WO2023110303A1 - System zur erfassung von wenigstens einem objekt in einer umgebung eines fahrzeugs sowie fahrzeug mit solch einem system - Google Patents
System zur erfassung von wenigstens einem objekt in einer umgebung eines fahrzeugs sowie fahrzeug mit solch einem system Download PDFInfo
- Publication number
- WO2023110303A1 WO2023110303A1 PCT/EP2022/082619 EP2022082619W WO2023110303A1 WO 2023110303 A1 WO2023110303 A1 WO 2023110303A1 EP 2022082619 W EP2022082619 W EP 2022082619W WO 2023110303 A1 WO2023110303 A1 WO 2023110303A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ultrasonic
- frequency
- sensor unit
- signals
- ultrasonic sensor
- 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
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
- G01S7/539—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
-
- 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
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/46—Indirect determination of position data
-
- 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
-
- 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
- G01S2015/937—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details
Definitions
- the invention relates to a system for detecting at least one object in the surroundings of a vehicle.
- ultrasonic sensor systems for detecting the vehicle environment are widespread.
- the problem with conventional ultrasonic sensor systems is that typically only distance measurements can be carried out using the ultrasonic sensors.
- these ultrasonic sensors are usually arranged in a horizontal plane on the vehicle, which means that a height determination can only be implemented very imprecisely, since data with information about the vertical nature of objects can only be determined inadequately.
- the invention relates to a system for detecting at least one object in the area surrounding a vehicle, having at least one ultrasonic sensor unit for emitting ultrasonic signals and for receiving ultrasonic echo signals reflected, in particular on the at least one object in the area surrounding the vehicle, and a processing unit, wherein the processing unit is set up to excite the ultrasonic sensor unit with a first frequency to emit first ultrasonic signals and the first ultrasonic signals upon reflection on the object and reception by means of the ultrasonic sensor unit as the first to detect ultrasonic echo signals, and additionally to stimulate the ultrasonic sensor unit with a second frequency to emit second ultrasonic signals and to detect the second ultrasonic signals upon reflection on the object and reception by means of the ultrasonic sensor unit as second ultrasonic echo signals, and depending on the received first ultrasonic echo signals and second ultrasonic echo signals, the object in to detect the surroundings of the vehicle and to determine a height of the object.
- the transmitted ultrasonic signals each have a different radiation characteristic in the form of different opening angles due to the different excitation frequencies.
- the higher the frequency the smaller the opening angle of the transmitted ultrasonic signals.
- the size of the conical detection areas defined by the opening angles is therefore dependent on the excitation frequency of the ultrasonic sensor unit.
- additional information in particular also in the vertical plane, can consequently be recorded with a single ultrasonic sensor unit, which can be used for a more precise determination of the height of the object.
- the ultrasonic sensor unit used as standard for determining the distance does not have to be redesigned or only insignificantly, as a result of which corresponding costs for a redesign can be dispensed with.
- the system it is also conceivable for the system to have further ultrasonic sensor units, which are arranged horizontally, in particular for determining the distance, in order to further increase the information density and thus the accuracy of the height determination.
- Any object outside the vehicle can be understood as an object, including, for example, pedestrians, curbs or posts.
- height is to be understood as meaning the extent of the object in the vertical direction, ie the distance between the ground and the highest point of the object perpendicular thereto.
- the vehicle can be, for example, a passenger car, a truck or a motorized two-wheeler in particular.
- the ultrasonic sensor unit has in particular an ultrasonic transceiver, which can convert electrical signals into ultrasonic signals by means of a membrane or convert ultrasonic echo signals into electrical signals by means of the membrane.
- the first and the second frequency, which excite the membrane are different from one another.
- the membrane can, for example, be designed as a piezo element or have one.
- the processing unit can, for example, be in the form of a microcontroller and, depending on requirements, have appropriate evaluation and storage units for determining the height of the object.
- the term determining is also to be understood as meaning an estimation.
- One embodiment of the invention provides that the processing unit is set up to select the first frequency and the second frequency in such a way that the first frequency corresponds to a main resonant frequency of the ultrasonic sensor unit and that the second frequency corresponds to a frequency of a higher vibration mode of the ultrasonic sensor unit matches, and in particular that the second frequency matches a harmonic resonance frequency of the ultrasonic sensor unit. It is advantageous here that the ultrasonic sensor unit operates at the main resonant frequency and at its higher vibration mode or
- Harmonics can be controlled particularly reliably.
