EP4232847A1 - Verfahren zum erfassen eines objekts in einer umgebung eines kraftfahrzeugs und assistenzsystem - Google Patents
Verfahren zum erfassen eines objekts in einer umgebung eines kraftfahrzeugs und assistenzsystemInfo
- Publication number
- EP4232847A1 EP4232847A1 EP21799179.3A EP21799179A EP4232847A1 EP 4232847 A1 EP4232847 A1 EP 4232847A1 EP 21799179 A EP21799179 A EP 21799179A EP 4232847 A1 EP4232847 A1 EP 4232847A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- echoes
- motor vehicle
- value
- difference
- 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.)
- Pending
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
- G01S15/02—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
-
- 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
- G01S15/50—Systems of measurement, based on relative movement of the target
-
- 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
- G01S7/526—Receivers
- G01S7/527—Extracting wanted echo signals
-
- 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
- G01S15/88—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
- G01S2015/933—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles for parking operations for measuring the dimensions of the parking space when driving past
- G01S2015/935—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles for parking operations for measuring the dimensions of the parking space when driving past for measuring the contour, e.g. a trajectory of measurement points, representing the boundary of the parking space
-
- 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
- G01S2015/938—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details in the bumper area
Definitions
- the invention relates to a method for detecting an object in the surroundings of a motor vehicle, in particular for locating a parking space, using an assistance system of the motor vehicle, in which the motor vehicle is moved relative to the object and ultrasonic signals are emitted with an ultrasonic sensor of the assistance system.
- echoes of the ultrasonic signals reflected by the object are received and respective distance values are determined by means of a control device on the basis of the received echoes, the object being detected based on the distance values of the echoes.
- the invention also relates to an assistance system with an ultrasonic sensor and a control device, which is designed to carry out such a method.
- the motor vehicle is usually moved past the objects, with a measurement cycle is carried out.
- an ultrasonic signal is emitted with an ultrasonic sensor.
- a membrane of the ultrasonic sensor is usually excited to mechanical vibrations with a corresponding transducer element.
- This ultrasonic signal is reflected by the objects and can be received again as an echo by a receiver device of the ultrasonic sensor.
- a distance between the motor vehicle and the objects can be determined on the basis of the transit time difference between the time of transmission and the time of reception, taking into account the propagation speed of the ultrasonic signal.
- a method and an assistance system of the type mentioned are disclosed, for example, in DE 10 2005 044 050 A1.
- a motor vehicle drives past objects located at the side of the motor vehicle and spaced apart from one another, ultrasonic signals are emitted by means of an ultrasonic sensor of the motor vehicle and the echoes of the ultrasonic signals reflected by the objects are received. Based on the received echoes, respective distance values are determined and, based on this, the objects and ultimately a parking space are determined.
- the present invention is based on the object of specifying a method for detecting an object in the vicinity of a motor vehicle and a corresponding assistance system which enables the object to be detected as reliably as possible and, based on this, in particular a sufficiently precise localization of a parking space.
- the motor vehicle is relative to moves with the object and ultrasonic signals are emitted with an ultrasonic sensor of the assistance system.
- ultrasonic signals are emitted with an ultrasonic sensor of the assistance system.
- echoes of the ultrasonic signals reflected by the object are received, with the respective distance values being determined by means of a control device on the basis of the received echoes.
- the object is detected based on the distance values of the echoes.
- a respective difference between the distance values of two consecutive echoes is formed for a plurality of temporally consecutive echoes, with the object being detected on the basis of the differences formed.
- the invention is initially based on the consideration that a parking space is regularly delimited by certain objects which usually have a rectangular shape, namely parked vehicles, curbs, walls and walls.
- the invention is also based on the consideration that the distance values of the ultrasonic signals or echoes reflected by the outer surface of such an object adjoining the motor vehicle essentially correlate strongly with one another. In this case, therefore, a distance value determined using an echo does not differ or differs only slightly from a distance value determined using an echo that is closest in time.
- the echoes are entered on the basis of their respective distance value in a map that describes the relative position of the motor vehicle to such an object and is plotted over two mutually orthogonal spatial directions, the corresponding echoes are essentially arranged along a line.
