EP3804354A1 - AUSWERTEEINRICHTUNG, SCHALLWANDLER, FAHRZEUG, VERFAHREN UND COMPUTERPROGRAMMPRODUKT ZUR DÄMPFUNG VON STÖRANTEILEN IN GERÄUSCHEN AUßERHALB DES FAHRZEUGES - Google Patents
AUSWERTEEINRICHTUNG, SCHALLWANDLER, FAHRZEUG, VERFAHREN UND COMPUTERPROGRAMMPRODUKT ZUR DÄMPFUNG VON STÖRANTEILEN IN GERÄUSCHEN AUßERHALB DES FAHRZEUGESInfo
- Publication number
- EP3804354A1 EP3804354A1 EP19727616.5A EP19727616A EP3804354A1 EP 3804354 A1 EP3804354 A1 EP 3804354A1 EP 19727616 A EP19727616 A EP 19727616A EP 3804354 A1 EP3804354 A1 EP 3804354A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal
- vehicle
- sound transducer
- noise
- evaluation device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
Definitions
- the invention relates to an evaluation device according to claim 1 for a vehicle for damping noise components in noise outside the vehicle. Furthermore, the invention relates to a sound transducer according to claim 2 for a vehicle for damping noise components in noise outside the vehicle. In addition, the invention relates to a vehicle according to claim 10 with at least one transducer according to the invention. Furthermore, the invention relates to a method according to claim 12 for damping noise components in noise outside of a vehicle. The invention also relates to a computer program product according to claim 14 for a vehicle for damping noise components in noise outside the vehicle. Furthermore, the invention relates to a use according to claim 15 of an evaluation device according to the invention, a transducer according to the invention and / or a computer program product according to the invention for damping noise components in noise in areas outside the automotive sector.
- Antisound transmitters are known from the prior art. Anti-sounders are used to actively cancel unwanted sound fields by means of controlled interference. Anti-sirens usually comprise a control system consisting of a sound sensor and a sound source, such as speakers. The loudspeaker is controlled by the sensor in such a way that constant pressure is maintained in the areas of the sound fields.
- DE 28 14 093 C2 discloses an anti-noise transmitter.
- WO 2010 040 705 A1 discloses a device for reducing extraneous sound by generating counter sound.
- active noise compensation is an extinction of noise and counter sound, especially in the ear canal of a wearer of the device.
- active noise cancellation for example anti-sounding devices, a membrane is actively vibrated to extinguish sound fields via interference. That is, the membrane is actively deflected to vibrate.
- the sensors used to record sound are, for example, microphones.
- noise is much louder than the actual useful noise.
- environmental noise such as driving noise and / or noise from wind and engine is received during a car ride as noise.
- These noises are louder than, for example, a sound of a follow-on horn of an approaching emergency vehicle.
- the sound of the subsequent sound horn for example, a siren of an ambulance or fire engine, corresponds to the Nutzgehoffsch.
- the problem then arises that the microphone diaphragm quickly reaches its deflection limit, also referred to as clipping. As a result, audio files are unusable.
- the invention has the object to improve at least the attenuation of noise components in the detection of noise in the automotive sector and other areas.
- the object is achieved by an evaluation device for a vehicle for damping noise components in noise outside the vehicle with the features of claim 1.
- the evaluation device comprises a first interface in order to obtain a first signal of a sensor of a sound transducer.
- the evaluation device comprises a second interface in order to provide a second signal to an actuator of the sound transducer.
- the evaluation device is designed to determine a useful component and the interference component of the first signal as a function of the first signal.
- the evaluation device determines a second signal.
- the deflections of the sound transducer caused by the noise component are at least damped by means of the actuator.
- the evaluation device is designed to completely compensate for the deflections of the sound transducer caused by the interference component by means of the actuator.
- the evaluation is executed, with very bad noise ratio useful ratio, in English Signal Noise Ratio, abbreviated SNR, that is, with predominant interference component to filter out any user parts.
