EP3146359A1 - Détecteur à ultrasons doté d'un dispositif à mémoire pour véhicule automobile, système de détection, véhicule automobile ainsi que procédé de fabrication - Google Patents

Détecteur à ultrasons doté d'un dispositif à mémoire pour véhicule automobile, système de détection, véhicule automobile ainsi que procédé de fabrication

Info

Publication number
EP3146359A1
EP3146359A1 EP15716813.9A EP15716813A EP3146359A1 EP 3146359 A1 EP3146359 A1 EP 3146359A1 EP 15716813 A EP15716813 A EP 15716813A EP 3146359 A1 EP3146359 A1 EP 3146359A1
Authority
EP
European Patent Office
Prior art keywords
ultrasonic sensor
transmitting device
sensor
motor vehicle
ultrasonic
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.)
Ceased
Application number
EP15716813.9A
Other languages
German (de)
English (en)
Inventor
Michael Hallek
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.)
Valeo Schalter und Sensoren GmbH
Original Assignee
Valeo Schalter und Sensoren GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Schalter und Sensoren GmbH filed Critical Valeo Schalter und Sensoren GmbH
Publication of EP3146359A1 publication Critical patent/EP3146359A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating
    • G01S7/52006—Means for monitoring or calibrating with provision for compensating the effects of temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/524—Transmitters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/87—Combinations of sonar systems
    • G01S15/876—Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating
    • G01S2007/52009—Means for monitoring or calibrating of sensor obstruction, e.g. dirt- or ice-coating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2015/932—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles for parking operations

