EP0586831A2 - Procédé d'absorption du son pour véhicules automobiles - Google Patents

Procédé d'absorption du son pour véhicules automobiles Download PDF

Info

Publication number
EP0586831A2
EP0586831A2 EP93111202A EP93111202A EP0586831A2 EP 0586831 A2 EP0586831 A2 EP 0586831A2 EP 93111202 A EP93111202 A EP 93111202A EP 93111202 A EP93111202 A EP 93111202A EP 0586831 A2 EP0586831 A2 EP 0586831A2
Authority
EP
European Patent Office
Prior art keywords
helmholtz resonator
hollow body
sound pressure
loudspeaker
ahr
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
Application number
EP93111202A
Other languages
German (de)
English (en)
Other versions
EP0586831B1 (fr
EP0586831A3 (fr
Inventor
Raymond Dr. Freymann
Helmut Spannheimer
Rainer Beer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0586831A2 publication Critical patent/EP0586831A2/fr
Publication of EP0586831A3 publication Critical patent/EP0586831A3/xx
Application granted granted Critical
Publication of EP0586831B1 publication Critical patent/EP0586831B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • 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 Helmholtz resonator that is sonicated with a loudspeaker is also referred to as an active Helmholtz resonator, while conventional Helmholtz resonators with predetermined real volumes are also called passive Helmholtz resonators.
  • FIG. 4 shows an active Helmholtz resonator AHR and a passive comparative Helmholtz resonator PHR.
  • a microphone M1 outside of the two Helmholtz resonators and a microphone M2 within the passive comparison Helmholtz resonator PHR are connected to an arithmetic unit R via input lines.
  • An output line of the computing unit R is connected to the loudspeaker L of the active Helmholtz resonator AHR.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP93111202A 1992-08-13 1993-07-13 Procédé d'absorption du son pour véhicules automobiles Expired - Lifetime EP0586831B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4226885 1992-08-13
DE4226885A DE4226885C2 (de) 1992-08-13 1992-08-13 Schallabsorptionsverfahren für Kraftfahrzeuge

Publications (3)

Publication Number Publication Date
EP0586831A2 true EP0586831A2 (fr) 1994-03-16
EP0586831A3 EP0586831A3 (fr) 1994-03-30
EP0586831B1 EP0586831B1 (fr) 1998-09-02

Family

ID=6465521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93111202A Expired - Lifetime EP0586831B1 (fr) 1992-08-13 1993-07-13 Procédé d'absorption du son pour véhicules automobiles

Country Status (2)

Country Link
EP (1) EP0586831B1 (fr)
DE (2) DE4226885C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2387522A (en) * 2002-04-10 2003-10-15 Hobelsberger Max Tunable active sound absorber
EP1085201B1 (fr) * 1999-09-16 2003-11-19 Siemens VDO Automotive Inc. Résonateur Helmholtz actif, ajusté et à réponse forcée
WO2013064602A1 (fr) 2011-11-04 2013-05-10 Empa Eidgenössische Materialprüfungs- Und Forschungsanstalt Résonateur de helmholtz adaptatif
CN111720189A (zh) * 2019-03-22 2020-09-29 广州汽车集团股份有限公司 一种排气系统声品质调节装置与方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4446080B4 (de) * 1994-12-22 2004-03-18 Bayerische Motoren Werke Ag Schallabsorptionssystem für Kraftfahrzeuge
EP0916817B1 (fr) 1997-11-18 2006-02-08 Faurecia Abgastechnik GmbH Silencieux actif
DE19861018C2 (de) 1998-12-15 2001-06-13 Fraunhofer Ges Forschung Gesteuerter akustischer Wellenleiter zur Schalldämpfung
DE102004016689A1 (de) * 2004-04-05 2005-10-27 Volkswagen Ag Verfahren und Vorrichtung zum Verbessern von Klangeigenschaften in einem Fahrzeug
FR2899011B1 (fr) * 2006-03-24 2008-07-18 Eurocopter France Procede et dispositif de traitement du bruit a bord d'un aeronef
WO2019007700A1 (fr) 2017-07-07 2019-01-10 Tenneco Gmbh Système de réduction de bruit
DE102017115271B4 (de) * 2017-07-07 2019-04-18 Tenneco Gmbh Verfahren zum Betrieb eines Kraftfahrzeuggeräusch-Unterdrückungssystems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0342353A2 (fr) * 1988-05-18 1989-11-23 Bayerische Motoren Werke Aktiengesellschaft Dispositif pour atténuer le niveau du bruit dans une automobile
EP0454341A2 (fr) * 1990-04-25 1991-10-30 Ford Motor Company Limited Dispositif pour la suppression du bruit
US5119427A (en) * 1988-03-14 1992-06-02 Hersh Alan S Extended frequency range Helmholtz resonators

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412432A1 (de) * 1984-04-03 1985-10-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Schallabsorbierendes bauelement
DE3720946A1 (de) * 1986-07-03 1988-01-07 Volkswagen Ag Bodengruppe fuer ein kraftfahrzeug
DE3729765A1 (de) * 1987-09-05 1989-03-16 Bayerische Motoren Werke Ag Schallabsorptionssystem
DE4011705A1 (de) * 1990-04-11 1991-10-17 Freudenberg Carl Fa Luftschall absorbierendes formteil
DE4027511C1 (fr) * 1990-08-30 1991-10-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen, De

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5119427A (en) * 1988-03-14 1992-06-02 Hersh Alan S Extended frequency range Helmholtz resonators
EP0342353A2 (fr) * 1988-05-18 1989-11-23 Bayerische Motoren Werke Aktiengesellschaft Dispositif pour atténuer le niveau du bruit dans une automobile
EP0454341A2 (fr) * 1990-04-25 1991-10-30 Ford Motor Company Limited Dispositif pour la suppression du bruit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1085201B1 (fr) * 1999-09-16 2003-11-19 Siemens VDO Automotive Inc. Résonateur Helmholtz actif, ajusté et à réponse forcée
GB2387522A (en) * 2002-04-10 2003-10-15 Hobelsberger Max Tunable active sound absorber
GB2387522B (en) * 2002-04-10 2005-09-28 Hobelsberger Max Tunable active sound absorbers
WO2013064602A1 (fr) 2011-11-04 2013-05-10 Empa Eidgenössische Materialprüfungs- Und Forschungsanstalt Résonateur de helmholtz adaptatif
CN111720189A (zh) * 2019-03-22 2020-09-29 广州汽车集团股份有限公司 一种排气系统声品质调节装置与方法
CN111720189B (zh) * 2019-03-22 2024-01-23 广州汽车集团股份有限公司 一种排气系统声品质调节装置与方法

Also Published As

Publication number Publication date
EP0586831B1 (fr) 1998-09-02
DE4226885A1 (de) 1994-02-17
EP0586831A3 (fr) 1994-03-30
DE4226885C2 (de) 2001-04-19
DE59308951D1 (de) 1998-10-08

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