- the invention therefore provides that a respective difference between the distance values of two successive echoes is formed for a plurality of temporally successive echoes, and that the object is detected on the basis of the differences formed.
- the configuration according to the invention has the advantage that it provides a method by means of which an object can be reliably detected and, based on this, in particular a sufficiently precise localization of a parking space is possible.
- detecting the object is understood to mean recognizing an object in the vicinity of the motor vehicle that is relevant, in particular for locating a parking space.
- the ultrasonic sensor is preferably designed as a so-called one-dimensional (1D) ultrasonic sensor, ie as an ultrasonic sensor for determining distance.
- the ultrasonic sensor can be arranged, for example, in or behind a bumper of the motor vehicle.
- the ultrasonic sensor can be arranged in or behind a body component, for example a door of the motor vehicle.
- the absolute value of the respective difference is compared with a predefined limit value, with that difference being set to a difference value of 0, the absolute value of which is smaller than the limit value.
- the limit value is advantageously predetermined in such a way that an object is detected whose outer surface, which reflects the ultrasonic signals, is in at an angle of up to 10°, preferably up to 5°, to the direction of movement of the motor vehicle.
- the limit value is alternatively or additionally predetermined as a function of technical properties or parameters of the ultrasonic sensor and/or a current speed of the motor vehicle and/or a temperature in the area surrounding the motor vehicle and/or humidity in the area surrounding the motor vehicle and/or an installation height of the ultrasonic sensor on the motor vehicle. Since the temperature in and around the motor vehicle has a noticeable effect on the airborne sound insulation, the temperature can be recorded using an appropriate sensor and the threshold value can be adjusted accordingly. The same applies to the humidity. This leads to an even more reliable detection of the object.
- the limit is predetermined by applying a Monte Carlo simulation. For example, measurements are simulated with an object designed as a parked vehicle, which is aligned at an angle of 5° in relation to the direction of movement of the motor vehicle or whose outer surface, which reflects the ultrasonic signals, is at an angle of 5° in relation to the direction of movement of the motor vehicle is aligned.
- noise is added to these measurements on the basis of the properties or parameters to be found, for example, in a sensor data sheet of the ultrasonic sensor, and the differences and the distribution (histogram) of the differences are calculated.
- the limit value is then determined based on this.
- the limit value can be determined based on real measurements and the empirical distribution (histogram) of the differences or by applying an analytical method.
- the sign of the respective difference is determined, with the object being detected on the basis of the sign.
- the sign includes in particular the character identifying a negative number, i.e. a negative differential value as negative, i.e. less than 0, in particular the minus sign, the character identifying a positive number, i.e. a positive differential value as positive, i.e. greater than 0, characterizing in particular Plus sign, as well as the character identifying the number 0, in particular no leading sign.
- a detection of the object based on the respective signs of the differences and a corresponding algorithm are extremely robust and such an algorithm can be carried out with relatively little computing power.
- a sign value is determined by applying a signum function to the respective difference, the sign value +1 being determined for a positive difference value, the sign value ⁇ 1 for a negative difference value and the sign value 0 for a difference value 0.
- the sign value of the difference between the distance values of the two consecutive echoes is assigned to the later echo of the two echoes, the object being detected when the number of consecutive echoes with assigned sign value 0 exceeds a predetermined threshold value.
- the reliability of the detection is further increased by the comparison with a predetermined threshold value for the number of temporally successive echoes with an assigned sign value of 0. If this condition is met, the multiple consecutive echoes are classified as echoes arranged along a sufficiently long line and the object is detected based on this.
- the object is detected if, in addition, the temporally last echo of the plurality of temporally successive echoes has an assigned sign value +1 or an assigned sign value -1.
- Such an echo is classified as an echo not (longer) along or on the line and indicates in particular an ultrasonic signal not (longer) reflected by the object or by the outer surface of the object adjoining the motor vehicle and thus to the end of the object or its outer surface.
- a median filter or a Gaussian filter is first applied to the respective difference.
- the difference then relates to the correspondingly filtered difference.
- Such filtering in particular compensates for variances in the errors in the measured or determined distance values.
