EP3788397A1 - Verfahren und vorrichtung zum betreiben von ultraschallsensoren eines fahrzeugs - Google Patents
Verfahren und vorrichtung zum betreiben von ultraschallsensoren eines fahrzeugsInfo
- Publication number
- EP3788397A1 EP3788397A1 EP19723334.9A EP19723334A EP3788397A1 EP 3788397 A1 EP3788397 A1 EP 3788397A1 EP 19723334 A EP19723334 A EP 19723334A EP 3788397 A1 EP3788397 A1 EP 3788397A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- ultrasonic sensors
- noise
- sensors
- detected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/08—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring roughness or irregularity of surfaces
-
- 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
-
- 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
- G01S15/885—Meteorological systems
-
- 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
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
-
- 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
- G01S7/526—Receivers
- G01S7/527—Extracting wanted echo signals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60W2420/54—Audio sensitive means, e.g. ultrasound
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9315—Monitoring blind spots
-
- 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 method and a device for operating ultrasonic sensors of a vehicle.
- ultrasonic sensors Using ultrasonic sensors, obstacles around a vehicle can be detected at low vehicle speeds. At higher speeds, the detection is made difficult by wind noise and tire noise.
- Embodiments of the present invention may advantageously allow differentially oriented ultrasonic sensors of a vehicle to be used for different tasks. In each case, the
- Ultrasonic sensors are used for a task that is particularly well suited for it.
- a method for operating ultrasonic sensors of a vehicle is presented, which is characterized in that front ultrasonic sensors of the vehicle are used for detecting wind noise on the vehicle, rear ultrasonic sensors of the vehicle for detecting a
- Road conditions are used in the field of the vehicle, and lateral ultrasonic sensors of the vehicle for detecting objects in the area of the vehicle can be used.
- a vehicle can be oriented in different directions
- ultrasonic sensors When the ultrasonic sensors are actively operated, they emit ultrasonic pulses into an orientation-dependent detection area. Objects in the detection area will have the
- Ultrasound pulses partially reflected and received as echoes back to the ultrasonic sensor.
- the echoes have a much lower intensity than the ultrasonic pulses. From a transit time of the ultrasonic pulses and the echoes, a distance to the respective object can be determined.
- the ultrasonic sensors detect ambient noise when in a receiving frequency band of the ultrasonic sensors.
- the vehicle While driving, the vehicle will be powered by one from a local
- the wind causes noise on a body of the vehicle, as
- Wind noises can be designated and can be detected by the ultrasonic sensors.
- the wind noise can vary depending on Vehicle speed, wind speed and wind direction be louder than the echoes.
- Rolling noise may be louder than the echoes, depending on the vehicle speed.
- wet smearing When a pavement road condition is wet, the tires cause additional noise when unwinding, which may be referred to as wet smearing, for example, and may be detected by the ultrasonic sensors. Wet scratching may be louder than the echoes, depending on the road condition and vehicle speed.
- Noise sources Noise For example, other vehicles generate wind noise, rolling noise and wet or wet conditions on wet or wet roads. These extraneous noises can also be detected by the ultrasonic sensors.
- the different ambient noise and extraneous noise interfere with each other, so that at each ultrasonic sensor, a composite ambient noise is detected.
- the wind noise has a high intensity on the forward-facing ultrasonic sensors.
- the rolling noise and wet hissing have a high intensity on the rear-facing sensors.
- the extraneous noise of other vehicles on a high intensity.
- noise level indicates an intensity of ambient noise at one
- the noise level is already determined in the ultrasonic sensor and mapped in a received signal of the ultrasonic sensor. By using the noise level, further data processing can be done with reduced computational effort.
- echoes detected at the ultrasonic sensors can be evaluated.
- the objects can also be actively recorded. As a result, it is also possible to determine a distance to the objects from the transit time of the echo signals.
- the extraneous noise emitted by the objects can additionally be evaluated on the basis of the received noise level.
- Wind noise and / or objects imaged in sensor information of the rear-facing ultrasonic sensors may be compensated using the wind noise detected at the forward-facing ultrasonic sensors and / or the objects detected at the side-facing ultrasonic sensors.
- sensor information to the side may be compensated using the wind noise detected at the forward-facing ultrasonic sensors and / or the objects detected at the side-facing ultrasonic sensors.
- aligned wind noise and / or road conditions can be measured using the attached forward ultrasonic sensors
- aligned wind sensors and / or detected by the rear-facing ultrasonic sensors road condition can be compensated.
