FR2783869B1 - Systeme anti-bruit de ligne d'echappement de vehicule automobile - Google Patents

Systeme anti-bruit de ligne d'echappement de vehicule automobile

Info

Publication number
FR2783869B1
FR2783869B1 FR9811954A FR9811954A FR2783869B1 FR 2783869 B1 FR2783869 B1 FR 2783869B1 FR 9811954 A FR9811954 A FR 9811954A FR 9811954 A FR9811954 A FR 9811954A FR 2783869 B1 FR2783869 B1 FR 2783869B1
Authority
FR
France
Prior art keywords
exhaust system
automotive exhaust
automotive
exhaust
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
FR9811954A
Other languages
English (en)
Other versions
FR2783869A1 (fr
Inventor
Laurent Marie Charles Poutot
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.)
ECIA Equipements et Composants pour lIndustrie Automobile SA
Original Assignee
ECIA Equipements et Composants pour lIndustrie Automobile SA
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 ECIA Equipements et Composants pour lIndustrie Automobile SA filed Critical ECIA Equipements et Composants pour lIndustrie Automobile SA
Priority to FR9811954A priority Critical patent/FR2783869B1/fr
Priority to DE19945644A priority patent/DE19945644A1/de
Publication of FR2783869A1 publication Critical patent/FR2783869A1/fr
Application granted granted Critical
Publication of FR2783869B1 publication Critical patent/FR2783869B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
    • F01N1/065—Silencing apparatus characterised by method of silencing by using interference effect by using an active noise source, e.g. speakers
    • 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
    • G10K11/1787—General system configurations
    • G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
    • 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
    • G10K2210/12822—Exhaust pipes or mufflers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
FR9811954A 1998-09-24 1998-09-24 Systeme anti-bruit de ligne d'echappement de vehicule automobile Expired - Fee Related FR2783869B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9811954A FR2783869B1 (fr) 1998-09-24 1998-09-24 Systeme anti-bruit de ligne d'echappement de vehicule automobile
DE19945644A DE19945644A1 (de) 1998-09-24 1999-09-23 Schalldämpfungssystem für Auspuffanlagen von Kraftfahrzeugen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9811954A FR2783869B1 (fr) 1998-09-24 1998-09-24 Systeme anti-bruit de ligne d'echappement de vehicule automobile

Publications (2)

Publication Number Publication Date
FR2783869A1 FR2783869A1 (fr) 2000-03-31
FR2783869B1 true FR2783869B1 (fr) 2000-12-22

Family

ID=9530800

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9811954A Expired - Fee Related FR2783869B1 (fr) 1998-09-24 1998-09-24 Systeme anti-bruit de ligne d'echappement de vehicule automobile

Country Status (2)

Country Link
DE (1) DE19945644A1 (fr)
FR (1) FR2783869B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10021031A1 (de) * 2000-05-02 2001-11-08 Mann & Hummel Filter Leitungssystem mit elektromechanischem Wandler zur Erzeugung eines Korrekturgeräusches

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1512014A (en) * 1974-06-21 1978-05-24 Univ Leeds Ind Service Ltd Method of attenuating longitudinal compression waves travelling in a gas filled duct
US4805733A (en) * 1987-07-07 1989-02-21 Nippondenso Co., Ltd. Active silencer

Also Published As

Publication number Publication date
DE19945644A1 (de) 2000-05-04
FR2783869A1 (fr) 2000-03-31

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20090529