EP1898059A3 - Active silencer for an exhaust system - Google Patents

Active silencer for an exhaust system Download PDF

Info

Publication number
EP1898059A3
EP1898059A3 EP07113287A EP07113287A EP1898059A3 EP 1898059 A3 EP1898059 A3 EP 1898059A3 EP 07113287 A EP07113287 A EP 07113287A EP 07113287 A EP07113287 A EP 07113287A EP 1898059 A3 EP1898059 A3 EP 1898059A3
Authority
EP
European Patent Office
Prior art keywords
exhaust system
sound
active silencer
sound generator
muffler
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
EP07113287A
Other languages
German (de)
French (fr)
Other versions
EP1898059B1 (en
EP1898059A2 (en
Inventor
Jan Krüger
Frank Castor
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.)
Eberspaecher Exhaust Technology GmbH and Co KG
Original Assignee
J Eberspaecher GmbH and Co KG
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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP1898059A2 publication Critical patent/EP1898059A2/en
Publication of EP1898059A3 publication Critical patent/EP1898059A3/en
Application granted granted Critical
Publication of EP1898059B1 publication Critical patent/EP1898059B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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

Abstract

Die vorliegende Erfindung betrifft einen aktiven Schalldämpfer (1) für eine Abgasanlage (2) einer Brennkraftmaschine, insbesondere in einem Kraftfahrzeug, mit zumindest einem Antischallerzeuger (3) zur Beaufschlagung von Abgas mit Antischall, wobei der Antischallerzeuger (3) einen Membranantrieb (9) aufweist, mit dem er über wenigstens ein Kopplungselement (11) wärmeleitend und schalldämpfend mit einer, mit der Umgebung (12) in Kontakt stehenden Außenwand (13) des Schalldämpfers (1) gekoppelt ist.

Figure imgaf001
The present invention relates to an active silencer (1) for an exhaust system (2) of an internal combustion engine, in particular in a motor vehicle, with at least one anti-sound generator (3) for applying exhaust gas with anti-sound, wherein the anti-sound generator (3) has a diaphragm drive (9) to which it is coupled via at least one coupling element (11) in a thermally conductive and sound-damping manner to an outer wall (13) of the muffler (1) which is in contact with the environment (12).
Figure imgaf001
EP07113287.2A 2006-09-06 2007-07-27 Active silencer for an exhaust system Active EP1898059B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006042224A DE102006042224B3 (en) 2006-09-06 2006-09-06 Active sound absorber for exhaust-gas system of internal-combustion engine particularly in motor vehicle, has anti sound generator comprises membrane drive, with which anti sound generator is coupled with external wall of sound absorber

Publications (3)

Publication Number Publication Date
EP1898059A2 EP1898059A2 (en) 2008-03-12
EP1898059A3 true EP1898059A3 (en) 2009-04-22
EP1898059B1 EP1898059B1 (en) 2014-09-17

Family

ID=38792355

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07113287.2A Active EP1898059B1 (en) 2006-09-06 2007-07-27 Active silencer for an exhaust system

Country Status (4)

Country Link
US (1) US7533759B2 (en)
EP (1) EP1898059B1 (en)
JP (1) JP5622999B2 (en)
DE (1) DE102006042224B3 (en)