- the corresponding frequencies are adapted to the bending behavior of the membrane of the ultrasonic sensor unit.
- the main resonant frequency is the frequency at which the membrane of the ultrasonic sensor unit exhibits a corresponding bending behavior due to the excitation with this frequency, this frequency usually also being referred to as the fundamental frequency.
- the frequency of a higher oscillation mode is to be understood as meaning a frequency which is higher than the basic frequency and at which the membrane of the ultrasonic sensor unit has a corresponding oscillation behavior which is also referred to as the natural oscillation form.
- the harmonic frequencies are in turn integral multiples of the main resonant frequency.
- the first frequency can be 48 kHz, as the fundamental frequency
- the second frequency can be 144 kHz, as the third harmonic.
- the ultrasonic sensor unit when the ultrasonic sensor unit is excited with the basic frequency, the ultrasonic sensor unit also oscillates as a side effect with a frequency that is correspondingly harmonic to the basic frequency.
- the ultrasonic signals have a significantly smaller amplitude in the harmonic range than when the ultrasonic sensor unit is specifically excited with the harmonic frequency. Consequently, the height can also be determined as a function of the amplitude ratio between the amplitude of the secondary excitation and the amplitude of the targeted harmonic excitation.
- the amplitude can also be so small that it is not possible to determine the height reliably or this can only be implemented in the near-field range.
- An embodiment of the invention provides that the processing unit is set up to excite the ultrasonic sensor unit with the first frequency and the second frequency essentially at the same time.
- both the first and second ultrasonic signals are emitted in such a way that both ultrasonic signals are emitted before the first and second ultrasonic echo signals are received.
- This can be implemented, for example, in that the excitation signal for the ultrasonic sensor unit excites both the first and the second frequency.
- an excitation signal for the first and for the second frequency can be fed to the ultrasonic sensor unit in direct succession in terms of time in order to correspondingly stimulate it.
- a further embodiment of the invention provides that the processing unit is set up to determine the height of the object as a function of amplitudes and/or phases and/or flight times of the first ultrasonic echo signals and second ultrasonic echo signals.
- the advantage here is that this represents a simple method of determining the height of the object.
- the amplitude of the ultrasonic echo signals is to be understood as meaning the deflection of the respective ultrasonic echo signal.
- Phase is to be understood as meaning the oscillation state of the respective ultrasonic echo signal at a specific point and at a specific point in time.
- the flight time is the time span between the transmission of the respective ultrasonic signal and the receipt of the associated ultrasonic echo signal.
- the processing unit is set up to determine the height of the object as a function of a ratio of the amplitudes of the first ultrasonic echo signals and second ultrasonic echo signals.
- the advantage here is that this represents a further simple possibility of determining the height of the object.
- the received ultrasonic echo signals have different amplitude values, depending on whether they were excited using the first or the second frequency.
- the ratio of the amplitudes of the ultrasonic echo signals is in this case particularly dependent on the sound pressure, sound damping and opening angle of the transmitted ultrasonic signals and in particular the corresponding excitation frequency.
- corresponding amplitude ratios can be determined in advance and stored by transmitting the first and second ultrasonic signals in a test environment for test objects with different heights and assigning the received first and second ultrasonic echo signals with regard to the amplitude ratios to the corresponding object heights .
- the system can then determine the object height by again determining the amplitude ratio between the first and second ultrasonic echo signals and comparing it with the stored amplitude ratios. If the detected amplitude ratio is, for example, between two stored amplitude ratios, which were detected in the test environment for test objects with a height of 40 cm or 50 cm, it can be concluded that the object now detected has a height between 40 and 50 cm having.
- the invention also relates to a vehicle, in particular a passenger car, having a system according to the invention.
- FIG. 1 shows in schematic form a vehicle designed according to the invention using an embodiment of the system according to the invention.
- FIG 2 shows an ultrasonic sensor unit controlled according to the invention in detail.
- Description of exemplary embodiments 1 shows in schematic form a vehicle designed according to the invention using an embodiment of the system according to the invention.
