EP1059830A3 - Electrodynamic loudspeaker with a control device for an active vehicle noice attenuator - Google Patents

Electrodynamic loudspeaker with a control device for an active vehicle noice attenuator Download PDF

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Publication number
EP1059830A3
EP1059830A3 EP00110585A EP00110585A EP1059830A3 EP 1059830 A3 EP1059830 A3 EP 1059830A3 EP 00110585 A EP00110585 A EP 00110585A EP 00110585 A EP00110585 A EP 00110585A EP 1059830 A3 EP1059830 A3 EP 1059830A3
Authority
EP
European Patent Office
Prior art keywords
control device
noice
attenuator
electrodynamic loudspeaker
active vehicle
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.)
Withdrawn
Application number
EP00110585A
Other languages
German (de)
French (fr)
Other versions
EP1059830A2 (en
Inventor
Martin Unbehaun
Gerhard Zintel
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.)
Faurecia Automobiltechnik GmbH
Original Assignee
Faurecia Abgastechnik GmbH
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 Faurecia Abgastechnik GmbH filed Critical Faurecia Abgastechnik GmbH
Publication of EP1059830A2 publication Critical patent/EP1059830A2/en
Publication of EP1059830A3 publication Critical patent/EP1059830A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Exhaust Silencers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Ein elektrodynamischer Lautsprecher mit einem ein Magnetfeld (14) erzeugenden Magneten (3), einer Schwingspule (6) und einer um eine Mittellage schwingenden Membran (2) weist eine Regeleinrichtung auf, mit der eine Mittellagen-Abweichung der Membran (2) mit Hilfe eines Sensors (10) detektierbar und die Schwingspule (6) mit einer der Abweichung entgegenwirkenden Gleichspannung beaufschlagbar ist.

Figure 00000001
An electrodynamic loudspeaker with a magnet (3) generating a magnetic field (14), a voice coil (6) and a membrane (2) vibrating around a central position has a control device with which a central position deviation of the membrane (2) can be determined using a Sensor (10) is detectable and the voice coil (6) can be acted upon by a DC voltage counteracting the deviation.
Figure 00000001
EP00110585A 1999-05-19 2000-05-18 Electrodynamic loudspeaker with a control device for an active vehicle noice attenuator Withdrawn EP1059830A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19922897 1999-05-19
DE19922897 1999-05-19

Publications (2)

Publication Number Publication Date
EP1059830A2 EP1059830A2 (en) 2000-12-13
EP1059830A3 true EP1059830A3 (en) 2003-12-17

Family

ID=7908472

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00110585A Withdrawn EP1059830A3 (en) 1999-05-19 2000-05-18 Electrodynamic loudspeaker with a control device for an active vehicle noice attenuator
EP00110736A Expired - Lifetime EP1055804B1 (en) 1999-05-19 2000-05-19 Active exhaust silencer

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00110736A Expired - Lifetime EP1055804B1 (en) 1999-05-19 2000-05-19 Active exhaust silencer

Country Status (2)

Country Link
EP (2) EP1059830A3 (en)
DE (1) DE50001427D1 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004040421A1 (en) * 2004-08-19 2006-03-09 J. Eberspächer GmbH & Co. KG Active exhaust silencer
DE102006042224B3 (en) * 2006-09-06 2008-01-17 J. Eberspächer GmbH & Co. KG 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
DE102008018085A1 (en) 2008-04-09 2009-10-15 J. Eberspächer GmbH & Co. KG Active muffler
DE102009049280B4 (en) 2009-10-13 2016-10-06 Eberspächer Exhaust Technology GmbH & Co. KG Active muffler
US9025786B2 (en) 2011-06-01 2015-05-05 Eberspaecher 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
DE102011117495B4 (en) 2011-11-02 2014-08-21 Eberspächer Exhaust Technology GmbH & Co. KG Overload protection for loudspeakers in exhaust systems
DE102011117807A1 (en) * 2011-11-07 2013-05-08 Friedrich Boysen Gmbh & Co. Kg Sound damping device for gas-guiding pipe, particularly for exhaust pipe of exhaust gas system of motor vehicle, has vibratory membrane, which stays in acoustic connection with gas-guiding pipe at coupling-out point
JP5681691B2 (en) 2011-12-02 2015-03-11 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 noise
DE102011089774B4 (en) * 2011-12-23 2014-03-27 Eberspächer Exhaust Technology GmbH & Co. KG exhaust system
DE102012005893A1 (en) * 2012-03-23 2013-09-26 Audi Ag Method for operating a loudspeaker device, loudspeaker device and device for noise compensation
DE102012109872B4 (en) 2012-10-16 2015-08-27 Eberspächer Exhaust Technology GmbH & Co. KG Speakers with improved thermal capacity
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
DE102013208186B4 (en) 2013-05-03 2016-09-22 Eberspächer Exhaust Technology GmbH & Co. KG Sound generator for an exhaust system
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
DE102013217849A1 (en) * 2013-09-06 2015-03-12 Friedrich Boysen Gmbh & Co. Kg Active sound generating device
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
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
US11012788B2 (en) 2018-03-27 2021-05-18 Sony Corporation Loudspeaker system
EP3547713B1 (en) 2018-03-27 2023-11-22 Sony Group Corporation Loudspeaker with an acoustic waveguide, and method
DE102018109529B4 (en) * 2018-04-20 2019-11-28 Tenneco Gmbh Retaining flange for metering valve
CN113153493B (en) * 2021-04-26 2023-03-28 吉林大学 Exhaust silencer for internal combustion engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014096A (en) * 1956-05-29 1961-12-19 Warner W Clements Sound reproducing means
US4243839A (en) * 1977-12-14 1981-01-06 Matsushita Electric Industrial Co., Ltd. Transducer with flux sensing coils
GB2083974A (en) * 1980-09-04 1982-03-31 Rank Organisation The Ltd Moving coil loudspeaker
GB2196815A (en) * 1986-09-25 1988-05-05 David Robin Birt Motional feedback system for loudspeakers
US5541373A (en) * 1994-09-06 1996-07-30 Digisonix, Inc. Active exhaust silencer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5044464A (en) * 1990-01-23 1991-09-03 Nelson Industries, Inc. Active acoustic attenuation mixing chamber
US5319165A (en) * 1990-04-25 1994-06-07 Ford Motor Company Dual bandpass secondary source
US5229556A (en) * 1990-04-25 1993-07-20 Ford Motor Company Internal ported band pass enclosure for sound cancellation
US5748749A (en) * 1993-03-24 1998-05-05 Noise Cancellation Technologies, Inc. Active noise cancelling muffler

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014096A (en) * 1956-05-29 1961-12-19 Warner W Clements Sound reproducing means
US4243839A (en) * 1977-12-14 1981-01-06 Matsushita Electric Industrial Co., Ltd. Transducer with flux sensing coils
GB2083974A (en) * 1980-09-04 1982-03-31 Rank Organisation The Ltd Moving coil loudspeaker
GB2196815A (en) * 1986-09-25 1988-05-05 David Robin Birt Motional feedback system for loudspeakers
US5541373A (en) * 1994-09-06 1996-07-30 Digisonix, Inc. Active exhaust silencer

Also Published As

Publication number Publication date
EP1059830A2 (en) 2000-12-13
EP1055804B1 (en) 2003-03-12
EP1055804A1 (en) 2000-11-29
DE50001427D1 (en) 2003-04-17

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