- Objects and / or the road condition imaged in sensor information of the forward-facing ultrasonic sensors may be compensated using the road condition detected on the rear-facing ultrasonic sensors and / or the objects detected on the side-facing ultrasonic sensors. Since different components of the ambient noise are respectively detected particularly well at the differently oriented ultrasonic sensors, the respectively less well-detected components of the ambient noise can be compensated.
- Sensor information of the ultrasonic sensors arranged on one side of the vehicle can be used to detect on the vehicle side overtaking or outdated other vehicles. Overhauling vehicles and overhauled vehicles travel at a different speed. As a result, an outdated vehicle is first detected at the front sensors. An overtaking vehicle is first detected at the rear sensors.
- the method may, for example, in software or hardware or in a hybrid of software and hardware, for example in a
- the approach presented here also provides a device which is designed to implement the steps of a variant of the method presented here
- the device may be an electrical device having at least one computing unit for processing signals or data, at least one memory unit for storing signals or data, and at least one interface and / or a communication interface for reading in or outputting data embedded in a communication protocol, be.
- the arithmetic unit can be, for example, a signal processor, a so-called system ASIC or a microcontroller for processing sensor signals and outputting
- the storage unit may be, for example, a flash memory, an EPROM or a magnetic storage unit.
- the interface can be used as a sensor interface for reading in the sensor signals from a sensor and / or as an actuator interface for
- the communication interface can be designed to read in or output the data wirelessly and / or by cable.
- Interfaces may also be software modules that are present, for example, on a microcontroller in addition to other software modules.
- Also of advantage is a computer program product or computer program with program code which can be stored on a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory and for carrying out, implementing and / or controlling the steps of the method according to one of the above described embodiments, in particular when the program product or program is executed on a computer or a device.
- a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory
- FIG. 1 shows a representation of a vehicle with differently oriented ultrasonic sensors and a device according to one exemplary embodiment.
- Fig. 1 shows a representation of a vehicle 100 with different
- the ultrasonic sensors 102 are arranged distributed over the vehicle 100.
- the ultrasonic sensors 102 are numbered clockwise from one to thirteen.
- the first ultrasonic sensor 102 is here arranged on a left front corner of the vehicle 100 and aligned with respect to a vehicle longitudinal axis 106 of the vehicle 100 to the left.
- the second ultrasonic sensor 102 is also arranged at the left front corner and oriented relative to the vehicle longitudinal axis 106 obliquely to the left front.
- the third ultrasonic sensor 102 is also disposed at the left front corner and oriented forward.
- the fourth ultrasonic sensor 102 is at a right front corner of the
- Vehicle 100 relative to the vehicle longitudinal axis 106 arranged symmetrically to the third ultrasonic sensor 102 and as the third ultrasonic sensor 102 aligned forward.
- the fifth ultrasonic sensor 102 is also arranged at the right front corner with respect to the vehicle longitudinal axis 106 symmetrical to the second ultrasonic sensor 102 and based on the
- Vehicle longitudinal axis 106 obliquely oriented to the right front.
- the sixth ultrasonic sensor 102 is also arranged at the right front corner with respect to the vehicle longitudinal axis 106 symmetrical to the first ultrasonic sensor 102 and aligned with respect to the vehicle longitudinal axis 106 to the right.
- the number seven is not taken.
- the eighth ultrasonic sensor 102 is at a right rear corner of the
- the ninth ultrasonic sensor 102 is also arranged at the right rear corner and aligned with respect to the vehicle longitudinal axis 106 obliquely to the right rear.
- the tenth ultrasonic sensor 102 is also disposed at the right rear corner and rearwardly.
- the eleventh ultrasonic sensor 102 is disposed at a left rear corner of the vehicle 100 with respect to the vehicle longitudinal axis 106 symmetrically with respect to the tenth ultrasonic sensor 102, and like the tenth ultrasonic sensor 102 is aligned rearward.
- the twelfth ultrasonic sensor 102 is also arranged at the left rear corner with respect to the vehicle longitudinal axis 106 symmetrical to the ninth ultrasonic sensor 102 and based on the
- Vehicle longitudinal axis 106 obliquely aligned to the rear left.
- the thirteenth ultrasonic sensor 102 is also arranged at the left rear corner with respect to the vehicle longitudinal axis 106 symmetrical to the eighth ultrasonic sensor 102 and with respect to the vehicle longitudinal axis 106 to the left
- Each ultrasonic sensor 102 may echo location of objects in its respective detection area 108 using emitted ultrasound and image a distance to the object in sensor information 110. Alternatively or additionally, each ultrasonic sensor 102
- An intensity of the ambient noise is in each case imaged in a noise level 112 of the sensor information 110.
- the sensor information 110 of all the ultrasonic sensors 102 are read in by the device 104.