- a vehicle 100 designed according to the invention e.g. a passenger car, which is designed with an embodiment of the system 10 according to the invention is shown in a schematic side view.
- the system 10 may comprise an ultrasonic sensor unit 20 embodied as both an ultrasonic transceiver and an ultrasonic transceiver, and a processing unit 30 for controlling the operation of the ultrasonic sensor unit 20.
- an ultrasonic sensor unit 20 embodied as both an ultrasonic transceiver and an ultrasonic transceiver
- a processing unit 30 for controlling the operation of the ultrasonic sensor unit 20.
- the processing unit 30 is connected to the ultrasonic sensor unit 20 via one or more detection and control lines. In this way, the processing unit 30 can in each case control the operation of the ultrasonic sensor unit 20 and/or query its status or receive or actively call up corresponding data or signals from the ultrasonic sensor unit 20 .
- the processing unit 30 is designed and has means that enable both the operation of transmission via the ultrasonic sensor unit 20 and reception via the ultrasonic sensor unit 20 in the manner according to the invention.
- appropriate means for storing, processing and evaluating received first and second ultrasonic echo signals 25, 26 can be provided, which are not shown here in detail.
- the processing unit 30 is set up here in particular to excite the ultrasonic sensor unit 20 with a first frequency to emit first ultrasonic signals 21 and to detect the first ultrasonic signals 21 upon reflection on the object 110 and reception by means of the ultrasonic sensor unit 20 as first ultrasonic echo signals 25, and additionally the ultrasonic sensor unit 20 with a second frequency to emit second ultrasonic signals 22 and to detect the second ultrasonic signals 22 upon reflection on the object 110 and reception by means of the ultrasonic sensor unit 20 as second ultrasonic echo signals 26 .
- the processing unit 30 is set up to detect the object 110 in the vicinity of the vehicle 100 as a function of the received first ultrasonic echo signals 25 and second ultrasonic echo signals 26 and also to detect a height H as a function of the received first ultrasonic echo signals 25 and second ultrasonic echo signals 26 of the object 110 to be determined.
- the object 110 can be a post here, for example, which has a height H from the ground.
- the processing unit 30 can be set up to determine the height H of the object 110 as a function of amplitudes and/or phases and/or flight times of the first ultrasonic echo signals 25 and second ultrasonic echo signals 26 .
- the processing unit 30 can be set up to determine the height H of the object 110 as a function of a ratio of the amplitudes of the first ultrasonic echo signals 25 and second ultrasonic echo signals 26, for example by comparing the determined amplitude ratio with previously determined and stored amplitude ratios , which were detected in the case of corresponding test objects with a predetermined height, are compared and a corresponding height H of the object 110 is determined therefrom.
- the ultrasonic sensor unit 20 can be operated in a first period as an ultrasonic transmitter for emitting the first and second ultrasonic signals 21, 22, whereas in a subsequent second period this ultrasonic sensor unit 20 is operated as an ultrasonic receiver in order to receive the first and second ultrasonic echo signals 25, 26 as a direct echo to recieve.
- a further ultrasonic sensor unit can function as an ultrasonic transmitter and thus emit a first and second ultrasonic signal 21, 22 as a transmission signal.
- the ultrasonic sensor unit 20 can serve as an ultrasonic receiver for receiving the first and second ultrasonic echo signals 25, 26.
- a so-called cross echo is thus determined, in which case a first transceiver emits the first and second ultrasonic signals 21, 22 and a second transceiver receives the first and second ultrasonic echo signals 25,26.
- the combination of direct-echo operation and cross-echo operation can consequently be selected as desired, with at least two appropriately designed ultrasonic sensor units having to be present in cross-echo operation.
- the processing unit 30 can be set up to select the first frequency and the second frequency in such a way that the first frequency corresponds to a main resonant frequency of the ultrasonic sensor unit 20 and that the second frequency corresponds to a frequency of a higher vibration mode of the ultrasonic sensor unit 20, where the second frequency corresponds, for example, to a harmonic resonance frequency of ultrasonic sensor unit 20, particularly preferably to the third harmonic.
- processing unit 30 can be set up to excite the ultrasonic sensor unit 20 with the first frequency and the second frequency essentially at the same time.
