EP3475106A1 - Autonomes ankoppeln eines anhängers - Google Patents
Autonomes ankoppeln eines anhängersInfo
- Publication number
- EP3475106A1 EP3475106A1 EP17724340.9A EP17724340A EP3475106A1 EP 3475106 A1 EP3475106 A1 EP 3475106A1 EP 17724340 A EP17724340 A EP 17724340A EP 3475106 A1 EP3475106 A1 EP 3475106A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pattern
- camera
- trailer
- vehicle
- image
- 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- Withdrawn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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/58—Auxiliary devices
- B60D1/62—Auxiliary devices involving supply lines, electric circuits or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/36—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for facilitating connection, e.g. hitch catchers
Definitions
- the invention relates to an arrangement according to the preamble of claim 1.
- Document GB 2 513 393 describes an arrangement with a camera and a target.
- the camera is attached to a vehicle, the target is attached to a trailer.
- a trajectory can be calculated. This trajectory describes a path in the direction of the trailer that the vehicle has to cover for coupling the trailer.
- a similar system is known from document WO 2013/130479. Here a stereo system with two cameras is revealed. Triangulations can be used to determine the distance of a target. This distance is used along with the removal of another target to determine a trailer's position. Based on this, a trajectory for coupling the trailer is determined.
- the invention has for its object to make available an arrangement of the type mentioned, bypassing the known from the prior art solutions inherent disadvantages.
- the automated or autonomous approach of a vehicle to a trailer to couple the trailer to the vehicle to be designed faster and more accurate.
- This object is achieved by an arrangement according to claim 1. Preferred developments are contained in the subclaims.
- the arrangement comprises a first camera, a first pattern, at least one evaluation unit and at least one means for transmitting at least one image taken by the camera from the camera to the evaluation unit.
- the transmission of the image takes place, for example, in that data in which the image is coded is transmitted from the camera to the evaluation unit.
- a pattern is generally an arrangement of objects having different optical properties.
- the objects may be surfaces.
- Their brightness is a characteristic. Areas of different brightness give a pattern.
- the brightness of a surface indicates an average luminance of the surface. Different brightnesses of different surfaces come about through different bright colors and / or gray values. This results in differences in brightness due to a different reflectivity of the individual surfaces to light, i. electromagnetic radiation from the visible spectrum. The higher the proportion of incident light that reflects an area, the greater its brightness.
- the first pattern and a second pattern are each formed by at least one area of a first brightness and at least one area of a second brightness.
- the areas of the first brightness have a higher reflectivity with respect to light than the areas of the second brightness.
- the first pattern and / or the second pattern are preferably printed or painted.
- the assembly comprises a first shield and a second shield.
- the first pattern such as by printing or painting
- the second pattern is applied to the second shield, such as by printing or painting.
- the first camera is attached to a vehicle and the first pattern is attached to a trailer, or the first camera is attached to the trailer and the first pattern is attached to a vehicle.
- the vehicle is preferably a motor vehicle, such as a commercial vehicle, such as a farm tractor.
- the first camera or pattern is attached to the vehicle such that the first camera or pattern is immovably fixed to the vehicle.
- the attachment of the first pattern or the first camera to the trailer takes place in the form of an immovable fixation of the first pattern or the first camera on the trailer.
- An immovable fixation refers to a fixation which has neither translatory nor rotary degrees of freedom.
- the evaluation unit is formed; identify the first pattern in the image transmitted by the camera to the evaluation unit. This means that the camera classifies components of the image as those that contain the pattern or a part of it and those that are not part of the pattern.
- the entirety of the image components classified as belonging to the pattern is an illustration of the pattern.
- the term of the pattern present in the image is used below synonymously for an image of a pattern taken by the first camera. This image is part of the image transferred from the camera to the evaluation unit.
- At least a part of the first pattern is at least partially aligned horizontally according to the invention.
- An at least partially horizontal orientation denotes a non-vertical orientation.
- the at least partially honzontal aligned portion of the first pattern may therefore be oriented horizontally or tilted relative to the horizontal by an angle which differs from 90 °.
- Horizontal denotes a horizontal plane.
- the horizontal designates against this background a level that is fixed with respect to the arrangement, and which runs horizontally when the assembly is in a reference position.
- the reference position is freely selectable.
- the reference position is taken when the vehicle and / or the trailer ride on a plane, horizontally oriented surface or come to a halt.
- the portion of the first pattern is horizontally aligned without restriction.
- the first camera is vertical, i. arranged offset orthogonal to the horizontal. This means that a reference point of the first camera and a reference point of the part pattern have a different distance from the horizontal.
