EP2818654A1 - Système d'influence des bruits d'échappement dans une installation de gaz d'échappement à plusieurs flux - Google Patents

Système d'influence des bruits d'échappement dans une installation de gaz d'échappement à plusieurs flux Download PDF

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Publication number
EP2818654A1
EP2818654A1 EP14172186.0A EP14172186A EP2818654A1 EP 2818654 A1 EP2818654 A1 EP 2818654A1 EP 14172186 A EP14172186 A EP 14172186A EP 2818654 A1 EP2818654 A1 EP 2818654A1
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EP
European Patent Office
Prior art keywords
exhaust
vehicle
flow
exhaust system
exhaust gas
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
EP14172186.0A
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German (de)
English (en)
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EP2818654B1 (fr
Inventor
Michael Pommerer
Jürgen KOBE
Ralf Hölsch
Peter Wink
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
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Eberspaecher Exhaust Technology GmbH and Co KG
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    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/04—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more silencers in parallel, e.g. having interconnections for multi-cylinder engines
    • 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
    • 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
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel

Definitions

  • the invention relates to a system for influencing sound waves conducted in exhaust systems of vehicles powered by internal combustion engines (exhaust noise). More particularly, the present invention relates to a system for influencing sound waves carried in multi-flow exhaust systems.
  • Multi-flow exhaust systems are used to safely dissipate high volume flows of exhaust gas with low resistance.
  • High volumetric flows of exhaust gas occur in particular in high-performance internal combustion engines. It is typical for multi-flow exhaust systems that the exhaust gas coming from the internal combustion engine and exhaust gas routed in the exhaust system is output to the environment via at least two tailpipes of the exhaust system.
  • noises are generated as a result of the successive operating cycles (in particular suction and compression of a fuel-air mixture, working and expelling the combusted fuel-air mixture). These go through as a structure-borne noise the internal combustion engine and are radiated outside the internal combustion engine as airborne sound. On the other hand, the noise as airborne sound, together with the combusted fuel-air mixture, pass through an exhaust system in fluid communication with the internal combustion engine.
  • the noise passing through the internal combustion engine as structure-borne sound can be well insulated and therefore usually pose no problem in terms of noise protection. Due to the increasing use of internal combustion engines with small displacement or even electric motors, however, the problem arises that the noise of the engine for a User is often not appealing and / or does not fit the image of a manufacturer of the vehicle.
  • the an exhaust system of the internal combustion engine together with the combusted fuel-air mixture as airborne noise passing through are arranged in front of the mouth of the exhaust system arranged muffler, which are possibly downstream of existing catalysts.
  • Such silencers can work, for example, according to the absorption and / or reflection principle. Both modes of operation have in common the disadvantage that they require a comparatively large volume and set a relatively high resistance to the burned fuel-air mixture, as a result of which the overall efficiency of the vehicle decreases and fuel consumption increases.
  • Such antisound systems typically employ a so-called filtered-mean-time squares (FxLMS) algorithm which attempts to zero out an error signal measured by an error microphone by outputting sound through at least one speaker in fluid communication with the exhaust system (in the case of sound cancellation). or to control a predetermined threshold (in the case of sound interference).
  • FxLMS filtered-mean-time squares
  • the sound waves originating from the loudspeaker must correspond in amplitude and frequency to the sound waves carried in the exhaust system, but have a phase shift of 180 degrees relative thereto , although the sound waves of the airborne sound carried in the exhaust system and the sound waves of the anti-sounding generated by the loudspeaker are in frequency, and they have a phase shift of 180 degrees relative to one another, the sound waves do not correspond in amplitude but only to a weakening of the guided in the exhaust system sound waves of airborne sound.
  • the anti-noise is calculated separately by means of the FxLMS algorithm by determining an appropriate frequency and phase of two mutually shifted by 90 degrees sine waves, and the required amplitudes for these sine waves are calculated.
  • the aim of anti-sound systems is that the Sound suppression or sound influencing at least outside, but if necessary also within the exhaust system audible and measurable.
  • anti-noise is used in this document to distinguish the airborne sound carried in the exhaust system. By itself, Anti-Schall is ordinary airborne sound. It is emphasized that the present document is not limited to the use of a FxLMS algorithm.
  • the tailpipe 4 has an orifice 5 in order to discharge exhaust gas guided in the exhaust system 4 to the outside.
  • an error microphone 7 is provided in the form of a pressure sensor.
  • the error microphone 7 measures pressure fluctuations and thus sound inside the tailpipe 4 in a section downstream of a region in which the fluid connection between the exhaust system 6 and the sound generator 2 is provided.
  • the term "downstream" is based on the flow direction of the exhaust gas.
  • the flow direction of the exhaust gas is in FIG. 2 indicated by arrows.
  • the speaker 3 and the error microphone 7 are electrically connected to an (anti-noise) controller 8. Further, the controller 8 is connected via a CAN bus to a motor control 9 of an internal combustion engine 10.
