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
Authority: EP; European Patent Office
Prior art keywords: hollow body; helmholtz resonator; sound pressure; loudspeaker; simulated
Prior art date: 1992-08-13
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.)

1992-08-13

Filing date

1993-07-13

Publication date

1994-03-16

1993-07-13 Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG

1994-03-16 Publication of EP0586831A2 publication Critical patent/EP0586831A2/fr

1994-03-30 Publication of EP0586831A3 publication Critical patent/EP0586831A3/xx

1998-09-02 Application granted granted Critical

1998-09-02 Publication of EP0586831B1 publication Critical patent/EP0586831B1/fr

2013-07-13 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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
- G10K11/172—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
DE102017115271B4 (de) *	2017-07-07	2019-04-18	Tenneco Gmbh	Verfahren zum Betrieb eines Kraftfahrzeuggeräusch-Unterdrückungssystems
WO2019007700A1 (fr)	2017-07-07	2019-01-10	Tenneco Gmbh	Système de réduction de bruit

Family Cites Families (8)

* 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
US5119427A (en) *	1988-03-14	1992-06-02	Hersh Alan S	Extended frequency range Helmholtz resonators
DE3816921A1 (de) *	1988-05-18	1989-11-30	Bayerische Motoren Werke Ag	Anordnung zur verminderung des geraeuschpegels im innenraum eines kraftfahrzeugs
DE4011705A1 (de) *	1990-04-11	1991-10-17	Freudenberg Carl Fa	Luftschall absorbierendes formteil
US5119902A (en) *	1990-04-25	1992-06-09	Ford Motor Company	Active muffler transducer arrangement
DE4027511C1 (fr) *	1990-08-30	1991-10-02	Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen, De

1992
- 1992-08-13 DE DE4226885A patent/DE4226885C2/de not_active Expired - Fee Related
1993
- 1993-07-13 DE DE59308951T patent/DE59308951D1/de not_active Expired - Fee Related
- 1993-07-13 EP EP93111202A patent/EP0586831B1/fr not_active Expired - Lifetime

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

Legal Events

Date	Code	Title	Description
1994-01-28	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1994-02-10	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1994-03-16	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB IT
1994-03-30	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB IT
1994-05-04	17P	Request for examination filed	Effective date: 19940305
1996-12-18	17Q	First examination report despatched	Effective date: 19961105
1997-09-18	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1998-02-02	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1998-02-02	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1998-05-08	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1998-07-17	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1998-09-02	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT
1998-09-30	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19980903
1998-10-08	REF	Corresponds to:	Ref document number: 59308951 Country of ref document: DE Date of ref document: 19981008
1998-12-04	ET	Fr: translation filed
1999-07-09	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1999-07-09	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1999-08-25	26N	No opposition filed
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2002-07-11	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20020711 Year of fee payment: 10
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2004-03-03	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20030713
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