WO2016112890A1 - Caméra d'un système d'assistance à la conduite d'un véhicule automobile - Google Patents

Caméra d'un système d'assistance à la conduite d'un véhicule automobile Download PDF

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Publication number
WO2016112890A1
WO2016112890A1 PCT/DE2015/200529 DE2015200529W WO2016112890A1 WO 2016112890 A1 WO2016112890 A1 WO 2016112890A1 DE 2015200529 W DE2015200529 W DE 2015200529W WO 2016112890 A1 WO2016112890 A1 WO 2016112890A1
Authority
WO
WIPO (PCT)
Prior art keywords
camera
image sensor
circuit board
carrier
printed circuit
Prior art date
Application number
PCT/DE2015/200529
Other languages
German (de)
English (en)
Inventor
Franz Pfeiffer
Original Assignee
Conti Temic Microelectronic Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Conti Temic Microelectronic Gmbh filed Critical Conti Temic Microelectronic Gmbh
Priority to DE112015003570.2T priority Critical patent/DE112015003570A5/de
Publication of WO2016112890A1 publication Critical patent/WO2016112890A1/fr

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/51—Housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2217/00—Details of cameras or camera bodies; Accessories therefor
    • G03B2217/002—Details of arrangement of components in or on camera body

Definitions

  • the invention relates to a camera of a driver assistance system of a motor vehicle, with an image sensor and, on the other hand, to a driver assistance system of a motor vehicle.
  • Motor vehicles include a variety of assistance systems, such. Rain sensors, lane departure warning or fatigue warning assistants.
  • Each such assistance system has a camera, by means of which the windshield, the road or the driver is detected during operation. The detected image is checked for deviations from a certain desired state, and in the presence of an actuator actuated, such as a windscreen wiper motor, a motor for influencing the steering angle or an acoustic or optical signal generator.
  • an actuator actuated such as a windscreen wiper motor, a motor for influencing the steering angle or an acoustic or optical signal generator.
  • the camera has only a circuit board on both the image sensor and the main processor of the control electronics are soldered.
  • the main processor and thus also the adjacent image sensor are heated up, which leads to increased noise within the recorded images.
  • the image quality is reduced, and the quality of the images taken by the camera does not match the quality for which the image sensor is designed.
  • the invention has for its object to provide a particularly suitable camera of a driver assistance system of a motor vehicle and a particularly suitable driver assistance system of a motor vehicle, with a camera, in particular increased image quality and preferably costs are reduced.
  • the camera is part of a motor vehicle and in particular a driver assistance system, such as a parking aid, by means of which in particular a front area is detected by means of the camera.
  • the camera is part of a surround view system.
  • a lateral region of the motor vehicle is detected by means of the camera, so that a facilitated exit by means of the motor vehicle is made possible.
  • the optical axis of the camera is perpendicular to the orientation of the motor vehicle, but at least an angle between them of between 1 10 ° and 70 ° is formed.
  • the optical axis is parallel to the orientation of the motor vehicle, but at least an angle between them is less than 20 ° and in particular less than 10 °.
  • the area in front of the motor vehicle is suitably detected with the camera.
  • the camera comprises an image sensor, which is for example a CCD or particularly preferably a CMOS chip. In other words, the image sensor works according to the CCD or CMOS principle.
  • the camera further has a camera housing with an outer wall, which is designed, for example, in the manner of a hollow cylinder. In other words, the outer wall does not include a lid. Alternatively, the outer wall has a lid, and the outer wall is shaped like a container. Within the outer wall, a support of the camera body is arranged.
  • the carrier is at least partially, preferably completely, surrounded by the outer wall. Consequently, the carrier is at least partially surrounded by the outer wall. Conveniently, the carrier is completely surrounded by the outer wall and protected by this.
  • the carrier is disposed within the outer wall.
  • the carrier is connected to the outer wall and formed, for example, on the outer wall. In other words, the camera body is preferably in one piece.
  • the carrier is for example part of a substantially U-shaped holder, with two mutually parallel legs, which are connected to each other at the free end by means of the carrier as this perpendicular leg.