  • the anti-noise controller 8 calculates a digital control signal using a Filtered-x Least Mean Square (FxLMS) algorithm for the loudspeaker 3 Erasure of the guided inside the exhaust system 6 sound by applying anti-noise allowed, and outputs this to the speaker 3.
  • FxLMS Filtered-x Least Mean Square
  • Embodiments relate to an anti-noise system for influencing exhaust noise conducted in a multi-flow exhaust system of a vehicle, which has a controller and at least one actuator.
  • the actuator is configured to receive a control signal and generate sound in response to the control signal.
  • the actuator may in particular be a loudspeaker and more particularly a voice coil loudspeaker.
  • the at least one actuator is arranged on a sound generator. There may be provided a plurality of sound generators, in each of which at least one actuator is arranged.
  • the at least one actuator is for example via optical or electrical lines for receiving control signals connected to the controller and adapted to generate a sound in the sound generator. Thus, sound is generated in the sound generator in response to the control signal received from the controller.
  • the sound generator can be connected to at least two exhaust gas lines of the multi-flow exhaust system of the vehicle at the same time.
  • the controller is designed and thus programmatically set up to generate a control signal which causes the at least one actuator arranged in the sound generator to extinguish sound in the interior of the at least two exhaust gas lines of the multi-flow exhaust system of the vehicle at least partially and preferably completely.
  • the sound generator is associated with at least two exhaust gas strands of the multi-flow exhaust system and acts on these via a fluid connection with sound. It is therefore not necessary in a multi-flow exhaust system to provide a separate sound generator with at least one actuator for each exhaust system. Accordingly, only one controller is required. As a result, space and costs are saved and the complexity of the structure is reduced.
  • a multiple-flow exhaust system is understood in this document to mean an exhaust system which has at least two tailpipes which are or can be brought into fluid communication with combustion chambers of an internal combustion engine.
  • the exhaust system may have exactly two tailpipes, or at least one pair of tailpipes, which may be in fluid communication with combustion chambers of an internal combustion engine.
  • the antisound system further comprises at least one error microphone, which is connected to the Control is connected.
  • the error microphone is designed to measure sound inside the exhaust system and to output a corresponding measurement signal to the controller, for example via optical or electrical lines.
  • the controller is designed to at least partially and preferably completely extinguish measurement signals obtained from the error microphone by outputting the control signal to the at least one actuator. This is done indirectly by the fact that the sound measured in the exhaust system, measured by the error microphone, is extinguished in its entirety or in part.
  • the at least one error microphone can be connected at the same time to at least two exhaust gas lines of the multi-flow exhaust system of the vehicle by means of an additional pipeline at a location of the exhaust system with respect to the exhaust gas flow in the region of a fluid connection between sound generator and exhaust system.
  • the error microphone is at the same time associated with at least two exhaust gas lines of the multi-flow exhaust system, so that only one control loop is required for both exhaust lines. This further reduces the complexity of the structure.
  • the error microphone is then placed on the remaining leg of the T-piece or Y-piece.
  • At least one error microphone is provided for each exhaust system of the exhaust system, which is located at a relative to the exhaust gas flow in the Area of a fluid connection between the sound generator and exhaust system location of the exhaust system with only the associated exhaust line of the multi-flow exhaust system of the vehicle is connectable.
  • a separate error microphone can be provided for each exhaust system.
  • the measured values of these error microphones are averaged and a measurement signal corresponding to the mean value is output to the controller. In this way, even in the presence of multiple error microphones, only one loop can be provided.
  • the controller is connectable to an engine controller of an internal combustion engine of the vehicle and configured (and thus programmatically configured) to generate the digital control signal in response to signals received from the engine controller.
  • These signals received by the engine control may be, for example, a rotational speed and / or a torque of the internal combustion engine.
  • the system has exactly one actuator and correspondingly exactly one sound generator.
  • the system has exactly one error microphone.
  • the system has exactly one control.
  • the sound generator has a double-D tube, wherein both D-tubes of the double-D tube are in fluid communication with a common internal volume of the sound generator at the same time, and in each case a D-tube of the double-D tube with exactly an exhaust line of the multi-flow exhaust system of the vehicle is connectable.
  • Double-D pipes are two tubes each with a semicircular cross-section, which are stacked with their flat sides and are connected to one another at the longitudinal edges, for example by means of a weld seam.
  • the sound generator has a Y-piece, wherein one arm of the Y-piece is in fluid communication with an inner volume of the sound generator and one arm of the Y-piece can be connected to exactly one exhaust line of the multi-flow exhaust system of the vehicle.
  • the sound generator has a pre-volume into which several connection pipes simultaneously open, wherein in each case one of these connection pipes can be connected to exactly one associated exhaust gas line of the multi-flow exhaust system of the vehicle.