- the object is achieved by a sound transducer for a vehicle for damping noise components in noise outside the vehicle with the features of claim 2.
- the sound transducer comprises a vibrating member to perform vibrations.
- the sound transducer comprises a sensor for converting vibrations of the vibration member generated by sound waves of the noise into a first signal.
- the sound transducer comprises an actuator in order to damp at least by the vibrations induced deflections of the vibrating member.
- the sound transducer comprises an evaluation device.
- the evaluation device is designed to determine a useful component and the interference component of the first signal as a function of the first signal.
- the evaluation device is designed to determine a second signal as a function of the interference component.
- the second signal provides the evaluation device to the actuator.
- the deflections of the oscillating member caused by the interference component are at least attenuated by means of the actuator.
- the oscillating member is brought almost to rest and must not be actively deflected for noise compensation.
- the evaluation device determines the second signal as an inverse interference component.
- the actuator to which this inverse interference component is provided causes the oscillating member to rest.
- the actuator will deflect the oscillating member in such a way that the sensor only further processes the deflections caused by the useful portion.
- the sound transducer comprises an evaluation device according to the invention.
- the acoustic transducer preferably comprises a first coil which receives sound and corresponds to the sensor, and a second coil which corresponds to the actuator.
- the object is achieved by a vehicle having at least one sound transducer according to the invention with the features of claim 10.
- the at least one sound transducer is arranged outside the vehicle interior, preferably on a bumper, on a side region of the vehicle or on the vehicle roof is.
- the evaluation of the transducer is designed to classify while driving with the vehicle noise, especially driving noise, driving wind, and / or engine noise, as interference components of the first signal and to determine the second signal such that the interference components by corresponding zero oscillations of the oscillating member of the at least one sound transducer are compensated. This can be used to detect sirens of emergency vehicles and other useful noises.
- the vehicle comprises an arrangement of a plurality of sound transducers according to the invention.
- a first sound transducer is arranged, for example, on the right edge of the front bumper.
- a second sound transducer is arranged on the left edge of the front bumper.
- a third transducer is located on the right edge of the rear bumper.
- a fourth transducer is located on the left edge of the rear bumper.
- Such an arrangement additionally provides information about a direction from which the sounds are received.
- the sensor of the sound transducer is a 360 ° -view sensor that detects omnidirectional noise.
- Such a sound transducer is advantageously arranged on the vehicle roof.
- the sound transducer is preferably a digital sound transducer.
- the sound transducer is an analog sound transducer.
- the object is achieved by a method for damping noise components in noise outside a vehicle with the method steps according to claim 12. Accordingly, vibrations of a vibration member generated by sound waves are converted into a first signal. Depending on the first signal, a useful portion and a noise component of the first Signals determined. Depending on the noise component, a second signal is determined. The second signal is provided to the actuator. Depending on the second signal, at least the deflections caused by the interference component of the
- Damped vibration element This method advantageously allows a compensation of noise without permanent active deflection of the oscillating member.
- the compensation eliminates the unwanted effect of the interference component by immobilizing the oscillating member with respect to the interference components.
- the second signal is also called the compensation signal.
- the object is achieved by a computer program product for a vehicle for damping extraneous noise in noises outside the vehicle with the features of claim 14.
- the computer program product is designed to be loaded into a memory of a computer of the vehicle.
- the computer program product comprises software code sections with which the method according to the invention can be executed when the computer program product is running on the computer.
- the computer program product according to the invention is platform independent. That is, it can run on any computing platform.
- the computer program product is executed on an evaluation device according to the invention or on a sound transducer according to the invention.
- the software code sections are written in any programming language.
- the object is achieved by using an evaluation device according to the invention, a sound transducer according to the invention and / or a computer program product according to the invention for damping noise components in noise in areas outside the automotive sector according to claim 15.
- An evaluation device is a device that processes incoming information and outputs a result resulting from this processing.