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DE102007032600A1 (en) * 2007-07-11 2009-01-15 Deutsches Zentrum für Luft- und Raumfahrt e.V. Apparatus and method for improving the attenuation of acoustic waves
DE102008018085A1 (en) * 2008-04-09 2009-10-15 J. Eberspächer GmbH & Co. KG Active muffler
DE102009031848A1 (en) 2009-07-03 2011-01-05 J. Eberspächer GmbH & Co. KG Exhaust system with active silencer
DE102009032553A1 (en) * 2009-07-10 2011-01-20 J. Eberspächer GmbH & Co. KG Exhaust system and associated connection arrangement for an actuator
DE102010005138A1 (en) * 2010-01-19 2011-07-21 Kuhnke Automotive GmbH & Co. KG, 23714 Motor vehicle has electronic sound generating system with electrical vibration generator and electrical vibration generator that is fixed at baffle board, where baffle board is acoustic decoupled by body or frame of motor vehicle
DE102010042679A1 (en) 2010-10-20 2012-04-26 J. Eberspächer GmbH & Co. KG silencer
DE112011103989T5 (en) * 2010-12-01 2013-08-29 Faurecia Emissions Control Technologies, Usa, Llc Exhaust valve in combination with an active noise reduction system
DE102011010596A1 (en) 2011-02-08 2012-08-09 Daimler Ag Exhaust-gas system for discharging exhaust gas of internal combustion engine of vehicle, has sound source fluidically coupled with exhaust gas pipe by corrugated pipe, which allows relative movement of gas pipe against source
EP2530263B1 (en) 2011-06-01 2013-08-21 Eberspächer Exhaust Technology GmbH & Co. KG Active noise control system for exhaust systems and method for controlling the same
DE102011106647A1 (en) 2011-07-05 2013-01-10 J. Eberspächer GmbH & Co. KG ANTISCHALL SYSTEM FOR EXHAUST SYSTEMS AND METHOD FOR CONTROLLING THE SAME
DE102011084567C5 (en) * 2011-10-14 2019-08-14 Eberspächer Exhaust Technology GmbH & Co. KG Active muffler
DE102011117495B4 (en) 2011-11-02 2014-08-21 Eberspächer Exhaust Technology GmbH & Co. KG Overload protection for loudspeakers in exhaust systems
EP2600342B1 (en) 2011-12-02 2018-05-09 Eberspächer Exhaust Technology GmbH & Co. KG Active design of exhaust sounds
DE102011089774B4 (en) 2011-12-23 2014-03-27 Eberspächer Exhaust Technology GmbH & Co. KG exhaust system
DE102011089772B4 (en) * 2011-12-23 2016-09-29 Eberspächer Exhaust Technology GmbH & Co. KG exhaust system
DE102012109872B4 (en) 2012-10-16 2015-08-27 Eberspächer Exhaust Technology GmbH & Co. KG Speakers with improved thermal capacity
DE102012219981A1 (en) * 2012-10-31 2014-06-12 Bayerische Motoren Werke Aktiengesellschaft Actuator i.e. electrical actuator, for active exhaust system of motor vehicle, has speaker including speaker diaphragm and speaker magnet for excitation of diaphragm, and cooling device for cooling speaker magnet
DE102013104307A1 (en) 2013-04-26 2014-10-30 Eberspächer Exhaust Technology GmbH & Co. KG System for influencing exhaust noise and / or intake noise and / or engine noise
EP2797075B1 (en) 2013-04-26 2018-09-12 Eberspächer Exhaust Technology GmbH & Co. KG System for influencing exhaust noise, engine noise and/or intake noise
DE102013104810A1 (en) 2013-05-08 2014-11-13 Eberspächer Exhaust Technology GmbH & Co. KG VEHICLE GENERATOR FOR AN ANTI-VALL SYSTEM FOR INFLUENCING EXHAUST VACUUM AND / OR INTAKE NOISE OF A MOTOR VEHICLE
DE102013010609B4 (en) 2013-06-25 2023-07-27 Purem GmbH System for influencing exhaust noise in a multi-flow exhaust system and motor vehicle
DE102013011937B3 (en) 2013-07-17 2014-10-09 Eberspächer Exhaust Technology GmbH & Co. KG Sound generator for an anti-noise system for influencing exhaust noise and / or Ansauggeräuschen a motor vehicle
JP2015172370A (en) 2014-03-04 2015-10-01 エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー active design of exhaust sound
FR3023645B1 (en) * 2014-07-10 2020-02-28 Centre National De La Recherche Scientifique SOUND ATTENUATION DEVICE AND METHOD
US9595253B2 (en) * 2015-03-24 2017-03-14 Honda Motor Co., Ltd. Active noise reduction system, and vehicular active noise reduction system
DE102015119191A1 (en) 2015-11-06 2017-05-11 Eberspächer Exhaust Technology GmbH & Co. KG Sound generator for attachment to a vehicle for influencing noises of the vehicle
KR102378054B1 (en) * 2017-08-25 2022-03-25 현대자동차주식회사 Exhaust sound generating device of a vehicle
DE102017127454A1 (en) * 2017-11-21 2019-05-23 Faurecia Emissions Control Technologies, Germany Gmbh Sound generating device and vehicle exhaust system
CN111749754B (en) * 2019-03-27 2023-08-15 广州汽车集团股份有限公司 Exhaust system sound quality adjusting device and method