- the reference point of the camera is preferably a point of a front lens of the camera, such as the point of the outer surface of the front lens, which lies on an optical axis of the camera.
- An optical axis denotes an axis of symmetry of a reflective and / or refractive optical element or optical system.
- the optical axis of a camera is accordingly the optical axis of a lens of the camera.
- the points of the first camera and the points of the part of the first pattern are arranged in pairs vertically offset from one another.
- Each point of the camera and each point of the pattern thus have a different distance from the horizontal.
- either the distance of the points of the camera is continuously larger or continuously smaller than the distance of the points of the part of the pattern.
- the first camera and the part of the first pattern are on different sides of this plane. The invention makes it possible to determine the position of the trailer relative to the vehicle with increased accuracy.
- a trajectory is determined along which the vehicle must move in order to dock the trailer. This trajectory must be planned the more precisely the further the vehicle approaches the trailer.
- the first camera is at least partially vertically aligned.
- the orientation of the camera is determined by its optical axis. This means that the optical axis of the first camera is at least partially aligned vertically according to further development.
- An at least partially vertical orientation refers to an orientation that is not horizontal.
- the optical axis of the first camera is thus pivoted by a non-zero angle relative to the horizontal.
- this angle can be 90 °.
- This corresponds to an unrestricted vertical orientation of the first camera.
- Preference is given to a pivot angle of the first camera, which lies in a range of 10 to 80 °, 20 to 70 °, 30 to 60 ° or 40 to 50 °.
- the first camera is aligned so that it is able to detect the first pattern when the trailer is attached to the vehicle.
- the first pattern is detected by the first camera if and only if included in the image captured by the first camera is, ie, when an image of the first pattern is part of the image taken by the first camera.
- the evaluation unit is preferably further developed, based on the position of the first pattern or the image of the first pattern in the image to determine a distance of the first pattern to a reference point.
- the reference point is fixed relative to the first camera. This determination of the distance of the first pattern, as described above, is particularly accurate, as described above, due to the horizontally offset arrangement of the first camera and the first pattern in the post-area.
- the position of the first pattern in the image can be defined as a position of a reference point of the first pattern or its image in the image taken by the camera. Since it is a two-dimensional image, the position in the image is equivalent to a two-dimensional location. In particular, the position can be defined by exactly two image coordinates.
- the first camera is optimized for the detection of the first pattern in the near range.
- a further preferred embodiment comprises the second camera already mentioned above and a second pattern.
- the second camera is tilted in the direction of the horizontal relative to the first camera. This is especially true for the optical axes of the two cameras, i. the optical axis of the second camera is tilted in the direction of the horizontal with respect to the optical axis of the first camera.
- An angle which the optical axis of the second camera encloses with the horizontal is smaller in magnitude than an angle which the optical axis of the first camera encloses with the horizontal.
- the second camera can be aligned horizontally.
- the optical axis of the second camera is parallel to the horizontal.
- the opposite direction of the first camera in the direction of the horizontal tilted orientation of the second camera requires that at least a part of the second pattern opposite is tipped over the above-mentioned part of the first pattern in the direction of the vertical.
- This is equivalent to a tilt of the part of the second pattern with respect to the part of the first pattern in the direction of a vertical, ie orthogonal to the horizontal line.
- An angle enclosed by the part of the second pattern and this straight line is smaller in magnitude than an angle which the part of the first pattern and this straight line include.
- the part of the second pattern is vertical without restriction, i. aligned orthogonal to the horizontal.
- the vehicle and the trailer are further developed, each with a coupling half.
- the coupling halves are components of the coupling.
- the evaluation unit is able to determine a position of the first coupling half and the second coupling half relative to each other. This position in turn can be used to determine a trajectory for coupling the trailer to the vehicle.
- Fig. 1 a tractor
- Fig. 2 is a side view of a trailer
- Fig. 3 is a plan view of the trailer.
- An agricultural tractor 101 according to FIG. 1 is provided with a first camera 103 and a second camera 105.
- the first camera 103 and the second camera 105 are located in the rear area of the tractor 101 and each cover an area behind the tractor 101.
- An optical axis 107 of the first camera 103 is tilted down out of the vertical.
- An optical axis 109 of the second camera 105 is horizontal.
- the first camera 103 is arranged higher than the second camera 105.
- the second camera 105 is arranged at the level of a drawbar 201 of a trailer 203 shown in FIG. 2.
- the drawbar 201 is provided with a first plate 205 and a second plate 207.
- the first shield 205 has a first pattern, the second shield 207 a second pattern.