  • the sound generator is a loudspeaker housing which accommodates at least one loudspeaker. According to an alternative embodiment, the sound generator is a loudspeaker.
  • the sound generator has an internal volume which can be brought into fluid communication with at least two exhaust gas lines of the multi-flow exhaust system of the vehicle at the same time.
  • Embodiments of a multi-flow exhaust system for a vehicle have at least two exhaust lines and in particular at least one pair of exhaust lines and more particularly exactly two exhaust lines and an anti-noise system as described above.
  • the at least two exhaust gas trains are connectable to an internal combustion engine of the vehicle and configured to guide exhaust gas emitted from the internal combustion engine of the vehicle.
  • the at least two exhaust strands have in each case an end pipe, via which exhaust gas conducted in the respective exhaust gas line is output to the outside of the exhaust system.
  • the sound generator is simultaneously connected to the at least two exhaust gas lines of the multi-flow exhaust system of the vehicle.
  • the anti-ballast system of the multi-flow exhaust system has at least one error microphone, which is connected at a location of a fluid connection between the sound generator and exhaust system point of the exhaust system via an additional pipeline simultaneously with at least two exhaust lines of the multi-flow exhaust system of the vehicle is.
  • the anti-noise system of the multi-flow exhaust system for each exhaust system of the exhaust system has at least one error microphone provided, which at a location of the exhaust flow in the region of a fluid connection between sound generator and exhaust system point of the exhaust system with only the one associated exhaust line of Moflumble exhaust system of the vehicle is connected.
  • the length of each of the at least two exhaust lines of the multi-flow exhaust system between the internal combustion engine and the point along the respective exhaust line, at which the sound generator is connected to the respective exhaust line the same size.
  • length deviations of less than 10% and in particular less than 5% and more particularly less than 3% are permitted.
  • the length of a respective connecting line between the respective exhaust system and the sound generator is the same size. Rather, length deviations of less than 10% and in particular less than 5% and more particularly less than 3% are permitted. This will prevent it due to different Line lengths to runtime differences of the guided in the exhaust gas lines sound comes.
  • This common volume ensures that the phase of the sound waves guided in the at least two exhaust gas strands are substantially equal.
  • this common volume may be provided in the region of a turbocharger.
  • the at least two exhaust gas strands have a common volume upstream of the combustion engine upstream of the combustion engine with respect to the flow direction of the exhaust gas carried in the exhaust gas strands, and the sound generator is arranged in the area of the common volume and thus simultaneously with the at least two exhaust gas strands of the multi-flow exhaust gas system connected to the vehicle.
  • this common volume may be provided in the region of a turbocharger.
  • the sound generator does not have to be arranged in the common volume. Rather, it is sufficient if the sound generator with this common volume in fluid connection / fluid connection.
  • the pre-muffler or the exhaust gas purification system is only flowed through by exhaust gas guided in the associated exhaust gas system.
  • Embodiments of a motor vehicle include an internal combustion engine with an engine control and a multi-flow exhaust system as described above.
  • the multi-flow exhaust system is in fluid communication with the internal combustion engine and in particular with combustion chambers of the internal combustion engine.
  • the control of the anti-noise system of the multi-flow exhaust system is connected to the engine control of the internal combustion engine of the vehicle.
  • Embodiments of a method of controlling an anti-noise system to affect exhaust noise conducted in a multi-flow exhaust system of a vehicle include the steps of receiving an operating parameter (such as a speed and / or torque) from an engine controller of the vehicle. Additionally or alternatively, sound can be measured inside the exhaust system. Subsequently, a control signal is calculated on the basis of the operating parameter and / or the measured sound, which control signal is suitable for at least partially and preferably completely extinguishing the amount of airborne sound produced by an internal combustion engine in at least two exhaust gas lines of the multi-flow exhaust system.
  • an operating parameter such as a speed and / or torque
  • sound can be measured inside the exhaust system.
  • a control signal is calculated on the basis of the operating parameter and / or the measured sound, which control signal is suitable for at least partially and preferably completely extinguishing the amount of airborne sound produced by an internal combustion engine in at least two exhaust gas lines of the multi-flow exhaust system.
  • the antisound system may be, for example, the antisound system described above.
  • Embodiments of using an antisound system to affect exhaust noise conducted in a multi-flow exhaust system of a vehicle include the steps of: providing an antisound system as described above; and connecting the sound generator with at least two exhaust lines of the multi-flow exhaust system of a vehicle.
  • the sound generator is used so that it is simultaneously in fluid communication with at least two exhaust lines.
  • the exhaust gas produced by an internal combustion engine 100 is first collected and drives a turbocharger 110. Subsequently, the exhaust gas is guided separately along two exhaust gas lines 60, 61 through two catalytic converters 62, 63 and two pre-silencers 64, 65, and finally via openings 50, 51 of tail pipes 40, 41 to the environment.
  • the flow direction of the exhaust gas is indicated by arrows.