Definitions

  • Ultrasonic sensor with memory device for a motor vehicle, sensor arrangement, motor vehicle and manufacturing method
  • the present invention relates to an ultrasonic sensor for a motor vehicle, having a transmitting device for emitting ultrasonic waves, wherein the transmitting device has a diaphragm and an adjusting device, with which the membrane for emitting the ultrasonic waves is movable, and having a memory device, on which at least one operating parameter of the ultrasonic sensor is stored.
  • the present invention relates to a sensor arrangement with an ultrasonic sensor and an evaluation device.
  • the present invention relates to a motor vehicle with such a sensor arrangement.
  • the present invention relates to a
  • Ultrasonic sensors safely detect the obstacles located in the vicinity of the motor vehicle or the distances reliably up to a
  • the ultrasonic sensors can detect predetermined range. If the ultrasonic sensors are blocked, that is covered by an additional mass, such as dirt, snow and / or ice, this functionality can no longer be guaranteed.
  • DE 10 2009 040 992 A1 proposes to detect the settling time of the ultrasonic sensor following excitation of the membrane and to compare it with the excitation frequency. Depending on the result of this comparison, it is determined whether the ultrasonic sensor is blocked or not.
  • DE 10 2010 021 960 A1 describes a method in which the decay time of the membrane over several measuring cycles of the ultrasonic sensor is evaluated for the detection of the blocked state of an ultrasonic sensor.
  • the measurement of the change in the resonant frequency of the ultrasonic sensor and a deviation determined therefrom to a fundamental resonance frequency without contamination are dependent on different factors. For example, the temperature and an associated change in the mechanical properties of the ultrasonic sensor or the membrane play a role. Such a change of
  • Temperature information that are stored, for example, in an evaluation, are corrected.
  • a very large influencing factor which can not yet be corrected are the component tolerances of the ultrasonic sensor itself.
  • the membranes of the ultrasonic sensor itself.
  • Total tolerance for the resonant frequency may be, for example, in the range of several 100 Hz or even in the range of a few kHz. It should be noted that the ultrasonic sensor has a bandwidth in the range of +/- 2 KHz.
  • Frequency shifts that can occur due to the contamination or blocking of the membrane can be within these tolerances.
  • the natural frequency or resonance frequency of the ultrasonic sensor is measured and compared with stored reference values.
  • the sensor is excited and measured the Ausschwingfrequenz.
  • This Ausschwingfrequenz or the resonance frequency of the ultrasonic sensor are stored in a memory device, such as an EEPROM memory, a control device of the motor vehicle. It is an object of the invention to provide a solution as an ultrasonic sensor of the type mentioned can be operated reliably and in particular as a blocked state of the ultrasonic sensor can be determined more precisely.
  • An inventive ultrasonic sensor for a motor vehicle comprises a
  • Transmitting device for emitting ultrasonic waves wherein the transmitting device comprises a diaphragm and an adjusting device, with which the membrane for emitting the ultrasonic waves is movable, and a memory device, on which at least one operating parameter of the ultrasonic sensor is stored, wherein as the at least one operating parameter of the ultrasonic sensor at least one resonance value is stored on the memory device, which has a resonance frequency of
  • the invention is based on the finding that ultrasonic sensors usually have a memory device. On this storage device can
  • Operating parameters of the ultrasonic sensor may be stored. For example, manufacturer-related data such as the country, the line and / or the factory in which the ultrasonic sensor has been manufactured may be stored.
  • at least one resonance value is additionally stored in the memory device. This at least one
  • Resonance value describes a resonance frequency or a natural frequency of the transmitting device of the ultrasonic sensor.
  • the transmitting device comprises the
  • a first resonance value which describes a first resonance frequency of the transmitting device at a first temperature
  • at least one second resonance value which describes a second resonant frequency of the transmitting device at a different second temperature from the first, are preferably stored in the memory device.
  • a plurality of resonance values can be stored in the memory device, which were respectively determined at different temperatures.
  • the resonance frequency of the ultrasonic sensor or of the transmitting device may change due to a change in the temperature. This can be due to the temperature dependence of the material stiffness (modulus of elasticity) of the transmitting device itself and / or the adjacent components. In this way, the temperature influence on the resonance frequency of the transmitting device can be reliably taken into account.
  • the memory device is preferably designed as a non-volatile memory.
  • a non-volatile memory which may also be referred to as a non-volatile memory
  • the stored information can also be retained when the
  • the memory device may be formed as an EPROM memory, as a flash memory, as a ROM memory or OTP or the like.
  • EPROM memory as a flash memory
  • OTP as a ROM memory
  • Memory device of the ultrasonic sensor is stored.
  • the transmitting device and the memory device are arranged on a common carrier element and / or arranged in a common housing.
  • the transmitting device and the memory device of the ultrasonic sensor can be arranged, for example, on a common board. Alternatively or additionally, the transmitting device and the memory device in a
  • a space-saving ultrasonic sensor which additionally comprises a memory device in which the resonance frequency of the transmitting device of the ultrasonic sensor is stored.
  • the ultrasonic sensor has a
  • Temperature detecting means for detecting the temperature of the ultrasonic sensor can also be in the support element of Ultrasonic sensor may be arranged or arranged in the housing of the ultrasonic sensor.
  • the temperature detection device is designed to determine a temperature of the transmitting device of the ultrasonic sensor. In this way, the current temperature of the transmitting device can be reliably determined. This information can be taken into account, for example, in addition to the at least one resonance value which describes the resonant frequency of the transmitting device at the current detected temperature or in a region of the detected current temperature.
  • the ultrasonic sensor preferably has an interface for outputting the at least one resonance value stored on the memory device.
  • a communication interface is provided by means of which the at least one resonance value can be transmitted to an evaluation device of the motor vehicle.
  • This interface can be connected, for example, to the CAN bus of the motor vehicle. In this way, the stored in the memory device resonance value can be easily provided.
  • a sensor arrangement according to the invention comprises at least one ultrasonic sensor according to the invention and an evaluation device.
  • the evaluation device is designed to store the at least one stored on the memory device
  • the evaluation device may in particular be a central control device of the motor vehicle, which is also referred to as an electronic control unit (ECU).
  • ECU electronice control unit
  • Sensor arrangement may also comprise several of the ultrasonic sensors according to the invention.
  • each of the ultrasonic sensors transmit its resonance value to the evaluation device.
  • the evaluation device can reliably control the individual ultrasonic sensors as a function of their resonance frequency.
  • At least one desired value for the evaluation device at least one desired value for the
  • Resonant frequency of the transmitting device of the ultrasonic sensor stored and the evaluation device is adapted to replace the at least one desired value by the at least one received resonance value.
  • a desired value for the resonant frequency of the ultrasonic sensor be deposited, for the control and / or evaluation of the Sensor signals of the ultrasonic sensor is used. This value can now be replaced by the at least one resonance value, which is transmitted from the ultrasonic sensor to the evaluation device. In this way, the ultrasonic sensor can be operated more reliably.
  • the evaluation device is designed to handle the
  • the setting unit of the transmitting device can be controlled by means of the evaluation device so that it is operated with its determined resonance frequency. In this way, the
  • Transmitter can be operated energy-efficient.
  • the evaluation device is designed to, the
  • Resonant frequency of the transmitting device a decay frequency of the transmitting device can be determined. Based on this, the current resonance frequency of the
  • Transmitter be determined.