- the echolocation works as intended and few ambient noises are detected. If the ambient noise grows louder than the echoes of the ultrasound, the echolocation will only work to a limited extent.
- wind on a body of the vehicle 100 generates a wind noise detected by the ultrasonic sensors 102.
- tires of the vehicle 100 generate a rolling noise, which is also detected by the ultrasonic sensors 102.
- the tires when a road surface is wet or wet, the tires generate a water sound or a wet hiss, which is also detected by the ultrasonic sensors 102.
- the wind noise, the rolling noise and the wet hiss are with
- sensor information 110 from substantially forward-facing ultrasonic sensors 102 is used to detect the wind noise.
- Sensor information 110 from substantially back-aligned ultrasonic sensors 102 are used to detect water noise and rolling noise.
- Ultrasonic sensors 102 are used to detect extraneous noise from other sources of noise. In other words, a method for sensor selection in the field of wetness detection on the roadway by means of ultrasound is presented.
- the road wetness or the indication mm-water column on a roadway can not be measured directly. From different operating conditions of the vehicle can be indirectly deduced on a wet road. This can be done for example by the wiper activity or ESP interventions. A continuous "measurement" of the road condition in the direction of moisture does not currently exist.
- the noise level reaches mainly directly through the air to the sensor, but can also be received indirectly by structure-borne sound from the sensor. These noises can be calculated as noise level or as "noise” (disturbance variable, noise value) in the ultrasonic control unit.
- the noise level can be output via CAN to other control units in the vehicle.
- Passenger properties such.
- B a wetness detection or detection of environmental properties, such.
- USS ultrasonic sensors
- the wind speed in the longitudinal direction is calculated with the noise levels of the front sensors, with the Noise levels of the side sensors are detected objects and with the noise levels of the rear sensors, wetness is measured on the road. Because wind and objects also reduce the noise levels of the rear sensors
- Vehicles, trucks, ...) are the laterally arranged four sensors (Nr.l, 6, 8,
- the respective difference signal of the noise values of the front sensors (no. 1, 6) and the rear sensors (no. 13, 8) is evaluated.
- Radar / Lidar / camera environment are validated.
- the sensors (1, 6, 8, 13) can be feature-specific as a whole
- Noise levels also actively send out ultrasonic signals and objects using the Recognize received echoes, as long as they are not suppressed by excessive noise levels.
- the rear four sensors (Nos. 9, 10, 11, 12) are relevant. With this sensor selection, the best measurement results can be achieved in relation to the current road surface wetness. For these sensor positions z. B. the wind influence the least.
- Detected detection area all rear sensors (Nos. 9, 10, 11, 12) can be used for moisture detection.
- the sensors can be operated actively or inactive, since the noise value can be determined and processed in each case.
- the moisture detection can be suspended.
- Object-specific correction value is lowered.
- the object influence on the sensor-specific noise level is compensated.
- the rear sensors (Nos. 9, 10, 11, 12) for detecting moisture are partially deactivated object-specifically.
- object groups are formed which have a similar influencing pattern (course and intensity) with respect to the noise value of a single sensor. According to each object group it is defined, which sensors for the moisture detection during the influence contribute to the
- the noise levels of all other sensors are not taken into account for the calculation of wetness during the time of this influence. For example, for an object type "automobile” only the two near-object sensors are deactivated (see also continuous object). In the case of a "truck” object type, however, all the rear sensors are not taken into account, since no moisture detection by ultrasonic sensors can currently be carried out here.
- the continuous noise value of the Sensorrohsignals is in a
- the result is output as a status vector:
- tracker noise current noise value of the sensor and can be calculated as follows:
- a sensor fusion value is calculated via all sensors via a fusion factor.
- the front four sensors (2, 3, 4, 5) are relevant.
- the effect is exploited that the influence of wind on the noise level of the individual front sensors occurs reinforced.
- This effect can be determined in an experimental experiment and mapped in a corresponding model value.
- the vehicle is subjected to wind in the longitudinal direction (eg in a wind tunnel). From this, wind speed-dependent sensor-individual noise values can be mapped and form the following relationship:
- V wind [km / h] V wind [km / h] - V vehicle [km / h]
- V vehicle 0km / h (in the wind tunnel)
- V wind [km / h] N sensor [mV] * k [km / h / mV] - V vehicle [km / h]
- V wind [km / h] V wind [km / h] - V vehicle [km / h]
- V wind [km / h] N sensor [mV] * k [km / h / mV] - V vehicle [km / h]
- the wind speed calculated with the front four sensors is used to compensate for the noise levels of the rear four sensors.
- the approach presented here can be used as a software feature in any car with an integrated, automatic on / off parking assistant.