- FIG 2 shows an ultrasonic sensor unit controlled according to the invention in detail.
- An ultrasonic sensor unit 20 is shown, for example from the system according to FIG. 1, again in a side view.
- the ultrasonic sensor unit 20 has a membrane 28, which can be excited by a processing unit 30, not shown here, according to the invention, with a first frequency and a second frequency.
- the membrane 28 vibrates back and forth in the direction of the arrow and generates the corresponding first ultrasonic signals 21 and second ultrasonic signals 22.
- the first frequency corresponds to the main resonance frequency of the ultrasonic sensor unit 20 or the membrane 28, a first radiation characteristic 23 results, which is shown as a solid-hatched area.
- a second emission characteristic 24 results, which is shown as a hatched line Surface - io - is shown. It can be clearly seen here that the opening angle of the first emission characteristic 23 is larger than the opening angle of the second emission characteristic 24 . This in turn results in different first and second ultrasonic echo signals 25, 26 for the transmitted first and ultrasonic signals 21, 22
- Information in the vertical direction which can be used to determine the height of an object 100 accordingly.
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- 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
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/715,865 US20250172678A1 (en) | 2021-12-13 | 2022-11-21 | System for detecting at least one object in the surroundings of a vehicle, and vehicle comprising such a system |
| CN202280082525.7A CN118401861A (zh) | 2021-12-13 | 2022-11-21 | 检测车辆的周围环境中的至少一个对象的系统以及具有这种系统的车辆 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021214203.6 | 2021-12-13 | ||
| DE102021214203.6A DE102021214203A1 (de) | 2021-12-13 | 2021-12-13 | System zur Erfassung von wenigstens einem Objekt in einer Umgebung eines Fahrzeugs sowie Fahrzeug mit solch einem System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023110303A1 true WO2023110303A1 (de) | 2023-06-22 |
Family
ID=84440072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2022/082619 Ceased WO2023110303A1 (de) | 2021-12-13 | 2022-11-21 | System zur erfassung von wenigstens einem objekt in einer umgebung eines fahrzeugs sowie fahrzeug mit solch einem system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250172678A1 (de) |
| CN (1) | CN118401861A (de) |
| DE (1) | DE102021214203A1 (de) |
| WO (1) | WO2023110303A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024101219A1 (de) * | 2024-01-17 | 2025-07-17 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Betreiben eines Fahrzeugs auf einer abschüssigen Fahrbahn, elektronisches Fahrzeugführungssystem sowie Fahrzeug |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015111264A1 (de) * | 2015-07-13 | 2017-01-19 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Erfassen eines Objekts in einem Umgebungsbereich eines Kraftfahrzeugs durch Aussenden von Ultraschallsignalen mit unterschiedlicher Richtcharakteristik, Fahrerassistenzsystem sowie Kraftfahrzeug |
| DE102018103490A1 (de) * | 2018-02-16 | 2019-08-22 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Bestimmen einer Höhe eines Objekts in einem Umgebungsbereich eines Kraftfahrzeugs durch Bestimmung von Richtungsanteilen in einem Ultraschallsignal, Recheneinrichtung, Ultraschallsensorvorrichtung sowie Fahrerassistenzsystem |
| US20210063148A1 (en) * | 2018-01-17 | 2021-03-04 | Robert Bosch Gmbh | Method and device for operating an acoustic sensor |