  • the evaluation device is designed to determine a blocked state of the ultrasonic sensor based on a comparison of the current specific resonance frequency and the at least one received resonance value.
  • the transmitting device of the ultrasonic sensor can be covered by an additional mass, such as dirt, snow and / or ice. In this way, the current resonance frequency of the ultrasonic sensor is changed. Look at one
  • the motor vehicle according to the invention comprises the sensor arrangement according to the invention.
  • the evaluation device of the sensor arrangement is adapted to a blocked state of the ultrasonic sensor when activating an ignition of the
  • Motor vehicle comprises providing a transmitting device of the ultrasonic sensor, providing a storage device of the ultrasonic sensor, arranging the transmitting device and the memory device on a common carrier element, determining at least one resonant frequency of the transmitting device, determining at least one resonance value based on the at least one determined
  • the resonance frequency of the transmitting device is determined and stored in the memory device.
  • further operating parameters such as, for example, the transmission sound intensity and the reception sensitivity can also be stored in the memory device.
  • the tolerance value in the resonance value is determined and stored in the memory device.
  • Figure 1 is a schematic representation of a motor vehicle with a sensor arrangement according to an embodiment of the invention.
  • Fig. 2 shows a schematic representation of an ultrasonic sensor of
  • Sensor arrangement comprising a memory device, a
  • 3 is a graph showing an adaptation of a in an evaluation of the
  • An illustrated in Fig. 1 motor vehicle 1 is for example a passenger car.
  • the motor vehicle 1 comprises a sensor arrangement 2, which has a plurality of
  • Ultrasonic sensors 3 and an electronic evaluation device 4, which may be formed, for example, as a control unit comprises.
  • the number and arrangement of the ultrasonic sensors 3 are shown in FIG. 1 by way of example only and may vary depending on the embodiment. In this embodiment, a plurality of
  • Ultrasonic sensors 3 arranged on a front bumper 5 of the motor vehicle 1; a plurality of ultrasonic sensors 3 is also arranged on a rear bumper 6 of the motor vehicle 1.
  • the ultrasonic sensors 3 can each be arranged in a recess of the respective bumper 5, 6, so that the transmitting device of the respective ultrasonic sensors 3 are arranged within the respective continuous recess of the bumpers 5, 6.
  • a concealed installation of the ultrasonic sensors 3 behind the respective bumpers 5, 6 may be provided, so that the transmitting device of the ultrasonic sensors 3 abut against the back of the respective bumper 5, 6 and the ultrasonic signals through the material of the bumper 5, 6 transmitted through and to be received.
  • the ultrasonic sensors 3 are each for detecting distances to in one
  • Evaluation device 4 is transmitted, which processes the measured values of the ultrasonic sensors 3.
  • driver assistance systems 7a to 7x be provided, which are designed to provide different functionalities in the motor vehicle 1, namely on the basis of the measured distances of the ultrasonic sensors 3.
  • the different driver assistance systems 7a to 7x are shown as separate components; However, several functionalities can also be provided by a common control unit, which then assumes the function of several driver assistance systems.
  • driver assistance systems 7a to 7x for example, the following systems can be provided: A parking assistance system in which the measured distances are emitted acoustically and / or optically
  • an automatic brake assist system which for automatic braking of the motor vehicle 1 on the basis of the measured values of the ultrasonic sensors 3 detected
  • Risk of collision a system for blind spot monitoring, a system for
  • Fig. 2 is a greatly simplified representation of an ultrasonic sensor 3 is shown in a plan view.
  • the ultrasonic sensor 3 comprises a transmitting device 8, which serves for emitting an ultrasonic signal.
  • the transmitting device 8 serves for emitting an ultrasonic signal.
  • Transmitting device 8 a membrane, not shown here, which moves with an adjusting unit or can be set in mechanical vibrations.
  • the diaphragm may be made of aluminum, for example, and the actuator may include a corresponding actuator, such as a piezoelectric actuator.
  • the membrane and the actuator thus form an oscillatory system, the one
  • This resonant frequency may for example be between 40 KHz and 60 KHz.
  • the ultrasound sensor 3 additionally comprises a memory device 9.
  • the memory device 9 can in particular be designed as a nonvolatile memory.
  • Storage device 9 are arranged together in a housing of the ultrasonic sensor 3.
  • Transmitter 8 measured.
  • the membrane can be excited with the adjusting unit and a decay frequency of the transmitting device 8 can be determined.
  • a resonance value fR is determined and stored on the memory device 9 of the ultrasonic sensor 3 deposited.
  • the resonance value fR describes the determined or measured
  • the resonance frequency of the transmitting device 8 is measured at different temperatures T and for predetermined temperatures in each case a resonance value f R is determined, which is stored on the memory device 9.
  • the ultrasonic sensor 3 comprises a temperature detection device 10.
  • the temperature detection device 10 is designed to detect the current temperature T of the ultrasonic sensor 3. In other words, that captures
  • Temperature detection device 10 the respective sensor temperature.
  • the temperature detection device 10 comprises a temperature sensor, which in and / or on the housing 1 1 of the ultrasonic sensor 3 or in the immediate vicinity of
  • Ultrasonic sensor 3 is arranged.
  • Temperature detection device 10 are connected to an interface 12 of the
  • Temperature detection device 10 currently detected temperature T to the
  • Evaluation device 4 is usually at least one desired value f so n for the
  • This nominal value f so n for the resonance frequency may correspond to a standard value for the resonant frequency of the transmitting device of the ultrasonic sensor 3. This component tolerances due to the production are not taken into account.
  • various desired frequencies f so n for the resonant frequency as a function of the temperature T are deposited. This is illustrated in the graph of FIG. 3.
  • the temperature T of the transmitting device 8 is plotted on the abscissa. On the ordinate the frequency f is plotted.
  • the dashed line 13 describes the course of the desired value f so n of the resonant frequency as a function of the temperature T.
  • the solid line describes the course of the measured resonance frequency
  • the measured resonance frequency is stored in the form of a plurality of resonance values f R, which were determined for different temperatures T, in the memory device 9 of the ultrasonic sensor 3.
  • the resonance values f R are transmitted from the memory device 9 of the ultrasonic sensor 3 to the evaluation device 4.
  • the stored there desired values f are as for the n
  • Evaluation device 4 a blocked state of the respective ultrasonic sensors 3 can be determined.
  • the evaluation device 4 is also designed to the
  • Excitation signal activated. Subsequently, the mechanical vibration of the actuator 9 is detected. In this way, the current resonance frequency or natural frequency of the transmitting device 8 can be determined.
  • the frequency, which occurs when the transmitter 9 swings out, corresponds to the current resonant frequency of the transmitter 8.
  • the evaluation device 4 first detects the current resonance frequency of the respective ultrasonic sensors 3.
  • the current temperature T which was determined by the temperature detection device 10
  • the current temperature T can also be transmitted from the respective ultrasonic sensor 3 to the evaluation device 4.
  • the currently detected resonance frequency of the transmitting device 8 of the ultrasonic sensor 3 can be assigned to the reference value fR stored in the evaluation device 4 for this temperature T. Based on a comparison between the currently measured resonance frequency and the resonance value fR, which is determined by means of the
  • Evaluation device 4 is performed, it can be determined whether an additional mass is on the ultrasonic sensor 3. This comparison can be for any of the
  • Ultrasonic sensors 3 which is installed on the motor vehicle 1, are performed. Due to the fact that the at least one resonance value fR is deposited on the storage device 9 of the ultrasonic sensor 3, component tolerances can be calculated out as influencing factor. In this way, a blocked state or the ice and dirt detection can be set very selectively. In addition, a quick query of the (fundamental) resonance frequency of the respective transmitting device 8 by means of the evaluation device 4, for example, during an initialization of the
  • Evaluation device 4 be enabled. Thus, for example, no averaging of all ultrasonic sensors 3 of the motor vehicle 1 longer required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