- the first pattern and the second pattern are designed so that they stand out from the environment so that they can be automatically recognized in the images taken by the first camera 103 and the second camera 105.
- the first shield 205 is aligned horizontally.
- the first pattern points upwards.
- the second sign is vertically aligned. Viewed from the trailer 203, the second pattern faces forward or in the direction of travel.
- a third shield 301 provided with a third pattern is shown in FIG. 3.
- the third shield 301 is attached to the drawbar 201 and, like the second shield 207, is vertically aligned. Together with the second plate 207 is the third
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016211396.8A DE102016211396B4 (de) | 2016-06-24 | 2016-06-24 | Autonomes Ankoppeln eines Anhängers |
| PCT/EP2017/061708 WO2017220257A1 (de) | 2016-06-24 | 2017-05-16 | Autonomes ankoppeln eines anhängers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3475106A1 true EP3475106A1 (de) | 2019-05-01 |
Family
ID=58737560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17724340.9A Withdrawn EP3475106A1 (de) | 2016-06-24 | 2017-05-16 | Autonomes ankoppeln eines anhängers |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3475106A1 (de) |
| DE (1) | DE102016211396B4 (de) |
| WO (1) | WO2017220257A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12509080B2 (en) | 2018-06-01 | 2025-12-30 | Paccar Inc | Selection of environment sensors for autonomous vehicle maneuvering |
| DE102019205447A1 (de) * | 2019-04-16 | 2020-10-22 | Zf Friedrichshafen Ag | Vorrichtung und Verfahren zum Annähern eines Zugfahrzeugs an einen Anhänger sowie Zugfahrzeug und Anhäng |
| EP4435378A4 (de) * | 2021-11-17 | 2026-01-21 | Ihi Corp | Verbindungswinkelerfassungsvorrichtung für ein kombinationsfahrzeug, kombinationsfahrzeug und verfahren zur erfassung des verbindungswinkels eines kombinationsfahrzeugs |
| DE102023100586A1 (de) | 2023-01-12 | 2024-07-18 | Connaught Electronics Ltd. | Verfahren zum Befestigen eines Fahrzeugs an einem Anhänger |
| DE102023122826A1 (de) | 2023-08-25 | 2025-02-27 | Reich Gesellschaft mbH Regel- und Sicherheitstechnik | Verfahren zum Betreiben eines Hilfsantriebs eines Anhängers |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010035299A1 (de) * | 2010-08-20 | 2012-02-23 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren und Vorrichtung zum Bewegen eines Anhängers |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004008928A1 (de) * | 2004-02-24 | 2005-09-08 | Bayerische Motoren Werke Ag | Verfahren zum Ankuppeln eines Anhängers unter Einsatz einer Fahrzeugniveauregulierung |
| US7568716B2 (en) * | 2005-05-13 | 2009-08-04 | Dietz Dan L | Method and apparatus for alignment of trailer hitch |
| JP2007108159A (ja) | 2005-09-15 | 2007-04-26 | Auto Network Gijutsu Kenkyusho:Kk | 運転支援装置 |
| US9085261B2 (en) * | 2011-01-26 | 2015-07-21 | Magna Electronics Inc. | Rear vision system with trailer angle detection |
| US20130226390A1 (en) | 2012-02-29 | 2013-08-29 | Robert Bosch Gmbh | Hitch alignment assistance |
| GB2513393B (en) | 2013-04-26 | 2016-02-03 | Jaguar Land Rover Ltd | Vehicle hitch assistance system |
| US9880560B2 (en) * | 2013-09-16 | 2018-01-30 | Deere & Company | Vehicle auto-motion control system |
| US9464886B2 (en) | 2013-11-21 | 2016-10-11 | Ford Global Technologies, Llc | Luminescent hitch angle detection component |
| CN106462314B (zh) * | 2014-05-06 | 2019-11-05 | 罗伯特·博世有限公司 | 帮助拖车附接的动态相机视图 |
-
2016
- 2016-06-24 DE DE102016211396.8A patent/DE102016211396B4/de not_active Expired - Fee Related
-
2017
- 2017-05-16 EP EP17724340.9A patent/EP3475106A1/de not_active Withdrawn
- 2017-05-16 WO PCT/EP2017/061708 patent/WO2017220257A1/de not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010035299A1 (de) * | 2010-08-20 | 2012-02-23 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren und Vorrichtung zum Bewegen eines Anhängers |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016211396A1 (de) | 2017-12-28 |
| WO2017220257A1 (de) | 2017-12-28 |
| DE102016211396B4 (de) | 2024-05-08 |
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