EP0586831A3 - - Google Patents

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Publication number
EP0586831A3
EP0586831A3 EP19930111202 EP93111202A EP0586831A3 EP 0586831 A3 EP0586831 A3 EP 0586831A3 EP 19930111202 EP19930111202 EP 19930111202 EP 93111202 A EP93111202 A EP 93111202A EP 0586831 A3 EP0586831 A3 EP 0586831A3
Authority
EP
European Patent Office
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
EP19930111202
Other versions
EP0586831B1 (en
EP0586831A2 (en
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/en
Publication of EP0586831A3 publication Critical patent/EP0586831A3/xx
Application granted granted Critical
Publication of EP0586831B1 publication Critical patent/EP0586831B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

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 Sound absorption method for motor vehicles Expired - Lifetime EP0586831B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4226885 1992-08-13
DE4226885A DE4226885C2 (en) 1992-08-13 1992-08-13 Sound absorption process for motor vehicles

Publications (3)

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

Family

ID=6465521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93111202A Expired - Lifetime EP0586831B1 (en) 1992-08-13 1993-07-13 Sound absorption method for motor vehicles

Country Status (2)

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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4446080B4 (en) * 1994-12-22 2004-03-18 Bayerische Motoren Werke Ag Sound absorption system for motor vehicles
EP0916817B1 (en) 1997-11-18 2006-02-08 Faurecia Abgastechnik GmbH Active silencer
DE19861018C2 (en) 1998-12-15 2001-06-13 Fraunhofer Ges Forschung Controlled acoustic waveguide for sound absorption
EP1085201B1 (en) * 1999-09-16 2003-11-19 Siemens VDO Automotive Inc. Tuned active helmholtz resonator with forced response
GB2387522B (en) * 2002-04-10 2005-09-28 Hobelsberger Max Tunable active sound absorbers
DE102004016689A1 (en) * 2004-04-05 2005-10-27 Volkswagen Ag Improvement of acoustic situation in passenger cabin of vehicle, comprising use of Helmholtz-resonators
FR2899011B1 (en) * 2006-03-24 2008-07-18 Eurocopter France METHOD AND DEVICE FOR PROCESSING NOISE ON BOARD AN AIRCRAFT
WO2013064602A1 (en) 2011-11-04 2013-05-10 Empa Eidgenössische Materialprüfungs- Und Forschungsanstalt Adaptive helmholtz resonator
DE102017115271B4 (en) * 2017-07-07 2019-04-18 Tenneco Gmbh Method for operating a motor vehicle noise suppression system
WO2019007700A1 (en) 2017-07-07 2019-01-10 Tenneco Gmbh Noise cancellation system
CN111720189B (en) * 2019-03-22 2024-01-23 广州汽车集团股份有限公司 Exhaust system sound quality adjusting device and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0342353A2 (en) * 1988-05-18 1989-11-23 Bayerische Motoren Werke Aktiengesellschaft Arrangement for diminishing the noise level within a motor car
EP0454341A2 (en) * 1990-04-25 1991-10-30 Ford Motor Company Limited An active noise cancellation apparatus
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 (en) * 1984-04-03 1985-10-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Sound-absorbing building element
DE3720946A1 (en) * 1986-07-03 1988-01-07 Volkswagen Ag Body platform for a motor vehicle
DE3729765A1 (en) * 1987-09-05 1989-03-16 Bayerische Motoren Werke Ag Sound absorption system
DE4011705A1 (en) * 1990-04-11 1991-10-17 Freudenberg Carl Fa AIR SOUND ABSORBING MOLDED PART
DE4027511C1 (en) * 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 (en) * 1988-05-18 1989-11-23 Bayerische Motoren Werke Aktiengesellschaft Arrangement for diminishing the noise level within a motor car
EP0454341A2 (en) * 1990-04-25 1991-10-30 Ford Motor Company Limited An active noise cancellation apparatus

Also Published As

Publication number Publication date
DE4226885A1 (en) 1994-02-17
DE4226885C2 (en) 2001-04-19
EP0586831B1 (en) 1998-09-02
DE59308951D1 (en) 1998-10-08
EP0586831A2 (en) 1994-03-16

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