L'invention concerne un détecteur à ultrasons (3), destiné à un véhicule automobile (1), qui comprend un dispositif émetteur (8) servant à émettre des ondes ultrasonores, doté d'une membrane et d'un ensemble actionneur servant à déplacer la membrane afin d'émettre les ondes ultrasonores, et un dispositif à mémoire (9) dans lequel est mémorisé au moins un paramètre de fonctionnement du détecteur à ultrasons (3). Le ou les paramètres de fonctionnement du détecteur à ultrasons (3) mémorisés dans le dispositif à mémoire (9) comprennent au moins une valeur de résonance (fR) décrivant une fréquence de résonance du dispositif émetteur (8). Ceci permet d'exploiter le détecteur à ultrasons de manière fiable en fonction de sa fréquence de résonance effective.
EP15716813.9A 2014-05-23 2015-04-17 Détecteur à ultrasons doté d'un dispositif à mémoire pour véhicule automobile, système de détection, véhicule automobile ainsi que procédé de fabrication Ceased EP3146359A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014107304.5A DE102014107304A1 (de) 2014-05-23 2014-05-23 Ultraschallsensor mit Speichereinrichtung für ein Kraftfahrzeug, Sensoranordnung, Kraftfahrzeug sowie Herstellungsverfahren
PCT/EP2015/058376 WO2015176883A1 (fr) 2014-05-23 2015-04-17 Détecteur à ultrasons doté d'un dispositif à mémoire pour véhicule automobile, système de détection, véhicule automobile ainsi que procédé de fabrication