  • the legs of the carrier is attached to the outer wall and suitably secured to the outer wall.
  • the holder is in one piece as well as e.g. designed in one piece with the outer wall, which simplifies the production.
  • the carrier is expediently arranged perpendicular to an optical axis of the camera and preferably forms an intermediate plane of the camera housing within the outer wall, wherein the extent of the intermediate plane perpendicular to the optical axis is less than or equal to the plane bounded by the outer wall.
  • at least one side, preferably circumferentially, a slot is formed between the carrier and the outer wall.
  • the image sensor is at least partially surrounded by the outer wall, preferably completely. In this way, the image sensor is protected by means of the outer wall against mechanical damage and environmental influences, or at least their influence is reduced.
  • the image sensor is attached to the carrier.
  • both the carrier and the image sensor are arranged perpendicular to the optical axis.
  • the image sensor is suitably attached directly to the carrier.
  • the image sensor is in direct mechanical contact with the carrier.
  • the image sensor is glued to the carrier.
  • a heat conducting foil or thermal paste is arranged between the image sensor and the carrier, which can dissipate heat dissipated due to the operation of the image sensor to the camera body.
  • thermoelectric cooling element is arranged between the carrier and the image sensor.
  • the image sensor is not in direct mechanical contact with the carrier.
  • the image sensor is in direct mechanical contact with the thermoelectric cooling element and the thermoelectric cooling element is preferably in direct mechanical contact with the support.
  • the image sensor is thermally conductively connected to the thermoelectric cooling element, for example by means of thermal paste.
  • the thermoelectric cooling element is glued in particular to the image sensor.
  • the thermoelectric cooling element is a Peltier element, resulting in only slightly increased cost and a relatively low weight gain.
  • thermoelectric cooling element so regardless of whether the image sensor is in direct or indirect mechanical contact with the carrier, takes place when mounting the image sensor to the carrier a Rollwinkeljustage. Because of the comparatively small error tolerance of the camera house, the adjustment is, for example, only a correct positioning of the camera body on a ground workbench. Due to the connection of the image sensor to the carrier thus eliminates a further step, namely a subsequent adjustment, resulting in a reduced production time and manufacturing costs, and in particular is required if the camera is located in front of the motor vehicle area.
  • the image sensor is a bare die. In other words, the image sensor has no housing. In other words, the image sensor is a nude chip.
  • the image sensor is electrically contacted to the printed circuit board, for example, by means of a flexible printed circuit (FPC). In other words, by means of the flex circuit board, the measurement data acquired by means of the image sensor are directed to the printed circuit board.
  • the image sensor is electrically contacted by bonding to the circuit board. In other words, the image sensor is bonded to the circuit board.
  • this is a thin wire with a diameter between 10 ⁇ and 25 ⁇ or a thick wire with a diameter between 100 ⁇ and 500 ⁇ used.
  • the image sensor and the printed circuit board are mounted within the outer wall and in a further step, the electrical connection between them created.
  • the mounting of the image sensor and the circuit board is simplified, whereas the electrical coupling of the two requires only a small footprint.
  • the tool required for this purpose is introduced through an opening of the camera housing, within which an optic of the camera is positioned in the assembled state.
  • the control unit is realized by means of a main processor, which is part of the printed circuit board.
  • the main processor is soldered to the circuit board.
  • the main processor is a surface mount device ("SMD" device) which is preferably attached to the circuit board by a BGA process
  • the main processor is bonded to the printed circuit board, more particularly, the carrier is located between the main processor and the image sensor or in combination therewith, the printed circuit board is positioned between the carrier and the main processor 12. Due to such an arrangement, heat input from the relatively hot main processor to the image sensor is reduced.