- a parking space delimited by the object is recognized on the basis of the detected object.
- the parking space is expediently identified based on the first and/or last echo of the plurality of temporally successive echoes with an assigned sign value of 0, which, seen in the direction of travel of the motor vehicle, represent in particular the start area or end area of the outer surface of the object adjoining the motor vehicle.
- the object is detected as a vehicle, a curb, a wall or a brick wall.
- Such objects regularly delimit a parking space and usually have an essentially rectangular shape, so that these objects and consequently a parking space can be detected based on the differences formed between the distance values of a plurality of temporally consecutive echoes.
- the method is used in an assisted and/or semi-automatic and/or automatic parking method.
- the present invention includes an assistance system with an ultrasonic sensor and a control device.
- the control device is designed to carry out the method according to the invention.
- the ultrasonic sensor is preferably designed as a so-called one-dimensional (1D) ultrasonic sensor, ie as an ultrasonic sensor for determining distance.
- the ultrasonic sensor can be arranged, for example, in or behind a bumper of the motor vehicle.
- the ultrasonic sensor can be arranged in or behind a body component, for example a door of the motor vehicle.
- the assistance system advantageously includes a number of ultrasonic sensors, in particular a number of one-dimensional ultrasonic sensors.
- FIG. 1 shows a schematic representation of a motor vehicle for carrying out the method according to the invention while driving past objects in an area surrounding the motor vehicle
- FIG. 2 shows a schematic diagram representing the echoes of the objects in the area surrounding the motor vehicle according to FIG. 1 along a route covered by the motor vehicle
- FIG. 3 shows a flow chart of a method for detecting an object in the area surrounding the motor vehicle according to FIG. 1 ,
- FIG. 4 shows a schematic representation of the situation according to FIG. 1 after the method according to the invention has been carried out
- Fig. 5 is a schematic diagram showing the echoes like. 2 illustrates associated filtered differences and sign values.
- the motor vehicle 1 shows a schematic representation of a motor vehicle 1 for carrying out the method 100 according to the invention in a drive past objects 2, 3, 4, 5 in an area surrounding the motor vehicle 1, the arrow indicating the direction of travel 6 of the motor vehicle 1.
- the motor vehicle 1 has an assistance system 7 with an ultrasonic sensor 8 with a specific detection area 9 and a control device (not shown).
- a parked first vehicle 2, a spaced apart parked second vehicle 3 and a spaced apart parked third vehicle 4 are located in the direction of travel 6 to the side of the motor vehicle 1 as objects in this order.
- a curb extends in the direction of travel 6 along a certain section 5.
- the motor vehicle 1 is moving in the direction of travel 6 relative to these objects 2, 3, 4, 5, with the ultrasonic sensor 8 of the assistance system 7 transmitting ultrasonic signals and echoes 10, 11, 12, 13 of the objects 2, 3, 4 , 5 reflected ultrasonic signals are received. Based on the recorded Echoes 10, 11, 12, 13 are then determined by means of the control device, the respective distance values.
- FIG. 2 shows a schematic diagram that shows the received echoes 10, 11, 12, 13 of the objects 2, 3, 4, 5 in the area surrounding the motor vehicle 1 according to FIG.
- the diagram depicts the distance covered by the motor vehicle 1 on the abscissa and the determined distance values of the received echoes 10, 11, 12, 13 on the ordinate.
- Both the echoes 10 representing the first vehicle 2, the echoes 11 representing the second vehicle 3, the echoes 12 representing the third vehicle 4 and the echoes 13 representing the curb 5 can be seen.
- Fig. 3 shows a flow chart of a method 100 for detecting an object 2, 3, 4, 5 in the vicinity of the motor vehicle 1 according to FIG is moved with the third vehicle 4, and ultrasonic signals are emitted with the ultrasonic sensor 8 and echoes 12 of the ultrasonic signals reflected by the third vehicle 4 are received and respective distance values are determined.
- a type of initialization takes place. If necessary, all echoes 10, 11, 12, 13 still present or stored from a previous process are deleted and a limit value for an absolute value of a difference and a threshold value for a number of temporally consecutive echoes with an assigned sign value 0 are defined.