- the method can be used in principle in all vehicles with ultrasonic sensors. Since only an already calculated signal is made available on the CAN bus and a warning is issued to the driver on the basis of this signal, a minimum conversion with software changes to the ultrasound control device and to the HMI is very cost-effective.
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Acoustics & Sound (AREA)
- Traffic Control Systems (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018206722.8A DE102018206722A1 (de) | 2018-05-02 | 2018-05-02 | Verfahren und Vorrichtung zum Betreiben von Ultraschallsensoren eines Fahrzeugs |
| PCT/EP2019/060633 WO2019211168A1 (de) | 2018-05-02 | 2019-04-25 | Verfahren und vorrichtung zum betreiben von ultraschallsensoren eines fahrzeugs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3788397A1 true EP3788397A1 (de) | 2021-03-10 |
Family
ID=66484011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19723334.9A Withdrawn EP3788397A1 (de) | 2018-05-02 | 2019-04-25 | Verfahren und vorrichtung zum betreiben von ultraschallsensoren eines fahrzeugs |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20210055415A1 (de) |
| EP (1) | EP3788397A1 (de) |
| CN (1) | CN112074756B (de) |
| DE (1) | DE102018206722A1 (de) |
| WO (1) | WO2019211168A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11487005B2 (en) * | 2018-05-02 | 2022-11-01 | Robert Bosch Gmbh | Method and device for identifying a road condition |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7159083B2 (ja) * | 2019-03-06 | 2022-10-24 | 株式会社クボタ | 作業車両 |
| DE102019210480A1 (de) * | 2019-07-16 | 2021-01-21 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Ermitteln einer Umweltbedingung im Umfeld eines Fortbewegungsmittels auf Basis eines Ultraschallsensors des Fortbewegungsmittels |
| DE102020201940A1 (de) | 2020-02-17 | 2021-08-19 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren und System zum Bestimmen einer Aquaplaninggefahr für ein Fortbewegungsmittel |
| DE102021202186A1 (de) | 2021-03-08 | 2022-09-08 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Ermittlung eines Straßenzustands bei einem Kraftfahrzeug |
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| KR20160136680A (ko) * | 2015-05-20 | 2016-11-30 | 주식회사 타오스 | 차량용 초음파 센서의 신호검출 및 분석 장치 |
| CN105336340B (zh) * | 2015-09-30 | 2019-01-01 | 中国电子科技集团公司第三研究所 | 一种用于低空目标声探测系统的风噪抑制方法和装置 |
| US10067907B2 (en) * | 2016-05-05 | 2018-09-04 | GM Global Technology Operations LLC | Vehicle including noise management system having automotive audio bus (A2B) interface |
| CN108432242A (zh) * | 2016-05-10 | 2018-08-21 | Jvc 建伍株式会社 | 车辆用显示装置、车辆用显示方法以及程序 |
| US10055675B2 (en) * | 2016-06-15 | 2018-08-21 | Ford Global Technologies, Llc | Training algorithm for collision avoidance using auditory data |
| DE102016213369A1 (de) * | 2016-07-21 | 2018-01-25 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Überwachung eines Totwinkelbereichs eines Fahrzeugs |
| DE102016118307A1 (de) * | 2016-09-28 | 2018-03-29 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Erkennen eines Objekts in einer Umgebung eines Kraftfahrzeugs unter Berücksichtigung einer Streuung von Abstandswerten eines Ultraschallsensors, Steuergerät, Fahrerassistenzsystem sowie Kraftfahrzeug |
| DE102017219898A1 (de) * | 2017-11-09 | 2019-05-09 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Erkennen eines Fahrbahnzustands |
-
2018
- 2018-05-02 DE DE102018206722.8A patent/DE102018206722A1/de active Pending
-
2019
- 2019-04-25 WO PCT/EP2019/060633 patent/WO2019211168A1/de not_active Ceased
- 2019-04-25 CN CN201980029790.7A patent/CN112074756B/zh active Active
- 2019-04-25 US US17/040,381 patent/US20210055415A1/en not_active Abandoned
- 2019-04-25 EP EP19723334.9A patent/EP3788397A1/de not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11487005B2 (en) * | 2018-05-02 | 2022-11-01 | Robert Bosch Gmbh | Method and device for identifying a road condition |
Also Published As
| Publication number | Publication date |
|---|---|
| US20210055415A1 (en) | 2021-02-25 |
| CN112074756A (zh) | 2020-12-11 |
| CN112074756B (zh) | 2025-04-29 |
| WO2019211168A1 (de) | 2019-11-07 |
| DE102018206722A1 (de) | 2019-11-07 |
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