  • the dimension of the circuit board is less than or equal to 40mm x 40mm.
  • the dimension hereby designates the extent of the printed circuit board in a plane which corresponds to the main expansion plane of the printed circuit board, that is, which is parallel to the printed circuit board. Conveniently, this plane is perpendicular to the optical axis of the camera.
  • the printed circuit board is square or at least rectangular in shape. In particular, in this case an edge length of less than 35 mm, 30 mm, 25 mm or 20 mm. Conveniently, each of the edge lengths is greater than 15 mm, 20 mm, 25 mm, 30 mm, 35 mm. In this way, a comparatively compact printed circuit board is realized, so that the camera body can be manufactured with comparatively small dimensions, which facilitates installation within the motor vehicle.
  • the circuit board has a recess, within which the carrier is at least partially positioned.
  • the carrier is part of a holder, for example, the carrier is preferably located completely inside the recess.
  • the circuit board is expediently partially removed for creating the recess, for example milled.
  • the recess is made in the manner of a blind hole.
  • the output not completely through the PCB through. Consequently, the recess is a recess of the circuit board.
  • the printed circuit board is attached to the carrier. For example, these are screwed together or glued together. In other words, a pocket geometry is created this way.
  • a displacement of the circuit board with respect to the carrier is substantially prevented, so that the camera is relatively robust. If the image sensor is bonded to the circuit board, consequently, the electrical connections between the image sensor and the printed circuit board, even with shocks of the camera body are charged comparatively low, for example, in a poor travel.
  • a lens is attached to the camera body.
  • the outer wall expediently has an opening in the manner of a hole, within which the lens is mounted.
  • the lens is integral with the camera body, which prevents detachment.
  • the camera body does not include a lens holder so that the number of parts needed to create the camera is reduced.
  • the lens has, for example, a plastic or glass lens.
  • the objective comprises a lens system with at least one glass lens and one plastic lens.
  • the camera body is made of a metal.
  • the camera body is contacted with ground, so that short circuits from the printed circuit board to the camera body are reduced due to the comparatively low electrical voltages.
  • the camera body is relatively robust in this way. If the image sensor is connected to the carrier and thermally connected thereto, the image sensor thus essentially has the temperature of the camera body. In addition, if the main processor is present, a release of heat via the camera body to the environment is made possible, so that a substantially constant temperature prevails within the camera body.
  • the metal used is aluminum or an aluminum alloy.
  • the image sensor and the printed circuit board is protected by the outer wall and the lid from environmental influences.
  • the space within the camera body is dust and moisture protected and is created by means of the one hand, the outer wall, a possible bottom of the camera body, the lid and in particular the lens.
  • the driver assistance system of a motor vehicle has a camera with a camera housing, which comprises an outer wall and a carrier connected thereto.
  • the carrier is at least partially surrounded by the outer wall, and in particular completely.
  • the camera further comprises an image sensor and a printed circuit board with a printed circuit board.
  • the carrier is arranged between the image sensor and the printed circuit board, in particular mechanically.
  • FIG. 4-6 different mounting states of the camera. Corresponding parts are provided in all figures with the same reference numerals.
  • a bonding tool 50 is inserted through the opening 20 in the space formed by the outer wall 16 and the circuit board 40 and the bonding wires 48 of the image sensor 10 with non-illustrated interconnects Printed circuit board 40 electrically contacted.
  • the image sensor 10 is bonded to the circuit board 40.
  • the image sensor 10 is signal-wise connected to the main processor 44 by means of the bonding wires 48 and the printed conductors.
  • the lens 8 is positioned within the opening 20 and connected there.
  • the printed circuit board 38 is signal-wise connected to a line by means of which the camera 4 is coupled in the assembled state with the signal device 6. Further, the camera body 14 is closed with the lid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)