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Publication number Priority date Publication date Assignee Title
US4138593A (en) * 1976-02-24 1979-02-06 Braun Ag Moving voice coil loudspeaker with heat dissipating enclosure
EP0674097A1 (en) * 1994-02-22 1995-09-27 ELECTRONIC SOUND ATTENUATION S.p.A. Active exhaust gas muffler
US5693918A (en) * 1994-09-06 1997-12-02 Digisonix, Inc. Active exhaust silencer
EP0939577A2 (en) * 1998-02-27 1999-09-01 Tenneco Automotive Inc. Loudspeaker pressure plate

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JPS58214613A (en) * 1982-06-07 1983-12-13 Nissan Motor Co Ltd Device for reducing pulsating sound of exhaust from engine
US5097923A (en) * 1988-02-19 1992-03-24 Noise Cancellation Technologies, Inc. Active sound attenation system for engine exhaust systems and the like
US5457749A (en) * 1990-04-09 1995-10-10 Noise Cancellation Technologies, Inc. Electronic muffler
US5229556A (en) * 1990-04-25 1993-07-20 Ford Motor Company Internal ported band pass enclosure for sound cancellation
US5233137A (en) * 1990-04-25 1993-08-03 Ford Motor Company Protective anc loudspeaker membrane
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US5619020A (en) * 1991-08-29 1997-04-08 Noise Cancellation Technologies, Inc. Muffler
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JPH0663812U (en) * 1993-02-22 1994-09-09 カルソニック株式会社 Active silencer
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JP2587683Y2 (en) * 1993-08-12 1998-12-24 カルソニック株式会社 Active silencer
DE4342133A1 (en) * 1993-12-10 1995-06-14 Nokia Deutschland Gmbh Arrangement for active noise reduction
US6160892A (en) * 1993-12-30 2000-12-12 Bbn Corporation Active muffler
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JPH09209860A (en) * 1996-01-30 1997-08-12 Tenetsukusu:Kk Speaker installation structure
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DE19861018C2 (en) * 1998-12-15 2001-06-13 Fraunhofer Ges Forschung Controlled acoustic waveguide for sound absorption
EP1059830A3 (en) * 1999-05-19 2003-12-17 Faurecia Abgastechnik GmbH Electrodynamic loudspeaker with a control device for an active vehicle noice attenuator
US6758304B1 (en) * 1999-09-16 2004-07-06 Siemens Vdo Automotive Inc. Tuned Helmholtz resonator using cavity forcing
US6898289B2 (en) * 2000-09-20 2005-05-24 Siemens Vdo Automotive Inc. Integrated active noise attenuation system and fluid reservoir
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DE102004040421A1 (en) * 2004-08-19 2006-03-09 J. Eberspächer GmbH & Co. KG Active exhaust silencer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4138593A (en) * 1976-02-24 1979-02-06 Braun Ag Moving voice coil loudspeaker with heat dissipating enclosure
EP0674097A1 (en) * 1994-02-22 1995-09-27 ELECTRONIC SOUND ATTENUATION S.p.A. Active exhaust gas muffler
US5693918A (en) * 1994-09-06 1997-12-02 Digisonix, Inc. Active exhaust silencer
EP0939577A2 (en) * 1998-02-27 1999-09-01 Tenneco Automotive Inc. Loudspeaker pressure plate

Also Published As

Publication number Publication date
JP2008064093A (en) 2008-03-21
JP5622999B2 (en) 2014-11-12
EP1898059B1 (en) 2014-09-17
DE102006042224B3 (en) 2008-01-17
US7533759B2 (en) 2009-05-19
US20080053747A1 (en) 2008-03-06
EP1898059A2 (en) 2008-03-12

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