- a step 102 another echo 12 that is immediately next in time is now selected for processing.
- a difference is formed between the distance values of the currently added echo 12 and the echo 12 immediately preceding in time.
- a median filter or alternatively a Gaussian filter is applied to the difference formed. This compensates for variances in the errors in the measured or determined distance values.
- a step 105 the absolute value of the filtered difference is then compared with the predetermined limit value.
- the filtered difference is set to a difference value of 0 in a step 106 .
- a sign value is determined by applying a signum function to the filtered difference.
- the sign value +1 is defined for a positive difference value, the sign value -1 for a negative difference value and the sign value 0 for a difference value 0.
- the corresponding sign value is assigned to the filtered difference and the echo 12.
- the current echo 12 is processed in a step 109 in conjunction with the previously processed, temporally consecutive echoes 12 from the third vehicle 4, more precisely from the lateral outer surface of the third vehicle 4 facing the motor vehicle 1 as echoes 12 arranged along or in a line and therefore classified as an echo 12 originating from the lateral outer surface of the third vehicle 4 facing the motor vehicle 1 .
- the echoes 12 resulting from the lateral outer surface of the third vehicle 4 adjoining motor vehicle 1 are marked here by a first rectangle 14 for illustration purposes, i.e. the echoes 12 located within this rectangle 14 result from the lateral outer surface of the third vehicle adjoining motor vehicle 1 third vehicle 4.
- These echoes 12 are essentially arranged along an approximately horizontal line.
- a check is then made as to whether the number of echoes 12 which are now present in chronological succession and have an assigned sign value of 0 exceeds the threshold value. If the threshold value is not exceeded, the method 100 goes back to step 102 and the method steps described above are thus run through for a further, chronologically next echo 12 .
- the current echo 12 together with the previously processed, temporally successive echoes 12 are classified as echoes 12 arranged along a basically sufficiently long line. That is, although there is a sufficiently large (minimum) number of temporally consecutive echoes 12 with associated Sign value 0 before, which basically indicate an object to be detected. However, the object or its corresponding outer surface could not have been completely measured at this point in time or, to put it another way, using the currently already processed, temporally successive echoes 12 .
- the method 100 therefore goes back to step 102, as a result of which the method steps described above are run through for a further echo 12 which is next in time.
- step 108 If, on the other hand, it is determined in step 108 that the filtered difference of the current echo 12 does not have the sign value 0, but rather the sign value ⁇ 1 or +1, then the method 100 proceeds directly from step 108 to step 112 .
- Such an echo 12 is classified as an echo 12 not (or no longer) arranged along or on the line and indicates an ultrasonic signal not (or no longer) reflected by the vehicle 4 or by the lateral outer surface of the vehicle 4 facing the motor vehicle 1 and thus towards the end of the vehicle 4 or its corresponding outer surface. This procedure enables the implementation of a particularly robust and reliable algorithm for detecting the vehicle 4.
- step 112 a check is made as to whether the number of previously processed, chronologically consecutive echoes 12 with an associated sign value 0 exceeds the threshold value.
- a step 113 the previously processed, chronologically consecutive echoes 12 with an assigned sign value 0 are classified as echoes 12 arranged along a sufficiently long line and based on this the third vehicle 4 is detected and this as a third Line 15 issued.
- a next step 114 all existing or stored echoes 12 are deleted and the method goes back to step 102.
- the further method steps are then run through again in accordance with the above statements.
- the method 100 explained here as an example for detecting the third vehicle 4 is used accordingly for detecting the first vehicle 2 , the second vehicle 3 and the curb 5 .
- the specified method steps are therefore run through for all detected echoes 10, 11, 12, 13.
- the first vehicle 2, the second vehicle 3, the third vehicle 4 and the curb 5 can thus be reliably detected as a respective line 15, 16, 17, 18 and output accordingly, and parking spaces 19, 20 can be located based thereon .
- FIG. 4 the situation according to FIG. 1 after execution of the method 100 according to the invention is shown in a schematic representation.
- the horizontal lines 15, 16, 17, 18 representing the detected objects 2, 3, 4, 5 can be seen here.