- Insbesonde- re is an electronic circuit, such as a central processing unit or a graphics processor, an evaluation device. An arrangement of several processors is also an evaluation device.
- a computer is also an evaluation device.
- the evaluation device is preferably realized as a system-on-a-chip, that is, all or at least a large part of the functions are integrated on one chip.
- the chip includes, for example, a multi-core processor with central processing processors, referred to in English as the Central Processing Unit, abbreviated CPU.
- the chip also includes graphics processors, referred to in English as the Graphic Processing Unit, abbreviated GPU. Graphics processors are particularly advantageous for parallel processing, called parallel computing, of operations.
- the chip is preferably integrated in a vehicle control device, in the English Electronic Control Unit, abbreviated ECU.
- the vehicle control device is designed to regulate longitudinal and / or lateral control of the vehicle by means of vehicle actuators. By detecting noises, the vehicle is thus controlled as a function of useful noise, preferably automated.
- the invention also provides a human-machine interface, in the English Human Machine Interface, abbreviated HMI, to inform a driver about the detected useful portions of a noise.
- HMI Human Machine Interface
- the evaluation device is advantageously a parallel computer.
- a parallel computer performs processing operations simultaneously on, among others, multiple main and / or graphics processors. Graphics processors are particularly suitable for parallel computing.
- the evaluation device is scalable, that is, the evaluation device can be adapted in particular for different automation levels of automated driving (standard SAEJ3016). Higher levels of automation require more computing power than lower levels of automation. Highly automated driving corresponds to autonomous vehicles.
- the evaluation device is designed to execute a control loop.
- a control circuit is realized, for example, with an electronic circuit comprising diodes, capacitors and / or microcontrollers. Actual value is the first signal from the sensor, which is continuously recorded. Target value is the useful portion of the first signal.
- the sensor and the actuator form the controlled system. Control difference is the noise component.
- the actuator is charged with the inverse interference component. Through the control loop, the sensor is controlled to pass only the payloads.
- a vehicle is a land vehicle or a watercraft. Examples are road vehicles, in particular passenger cars, lorries and trucks. A minibus and a bus are also vehicles.
- Noises outside the vehicle are noises that arise outside of the vehicle. Sound waves of these noises reach the vehicle.
- the noise and the sensor signals resulting from the noise include interference components and useful components.
- User shares are the shares that carry certain information and are to be used. User shares are created by the noise source of the useful noise.
- Noise components are the components that have no use for the further processing of the actual useful noise.
- Disturbance components are caused by additional noise sources and are superimposed on the user noise. In a car trip are noise components, for example, driving wind and / or engine noise.
- An interface is a component between at least two functional units, at which an exchange of logical quantities, for example data, or physical quantities, for example electrical signals, takes place, either only unidirectionally or bidirectionally.
- the exchange can be analog or digital.
- the exchange can also be wired or wireless.
- a sensor is a technical component that detects certain physical properties of its environment, for example sound pressure, qualitatively and / or quantitatively as a measured variable and in a further processing, preferably electrical, Signal, for example, an electrical voltage, transforms.
- the signal provided by the first sensor is preferably an audio signal.
- Actuators convert signals into mechanical motion or other physical quantities, such as vibrations, and actively intervene in a process.
- a transducer is a device that converts sound pressure into electrical signals and converts electrical signals into sound pressure. This allows a transducer to perform the functions of a sensor and an actuator.
- a microphone is a sound transducer in the form of a sensor.
- a loudspeaker is a sound transducer in the form of an actuator.
- a vibrating member is a component for generating, amplifying, absorbing, damping or measuring vibrations.
- a vibration membrane is a vibrating member.
- the vibrating member is, for example, a thin skin or foil that generates or modifies vibrations.
- the vibration element follows the sound pressure or the sound pressure gradient. Pressure gradient microphones also detect the direction from which sound waves arrive.
- a program belongs to the software of a data processing system, for example an evaluation device or a computer.
- Software is a collective term for programs and related data.