  • turbocharger 110 the catalytic converters 62, 63 and the pre-silencers 64, 65 are only optional. Alternatively or additionally, other elements for exhaust gas purification and soundproofing may be provided. It is further emphasized that more than one pair of exhaust strands may also be present.
  • the anti-noise system has a sound generator 20 in which a loudspeaker is arranged.
  • the sound generator 20 is connected via connecting lines 21 with two exhaust gas lines 60, 61 in the vicinity of the tail pipes 50, 51 in fluid connection.
  • the length of the two exhaust gas lines 60, 61 between the engine 100 and the location of the respective exhaust line 60, 61, to which the sound generator 20 is connected to the respective exhaust line 60, 61 the same size. However, this is not mandatory.
  • Error microphone 70 which measures pressure fluctuations and thus sound inside the exhaust line 60.
  • Each exhaust line 60, 61 has an error microphone 70, 71, which measures pressure fluctuations and thus sound in the interior of the associated exhaust line 60, 61.
  • only one error microphone 72 is provided, which is simultaneously in fluid connection via a T-shaped hose connection 73 with two exhaust gas lines 60, 61 and measures pressure fluctuations and thus sound in the interior of both exhaust gas lines 60, 61.
  • the loudspeakers of the sound generators 20 and the error microphones 70, 71, 72 are connected via control lines to an anti-noise control 80.
  • the antisound controller 80 is further connected via a CAN bus to an engine control 90 of the internal combustion engine 100, and receives from the engine controller 90 current operating parameters of the internal combustion engine 100, in particular the rotational speed and the torque.
  • a CAN bus instead of the CAN bus, another vehicle bus, in particular a LIN bus, MOST bus or Flexray bus can be used.
  • the antisound controller 80 which in the present case is a microprocessor equipped with a program, is designed based on the operating parameters of the internal combustion engine received from the engine control unit 90 and an error signal (measurement signal) received from the error microphones 70, 71, 72 using a filtered -x least mean squares (FxLMS) algorithm to generate a control signal which is suitable to operate the loudspeaker of the sound generator 20 so that in the Exhaust pipes 60, 61 guided sound is extinguished in terms of amounts at least partially.
  • FxLMS filtered -x least mean squares
  • connection of the sound generator 20 to the two exhaust gas lines 60, 61 in each of the embodiments described above can be done in different ways.
  • the base or the foot of each Y-shaped claw 66, 67 with an associated tailpipe 50, 51 and an arm of the Y-shaped claw with a line of the respective exhaust line 60, 61 is connected.
  • the remaining arm of the Y-shaped claw 66, 67 is in fluid communication with the respective sound generator 21, 23, 25. Since the arms of the Y-shaped claw 66, 67 form an acute angle with each other, the pressure of the exhaust gas carried in the exhaust lines 60, 61 is prevented from acting on the loudspeaker of the associated sound generator 21, 23, 25.
  • the fluid connection of the sound generator 21 via a T-shaped connector 22 the two arms are connected to the arms of the Y-shaped collecting pieces 66, 67 and whose base is connected to the sound generator 21.
  • the fluid connection of the sound generator 23 via a Y-shaped connector piece 24 the two arms are connected to the arms of the Y-shaped collecting pieces 66, 67 and whose base is connected to the sound generator 23.
  • the sound generator 25 has a pre-volume into which the two arms of the Y-shaped collectors 66, 67 open.
  • the tailpipes 50, 51 are connected via Y-shaped collectors 68, 69 to the respective associated exhaust strands 60, 61 and is the base or the foot of each Y-shaped claw 68, 69 with an associated tailpipe 50, 51 and an arm of the Y-shaped claw 68, 69 connected to a line of the respective exhaust line 60, 61.
  • the remaining arms of the Y-shaped collecting pieces 68, 69 are formed in the region of a connection of the sound generator 27 as a double-D tube.
  • the remaining arms of the Y-shaped collectors 68, 69 in the region of the connection of the sound generator 27 each have a semicircular cross-section, wherein the flat sides are superimposed and interconnected by means of a weld.
  • an error microphone may be provided which is arranged along the exhaust gas flow downstream of the region in which the fluid connection of the respective sound generator 21, 23, 25, 27 to the exhaust gas lines 60, 61 takes place, and which is assigned to one of the two exhaust gas lines 60, 61, or It can be provided two error microphones, which each one of the two exhaust lines 60, 61 assigned and are arranged along the exhaust gas flow downstream of the region in which the fluid connection of the respective sound generator 21, 23, 25, 27 to the exhaust gas lines 60, 61, or An error microphone may be provided, which is assigned to both exhaust lines 60, 61 at the same time, and is connected to these via a fluid connection, which is arranged along the exhaust gas flow downstream of the region in which the fluid connection of the respective sound generator 21, 23, 25 , 27 to the exhaust lines 60, 61 takes place.
  • volume 110 'in fluid communication which volume 110' two exhaust strands 60, 61 is common.
  • This volume 110 ' is located downstream of the internal combustion engine 100 and upstream of the tailpipes 50, 51 along the exhaust gas carried in the exhaust lines 60, 61.
  • the volume 110 ' is downstream of a turbocharger, not shown.
  • an error microphone 74 is provided, which is in fluid connection with respect to the exhaust gas flow downstream of the region of the fluid connection of the sound generator 29 to the volume 110 'with the volume 110' and is connected to the controller 80.
  • FIG. 5 schematically a motor vehicle is shown, which in addition to an internal combustion engine 100, the above-described anti-noise system with the multi-flow exhaust system (of which in FIG. 5 only the exhaust line 60 is shown) and the anti-noise controller 80 receives.
  • the sound generator with the speaker is in FIG. 5 not shown separately.