Abstract

L'invention concerne une caméra (4) d'un système d'assistance à la conduite (2) d'un véhicule automobile, dotée d'un capteur d'images (10), d'un sous-ensemble plat (38) comportant une carte de circuit imprimé (40) et d'un boîtier de caméra (14). Le boîtier (14) de la caméra comprend une paroi externe (16) et un support (28) relié à la paroi (16), qui est entouré au moins en partie par la paroi externe (16) et est disposé entre le capteur d'images (10) et la carte de circuit imprimé (40). L'invention concerne en outre un système d'assistance à la conduite (2) d'un véhicule automobile.
PCT/DE2015/200529 2015-01-15 2015-12-08 Caméra d'un système d'assistance à la conduite d'un véhicule automobile WO2016112890A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112015003570.2T DE112015003570A5 (de) 2015-01-15 2015-12-08 Kamera eines Fahrerassistenzsystems und Fahrerassistenzsystem eines Kraftfahrzeugs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015200582.8A DE102015200582A1 (de) 2015-01-15 2015-01-15 Kamera eines Fahrerassistenzsystems und Fahrerassistenzsystem eines Kraftfahrzeugs
DE102015200582.8 2015-01-15

Publications (1)

Publication Number Publication Date
WO2016112890A1 true WO2016112890A1 (fr) 2016-07-21

Family

ID=55304808

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2015/200529 WO2016112890A1 (fr) 2015-01-15 2015-12-08 Caméra d'un système d'assistance à la conduite d'un véhicule automobile

Country Status (2)

Country Link
DE (2) DE102015200582A1 (fr)
WO (1) WO2016112890A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024017443A1 (fr) 2022-07-19 2024-01-25 Continental Autonomous Mobility Germany GmbH Module de caméra et procédé de production d'un module de caméra
DE102022208782A1 (de) 2022-07-19 2024-01-25 Continental Autonomous Mobility Germany GmbH Kameramodul und Verfahren zur Herstellung eines Kameramoduls

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019207178A1 (de) * 2019-05-16 2020-11-19 Continental Automotive Gmbh Bildsensor mit einer Beleuchtungsvorrichtung

Citations (4)

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Publication number Priority date Publication date Assignee Title
JP2007166006A (ja) * 2005-12-09 2007-06-28 Sony Corp 撮像装置
JP2008177917A (ja) * 2007-01-19 2008-07-31 Canon Inc 固体撮像装置
JP2009100374A (ja) * 2007-10-18 2009-05-07 Olympus Imaging Corp 撮像素子冷却ユニット、撮影レンズユニットおよび電子機器
US20090190915A1 (en) * 2008-01-29 2009-07-30 Leonelli Jr Frank Paul Snap-in retainer for a sensor system

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
JP2000069336A (ja) * 1998-08-26 2000-03-03 Sanyo Electric Co Ltd 撮像装置の取付け構造
JP4250480B2 (ja) * 2003-08-08 2009-04-08 キヤノン株式会社 固体撮像装置
DE102008001675A1 (de) * 2008-05-09 2009-11-12 Robert Bosch Gmbh Kameramodul mit verbessertem Kühlkonzept
DE102012222905A1 (de) * 2012-12-12 2014-06-12 Robert Bosch Gmbh Kameraanordnung und Verfahren zu deren Herstellung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007166006A (ja) * 2005-12-09 2007-06-28 Sony Corp 撮像装置
JP2008177917A (ja) * 2007-01-19 2008-07-31 Canon Inc 固体撮像装置
JP2009100374A (ja) * 2007-10-18 2009-05-07 Olympus Imaging Corp 撮像素子冷却ユニット、撮影レンズユニットおよび電子機器
US20090190915A1 (en) * 2008-01-29 2009-07-30 Leonelli Jr Frank Paul Snap-in retainer for a sensor system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024017443A1 (fr) 2022-07-19 2024-01-25 Continental Autonomous Mobility Germany GmbH Module de caméra et procédé de production d'un module de caméra
DE102022208782A1 (de) 2022-07-19 2024-01-25 Continental Autonomous Mobility Germany GmbH Kameramodul und Verfahren zur Herstellung eines Kameramoduls

Also Published As

Publication number Publication date
DE102015200582A1 (de) 2016-07-21
DE112015003570A5 (de) 2017-05-24

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