Publications (1)

Publication Number Publication Date
EP3146359A1 true EP3146359A1 (fr) 2017-03-29

Family

ID=52875706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15716813.9A Ceased EP3146359A1 (fr) 2014-05-23 2015-04-17 Détecteur à ultrasons doté d'un dispositif à mémoire pour véhicule automobile, système de détection, véhicule automobile ainsi que procédé de fabrication

Country Status (3)

Country Link
EP (1) EP3146359A1 (fr)
DE (1) DE102014107304A1 (fr)
WO (1) WO2015176883A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015224733B3 (de) * 2015-12-09 2016-10-20 Robert Bosch Gmbh Verfahren und Vorrichtung zum Erkennen eines eisbelegten elektroakustischen Sensors
DE102016101007B4 (de) * 2016-01-21 2022-12-01 Valeo Schalter Und Sensoren Gmbh Ultraschallsensor für ein Kraftfahrzeug mit wasserundurchlässiger Abdeckeinrichtung, Fahrerassistenzsystem sowie Kraftfahrzeug
DE102017122383B4 (de) 2017-09-27 2023-10-12 Valeo Schalter Und Sensoren Gmbh Verfahren zum Betreiben einer Ultraschallsensorvorrichtung für ein Kraftfahrzeug mit Bestimmung eines Zustands eines Schallwandlerelements, Ultraschallsensorvorrichtung, Fahrerassistenzsystem sowie Kraftfahrzeug

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012220311A1 (de) * 2012-11-08 2014-05-08 Robert Bosch Gmbh Verfahren zur Detektion der Sensordegradation bei Abstandssensoren

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002131428A (ja) * 2000-10-25 2002-05-09 Mitsubishi Electric Corp 超音波障害物検出装置
DE10236879B4 (de) * 2001-08-14 2013-10-24 Denso Corporation Hindernis-Detektionsgerät und damit in Beziehung stehendes Kommunikationsgerät
DE10247971A1 (de) 2002-10-15 2004-05-06 Valeo Schalter Und Sensoren Gmbh System zur Überwachung des Nahbereichs eines Kraftfahrzeuges mit Störungserkennung und Verfahren zur Ermittlung der Störungsfreiheit eines derartigen Systems
JP4036225B2 (ja) * 2004-07-20 2008-01-23 株式会社デンソー 障害物検知装置
JP2007183185A (ja) * 2006-01-06 2007-07-19 Denso Corp 超音波センサ
JP2010014497A (ja) * 2008-07-02 2010-01-21 Nippon Soken Inc 障害物検知装置
DE102009040992B4 (de) 2009-09-10 2015-11-26 Valeo Schalter Und Sensoren Gmbh Verfahren zur Vereisungs- und Verschmutzungserkennung von Ultraschallsensoren
DE102010021960B4 (de) 2010-05-28 2021-05-06 Valeo Schalter Und Sensoren Gmbh Verrfahren zum Erkennen eines blockierten Zustands eines Ultraschallsensors eines Kraftfahrzeugs, Fahrerassistenzeinrichtung und Kraftfahrzeug
DE102011016946A1 (de) * 2011-04-13 2012-10-18 Volkswagen Ag Verfahren zum Festlegen einer Frequenz für ein Anregungssignal eines Ultraschallsensors, Fahrerassistenzeinrichtung und Kraftfahrzeug
DE102012215493B4 (de) * 2012-08-31 2023-10-26 Robert Bosch Gmbh Robustheitserhöhung von Ultraschallsystemen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012220311A1 (de) * 2012-11-08 2014-05-08 Robert Bosch Gmbh Verfahren zur Detektion der Sensordegradation bei Abstandssensoren

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2015176883A1 *

Also Published As

Publication number Publication date
DE102014107304A1 (de) 2015-11-26
WO2015176883A1 (fr) 2015-11-26

Similar Documents

Publication Publication Date Title
EP3047300B1 (fr) Procédé permettant de détecter un état de blocage d'un capteur d'ultrasons, capteur d'ultrasons et véhicule automobile
EP3084469B1 (fr) Dispositif de détection à ultrasons pour véhicule automobile, véhicule automobile et procédé correspondant
DE102010021960B4 (de) Verrfahren zum Erkennen eines blockierten Zustands eines Ultraschallsensors eines Kraftfahrzeugs, Fahrerassistenzeinrichtung und Kraftfahrzeug
WO2016091677A1 (fr) Procédé de détection d'un objet dans une zone d'ouverture d'une porte d'un véhicule automobile, système d'aide à la conduite et véhicule automobile
DE102010028829A1 (de) Verfahren und Vorrichtung zur Bestimmung der Position eines Objektes relativ zu einem Fahrzeug, insbesondere einem Kraftfahrzeug, zur Verwendung in einem Fahrerassistenzsystem des Fahrzeuges
EP3717935B1 (fr) Procédé de contrôle d'un dispositif de mesure de distance d'un véhicule à moteur comprenant au moins un capteur à ultrasons
WO2015162132A1 (fr) Procédé permettant d'identifier un état de blocage d'un capteur ultrasonore d'un véhicule automobile, dispositif de détection ultrasonore et véhicule automobile
EP2936199B1 (fr) Procédé pour vérifier l'authenticité d'un capteur d'ultrasons de véhicule automobile, unité de commande, capteur d'ultrasons, dispositif à capteur d'ultrasons et véhicule automobile
DE102013205167A1 (de) Störungsunterdrückung bei Tote-Winkel-Überwachung
EP2618177A1 (fr) Procédé de détection d'un état givré et/ou souillé d'un capteur à ultrasons dans un véhicule automobile, dispositif de capteur et véhicule automobile
DE102017118883A1 (de) Verfahren zum Betreiben einer Ultraschallsensorvorrichtung für ein Kraftfahrzeug mit Anpassung eines zeitlichen Verlaufs einer Amplitude bei frequenzmodulierten Anregungssignalen
EP2780737B1 (fr) Dispositif d'aide à la conduite pour un véhicule automobile, véhicule automobile et procédé de fonctionnement d'un dispositif d'aide à la conduite dans un véhicule automobile
WO2015176883A1 (fr) Détecteur à ultrasons doté d'un dispositif à mémoire pour véhicule automobile, système de détection, véhicule automobile ainsi que procédé de fabrication
DE102017104145B4 (de) Verfahren zum Betreiben einer Ultraschallsensorvorrichtung für ein Kraftfahrzeug mit unterschiedlicher Anregung einer Membran, Ultraschallsensorvorrichtung, Fahrerassistenzsystem sowie Kraftfahrzeug
DE102014112917B4 (de) Verfahren zum Erkennen eines blockierten Zustands eines Ultraschallsensors, Ultraschallsensorvorrichtung sowie Kraftfahrzeug
EP3602119A1 (fr) Procédé de détection d'un objet dans une zone environnante d'un véhicule automobile avec classification de l'objet, dispositif de détection à ultrasons et véhicule automobile
WO2015176885A1 (fr) Procédé d'exploitation d'un détecteur à ultrasons de véhicule automobile, dispositif de détection à ultrasons, système d'aide à la conduite, ainsi que véhicule automobile
DE102017122477B4 (de) Verfahren zum Betreiben eines Ultraschallsensors für ein Kraftfahrzeug mit Objekterkennung im Nahbereich und im Fernbereich, Ultraschallsensorvorrichtung, Fahrerassistenzsystem sowie Kraftfahrzeug
EP2772043B1 (fr) Procédé d'attribution automatique d'un indicatif spécifique à chaque capteur d'une pluralité de capteurs d'un véhicule automobile, système et dispositif informatique
WO2016079163A1 (fr) Procédé de détection d'un objet dans une zone environnant un véhicule automobile, dispositif de commande, système d'aide à la conduite et véhicule automobile
DE102014113601B4 (de) Verfahren zum Erkennen eines blockierten Zustands eines Ultraschallsensors, Ultraschallsensorvorrichtung sowie Kraftfahrzeug
DE102016109848A1 (de) Verfahren zum Betreiben einer Ultraschallsensorvorrichtung eines Kraftfahrzeugs mit Übertragung von Konfigurationsdaten, Ultraschallsensorvorrichtung sowie Kraftfahrzeug
DE102010064727B3 (de) Verfahren zum Erkennen eines blockierten Zustands eines Ultraschallsensors eines Kraftfahrzeugs, Fahrerassistenzeinrichtung und Kraftfahrzeug
DE102013021327A1 (de) Verfahren zum Betreiben einer Mehrzahl von Ultraschallsensoren eines Kraftfahrzeugs, Ultraschallsensoreinrichtung und Kraftfahrzeug

Legal Events

Date Code Title Description
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: 20161108

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: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200227

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230528

REG Reference to a national code

Ref country code: DE

Ref legal event code: R003

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20240222