| EP3602119B1 (de) * | 2017-03-29 | 2021-06-30 | Valeo Schalter und Sensoren GmbH | Verfahren zum erfassen eines objekts in einem umgebungsbereich eines kraftfahrzeugs mit klassifizierung des objekts, ultraschallsensorvorrichtung sowie kraftfahrzeug |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10699136B2 (en) * | 2016-01-29 | 2020-06-30 | Faraday & Future Inc. | System and method for camera-based detection of object heights proximate to a vehicle |
| JP6722066B2 (ja) * | 2016-08-29 | 2020-07-15 | 株式会社Soken | 周辺監視装置及び周辺監視方法 |
| KR20180039942A (ko) * | 2016-10-11 | 2018-04-19 | 현대오트론 주식회사 | 초음파 센서 장치 및 초음파 센서 장치의 센싱 방법 |
| JP7243171B2 (ja) | 2018-12-18 | 2023-03-22 | 株式会社Soken | 物体検知装置 |
| DE102019205565A1 (de) * | 2019-04-17 | 2020-10-22 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Bewerten einer Objekthöhe mittels von einem an einem Fahrzeug angebrachten Ultraschallsensor empfangenen Ultraschallsignalen |
| JP7205368B2 (ja) | 2019-04-23 | 2023-01-17 | 株式会社Soken | 物体検知装置 |
| DE102019207688A1 (de) * | 2019-05-26 | 2020-11-26 | Robert Bosch Gmbh | Verfahren und Fahrerassistenzsystem zur Klassifizierung von Objekten in der Umgebung eines Fahrzeugs |
| KR102333240B1 (ko) * | 2019-12-18 | 2021-12-01 | 현대모비스 주식회사 | 차량용 물체 인식 장치 및 방법 |
| DE102020212381A1 (de) * | 2020-09-30 | 2022-03-31 | Continental Automotive Gmbh | Verfahren zur Charakterisierung eines Objekts in einer Umgebung eines Kraftfahrzeugs |
| DE102020126172A1 (de) * | 2020-10-07 | 2022-04-07 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum vermessen eines seitlichen umfelds eines fahrzeugs, messvorrichtung und fahrzeug |
| WO2022091946A1 (ja) * | 2020-10-30 | 2022-05-05 | 株式会社デンソー | 制御装置、移動体の駆動システム、及びプログラム |
| DE102020215255A1 (de) * | 2020-12-03 | 2022-06-09 | Continental Automotive Gmbh | Verfahren zur Höhenklassifikation von Objekten mittels Ultraschallsensorik |
| CN117063088A (zh) * | 2021-05-13 | 2023-11-14 | 株式会社爱信 | 物体检测装置 |
| JP7563317B2 (ja) * | 2021-07-09 | 2024-10-08 | 株式会社アイシン | 物体検出装置、物体検出方法、及びプログラム |
| DE102021208072A1 (de) * | 2021-07-27 | 2023-02-02 | Continental Autonomous Mobility Germany GmbH | Verfahren zur Höhenschätzung von Objekten mittels Ultraschallsensorik |
| DE102021210082B3 (de) * | 2021-09-13 | 2023-02-09 | Continental Autonomous Mobility Germany GmbH | Verfahren zur Charakterisierung eines Objekts in einer Umgebung eines Kraftfahrzeugs |
-
2021
- 2021-12-13 DE DE102021214203.6A patent/DE102021214203A1/de active Pending
-
2022
- 2022-11-21 WO PCT/EP2022/082619 patent/WO2023110303A1/de not_active Ceased
- 2022-11-21 CN CN202280082525.7A patent/CN118401861A/zh active Pending
- 2022-11-21 US US18/715,865 patent/US20250172678A1/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015111264A1 (de) * | 2015-07-13 | 2017-01-19 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Erfassen eines Objekts in einem Umgebungsbereich eines Kraftfahrzeugs durch Aussenden von Ultraschallsignalen mit unterschiedlicher Richtcharakteristik, Fahrerassistenzsystem sowie Kraftfahrzeug |
| EP3602119B1 (de) * | 2017-03-29 | 2021-06-30 | Valeo Schalter und Sensoren GmbH | Verfahren zum erfassen eines objekts in einem umgebungsbereich eines kraftfahrzeugs mit klassifizierung des objekts, ultraschallsensorvorrichtung sowie kraftfahrzeug |
| US20210063148A1 (en) * | 2018-01-17 | 2021-03-04 | Robert Bosch Gmbh | Method and device for operating an acoustic sensor |
| DE102018103490A1 (de) * | 2018-02-16 | 2019-08-22 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Bestimmen einer Höhe eines Objekts in einem Umgebungsbereich eines Kraftfahrzeugs durch Bestimmung von Richtungsanteilen in einem Ultraschallsignal, Recheneinrichtung, Ultraschallsensorvorrichtung sowie Fahrerassistenzsystem |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118401861A (zh) | 2024-07-26 |
| US20250172678A1 (en) | 2025-05-29 |
| DE102021214203A1 (de) | 2023-06-15 |
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