- the first line 16 represents the first vehicle 2 or the outer surface of the first vehicle 2 adjoining the motor vehicle 1 as it drives past
- the second line 17 represents the second vehicle 3 or the outer surface of the second vehicle 1 as it drives past Vehicle 3
- the third line 15 represents the third vehicle 4 or the outer surface of the third vehicle 4 adjoining the motor vehicle 1 when it drives past
- the fourth line 18 represents the curb 5.
- a first parking space 19 was identified and its dimensions were determined.
- a second parking space 20 was also identified and its dimensions determined.
- the parking spaces 19, 20 were localized as parking spaces 19, 20 suitable for the motor vehicle 1 on the basis of a subsequent comparison of the determined dimensions of the parking spaces 19, 20 with the dimensions of the motor vehicle 1 and the space required for maneuvering.
- Fig. 5 is a schematic diagram showing the echoes 10, 11, 12, 13 like. 2 shows associated filtered differences and sign values along the route covered by motor vehicle 1.
- the respective filtered differences are shown with a square box and the respective sign values with a cross ("x").
- the filtered differences and the corresponding sign values of the echoes 12 resulting from the lateral outer surface of the third vehicle 4 adjoining the motor vehicle 1 are again marked here by a second rectangle 14a for the purpose of illustration.
- the corresponding sign values are arranged along an approximately horizontal line. A detection of the vehicle 4 or the corresponding echoes 12 using the respective sign values of the differences is very robust and such an algorithm can be executed with relatively little computing power.
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
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020213321.2A DE102020213321A1 (de) | 2020-10-22 | 2020-10-22 | Verfahren zum Erfassen eines Objekts in einer Umgebung eines Kraftfahrzeugs und Assistenzsystem |
| PCT/DE2021/200147 WO2022083832A1 (de) | 2020-10-22 | 2021-10-06 | Verfahren zum erfassen eines objekts in einer umgebung eines kraftfahrzeugs und assistenzsystem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4232847A1 true EP4232847A1 (de) | 2023-08-30 |
Family
ID=78414132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21799179.3A Pending EP4232847A1 (de) | 2020-10-22 | 2021-10-06 | Verfahren zum erfassen eines objekts in einer umgebung eines kraftfahrzeugs und assistenzsystem |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4232847A1 (de) |
| DE (1) | DE102020213321A1 (de) |
| WO (1) | WO2022083832A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005044050A1 (de) | 2005-09-15 | 2007-03-22 | Hella Kgaa Hueck & Co. | Verfahren zur Parklückenbestimmung für Kraftfahrzeuge |
| DE102005059902A1 (de) * | 2005-12-15 | 2007-06-28 | Robert Bosch Gmbh | Verfahren zur Sensorzustandserfassung sowie Abstandsmessvorrichtung und Einparkassistenzsystem |
| DE102005061396A1 (de) * | 2005-12-22 | 2007-07-05 | Robert Bosch Gmbh | Ultraschallsensor |
| JP5906432B2 (ja) * | 2011-11-24 | 2016-04-20 | パナソニックIpマネジメント株式会社 | 超音波センサシステム |
| JP5937980B2 (ja) | 2013-02-15 | 2016-06-22 | 株式会社日本自動車部品総合研究所 | 障害物検知装置 |
| DE102017214293B4 (de) | 2017-08-16 | 2019-10-10 | Volkswagen Aktiengesellschaft | Verfahren, Vorrichtung und computerlesbares Speichermedium mit Instruktionen zum Verarbeiten von Daten in einem Kraftfahrzeug für einen Versand an ein Backend |
| CN111257893B (zh) * | 2020-01-20 | 2024-05-10 | 珠海上富电技股份有限公司 | 一种停车位检测方法及自动泊车方法 |
-
2020
- 2020-10-22 DE DE102020213321.2A patent/DE102020213321A1/de active Pending
-
2021
- 2021-10-06 WO PCT/DE2021/200147 patent/WO2022083832A1/de not_active Ceased
- 2021-10-06 EP EP21799179.3A patent/EP4232847A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020213321A1 (de) | 2022-04-28 |
| WO2022083832A1 (de) | 2022-04-28 |
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