EP3001411A1 - Protection contre les surcharges pour un acteur d'un systeme destine a influencer un bruit transporte dans une installation de gaz d'echappement - Google Patents

Protection contre les surcharges pour un acteur d'un systeme destine a influencer un bruit transporte dans une installation de gaz d'echappement Download PDF

Info

Publication number
EP3001411A1
EP3001411A1 EP15178023.6A EP15178023A EP3001411A1 EP 3001411 A1 EP3001411 A1 EP 3001411A1 EP 15178023 A EP15178023 A EP 15178023A EP 3001411 A1 EP3001411 A1 EP 3001411A1
Authority
EP
European Patent Office
Prior art keywords
controller
actuator
control signal
output
exhaust system
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
EP15178023.6A
Other languages
German (de)
English (en)
Other versions
EP3001411B1 (fr
Inventor
Ralf Hölsch
Michael Pommerer
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
Eberspaecher Exhaust Technology 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 Eberspaecher Exhaust Technology GmbH and Co KG filed Critical Eberspaecher Exhaust Technology GmbH and Co KG
Publication of EP3001411A1 publication Critical patent/EP3001411A1/fr
Application granted granted Critical
Publication of EP3001411B1 publication Critical patent/EP3001411B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • G10K11/1781—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17821—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
    • 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
    • G10K11/1781—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17821—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
    • G10K11/17825—Error signals
    • 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
    • G10K11/1783—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 handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
    • G10K11/17833—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 handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions by using a self-diagnostic function or a malfunction prevention function, e.g. detecting abnormal output levels
    • 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
    • G10K11/1783—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 handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
    • G10K11/17833—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 handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions by using a self-diagnostic function or a malfunction prevention function, e.g. detecting abnormal output levels
    • G10K11/17835—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 handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions by using a self-diagnostic function or a malfunction prevention function, e.g. detecting abnormal output levels using detection of abnormal input signals
    • 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
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/028—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting humidity or water
    • 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
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves
    • 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
    • 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
    • G10K2210/50—Miscellaneous
    • G10K2210/503—Diagnostics; Stability; Alarms; Failsafe
    • 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
    • G10K2210/50—Miscellaneous
    • G10K2210/51—Improving tonal quality, e.g. mimicking sports cars

Definitions

  • the invention relates to a protection of an actuator of a system for influencing sound guided in an exhaust system of an internal combustion engine-operated vehicle against mechanical overload.
  • Exhaust systems for internal combustion engines are conventionally constructed of passive components, which are flowed through in all operating situations in total of exhaust gas and together form the exhaust system.
  • these components may be, for example, a turbocharger, a catalytic converter or a silencer.
  • exhaust systems have begun to supplement systems for actively influencing exhaust noise conducted in the exhaust system and attributable to operation of an internal combustion engine.
  • Such systems characterize the exhaust noise in the exhaust system, generated by the internal combustion engine a characteristic noise, which match the image of each manufacturer and should appeal to customers.
  • the guided in the exhaust system sound waves that are due to the operation of the internal combustion engine (exhaust noise), superimposed on the interior of the exhaust system artificially generated sound waves.
  • a sound generator which is in fluid communication with the exhaust system and thus radiates sound into the interior of the exhaust system. This artificially generated sound and the sound generated by the internal combustion engine are superimposed and exit together through a tailpipe of the exhaust system.
  • Such systems can also be used for soundproofing.
  • 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.
  • the actuators for example, immersion coil loudspeakers
  • the actuators are sensitive to mechanical overload. Due to the high sound pressure to be provided by the actuators, the actuators are already subjected to high mechanical stress during normal operation. This is reinforced by the fact that in addition the exhaust gas guided in the exhaust system presses on the actuators. Normally, the exhaust gas guided in the exhaust system is discharged via the mouth of the tailpipe, so that the pressure acting on the actuators due to the exhaust gas carried in the exhaust system is not too high.
  • the actuators can be permanently damaged and thus destroyed. Further, the actuators used to generate the sound in the sound generator are sensitive to thermal overload, which is not the subject of the present application.
  • Embodiments of a system for actively influencing sound conducted in an exhaust system include a controller, at least one sound generator and at least one actuator.
  • the sound generator is adapted to be brought into fluid communication with the exhaust system.
  • the at least one actuator is arranged in the at least one sound generator and connected to the controller for receiving control signals.
  • one or more than one actuator may be arranged.
  • the at least one actuator is designed as a function of a control signal received by the controller for generating sound in the sound generator.
  • the controller is designed to generate a control signal and output to the at least one actuator.
  • the control signal is suitable for at least partially or completely extinguishing the sound conducted in the interior of the exhaust system when the at least one actuator is operated with the control signal.
  • the system further comprises an error microphone, which is connected to the controller and can be arranged on a location of the exhaust system relative to the exhaust gas flow in the region of the fluid connection between the sound generator and the exhaust system.
  • location in the area of the fluid connection between the sound generator and the exhaust system means that the point at which the fluid connection takes place and the sound is at least partially canceled by the error microphone with respect to the flow direction of the exhaust gas upstream by no more than ten times and in particular not more than five times and more particularly not more than twice the maximum diameter of the exhaust system at the Location at which the sound is measured by the error microphone, is spaced along the flow direction of the exhaust gas.
  • the error microphone is designed to measure sound in the exhaust system and to output a corresponding measured value to the controller.
  • the controller is then further configured to interrupt a generation of the control signal and / or to interrupt an output of the control signal to the at least one actuator and / or to reduce a level of the control signal output to the at least one actuator by at least 30% or at least 60% if a mean value formed over a period of at least 0.2 seconds over the measured values output by the error microphone is at least 5% or at least 10% above a predetermined sound threshold value.
  • Increased exhaust gas pressure causes the signal output by the error microphone to change in such a manner that the mean of the readings is increased over a period of at least 0.2 seconds over the average of the readings over a period of at least 0.2 seconds at normal pressure.
  • the exhaust gas pressure has changed solely by using the error microphones, which are often present anyway, and thus without additional components.
  • This makes it possible to make a generation and output of the control signal to the at least one actuator in dependence on the exhaust gas pressure. In this way, a mechanical overload of the actuator at high exhaust pressure, for example, be avoided by dispensing with an additional mechanical load by acting on the control signal or a level of the control signal is reduced.
  • the system further comprises a temperature sensor, which is connected to the controller and can be arranged in the exhaust system.
  • the temperature sensor is designed to measure the temperature of the exhaust gas carried in the exhaust system and to output a corresponding measured value to the controller.
  • the controller is then further configured to interrupt a generation of the control signal and / or to interrupt an output of the control signal to the at least one actuator and / or a level of the control signal output to the at least one actuator (20) by at least 30% or at least 60 % to reduce if that of the Temperature sensor measured temperature of the exhaust gas in the exhaust system by more than 10 ° C per second or by more than 20 ° C per second increases or decreases.
  • the temperature in the exhaust system increases abruptly when the outflow of the exhaust gas is prevented or only changed. In this way, it is possible to conclude a changed exhaust gas pressure alone by using the frequently existing temperature sensor and thus without additional components.
  • This makes it possible to make a generation and output of the control signal to the at least one actuator in dependence on the exhaust gas pressure. In this way, a mechanical overload of the actuator at high exhaust pressure, for example, be avoided by dispensing with an additional mechanical load by acting on the control signal or a level of the control signal is reduced.
  • the temperature drops abruptly in the exhaust system when (for example when crossing a riverbed) water flows into the exhaust system.
  • a mechanical load of the actuator can be reduced by dispensing with an abrupt drop in the temperature in the exhaust line to an additional mechanical load on the actuator by acting on the control signal or a level of the control signal is reduced.
  • the system further includes an impedance measuring bridge connected to the controller and an actuator.
  • the impedance measuring bridge is designed to determine the electrical impedance of the at least one actuator and to output a corresponding measured value to the controller.
  • the impedance measuring bridge can also be integrated into the controller, ie the impedance measuring bridge and the controller can be different elements or a single integrated element.
  • the controller is then further configured to interrupt a generation of the control signal and / or to interrupt an output of the control signal to the at least one actuator and / or to reduce a level of the control signal output to the at least one actuator by at least 30% or at least 60% if the impedance of the actuator determined by the impedance measuring bridge deviates by more than 5% or by more than 10% from a predetermined impedance threshold.
  • the impedance may be the electrical impedance act of the actuator or the acoustic impedance of the actuator.
  • the electrical impedance can be measured directly by a separate impedance measuring bridge or an impedance measuring bridge integrated into the control.
  • the acoustic impedance can be determined by the controller, for example, by comparing the control signals output to the at least one actuator with signals measured by an error microphone.
  • the impedance threshold of the impedance can be determined empirically. In this case, different impedance threshold values can be determined for different operating states of the exhaust gas system with exhaust gas acting on the exhaust system.
  • the impedance of an actuator depends on the radiation conditions of the actuator.
  • the emission conditions change when the exhaust system is clogged.
  • a change in impedance may be determined by the controller or a separate or integrated impedance bridge. In this way it can be determined without additional components that the exhaust system is completely or partially blocked, which suggests an increased exhaust pressure.
  • This makes it possible to make a generation and output of the control signal to the at least one actuator in dependence on the exhaust gas pressure. In this way, a mechanical overload of the actuator at high exhaust pressure, for example, be avoided by dispensing with an additional mechanical load by acting on the control signal or a level of the control signal is reduced.
  • the system further comprises a bus system, which is connected to the controller and connectable to an engine controller of an internal combustion engine.
  • the bus system is configured to receive a speed value output by the engine control unit and / or a torque value of the internal combustion engine and to output it to the controller.
  • the controller is then further configured to interrupt a generation of the control signal and / or to interrupt an output of the control signal to the at least one actuator and / or to reduce a level of the control signal output to the at least one actuator by at least 30% or at least 60% when the speed received by the controller via the bus system and the torque of the internal combustion engine a Overshoot a given exhaust backpressure threshold by the currently existing in the exhaust system exhaust back pressure by more than 10% or more than 30% detect. From the speed and the torque, a mass flow can be derived, for which a specific exhaust back pressure can be stored in the controller for a respective exhaust system.
  • the bus system may be an interface for a bus system.
  • the engine codes of an internal combustion engine and in particular the speed and the torque change with a modified exhaust back pressure in a characteristic manner.
  • This change can be detected by the controller.
  • a mathematical model of the exhaust system and the internal combustion engine can be used. This mathematical model can be determined empirically. In this way, it is possible to conclude an altered exhaust gas pressure without additional components.
  • the system further comprises a water meter, which can be connected to the controller and mounted in the region of an end pipe of the exhaust system.
  • the water meter is designed to detect a dipping of the tailpipe in water and to output a corresponding signal to the controller.
  • Such water meters are also referred to as flooding detectors and consist in the simplest case of two exposed contacts, between which an electrical resistance is measured.
  • the controller is then further configured to interrupt a generation of the control signal and / or to interrupt an output of the control signal to the at least one actuator and / or to reduce a level of the control signal output to the at least one actuator by at least 30% or at least 60% when the signal emitted by the water meter indicates that the tailpipe of the exhaust system is submerged in water.
  • the immersion of a tailpipe of an exhaust system into water is an operating state that occurs, for example, in the case of a water passage of a vehicle or as part of a slippage of watercraft with the aid of a vehicle, which leads to a significantly increasing exhaust backpressure in the exhaust system of the vehicle.
  • This operating condition can be reliably detected by means of the water meter.
  • a mechanical overload of the actuator for example, be avoided by dispense with an additional mechanical stress by acting on the control signal or a level of the control signal is reduced.
  • the controller is designed to reduce the level of the control signal output to the at least one actuator by changing the amplitude and / or frequency. This is easily possible by means of the controller, since the controller must anyway determine the control signal suitable for a respective operating state for the at least one actuator. When the frequency changes, the noise emitted at the tailpipe changes considerably. This helps to alert a user to the increased exhaust back pressure and thus the possibly clogged exhaust system.
  • control signal output by the controller to the at least one actuator is often composed by the control of a plurality of sinusoidal oscillations, it is additionally or alternatively also possible to change the level of the control signal output to the at least one actuator by changing the phases of the individual sinusoidal oscillations the control signal is formed to reduce. This is easily possible by means of the controller, since the controller must anyway determine the control signal suitable for a respective operating state for the at least one actuator.
  • the water meter and / or the temperature sensor are not directly connected to the controller, but indirectly via a bus system which connects the controller with an engine controller of an internal combustion engine.
  • the signal output by the water meter or temperature sensor can also be used by other components of a vehicle.
  • the actuator is a voice coil loudspeaker.
  • the sound generator is a two-shell housing made of sheet metal.
  • the voice coil loudspeaker is carried by a horn arranged in a sound generator in the form of a clam shell made of sheet metal.
  • Embodiments of a motor vehicle include an internal combustion engine having an engine controller, an intake system and an exhaust system in fluid communication with the internal combustion engine, and a system as described above.
  • the at least one sound generator of the system is in fluid communication with the exhaust system.
  • the control of the system is connected to the engine control of the internal combustion engine of the motor vehicle, for example via a bus system.
  • FIG. 3 describes an embodiment of a system 70 for actively influencing sound conducted in an exhaust system 40.
  • an internal combustion engine 60 is connected to an intake system 60 ", via which fresh air is drawn in and mixed with fuel, and to an exhaust system 40, via which exhaust gas produced in the internal combustion engine 60 is discharged shown only schematically.
  • the intake system 60 " may have filters
  • the exhaust system 40 may in particular also comprise active or passive silencers and catalysts as well as filters FIG. 3 represented by arrows.
  • the operation of the internal combustion engine 60 is controlled and monitored by a motor controller 60 '. Even if the engine control 60 'in FIG. 3 is arranged directly on the internal combustion engine 60, this is not absolutely necessary. Rather, it may be useful for thermal reasons, the engine control 60 'spaced from the engine 60 to arrange.
  • a sound generator 30 is connected to the exhaust system 40.
  • the sound generator is a largely water-tight and airtight two-shell housing made of sheet metal, in which an actuator is arranged in the form of a Tauchspulenlaut Maschineners 20.
  • the term "largely water- and airtight" does not exclude the presence of a pressure compensation valve, which allows a throttle comparable to a slow adjustment of an internal pressure of the sound generator to an ambient pressure.
  • the voice coil loudspeaker 20 is connected via a control line to a control 70 of the system 70 in the form of a microprocessor 90.
  • an error microphone 50 is further arranged, which is connected via a hose to the exhaust system 40.
  • the error microphone 50 measures sound in the tailpipe 10 and outputs a corresponding reading to the microprocessor 90.
  • a temperature sensor 51 is connected, which measures the temperature of the exhaust gas guided in the exhaust system 40 and outputs a corresponding measured value to the microprocessor 90 via a control line.
  • a water meter 54 is arranged, which is also connected via a control line to the microprocessor 90.
  • the water meter 54 detects immersion of the tailpipe 80 in water and outputs a corresponding signal to the microprocessor 90.
  • an impedance measuring bridge 52 which determines an electrical impedance of the voice coil loudspeaker 20, is integrated in the microprocessor 90. It is emphasized that the impedance measuring bridge 52 can alternatively also be designed as a separate component from the microprocessor 90.
  • the microprocessor 90 has a power supply, which in the FIG. 3 VBatt, and the microprocessor 90 is connected to the motor controller 60 'via a CAN bus 53 and thus capable of exchanging data with the motor controller 60' via the CAN bus 53.
  • the microprocessor 90 receives a current speed value and an associated torque value from the engine controller 60 'for a respective operating state of the engine 60.
  • a CAN bus 54 is described above for the communication between the microprocessor 90 and the motor controller 60 ', the invention is not limited to any particular type of bus. Rather, any type of data bus that allows the described data exchange can be used.
  • microprocessor 90 and the motor controller 60 ' are separate elements, the invention is not limited thereto. Alternatively, it is possible to integrate the microprocessor 90 into the motor controller 60 '; then it is also possible to dispense with a bus system between microprocessor 90 and motor control 60 '.
  • the microprocessor 90 In response to a speed value and torque value to the engine 60 received via the CAN bus 53 from the engine controller 60 ', the microprocessor 90 generates a control signal using a Filtered-x Least Mean Square (FxLMS) algorithm and outputs it to the voice coil loudspeaker 20.
  • the control signal is suitable for partially extinguishing the sound conducted in the interior of the exhaust system 40 in the region of the tailpipe 10, by the voice coil loudspeaker 20 generating sound in response to the control signal.
  • the sound generated by the voice coil loudspeaker 20 is coupled via the fluid connection between the sound generator 30 in the tailpipe 10 of the exhaust system 40, and there superimposed on the sound generated by the engine 60, which passes through the exhaust system 40 together with the exhaust gas.
  • the microprocessor 90 is also able to use the integrated impedance measuring bridge 52 to determine a respective current electrical impedance of the voice coil loudspeaker 20. If the microprocessor 90 determines that the measured electrical impedance deviates by more than 5% from an impedance threshold that depends on the respective voice coil loudspeaker 20 used, the microprocessor 90 automatically stops outputting the control signal to the voice coil loudspeaker 20 and deactivates it the voice coil loudspeaker 20.
  • the microprocessor 90 is capable of using the received via the CAN bus 53 speed and torque values of the engine 60 based on a mathematical model of the engine 60 and the exhaust system 40 to determine a respectively resulting exhaust back pressure. If the exhaust back pressure calculated in this way differs by more than 10% from a normal exhaust gas backpressure threshold, which is determined empirically for the respective rotational speed of the internal combustion engine 60, the microprocessor 90 is also capable of outputting an output signal of the control signal Diving coil speaker 20 to stop.
  • This output of the control signal to the voice coil loudspeaker 20 is also automatically stopped by the microprocessor 90 when the signal output from the water meter 54 indicates that the exhaust port 80 of the end straw 10 is submerged in water.
  • the error microphone 50 serves, on the one hand, to detect the sound event resulting from the superposition of the noise generated by the voice coil loudspeaker 20 with the exhaust noise carried in the exhaust system 40 and to output it to the microprocessor 90.
  • the microprocessor 90 uses this error reported back from the error microphone 50 in the generation of the control signal for the voice coil loudspeaker 20.
  • the microprocessor 90 determines a respective acoustic impedance of the voice coil loudspeaker 20, since the error microphone 50 also detects the noise of the voice coil loudspeaker 20 as a result of a respective control signal. This is possible because the noise generated by the engine 60 is empirically known for a particular speed and torque and exhaust system. If it is detected by the microprocessor 90 that the thus determined acoustic impedance deviates by more than 5% from a predetermined impedance threshold value, an output of the control signal to the voice coil loudspeaker 20 is also stopped.
  • the predetermined impedance threshold may also be determined empirically.
  • microprocessor 90 is capable of suppressing the output of the control signal to the voice coil loudspeaker 20 when the temperature sensor 51 indicates an increase or decrease in the measured temperature of the exhaust gas in the exhaust system 40 by more than 20 ° C per second.
  • the microprocessor 90 is configured to interrupt the output of the control signal to the voice coil loudspeaker 20 when a mean value formed over a period of 0.3 seconds exceeds the measurements received from the error microphone 50 by more than 5% above an empirically determined sound level. Threshold is.
  • the microprocessor 90 merely interrupts the output of the control signal to the voice coil loudspeaker 20, it is of course possible to interrupt already the generation of the control signal. Furthermore, it is alternatively possible not to interrupt the generation and output of the control signal to the voice coil loudspeaker 20, but to manipulate the control signal itself such that the deflection of a diaphragm of the voice coil loudspeaker 20 occurring in the voice coil loudspeaker 20 as a result of the received control signal is reduced. For example, the level of the control signal for this purpose can be reduced by 30% or more. This can be done, for example, that the amplitudes be lowered. Alternatively or additionally, it is also possible to change the frequency of the control signal so that the overall result is a lower level of the control signal.
  • the output of the control signal to the voice coil loudspeaker 20 is interrupted only when several of the above-mentioned influencing variables speak for an interruption of the output of the control signal, it can be avoided that the output of the control signal to the voice coil loudspeaker 20 is interrupted unnecessarily, although in fact no such high exhaust back pressure is present in the exhaust system 40. For example, it may be required that two, three, four, five or even all six of the aforementioned influencing variables must be cumulatively fulfilled in order to effect an interruption of the output of the control signal to the voice coil loudspeaker.
  • the water meter 54 is connected directly via a control line to the microprocessor 90, this is not mandatory.
  • the water meter 54 may also be connected via the CAN bus 53 to both the engine control 60 'and the microprocessor 90. The same applies to the temperature sensor 51.
  • control signal for the voice coil loudspeaker 20 generated by the microprocessor 90 has been previously formed so as to partially cancel a sound guided in the exhaust system
  • the present invention is not limited thereto.
  • the guided in the exhaust system sound also be completely extinguished or manipulated so that a predetermined desired noise, which may be dependent on a respective speed and / or torque of the internal combustion engine 60, is output via the exhaust port 80 of the tailpipe 10.
  • the passenger car has an internal combustion engine 60, in which the in FIG. 3 shown motor controller 30 is integrated.
  • the internal combustion engine is connected to the in FIG. 3
  • the intake manifold 60 "and exhaust system 40 in fluid communication FIG. 3 is in fluid communication with the exhaust system 40.
  • the microprocessor 90 of the system 70 is connected to the engine controller 60 'of the internal combustion engine. In this way, it is possible to partially or completely extinguish the noise emitted by the passenger car due to the engine 60.

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)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP15178023.6A 2014-09-25 2015-07-23 Protection contre les surcharges pour un acteur d'un systeme destine a influencer un bruit transporte dans une installation de gaz d'echappement Active EP3001411B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014113940.2A DE102014113940A1 (de) 2014-09-25 2014-09-25 Überlastungsschutz für einen Aktor eines Systems zur Beeinflussung von in einer Abgasanlage geführtem Schall

Publications (2)

Publication Number Publication Date
EP3001411A1 true EP3001411A1 (fr) 2016-03-30
EP3001411B1 EP3001411B1 (fr) 2022-04-06

Family

ID=53835251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15178023.6A Active EP3001411B1 (fr) 2014-09-25 2015-07-23 Protection contre les surcharges pour un acteur d'un systeme destine a influencer un bruit transporte dans une installation de gaz d'echappement

Country Status (4)

Country Link
US (1) US10215067B2 (fr)
EP (1) EP3001411B1 (fr)
CN (1) CN105464752B (fr)
DE (1) DE102014113940A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2535731B (en) * 2015-02-25 2019-05-08 Jaguar Land Rover Ltd Active noise control for vehicles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11011151B2 (en) 2017-09-27 2021-05-18 Harman Becker Automotive Systems Gmbh Loudspeaker arrangement
WO2020087430A1 (fr) * 2018-10-30 2020-05-07 中科振声（苏州）电子科技有限公司 Boîte de distribution à réduction active de bruit pour climatiseur de train
US11401847B2 (en) * 2019-09-09 2022-08-02 Ford Global Technologies, Llc Methods and systems for an exhaust tuning valve
US11671747B2 (en) * 2021-02-19 2023-06-06 Toyota Motor Engineering & Manutacturing North America, Inc. Tunable loudspeaker absorber

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000130145A (ja) * 1998-10-29 2000-05-09 Osaka Gas Co Ltd 能動消音装置
JP2001280113A (ja) * 2000-03-30 2001-10-10 Toa Corp 能動型消音装置
US20010036281A1 (en) * 2000-04-06 2001-11-01 Astorino John F. Active noise cancellation stability solution
JP3655006B2 (ja) * 1996-05-09 2005-06-02 ヤンマー株式会社 アクティブ消音装置
US20120308023A1 (en) * 2011-06-01 2012-12-06 J. Eberspaecher Gmbh & Co. Kg Active noise control system for exhaust systems and method for controlling the same
US20130013147A1 (en) * 2011-07-05 2013-01-10 J. Eberspaecher Gmbh & Co. Kg Anti-sound system for exhaust systems and method for controlling the same
DE102011117495A1 (de) 2011-11-02 2013-05-02 J. Eberspächer GmbH & Co. KG Überlastungsschutz für Lautsprecher in Abgasanlagen
EP2701143A1 (fr) * 2012-08-21 2014-02-26 ST-Ericsson SA Sélection de modèle de conditions acoustiques pour contrôle actif du bruit
DE102012018320A1 (de) * 2012-09-15 2014-03-20 Audi Ag Abgasanlage einer Brennkraftmaschine sowie Verfahren zum Betreiben einer Abgasanlage
US20140274198A1 (en) * 2013-03-14 2014-09-18 Cirrus Logic, Inc. Reducing an acoustic intensity vector with adaptive noise cancellation with two error microphones

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805733A (en) * 1987-07-07 1989-02-21 Nippondenso Co., Ltd. Active silencer
US5097923A (en) * 1988-02-19 1992-03-24 Noise Cancellation Technologies, Inc. Active sound attenation system for engine exhaust systems and the like
JPH0419313A (ja) * 1990-05-11 1992-01-23 Nissan Motor Co Ltd 自動車用排気系の消音装置
US5386472A (en) * 1990-08-10 1995-01-31 General Motors Corporation Active noise control system
EP0470656A1 (fr) * 1990-08-10 1992-02-12 General Motors Corporation Méthode et dispositif d'atténuation du bruit d'un moteur
US5692052A (en) * 1991-06-17 1997-11-25 Nippondenso Co., Ltd. Engine noise control apparatus
US5809152A (en) * 1991-07-11 1998-09-15 Hitachi, Ltd. Apparatus for reducing noise in a closed space having divergence detector
US5404409A (en) * 1991-07-31 1995-04-04 Fujitsu Ten Limited Adaptive filtering means for an automatic sound controlling apparatus
US5321759A (en) * 1992-04-29 1994-06-14 General Motors Corporation Active noise control system for attenuating engine generated noise
US5359662A (en) * 1992-04-29 1994-10-25 General Motors Corporation Active noise control system
US5222148A (en) * 1992-04-29 1993-06-22 General Motors Corporation Active noise control system for attenuating engine generated noise
US5278913A (en) * 1992-07-28 1994-01-11 Nelson Industries, Inc. Active acoustic attenuation system with power limiting
US5325438A (en) * 1993-02-01 1994-06-28 At&T Bell Laboratories Active noise-cancellation system for automotive mufflers
JPH0720884A (ja) * 1993-07-01 1995-01-24 Fuji Heavy Ind Ltd 車室内騒音低減装置
JP3099217B2 (ja) * 1994-04-28 2000-10-16 株式会社ユニシアジェックス 自動車用アクティブ騒音制御装置
JPH08158966A (ja) * 1994-11-30 1996-06-18 Nippondenso Co Ltd 内燃機関の騒音制御装置
US5532649A (en) * 1995-01-03 1996-07-02 Sahyoun; Youssef Y. Speaker resistance sensing and power limit setting circuit
JPH08246969A (ja) * 1995-03-15 1996-09-24 Unisia Jecs Corp 自動車用アクティブ騒音制御装置
JPH08254163A (ja) * 1995-03-16 1996-10-01 Unisia Jecs Corp 自動車用アクティブ騒音制御装置
EP0916817B1 (fr) * 1997-11-18 2006-02-08 Faurecia Abgastechnik GmbH Silencieux actif
US20010036280A1 (en) * 2000-06-05 2001-11-01 Astorino John F. Active noise cancellation system recalibration
JP4128502B2 (ja) * 2003-08-26 2008-07-30 本田技研工業株式会社 内燃機関自動始動停止制御装置
US7933420B2 (en) * 2006-12-28 2011-04-26 Caterpillar Inc. Methods and systems for determining the effectiveness of active noise cancellation
US8259953B2 (en) * 2008-04-10 2012-09-04 Bang & Olufsen Icepower A/S Thermal protection of electro dynamic transducers used in loudspeaker systems
DE102008041105A1 (de) * 2008-08-07 2010-02-11 Robert Bosch Gmbh Verfahren zum Betreiben eines watfähigen Kraftfahrzeugs sowie watfähiges Kraftfahrzeug
WO2012123554A1 (fr) * 2011-03-15 2012-09-20 Land Rover Capteur monté sous la carrosserie d'un véhicule et système de commande
DE102011018459A1 (de) * 2011-04-21 2012-10-25 J. Eberspächer GmbH & Co. KG Übertragungsstreckenkompensator
JP5851366B2 (ja) 2011-09-29 2016-02-03 日本特殊陶業株式会社 センサ制御装置及びセンサ制御システム
FR2983335B1 (fr) * 2011-11-25 2019-11-08 Renault S.A.S. Procede et dispositif de controle d'un systeme de reduction active de bruit
DE102013208186B4 (de) * 2013-05-03 2016-09-22 Eberspächer Exhaust Technology GmbH & Co. KG Schallerzeuger für eine Abgasanlage
GB2535731B (en) * 2015-02-25 2019-05-08 Jaguar Land Rover Ltd Active noise control for vehicles

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3655006B2 (ja) * 1996-05-09 2005-06-02 ヤンマー株式会社 アクティブ消音装置
JP2000130145A (ja) * 1998-10-29 2000-05-09 Osaka Gas Co Ltd 能動消音装置
JP2001280113A (ja) * 2000-03-30 2001-10-10 Toa Corp 能動型消音装置
US20010036281A1 (en) * 2000-04-06 2001-11-01 Astorino John F. Active noise cancellation stability solution
US20120308023A1 (en) * 2011-06-01 2012-12-06 J. Eberspaecher Gmbh & Co. Kg Active noise control system for exhaust systems and method for controlling the same
US20130013147A1 (en) * 2011-07-05 2013-01-10 J. Eberspaecher Gmbh & Co. Kg Anti-sound system for exhaust systems and method for controlling the same
DE102011117495A1 (de) 2011-11-02 2013-05-02 J. Eberspächer GmbH & Co. KG Überlastungsschutz für Lautsprecher in Abgasanlagen
EP2701143A1 (fr) * 2012-08-21 2014-02-26 ST-Ericsson SA Sélection de modèle de conditions acoustiques pour contrôle actif du bruit
DE102012018320A1 (de) * 2012-09-15 2014-03-20 Audi Ag Abgasanlage einer Brennkraftmaschine sowie Verfahren zum Betreiben einer Abgasanlage
US20140274198A1 (en) * 2013-03-14 2014-09-18 Cirrus Logic, Inc. Reducing an acoustic intensity vector with adaptive noise cancellation with two error microphones

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2535731B (en) * 2015-02-25 2019-05-08 Jaguar Land Rover Ltd Active noise control for vehicles

Also Published As

Publication number Publication date
EP3001411B1 (fr) 2022-04-06
CN105464752B (zh) 2019-06-18
US20160090885A1 (en) 2016-03-31
US10215067B2 (en) 2019-02-26
CN105464752A (zh) 2016-04-06
DE102014113940A1 (de) 2016-03-31

Similar Documents

Publication Publication Date Title
EP3001411B1 (fr) Protection contre les surcharges pour un acteur d'un systeme destine a influencer un bruit transporte dans une installation de gaz d'echappement
EP2891775B1 (fr) Installation de gaz d'échappement dotée d'un système d'évacuation du condensat
DE102013010609B4 (de) System zur Beeinflussung von Abgasgeräuschen in einer mehrflutigen Abgasanlage und Kraftfahrzeug
EP2797075B1 (fr) Système permettant d'influencer les bruits d'échappement, les bruits du moteur et/ou les bruits d'admission
DE112006002343B4 (de) Verfahren und Vorrichtung zur Regelung des Schalls eines Motors durch Schaltfrequenzanalyse
DE102013208946A1 (de) Abgasanlage für eine Brennkraftmaschine und Verfahren zum Betreiben der Abgasanlage
DE102011117495A1 (de) Überlastungsschutz für Lautsprecher in Abgasanlagen
DE60103785T2 (de) Kraftstoffeinspritzungssteuergerät
DE202012012724U1 (de) Antischall-System für Abgasanlagen
EP2826966B1 (fr) Générateur acoustique d'un système antibruit agissant sur les bruits de gaz d'échappement et/ou les bruits d'admission d'un véhicule automobile
DE102013210464A1 (de) Abgasanlage für eine Brennkraftmaschine und Verfahren zum Betreiben der Abgasanlage
DE102012023643A1 (de) Aktive Gestaltung von Abgasgeräuschen
DE102018103806B4 (de) Verfahren und system zum vermindern von störungen im innenraum eines fahrzeugs sowie kraftfahrzeug mit solch einem system
DE102013112409B4 (de) System zur aktiven beeinflussung von fahrzeuggeräuschen und kraftfahrzeug mit demselben
EP2801708A1 (fr) Générateur acoustique d'un système antibruit agissant sur les bruits de gaz d'échappement et/ou les bruits d'admission d'un véhicule automobile
DE102011018459A1 (de) Übertragungsstreckenkompensator
DE102013218612A1 (de) Kraftfahrzeug-Abgasrückführsystem mit einer Differenzdruckmesseinheit sowie Verfahren zum Überprüfen einer Funktionsfähigkeit der Differenzdruckmesseinheit
EP1099045B1 (fr) Dispositif et procede permettant de reduire les emissions sonores dans le cas de moteurs a combustion interne et de les diagnostiquer
EP1195499A2 (fr) Dispositif et procédé permettant de réduire les émissions sonores dans le cas des moteurs à combustion interne et de les diagnostiquer
DE102012109668A1 (de) Vorrichtung zur Geräuschübertragung bei einem Kraftfahrzeug
DE102013014455B4 (de) System zur Beeinflussung von Abgasgeräuschen
DE102008003085A1 (de) Verbrennungskraftmaschine eines Fahrzeugs und Verfahren zum Betrieb einer Verbrennungskraftmaschine eines Fahrzeugs
DE102008023553B4 (de) Schalldämpfer für eine Abgasanlage
WO2009100734A1 (fr) Dispositif de mise en pression progressive de systèmes d'air comprimé et procédé de fonctionnement d'un dispositif de mise en pression progressive
DE102010047853A1 (de) Ansaugtrakt einer Verbrennungsluft eines Fahrzeugs

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20160930

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200423

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: EBERSPAECHER EXHAUST TECHNOLOGY GMBH

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PUREM GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: F01N 1/06 20060101ALI20211005BHEP

Ipc: G10K 11/178 20060101AFI20211005BHEP

INTG Intention to grant announced

Effective date: 20211021

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1482145

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220415

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015015737

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20220406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220808

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220706

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220707

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220806

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015015737

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20230110

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220723

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220723

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1482145

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220723

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230724

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20230724

Year of fee payment: 9

Ref country code: FR

Payment date: 20230724

Year of fee payment: 9

Ref country code: DE

Payment date: 20230720

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406