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  • 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)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP14172186.0A 2013-06-25 2014-06-12 Système d'influence des bruits d'échappement dans une installation de gaz d'échappement à plusieurs flux Revoked EP2818654B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013010609.5A DE102013010609B4 (de) 2013-06-25 2013-06-25 System zur Beeinflussung von Abgasgeräuschen in einer mehrflutigen Abgasanlage und Kraftfahrzeug

Publications (2)

Publication Number Publication Date
EP2818654A1 true EP2818654A1 (fr) 2014-12-31
EP2818654B1 EP2818654B1 (fr) 2016-10-05

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EP14172186.0A Revoked EP2818654B1 (fr) 2013-06-25 2014-06-12 Système d'influence des bruits d'échappement dans une installation de gaz d'échappement à plusieurs flux

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Country Link
US (1) US9706295B2 (fr)
EP (1) EP2818654B1 (fr)
JP (1) JP5893679B2 (fr)
CN (1) CN104251150B (fr)
DE (1) DE102013010609B4 (fr)

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GB2524390B (en) * 2014-02-13 2018-10-31 Tenneco Gmbh Sound generator system for a motor vehicle
WO2018229371A1 (fr) * 2017-06-14 2018-12-20 Psa Automobiles Sa Ligne d'echappement de gaz de combustion avec haut-parleur
WO2019042556A1 (fr) 2017-08-31 2019-03-07 Faurecia Emissions Control Technologies, Germany Gmbh Système d'échappement et vehicule à moteur équipé d'un système d'échappement

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TWI392818B (zh) * 2009-09-07 2013-04-11 Efun Technology Co Ltd Vacuum mechanical introduction device
DE102012200712B4 (de) * 2012-01-19 2015-07-09 Eberspächer Exhaust Technology GmbH & Co. KG Abgasvorrichtung für eine Brennkraftmaschine
FR3023645B1 (fr) * 2014-07-10 2020-02-28 Centre National De La Recherche Scientifique Dispositif et methode d'attenuation du son
DE102017103636A1 (de) * 2016-04-06 2017-10-12 Eberspächer Exhaust Technology GmbH & Co. KG System und verfahren zur aktiven schallbeeinflussung
DE102017103657A1 (de) * 2016-04-06 2017-10-12 Eberspächer Exhaust Technology GmbH & Co. KG System und Verfahren zur aktiven Schallbeeinflussung
DE102017109372A1 (de) * 2017-05-02 2018-11-08 Faurecia Emissions Control Technologies, Germany Gmbh Kraftfahrzeug-Schallgebersystem
CN109899132A (zh) * 2017-12-11 2019-06-18 郑州宇通客车股份有限公司 排气管后处理器及车辆
US10358956B1 (en) * 2018-07-09 2019-07-23 Faurecia Emissions Control Technologies, Usa, Llc Exhaust valve and active noise control for compact exhaust system
CN109785822B (zh) * 2019-01-22 2023-03-14 上海朴渡信息科技有限公司 一种防护服用消音器结构
US11713700B2 (en) 2020-07-24 2023-08-01 Mike's Pipes, Inc. Method and apparatus for converting a vehicle from a dual-in, single-out exhaust system to a dual-in, dual-out exhaust system

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US5432857A (en) 1990-04-25 1995-07-11 Ford Motor Company Dual bandpass secondary source
EP0481450A1 (fr) * 1990-10-19 1992-04-22 HEINRICH GILLET GmbH & CO. KG Dispositif de silencieux pour moteur à combustion interne
US5619020A (en) 1991-08-29 1997-04-08 Noise Cancellation Technologies, Inc. Muffler
US5343533A (en) 1992-04-06 1994-08-30 Ford Motor Company Transducer flux optimization
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EP0674097A1 (fr) 1994-02-22 1995-09-27 ELECTRONIC SOUND ATTENUATION S.p.A. Silencieux actif de gaz d'échappement
US5600106A (en) 1994-05-24 1997-02-04 Noise Cancellation Technologies, Inc. Actively sound reduced muffler having a venturi effect configuration
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EP0916817A2 (fr) 1997-11-18 1999-05-19 LEISTRITZ AG & CO. Abgastechnik Silencieux actif
DE19751596A1 (de) 1997-11-21 1999-06-02 Leistritz Abgastech Aktiver Schalldämpfer
EP1055804A1 (fr) 1999-05-19 2000-11-29 LEISTRITZ AG & CO. Abgastechnik Amortisseur actif de bruit de gaz d'échappement
DE10085230B3 (de) * 1999-11-25 2012-03-01 Faurecia Systemes D'echappement Vorrichtung zur aktiven Verringerung des Geräusches eines Motors mit wenigstens zwei Auspuff-Auslässen
EP1627996A1 (fr) 2004-08-19 2006-02-22 J. Eberspächer GmbH & Co. KG Silencieux d'échappement actif
DE102006042224B3 (de) 2006-09-06 2008-01-17 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer für eine Abgasanlage
DE102008018085A1 (de) 2008-04-09 2009-10-15 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer
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GB2524390B (en) * 2014-02-13 2018-10-31 Tenneco Gmbh Sound generator system for a motor vehicle
WO2018229371A1 (fr) * 2017-06-14 2018-12-20 Psa Automobiles Sa Ligne d'echappement de gaz de combustion avec haut-parleur
FR3067752A1 (fr) * 2017-06-14 2018-12-21 Peugeot Citroen Automobiles Sa Ligne d’echappement de gaz de combustion avec haut-parleur
WO2019042556A1 (fr) 2017-08-31 2019-03-07 Faurecia Emissions Control Technologies, Germany Gmbh Système d'échappement et vehicule à moteur équipé d'un système d'échappement

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JP5893679B2 (ja) 2016-03-23
US9706295B2 (en) 2017-07-11
US20140376733A1 (en) 2014-12-25
DE102013010609B4 (de) 2023-07-27
EP2818654B1 (fr) 2016-10-05
JP2015007424A (ja) 2015-01-15
DE102013010609A1 (de) 2015-01-08
CN104251150B (zh) 2017-04-12
CN104251150A (zh) 2014-12-31

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