- the complement to software is hardware.
- Hardware refers to the mechanical and electronic alignment of a data processing system.
- the evaluation device itself is a hardware.
- Computer program products typically include a sequence of instructions that cause the hardware, when the program is loaded, to perform a particular procedure that results in a particular result.
- the computer program product causes a technical effect, namely at least attenuation of the deflections of the oscillating member due to the interference component as a function of the second signal.
- the sensor converts the oscillations into the first signal according to a transducer principle of a dynamic microphone, a condenser microphone, a piezo microphone or a carbon microphone.
- a voice coil microphone is a dynamic microphone. When incoming sound waves, the vibrating member is set in motion. A coil immersed in a magnetic field is thereby moved in the magnetic field. This induces a voltage.
- an electrically conductive membrane is mounted as a vibrating member in front of a metal plate electrically insulated.
- the oscillating member thus corresponds to a second plate of a plate capacitor.
- Piezo microphones use the piezo effect to generate the first signal.
- the oscillating member is coupled to a piezoelectric component, for example a ceramic.
- a pressure-dependent contact resistance in a carbon granulate stored behind the oscillating member leads to the first signal.
- the actuator converts the second signal into the oscillations according to a transducer principle of a voice coil loudspeaker, a magnetostatic loudspeaker, a piezo loudspeaker, an electromagnetic loudspeaker or a plasma loudspeaker, wherein the actuator is preferably a plunger coil.
- the speakers work according to the effects described for the microphones.
- Plasma speakers convert electrical signals directly into sound waves without the need for mechanical oscillators. This produces an air plasma whose field is dependent on the quality of the signal oscillates. Plasma speakers use the property of gases to expand when heated and contract again on cooling.
- the transducer comprises an analog-to-digital converter to convert the first signal to a digital equivalent.
- the sound transducer comprises a classifier which, depending on known useful components, classifies the useful component and the interference component of the first signal and determines the second signal as a function of the classified interference component.
- the transducer includes a digital-to-analog converter to convert the second signal to an analog equivalent.
- the analog-to-digital converter, the classifier and the digital-to-analog converter are integrated in the evaluation device.
- a digital sound transducer is advantageously provided and the determination of the interference and useful components is digital, so in particular on a computer executable.
- An analog-to-digital converter is an electronic circuit or device that converts a continuous waveform into binary numbers. The binary numbers indicate how often a specific signal interval is contained within the signal.
- a digital-to-analog converter is the counterpart to an analog-to-digital converter.
- a classifier is a mechanical component, an electronic circuit or an algorithm which classifies a set of objects, for example noise components in a sound or signal components in a signal, into classes, for example noise and useful components.
- Classifiers recognize patterns and can be implemented in a computer program.
- the known user components are stored, for example, in a database of the classifier or an external memory to which the classifier has access, for example by means of a wireless interface.
- the classifier is a computer program product.
- the computer program product comprises software code sections for determining the second signal as a function of the classified interference component.
- the evaluation device is designed to execute the computer program.
- the classifier is an artificial neural network that is trained to determine useful and / or noise components in the first signal.
- a software algorithm provided to filter out noises from Nutzanmaschine.
- the artificial neural network no longer has to rely on deposited user shares. Through training, the artificial neural network has learned what useful parts and what are noise components, for example, depending on frequency and / or amplitude characteristics of the first signal.
- the artificial neural network has the advantage that it can purposely respond to new information, for example, sounds that it has not yet processed in the training phase.
- Artificial intelligence is a generic term for the automation of intelligent behavior. For example, an intelligent algorithm learns to react purposefully to new information.
- An artificial neural network known in English as the Artificial Neural Network, is an intelligent algorithm.
- An intelligent algorithm is designed to learn to react purposefully to new information. The training phase is inspired by the learning process of a brain.
- the evaluation device is designed to determine the second signal as a function of frequencies of the sound waves such that below or above a certain frequency results in a zero oscillation of the oscillation element.
