DE59404716D1 - Vorrichtung zur aktiven akustischen Schallkompensation in Hohlräumen eines Kraftfahrzeuges - Google Patents

Vorrichtung zur aktiven akustischen Schallkompensation in Hohlräumen eines Kraftfahrzeuges

Info

Publication number
DE59404716D1
DE59404716D1 DE59404716T DE59404716T DE59404716D1 DE 59404716 D1 DE59404716 D1 DE 59404716D1 DE 59404716 T DE59404716 T DE 59404716T DE 59404716 T DE59404716 T DE 59404716T DE 59404716 D1 DE59404716 D1 DE 59404716D1
Authority
DE
Germany
Prior art keywords
cavities
motor vehicle
acoustic sound
active acoustic
sound compensation
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.)
Expired - Fee Related
Application number
DE59404716T
Other languages
English (en)
Inventor
Raymond Dr Freymann
Rainer Beer
Dieter Dr Guicking
Marcus Dr Bronzel
Wolfgang Dr Boehm
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
Application granted granted Critical
Publication of DE59404716D1 publication Critical patent/DE59404716D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10K11/175—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
    • G10K11/17855—Methods, e.g. algorithms; Devices for improving speed or power requirements
    • 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
    • G10K11/1787—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
    • G10K2210/3017—Copy, i.e. whereby an estimated transfer function in one functional block is copied to another block
    • 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
    • G10K2210/3025—Determination of spectrum characteristics, e.g. FFT
    • 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
    • G10K2210/3028—Filtering, e.g. Kalman filters or special analogue or digital filters
    • 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

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)
DE59404716T 1993-10-13 1994-09-08 Vorrichtung zur aktiven akustischen Schallkompensation in Hohlräumen eines Kraftfahrzeuges Expired - Fee Related DE59404716D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4334942A DE4334942A1 (de) 1993-10-13 1993-10-13 Vorrichtung zur aktiven akustischen Schallkompensation in Hohlräumen eines Kraftfahrzeuges

Publications (1)

Publication Number Publication Date
DE59404716D1 true DE59404716D1 (de) 1998-01-15

Family

ID=6500083

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4334942A Withdrawn DE4334942A1 (de) 1993-10-13 1993-10-13 Vorrichtung zur aktiven akustischen Schallkompensation in Hohlräumen eines Kraftfahrzeuges
DE59404716T Expired - Fee Related DE59404716D1 (de) 1993-10-13 1994-09-08 Vorrichtung zur aktiven akustischen Schallkompensation in Hohlräumen eines Kraftfahrzeuges

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4334942A Withdrawn DE4334942A1 (de) 1993-10-13 1993-10-13 Vorrichtung zur aktiven akustischen Schallkompensation in Hohlräumen eines Kraftfahrzeuges

Country Status (2)

Country Link
EP (1) EP0649129B1 (de)
DE (2) DE4334942A1 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3542954A (en) * 1968-06-17 1970-11-24 Bell Telephone Labor Inc Dereverberation by spectral measurement
SU836654A1 (ru) * 1979-07-18 1981-06-07 Научно-Исследовательский Институтстроительной Физики Госстроя Cccp Устройство дл подавлени шумов
SU1494031A1 (ru) * 1987-01-30 1989-07-15 Предприятие П/Я А-1687 Устройство дл компенсации случайных акустических колебаний в конструкци х и средах
JPH05232969A (ja) * 1992-02-19 1993-09-10 Mazda Motor Corp 車両用振動制御装置
US5222148A (en) * 1992-04-29 1993-06-22 General Motors Corporation Active noise control system for attenuating engine generated noise
FR2701784B1 (fr) * 1993-02-18 1995-05-12 Matra Sep Imagerie Inf Procédé et dispositif d'amortissement actif de vibrations.

Also Published As

Publication number Publication date
EP0649129B1 (de) 1997-12-03
DE4334942A1 (de) 1995-04-20
EP0649129A2 (de) 1995-04-19
EP0649129A3 (de) 1996-02-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee