WO2014202331A1 - Dispositif de détection d'environnement comprenant un transducteur ultrasonore et véhicule automobile équipé d'un dispositif de détection d'environnement de ce type - Google Patents

Dispositif de détection d'environnement comprenant un transducteur ultrasonore et véhicule automobile équipé d'un dispositif de détection d'environnement de ce type Download PDF

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Publication number
WO2014202331A1
WO2014202331A1 PCT/EP2014/060756 EP2014060756W WO2014202331A1 WO 2014202331 A1 WO2014202331 A1 WO 2014202331A1 EP 2014060756 W EP2014060756 W EP 2014060756W WO 2014202331 A1 WO2014202331 A1 WO 2014202331A1
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WO
WIPO (PCT)
Prior art keywords
sensing device
front body
membrane
environment sensing
damping
Prior art date
Application number
PCT/EP2014/060756
Other languages
German (de)
English (en)
Inventor
David Bartylla
Andre Gerlach
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN201480035418.4A priority Critical patent/CN105339099B/zh
Priority to EP14727790.9A priority patent/EP3010652A1/fr
Publication of WO2014202331A1 publication Critical patent/WO2014202331A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B06B1/0662—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
    • B06B1/0681—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface and a damping structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • 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
    • G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device

Definitions

  • the invention also relates to a motor vehicle in which at least one such
  • ultrasound signals are usually transmitted through a medium such as air or water from an emitter to a receiver or transmitted from an emitter into an environment or detected by an object located in the surrounding ultrasonic signals and the runtime and / or
  • these sound transducers are predominantly resonant oscillators, which consist of solids and one or more piezo elements.
  • resonant oscillator are, among others, called piezobased as thickness vibrator
  • Ultrasonic transducer known as prior art.
  • a basic structure of a known environment sensing device is shown in Fig. 4, wherein the thickness of the oscillator 91 of
  • Environment sensing device 9 is arranged on an outer skin 92 of a motor vehicle bumper (not shown) and has a flat piezoelectric element 912 as an ultrasonic transducer element, which is embedded in a solid, a so-called resonant body, the is disposed between a front body 91 1 of the resonance body and a rear body 913 of the resonance body and coupled thereto.
  • a specific example of an ultrasonic sensor for a motor vehicle can be found in DE 10 2007 046 031 A1.
  • the ultrasonic sensor described therein is formed with an acoustic tuning layer which is coupled to a vibration element.
  • the vibrating element generates ultrasonic waves that are emitted into the environment of the motor vehicle, and the acoustic tuning layer is reflected by
  • the ultrasonic sensor is here mounted on a bumper or a bumper of the motor vehicle, for example in a hole in the bumper, wherein a receiving surface of the ultrasonic transducer is exposed to the surroundings of the motor vehicle.
  • a disadvantage of the known state of the art in the field of ultrasonic transducers can be found in the fact that they usually provide no or only a complex external damping of the vibration behavior, which usually leads to increased installation costs and additionally required space. However, such a damping is extremely advantageous for the vibration behavior of the ultrasonic transducers in order to achieve adequate for the environment sensing on and Ausschwing , and should be provided in any case, but without bringing structural or constructive disadvantages.
  • An environment sensing device which provides a solution to the problems discussed above has an ultrasonic transducer comprising at least one transducer element and at least one resonator body and a diaphragm for sound transmission, wherein the environmental sensing device is adapted to transmit and transmit ultrasonic signals / or to receive.
  • the resonator body has a front body and a rear body and is at an end face of the front body, ie at a to
  • Membrane-facing portion of the front body coupled to the membrane, wherein the front body and / or the rear body of the resonator made of at least one composite material, also called composite material or composite material, as
  • the front body and the rear body of the resonance body can be made of different composite materials, for example based on a metal material, based on a ceramic material or based on a plastic material, or a combination of these.
  • the acoustic wave emitted by the transducer element for environment sensing leaves the environment sensing arrangement preferably in the direction of the front side of the front body, also referred to as front mass, wherein rearward radiation is completely suppressed in the best case.
  • the back body also referred to as back mass, for damping the vibration relative to the area in which no radiation is desired.
  • transducer element is to be understood broadly and includes, for example, electric-acoustic transducers which operate on electrostatic, magnetostrictive, piezoelectric effects or combinations of these effects.
  • the transducer element may in particular be a piezoelectric element and the
  • Environment sensing device can be understood as a piezoelectric environment sensing device or as a piezoelectric environment sensing device.
  • the so-called membrane of the environmental sensing device is formed for example by an outer skin of a bumper, side mirror or door region of a motor vehicle, wherein the transducer element or the transducer elements and the or
  • the membrane is formed from a thin layer of material, which is made for example from a customary for the outer skin of a motor vehicle polymer material.
  • the membrane preferably has a thickness of between 0.1 mm and 4 mm, particularly preferably less than 1 mm.
  • the coupling of the resonator at the end face with the membrane can be done directly or indirectly, but in any case so that an acoustic coupling is sufficiently possible, so that acoustic radiation patterns can be transmitted.
  • the direct coupling can be accomplished for example by a press fit, press fit, such as by screwing, or by an adhesive.
  • Indirect coupling may mean that another layer of material is provided between the resonator body and the membrane, for example, a liquid such as a gel or an oil. This additional material layer can be provided in particular to the acoustic coupling between the
  • an integration of damping in the resonance body is achieved by using so-called composite materials.
  • the resonator body can by means of various manufacturing methods to such a composite material body or a composite of such
  • Composite material body are made, inter alia, by the following methods:
  • both the front body and the back body can be made by one of the above manufacturing methods.
  • both the front body and the back body may be manufactured by one of the above manufacturing methods.
  • different methods of preparation of the front body and the rear body can be used.
  • various methods of fabrication may be used in one of the front body and the rear body or in both the front body and the rear body.
  • Resonance system is required to achieve adequate for the environment sensing on-and-off, to compensate for component tolerances and the
  • the damping mechanism may be formed by projections on the front body and / or the rear body, which are mounted in a vibration-damping material,
  • a silicone-based material such as a silicone foam or the like.
  • a porous silicone foam can be used, such as the commercially available silicone foam Fermasil.
  • the front side of the front body coupled to the membrane is plate-shaped.
  • the plate shape may have a widthwise dimension greater than a heightwise direction or the height direction, with a preferred height of the plate-shaped end side being between 0.1 mm and 30 mm, and a preferred width of the plate-shaped end side being between 0.5 mm and 0.5 mm 30mm is.
  • the resonance body between its plate-shaped end face and the transducer element at least partially a width dimension which is smaller than the width dimension of the end face. Accordingly, a paragraph or a stage between the
  • plate-shaped end face refers to a part or portion of the front body, which is located directly on its side facing the membrane and which is in the form of a plate, that is called its dimension in width, also called width dimension, greater than its dimension in the height is, too Height dimension called.
  • the resonator body preferably has a double-T-shaped longitudinal section, also called a dumbbell-shaped longitudinal section, or alternatively a T-shaped longitudinal section or a longitudinal section in the form of a triangle, which merges into the plate form at its front-side tip. It can thereby be achieved that the bending stiffness of the membrane, as for example in the case of the outer skin of a motor vehicle
  • Bumpers as a membrane according to the invention not only by the material of the bumper is defined, but also by the ultrasonic transducer or by its structural design, that is, the plate shape of the front side of the front body.
  • the plate shape may have a widthwise dimension greater than a heightwise direction or the height direction, with a preferred height of the plate-shaped end side being between 0.1 mm and 30 mm, and a preferred width of the plate-shaped end side being between 0.5 mm and 0.5 mm 30mm is.
  • this changes the structural characteristics of the bumper this undesirably affects the resonant frequency of the structure.
  • the oscillation behavior of the environmental sensing device according to the invention can be advantageously influenced by the plate of the resonance body.
  • the measure of influence is of the
  • Rigidity ratio of outer skin to front body plate dependent If the ratio is small, the temperature influence by the material of the outer skin is low.
  • the thickness ratio must be chosen so that the influence of the outer skin is sufficiently low.
  • the bumper of the motor vehicle in the area in which the environment sensing device is to be installed designed correspondingly thinner than elsewhere.
  • Such local dilutions can be incorporated both by subsequent machining, for example by milling, or even in the manufacturing process, for example in injection molding.
  • the cross section corresponds to the plate-shaped end face of the front body of a corresponding
  • a selected geometric shape for example: a circular shape, whereby the plate-shaped end face of the front body generally assumes a disk shape;
  • a rectangular shape in particular a square shape or the shape of a rectangle with rounded corners, in particular with different dimensions for different directional characteristics in the horizontal and / or vertical direction; or
  • the environment sensing device of the invention may further be configured such that the transducer element and the resonance body are arranged biased by pressure by at least one tensioning element, preferably in the order rear body,
  • a clamping element can be a screw or the like.
  • Such a design of the ultrasonic transducer is particularly used in power ultrasound, since there high mechanical stresses on the
  • piezoceramic transducer element can act.
  • the arrangement is biased by, for example, a screw on pressure, so that the ultrasonic transducer can be subjected to more stress.
  • the transducer element and the resonance body are coupled together by a press fit or by gluing.
  • the choice of coupling can be determined by the expected field of application, for example by specifying the shake resistance of the arrangement.
  • the adhesion or the clamping contact also additional damping mechanisms can be provided.
  • a resonator manufactured in this way is particularly suitable for all vehicles or moving machines which generally use environmental sensing.
  • the invention can be used in particular in those environmental sensors which, for example, in the front and / or rear bumper of a vehicle for the purpose of parking assistance and / or collision avoidance are provided.
  • ultrasonic transducers are used which can both emit ultrasonic waves and receive ultrasonic waves. But it can also be provided, the
  • a motor vehicle having a bumper, side mirror or door section and a surrounding sensing device as described above, wherein the membrane of the surrounding sensing device is formed by an outer skin of the bumper, the side mirror or the door section, and wherein the ultrasonic transducer, that is, the transducer element and the resonance body , hidden behind the outer skin are arranged.
  • the environment-sensing device can in one
  • Ultrasonic system to be installed which comprises a group of Ultraschallensiinditch, wherein at least one, preferably all Ultraschallensiinditch the previously described features of the environment sensing device comprise.
  • the ultrasound system can be set up, for example, to detect a sub-environment of the motor vehicle.
  • the front-side ultrasonic sensors may detect a vehicle front-end environment and / or the vehicle
  • Ultrasonic sensors in the side area for detecting a side area of the vehicle and / or the ultrasonic sensor devices in the rear area for detecting a rear environment of the vehicle are each assigned to such an ultrasound system. Typically, this will be four to six
  • Ultraschallensiichtonne mounted in a bumper with only a maximum of four Ultraschallensiindonne are mounted with approximately the same direction of view.
  • ultrasonic sensors are also positioned in the front bumper so that they have their detection area to the left and to the right.
  • ultrasonic sensors may also be positioned in the rear bumper so that they detect an area to the left and right of the motor vehicle.
  • the ultrasound system furthermore has a control device assigned to the respective group and a signal processing device.
  • both ultrasonic sensors used laterally in the front and rear bumpers can be used, as well as those
  • Ultrasonic sensors which are installed in a side mirror or in a door section.
  • the present invention at least in the course of a preferred embodiment of the environmental sensing device according to the invention, further allows a
  • damping components can be avoided, whereby the assembly of the environment sensing device can be simplified by means of the integration of the damping in the components of the resonator, savings of additional vibration damping components are achieved, space for the
  • Inventive environment sensing device can be reduced, and a
  • Fig. 1 is a longitudinal section of a basic structure of a first preferred
  • Fig. 2 is a longitudinal section of a basic structure of a second preferred
  • Fig. 3 is a longitudinal section of a basic structure of a third preferred
  • Embodiment of the environment sensing device according to the invention is a longitudinal section of a basic structure of an ultrasonic transducer according to the prior art.
  • Preferred embodiments of the invention are described in detail below.
  • Fig. 1 shows an environment sensing device 1 according to a first preferred
  • Embodiment of the invention in lateral cross-sectional view in a non-activated state.
  • the environment sensing device 1 comprises an ultrasonic transducer 1 1 and a membrane 12, wherein the ultrasonic transducer 1 1 of a compound of a
  • the front body 1 1 1, the transducer element 1 12 and the rear body 1 13 may alternatively assume a different shape than a cylindrical shape, such as the shape of a cuboid or the like.
  • the front body 1 1 1 is coupled to the membrane 12 with a front side facing the membrane 12. This means that in the illustrated embodiment, the end face forms a contact surface to the membrane 12.
  • the coupling between the front body 1 1 1 and the membrane 12 can be made directly and indirectly, which is referred to with an indirect contact, that between the end face and the membrane 12 at least one layer of another material is arranged, for example, a liquid layer such as oil or Gel to improve the acoustic coupling.
  • a mechanical coupling may be present between the end face and the membrane 12, for example by screwing or jamming the front body 1 1 1 in the membrane 12, or the front body 1 1 1 may also be glued to the membrane 12.
  • the resonator 1 1 1, 1 13 may be constructed in this embodiment of a front body 1 1 1 of a polymer-filled metal foam and a comparable back body 1 13.
  • a Practical embodiment shows a glass fiber filled epoxy as a material for both the front body and the back body. This allows the properties of the
  • Converter such as damping, resonance frequency and sensitivity, as desired.
  • Fig. 2 is an environment sensing device 2 according to a second preferred
  • Embodiment of the invention shown in side sectional view in a non-activated state.
  • the environment sensing device 2 comprises an ultrasonic transducer 21 and a diaphragm 22, the ultrasonic transducer 21 consisting of a combination of a front body 21 1, a transducer element 212 and a rear body 213, in this order.
  • the front body 21 1 is connected to the diaphragm 22 facing end face 21 1 1, also called end portion 21 1 1 or end portion 21 1 1, coupled to the membrane 22. This means that in the illustrated embodiment, the end face 21 1 1 forms a contact surface to the membrane 22.
  • the coupling between the front body 21 1 and the membrane 22 can take place indirectly and directly, wherein an indirect contact means that between the end face 21 1 1 and the membrane 22 at least one layer of another material is arranged, for example, a liquid layer such as Oil or gel to improve the acoustic coupling.
  • an indirect contact means that between the end face 21 1 1 and the membrane 22 at least one layer of another material is arranged, for example, a liquid layer such as Oil or gel to improve the acoustic coupling.
  • Between the end face 21 1 1 and the membrane 22 may alternatively be a mechanical coupling, for example by a screw or a jamming of the front body 21 1 in the membrane 22, or the front body 21 1 may also be glued to the membrane 22.
  • the membrane 22 is formed thinner in this embodiment in a contact area between the end face 21 1 1 and membrane 22 as outside the contact area, so that the
  • Front body 21 1 in the contact area in a recess 221 in the membrane 22 is at least partially sunk.
  • the front body 21 1 is in the second preferred embodiment, as seen in Figure 2, formed in section in a double-T-shape, wherein the end face 21 1 1 of the front body 21 1 is plate-shaped, that is as a plate or plate-like is trained.
  • a diameter of the cross section of the end face 21 1 1 is greater than the cross section of a central portion 21 12 of the front body 21 1 and approximately the same size as the cross section of a back 21 13 of the front body 21, wherein each between the front side 21 1 1 and middle part 21 12 and between the middle part 21 12 and rear 21 13 of the front body 21 1 a paragraph is provided so that the double-T shape of the front body 21 1 comes about.
  • the entire ultrasonic transducer 21 is rotationally symmetrical in this embodiment, which means that both the cross section of
  • Front body 21 1, the cross section of the transducer element 212 and the cross section of the rear body 213 form a circular shape.
  • the cross section of one of these components or all of these components may also have an ellipse shape, a rectangular shape, in particular a square shape or the shape of a rectangle with rounded corners, or a combination of the aforementioned geometric shapes.
  • the end face 21 1 1 or end portion 21 1 1 of the front body 21 1 also has a circular shape, whereby the end face 21 1 1 of the front body 21 1 takes the form of a disc in this embodiment.
  • the recess 221 of the membrane 22 corresponds to the cross-sectional shape of the end face 21 1 1 of the front body 21 1.
  • Front body 21 1 be composed of a polymer-filled honeycomb structure and a back body 213 of a polymer material filled with ceramic particles.
  • honeycomb may be formed of a metal, such as aluminum, and filled with a polymer, such as epoxy. Since the vibration damping at the transition from the metal to the polymer is particularly large, it is preferable to have arrangements which, based on the volume of the total body, have a large total area of this transitional surface.
  • FIG. 3 an environment sensing device 3 according to a third preferred embodiment of the invention in side sectional view in a non-activated state is shown.
  • the environmental sensing device 3 comprises an ultrasonic transducer 31 and a
  • the ultrasonic transducer 31 consists of a compound of a front body 31 1, a transducer element 312 and a rear body 313.
  • the front body 31 1 is coupled to the diaphragm 32 facing end face 31 1 1 with the membrane 32.
  • the membrane 32 is made thinner than in a contact area between the end face 31 1 1 and the membrane 32
  • the front body 31 1 is formed in the third preferred embodiment in section in a basic double T-shape, wherein the end face 31 1 1 of the front body 31 1 is plate-shaped.
  • Ultrasonic transducer 31 has in principle the same structure as the ultrasonic transducer 21st the second preferred embodiment, wherein the diameter of the cross section of the end face 31 1 1 is greater than the cross section of a central portion 31 12 of the front body 31 1 and approximately the same size as the cross section of a back 31 13 of the front body 31, and wherein in each case between the end face 31st 1 1 and middle part 31 12 and between the middle part 31 12 and back 31 13 of the front body 31 1 a paragraph is provided, so that a double T-shape of the front body 31 1 is formed.
  • Front body 31 1 made of aluminum with admixed damping-enhancing materials, such as gel-filled balls, and constructed of a back body 313 of a polypropylene with embedded glass fibers.
  • Damping property of the environment sensing device 3 still reinforce, are in this preferred embodiment further between the end face 31 1 1 and the back 31 13 of the front body 31 1, ie at the central portion 31 12 projections in the form of ribs 31 14 or in the form of a protruding rib structure 31st 14 provided.
  • the rib structure 31 14 is by a damping mechanism 4 within a
  • the damping material container 41 is fixed to the membrane 32, for example by gluing, so that the recess 321 of the membrane 32 is completely enclosed together with the ultrasonic transducer 31.
  • the end face 31 1 1 or end portion 31 1 1 of the front body 31 1 has a circular shape, whereby the end face 31 1 1 of the front body 31 1 takes the form of a disc in this preferred embodiment.
  • the recess 321 of the membrane 32 corresponds to the cross-sectional shape of the end face 31 1 1 of the

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

La présente invention concerne un dispositif de détection d'environnement comprenant un transducteur ultrasonore pourvu d'au moins un élément transducteur et d'au moins un corps de résonance, ainsi qu'une membrane pour la transmission de sons, ce dispositif de détection d'environnement étant conçu pour envoyer et/ou recevoir des signaux ultrasonores. Le corps de résonance comporte une partie avant et une partie arrière et est relié à la membrane par une face de la partie avant, ladite partie avant et/ou ladite partie arrière du corps de résonance étant composées d'au moins un matériau composite. La présente invention concerne en outre un véhicule automobile équipé d'un pare-chocs, d'un rétroviseur latéral ou d'une partie de porte et d'au moins un dispositif de détection d'environnement de ce type, la membrane du dispositif de détection d'environnement étant formée par une peau extérieure du pare-chocs, du rétroviseur latéral ou de la partie de porte et le transducteur ultrasonore étant dissimulé derrière cette peau extérieure.
PCT/EP2014/060756 2013-06-20 2014-05-26 Dispositif de détection d'environnement comprenant un transducteur ultrasonore et véhicule automobile équipé d'un dispositif de détection d'environnement de ce type WO2014202331A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201480035418.4A CN105339099B (zh) 2013-06-20 2014-05-26 具有超声转换器的周围环境感测装置和具有这种周围环境感测装置的机动车
EP14727790.9A EP3010652A1 (fr) 2013-06-20 2014-05-26 Dispositif de détection d'environnement comprenant un transducteur ultrasonore et véhicule automobile équipé d'un dispositif de détection d'environnement de ce type

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310211619 DE102013211619A1 (de) 2013-06-20 2013-06-20 Umfeldsensiereinrichtung mit Ultraschallwandler, und Kraftfahrzeug mit einer derartigen Umfeldsensiereinrichtung
DE102013211619.5 2013-06-20

Publications (1)

Publication Number Publication Date
WO2014202331A1 true WO2014202331A1 (fr) 2014-12-24

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EP (1) EP3010652A1 (fr)
CN (1) CN105339099B (fr)
DE (1) DE102013211619A1 (fr)
WO (1) WO2014202331A1 (fr)

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US20160139250A1 (en) * 2013-06-20 2016-05-19 Robert Bosch Gmbh Surroundings-sensing device having a modular ultrasonic transducer, and motor vehicle having such a surroundings-sensing device
CN111373279A (zh) * 2017-11-22 2020-07-03 法雷奥开关和传感器有限责任公司 具有超声波传感器并且具有包括加强元件的阻尼元件的用于机动车辆的组件以及设备

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DE102013211619A1 (de) 2014-12-24
CN105339099A (zh) 2016-02-17
CN105339099B (zh) 2018-12-14
EP3010652A1 (fr) 2016-04-27

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