- the vibrating member is at rest.
- the oscillating member does not oscillate at frequencies below 100 Hz.
- useful parts in road traffic are above 100 Hz. Shares below 100 Hz are then noise components. This realizes a first noise filter.
- the evaluation device is designed to determine the second signal such that the oscillating member only at low frequencies, high frequencies or within an adjustable frequency range
- the evaluation device thus realizes filter functions.
- Certain interference signals for example truck hum at, for example, 250 Hz, can thus be specifically eliminated. If, for example, traffic noise is disturbed by a nearby truck engine noise in traffic, the filter function of the evaluation are used to filter away this noise.
- Useful signals for example sirens of emergency vehicles, are still detected, for example also with a bandpass filter, which only lets pass the frequencies typical for sirens.
- a bandpass filter advantageously only a certain frequency range is detected selectively.
- the bandpass filter preferably Nutzfrequenzspektren are permanently scanned, preferably narrowband dig.
- the evaluation device can specifically detect this useful signal by means of the filter functions.
- the receiving area or the sensitivity range of the sound transducer is advantageously adaptable by software and changeable or displaceable during recording.
- the evaluation device is designed to recognize a substantially constantly acting on the vibrating member suppressing or overpressure and to determine the second signal in response to the negative pressure or the overpressure such that the actuator moves the vibrating member in a rest position.
- a speed-dependent driving wind is created, to which, if necessary, an existing wind is added.
- the driving wind presses against the oscillating member and moves it out of the rest position.
- the oscillating member is pressed back into the rest position in such situations in order not to modify the sound recording.
- the at least one sound transducer comprises interfaces to vehicle sensors, preferably an air pressure sensor. This will be one on the
- Detected oscillating member suppressing or overpressure detected and the second signal in response to the negative pressure or the overpressure determined such that the actuator moves the vibrating member in a rest position.
- the sound transducer interfaces with speed sensors to determine a speed-dependent manipulated variable for the actuator so that it can move the vibrating member back to the rest position.
- an inventive transducer is used to carry out the method.
- the invention will be explained by way of example in the following figures. Show it:
- FIG. 1 a is a sectional view of an embodiment of a transducer according to the invention
- FIG. 1 b is a plan view of the transducer according to Fig. 1a,
- FIG. 1 c shows a side view of the sound transducer according to FIG. 1 a
- FIG. 3 shows an embodiment of a sound transducer according to the invention when applying a noise component
- FIG. 4 shows an exemplary embodiment of a sound transducer according to the invention when applying a noise component and a useful component
- Fig. 5 is a schematic representation of the filter functions of the invention.
- Fig. 6 is a schematic representation of the method according to the invention.
- FIG. 1 a shows, for example, a sectional view of a sound transducer 1000 according to the invention.
- FIG. 1 b shows the sound transducer in plan view.
- the sound transducer 1000 is arranged, for example, on a vehicle roof of a passenger car.
- the sound transducer 1000 includes a swing member 100.
- the swing member 100 is a diaphragm.
- On the vibrating member 100 sound waves of noise 10 meet.
- the sources of noise 10 are outside of a vehicle.
- the Sound waves deflect the vibrating member 100.
- the vibrating member 100 starts to vibrate.
- the oscillations are dependent, for example, on the frequency and amplitude of the sound waves, on a self-resonant frequency of the vibrating member 100, on a damping constant of the vibrating member 100 and / or on a clamping of the vibrating member 100 in the sound transducer 1000.
- the sensor 200 is, for example, a plunger coil 203 immersed in a field of a permanent magnet 201, see FIG. 1 c.
- a bobbin 202 of the plunger coil 203 is connected to the swing member 100. Due to the vibrations of the oscillating member 100, the plunger coil 203 oscillates in the permanent magnetic field. As a result, an electrical voltage is induced. The electrical voltage is evaluated as a first signal 12.
- the first signal 12 is provided via a first interface 701 of an evaluation device 700.
- the evaluation device 700 is a control loop. Input variable of the control loop is the first signal 12 as an actual value.
- the control loop regulates the controlled system comprising the sensor 200 and an actuator 300.
- the actuator 300 is preferably not a plunger coil 203 but, for example, a piezoelectric actuator.
- the first signal 12 contains at the beginning of the control a noise component 11 and a useful portion 13.
- the useful portion 13 corresponds to the desired value.
- the target value is stored in a database.
- the target value is determined by means of artificial intelligence, for example with an artificial neural network, which has been trained to filter out noises 10 payloads 13.
- the oscillating member 100 only executes vibrations corresponding to the useful portion 13.
- the noise component 1 1 was corrected.
- the control difference between the first signal 12 and useful portion 13 corresponds to the interference component 1 1.
- the inverse interference component 1 1 results in a second signal 14.
- the second signal 14 is a manipulated variable for the actuator 300.
- the second signal 14 is the actuator 300 via a second interface 702 provided.
- the actuator 300 prevents the oscillations of the oscillating member 100 caused by the interference components 11.
- the evaluation device 700 is preferably a digital evaluation device and comprises an analog-to-digital converter 400.
- the analog-to-digital converter 400 digitizes the electrical voltage which the sensor 200 delivers as its output variable into a digital data stream.
- the classifier 500 is, for example, an algorithm which determines the useful signal 13 and the interference component 11 of the first signal 12 by processing the first signal 12.
- the classifier 500 is an artificial neural network.
- the evaluation device 700 is designed to execute the artificial neural network.
- the evaluation device 700 has sufficient computing power and sufficient storage capacity.
- the evaluation device 700 also includes a digital-to-analog converter 600.
- the digital-to-analog converter 600 converts the result of the classifier 500 back into an electrical voltage.
- the evaluation device 700 preferably comprises a device for voltage adjustment in order to optimally adapt this voltage to the actuator 300.
- the voltage adjustment device is, for example, an amplifier.
- the invention provides an impedance matching.
- FIG. 2 shows a sound transducer 1000 known from the prior art.
- the noise 10 impinging on the vibration member 100 is a noise and consists of noise components 11.
- the sensor 200 outputs the interference signal 1 1 as an output signal 15.
- the output signal 15 is the output signal 15 of the sound transducer 1000.
- FIG. 3 shows the sound transducer 1000 according to the invention.
- the vibration element 100 is excited by interference components 11.
- the evaluation device 700 controls the interference component 1 1 by the second signal 14.
- the second signal 14 is a compensation signal with respect to the first signal 1 1. 1m controlled state, the vibrating member remains in rest position. The conditional by the interference component 1 1 vibrations are prevented.
- the output signal 15 of the sensor 200 is a zero signal.
- the noise 10 comprises the interference component 11 and the useful component.
- the evaluation device 700 determines the second signal 14 in such a way that in the adjusted stood the vibrating member 100 is only excited by the useful portion 13 of the noise 10.
- the output signal 15 of the sensor 200 is thus the useful portion 13.
- FIG. 5 shows the filter functions of the evaluation device 700. Plotted is a power level of the sound transducer 1000 in decibels as a function of a frequency f. Without the evaluation device 700 according to the invention, the power level above a certain frequency f is independent of the frequency f.
- the evaluation device 700 makes it possible to determine the second signal 14 in such a way that the vibration element 100 executes vibrations only at low frequencies f. This corresponds to a low-pass filter TP.
- the evaluation device 700 further makes it possible to determine the second signal 14 in such a way that the vibration element 100 executes vibrations only at high frequencies f. This corresponds to a high-pass filter HP.
- the evaluation device 700 also makes it possible to determine the second signal 14 in such a way that the vibration element 100 executes vibrations only in a defined frequency band.
- the individual filters can be combined with each other. With the bandpass filter BP, the surroundings of the vehicle can be specifically scanned for noises 10 whose frequency f lies in the bandpass filter's frequency band.
- a first method step V1 vibrations of the oscillating member 100 generated by sound waves are converted into the first signal 12.
- a useful component 13 and a noise component 11 of the first signal 12 are determined as a function of the first signal 12.
- the second signal 14 is determined as a function of the interference component 11.
- the second signal 14 is provided for the actuator 300.
- the deflections of the oscillating member caused by the interference component 11 are at least attenuated as a function of the second signal 14.
- the method is programmed in a programming language with corresponding program instructions and is executed as software on the evaluation device 700 according to the invention.
- the recording area or the sensitivity rich of the transducer 1000 via software adaptable and changeable during a sound recording.
- the invention is particularly advantageous for a vehicle for damping noise components 11 in noises 10 outside the vehicle, for example, driving wind noise.
- the invention can also be used for other areas, for example, for press and / or Congresshlivübertragonne to compensate for noise 11 at the transmission site, for example wind noise.
- an evaluation device 700 according to the invention a transducer 1000 according to the invention and / or a computer program product according to the invention for damping noise components 11 in noises 10 in areas outside the automotive sector, preferably press and / or lavishhliveübertragonne.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018209043.2A DE102018209043A1 (de) | 2018-06-07 | 2018-06-07 | Auswerteeinrichtung, Schallwandler, Fahrzeug, Verfahren und Computerprogrammprodukt zur Dämpfung von Störanteilen in Geräuschen außerhalb des Fahrzeuges |
| PCT/EP2019/063464 WO2019233790A1 (de) | 2018-06-07 | 2019-05-24 | AUSWERTEEINRICHTUNG, SCHALLWANDLER, FAHRZEUG, VERFAHREN UND COMPUTERPROGRAMMPRODUKT ZUR DÄMPFUNG VON STÖRANTEILEN IN GERÄUSCHEN AUßERHALB DES FAHRZEUGES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3804354A1 true EP3804354A1 (de) | 2021-04-14 |
Family
ID=66677116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19727616.5A Withdrawn EP3804354A1 (de) | 2018-06-07 | 2019-05-24 | AUSWERTEEINRICHTUNG, SCHALLWANDLER, FAHRZEUG, VERFAHREN UND COMPUTERPROGRAMMPRODUKT ZUR DÄMPFUNG VON STÖRANTEILEN IN GERÄUSCHEN AUßERHALB DES FAHRZEUGES |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3804354A1 (de) |
| DE (1) | DE102018209043A1 (de) |
| WO (1) | WO2019233790A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022120139B4 (de) | 2022-08-10 | 2025-12-04 | Cariad Se | Kraftfahrzeug und Verfahren zum Betreiben eines Kraftfahrzeugs |
| CN120207309B (zh) * | 2025-05-28 | 2025-08-12 | 龙岩学院 | 基于传感融合的车辆横向稳定性协调控制系统 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT350649B (de) * | 1977-05-26 | 1979-06-11 | Akg Akustische Kino Geraete | Mikrophon |
| DE2814093C2 (de) | 1978-04-01 | 1980-05-14 | Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen | Antischallgeber |
| DE4303921A1 (de) * | 1993-02-10 | 1994-08-11 | Bayerische Motoren Werke Ag | Verfahren zur Messung eines Differenzschalls durch Subtraktion eines über einen Lautsprecher gerade abgegebenen Schalls von einem Gesamtschall |
| DE102008050425A1 (de) * | 2008-10-08 | 2010-04-15 | Sennheiser Electronic Gmbh & Co. Kg | Vorrichtung zur aktiven Reduzierung von Fremdschall |
| DE102011087765A1 (de) * | 2011-12-05 | 2013-06-06 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Dämpfen und/oder Verstärken eines in eine Fahrgastzelle eines Kraftfahrzeugs eingeleiteten Geräuschs |
