anordnung von Lautsprechern in Kraftfahrzeugen
DE19931270A1 (de)	2001-01-18	Automobiles Soundsystem und Automobil mit einem solchen
DE10032666B4 (de)	2005-06-02	Audiosystem für ein Kraftfahrzeug
DE69219273T2 (de)	1997-11-20	Aktives Lärmunterdrückungssystem
DE4329991A1 (de)	1995-03-09	Kopfhörer mit elektrostatischem Gegentaktwandler
DE102013216322A1 (de)	2014-03-06	Elektronische Vorrichtung
DE3934215A1 (de)	1991-04-18	Digital/analogsystem
DE10336977B4 (de)	2005-08-04	Kompensationsschaltung zur Beseitigung von Audiorauschen an einem Automobilsensor und Verfahren zur Kompensation
EP1206361B1 (fr)	2004-04-21	Procede et dispositif pour modifier automatiquement une ouverture dans le revetement exterieur d'une cabine de vehicule

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