-
2018
- 2018-06-07 DE DE102018209043.2A patent/DE102018209043A1/de not_active Ceased
-
2019
- 2019-05-24 WO PCT/EP2019/063464 patent/WO2019233790A1/de not_active Ceased
- 2019-05-24 EP EP19727616.5A patent/EP3804354A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018209043A1 (de) | 2019-12-12 |
| WO2019233790A1 (de) | 2019-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102014201228B4 (de) | System und Verfahren zur aktiven Lärmkontrolle | |
| DE112013007075B4 (de) | Fahrzeugannäherungs-Alarmvorrichtung | |
| DE4244108C2 (de) | Einrichtung zur aktiven Geräuschreduzierung in einem Raum wie etwa einer Fahrzeug-Fahrgastzelle | |
| DE102018121025A1 (de) | System und verfahren zum aufheben störender windgeräusche in einer fahrzeugkabine | |
| DE102020126098A1 (de) | Verfahren zum steuern eines klangs eines elektrofahrzeugs basierend auf elektromotorschwingung | |
| EP3804354A1 (de) | AUSWERTEEINRICHTUNG, SCHALLWANDLER, FAHRZEUG, VERFAHREN UND COMPUTERPROGRAMMPRODUKT ZUR DÄMPFUNG VON STÖRANTEILEN IN GERÄUSCHEN AUßERHALB DES FAHRZEUGES | |
| DE102022208904A1 (de) | Klangsteuerungsvorrichtung für fahrzeuge und steuerungsverfahren dafür | |
| DE102015214134A1 (de) | Verfahren und Regelungsvorrichtung zur aktiven Schallunterdrückung in einem Kraftfahrzeug | |
| DE69210169T2 (de) | Aktives Lärmunterdrückungssystem | |
| DE102022211233A1 (de) | Fahrzeug-schallsteuervorrichtung und verfahren derselben | |
| DE102018222825A1 (de) | Verfahren und System zum Betrieb eines Fahrzeugs mit akustischer Erfassung einer Fahrzeugaußenumgebung | |
| WO2023016924A1 (de) | Verfahren und system zum erzeugen von geräuschen in einem innenraum basierend auf extrahierten und klassifizierten realen geräuschquellen und für spezifische zielgeräusche akustisch transparentes fahrzeug umfassend ein derartiges system | |
| DE4236155C2 (de) | Verfahren und Anordnung zur aktiven Innengeräuschreduzierung bei Fahrzeugen | |
| DE102019102941A1 (de) | Verfahren, Vorrichtung und Computerprogramm zum Betreiben eines Audiosystems in einem Fahrzeug | |
| DE102019101794A1 (de) | Karosseriemontiertes geräuschunterdrückungssystem für ein fahrzeug | |
| DE19632230C2 (de) | Adaptive Steuerung zur aktiven Geräuschminderung, Verwendung und Verfahren | |
| DE102020205678A1 (de) | Verfahren und Vorrichtung zur Erkennung von Beschädigungen an einem Kraftfahrzeug | |
| DE102019213699B4 (de) | Erkennung einer Ursprungsrichtung eines akustischen Signals | |
| DE102019219749B4 (de) | Beurteilen der Identifizierbarkeit eines Warnsignals in Mikrofondaten | |
| DE19911335A1 (de) | Vorrichtung zur Einstellung von Motorgeräuschen im Innenraum eines Kraftfahrzeuges | |
| EP4109929A1 (de) | Verfahren zur direktionalen signalverarbeitung von signalen einer mikrofonanordnung | |
| DE102018221449A1 (de) | Sensorsystem zur Objekterkennung | |
| WO2020127406A1 (de) | Vorrichtung und verfahren zum erfassen von geräuschen in einer umgebung eines fahrzeugs | |
| DE102020211876A1 (de) | Verfahren zum Erkennen eines Defektes an einem Fahrzeug | |
| EP2152026A2 (de) | Anordnung und Verfahren zur Regelung einer Rückkopplungsunterdrückung bei Hörvorrichtungen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| 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 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20201207 |
|
| 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 |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20210730 |