REAR VISION SYSTEM FOR A VEHICLE

• US 20150077565A1
• Filed: 11/24/2014
• Published: 03/19/2015
• Est. Priority Date: 09/14/2004
• Status: Active Grant

• Current Assignee: Magna Electronics Incorporated (Magna International Incorporated)
• Original Assignee: Magna Electronics Incorporated (Magna International Incorporated)
• Inventors: Karner, Lee, Schofield, Kenneth, Lynam, Niall R.
• Granted Patent: US 8,976,247 B1
• Time in Patent Office: Days
• US Class Current: 348/148
• CPC Class Codes: B29C 45/0017 moulding interconnected elements which are movable with respect to one another, e.g. chains or hinges
• CPC Class Codes: B29C 45/14639 for obtaining an insulating effect, e.g. for electrical components
• CPC Class Codes: B29C 45/14754 being in movable or releasable engagement with the coating, e.g. bearing assemblies
• CPC Class Codes: B29C 45/1671 with an insert
• CPC Class Codes: B29L 2011/0058 Mirrors
• CPC Class Codes: B29L 2031/30 Vehicles, e.g. ships or aircraft, or body parts thereof vanes or blades B29L2031/08, air bags B29L2022/027
• CPC Class Codes: B60C 9/00 Reinforcements or ply arrangement of pneumatic tyres inserts having reinforcing means B60C5/08; bead structure, e.g. turnup or overlap construction, B60C15/00
• CPC Class Codes: B60Q 9/00 Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 , e.g. haptic signalling
• CPC Class Codes: B60Q 9/008 for anti-collision purposes
• CPC Class Codes: B60R 1/00 Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
• CPC Class Codes: B60R 1/04 mounted inside vehicle B60R1/025, B60R1/08 take precedence
• CPC Class Codes: B60R 1/06 mounted on vehicle exterior B60R1/025, B60R1/08 take precedence
• CPC Class Codes: B60R 1/12 Mirror assemblies combined with other articles, e.g. clocks
• CPC Class Codes: B60R 1/26 to the rear of the vehicle
• CPC Class Codes: B60R 11/04 Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
• CPC Class Codes: B60R 2001/1215 with information displays
• CPC Class Codes: B60R 2001/1223 with sensors or transducers
• CPC Class Codes: B60R 2001/1253 with cameras, video cameras or video screens
• CPC Class Codes: B60R 2001/1269 with sun visors
• CPC Class Codes: B60R 2011/0033 Rear-view mirrors
• CPC Class Codes: B60R 2300/105 : using multiple cameras
• CPC Class Codes: B60R 2300/308 : by overlaying the real scene, e.g. through a head-up display on the windscreen
• CPC Class Codes: B60R 2300/8026 : in addition to a rear-view mirror system
• CPC Class Codes: B60R 2300/8066 : for monitoring rearward traffic
• CPC Class Codes: B60R 2300/808 : for facilitating docking to a trailer
• CPC Class Codes: B60R 2300/8093 : for obstacle warning
• CPC Class Codes: G06T 2207/10016 : Video; Image sequence
• CPC Class Codes: G06T 2207/30232 : Surveillance
• CPC Class Codes: G06T 2207/30261 : Obstacle
• CPC Class Codes: G06T 7/13 : Edge detection
• CPC Class Codes: G06T 7/70 : Determining position or orientation of objects or cameras camera calibration G06T7/80
• CPC Class Codes: G06V 20/58 : Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
• CPC Class Codes: G08G 1/165 : for passive traffic, e.g. including static obstacles, trees
• CPC Class Codes: G08G 1/166 : for active traffic, e.g. moving vehicles, pedestrians, bikes
• CPC Class Codes: G08G 1/167 : Driving aids for lane monitoring, lane changing, e.g. blind spot detection
• CPC Class Codes: G09G 2300/023 : Display panel composed of stacked panels
• CPC Class Codes: G09G 2300/0456 : with a reflective area and a transmissive area combined in one pixel, such as in transflectance pixels
• CPC Class Codes: G09G 2340/12 : Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
• CPC Class Codes: G09G 2380/10 : Automotive applications
• CPC Class Codes: G09G 3/001 : using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background slide projectors per se G03B23/00 = 42 HP
• CPC Class Codes: G09G 3/346 : based on modulation of the reflection angle, e.g. micromirrors micromirrors devices per se G02B26/0833
• CPC Class Codes: G09G 5/026 : Control of mixing and/or overlay of colours in general G09G5/022 and G09G5/024 take precedence
• CPC Class Codes: H04N 7/181 : for receiving images from a plurality of remote sources
• CPC Class Codes: H04N 7/183 : for receiving images from a single remote source

Abstract

A camera vision system for a vehicle includes a rear backup video camera operable to capture video images rearward of the vehicle during a rear backup maneuver of the vehicle. A display device is operable to display video images captured by the rear backup video camera when the vehicle is shifted into reverse gear and the display continues during short term forward movement of the vehicle. An overlay is displayed with the video images to assist the driver during the rear backup maneuver. The display device is operable to display video images with a display intensity greater than 200 candelas/sq. meter. A control includes an image processor that image processes video images to detect objects that are within the rearward field of view of the rear backup video camera. The image processing by the image processor of captured video images includes use of an edge detection algorithm.

Claims

1. A camera vision system for a vehicle, said camera vision system comprising:

a rear backup video camera at a rear portion of a vehicle equipped with said camera vision system;

said rear backup video camera having a rearward field of view external of the equipped vehicle;

said rear backup video camera operable to capture video images rearward of the equipped vehicle during a rear backup maneuver of the equipped vehicle;

a display device comprising a video screen operable to display video images captured by said rear backup video camera for viewing by a driver of the equipped vehicle who is maneuvering the equipped vehicle;

wherein video images captured by said rear backup video camera are displayed by said display device when a transmission of the equipped vehicle is shifted into reverse gear by the driver and wherein said display by said video device of video images captured by said rear backup video camera continues during short term forward movement of the equipped vehicle;

wherein an overlay is displayed with video images captured by said rear backup video camera to assist the driver during the rear backup maneuver;

wherein said video screen of said display device comprises a backlit thin film transistor LCD video screen backlit by a plurality of white light emitting light emitting diodes;

wherein said display device is operable to display video images captured by said rear backup video camera with a display intensity, as viewed by the driver of the equipped vehicle, greater than 200 candelas/sq. meter;

a control comprising an image processor that image processes video images captured by said rear backup video camera in order to detect objects that are within the rearward field of view of said rear backup video camera and that are at least one of (i) near to a vehicle bumper of the equipped vehicle and (ii) approaching the equipped vehicle; and

wherein image processing by said image processor of captured video images comprises use of an edge detection algorithm.

2. The camera vision system of claim 1, wherein said display device is disposed at an interior rearview mirror assembly of the equipped vehicle and wherein at least one of (a) said display device displays video images for viewing through a mirror reflective element of said interior rearview mirror assembly by the driver of the equipped vehicle and (b) said display device automatically extends from said interior rearview mirror assembly responsive to the vehicle transmission being shifted into reverse gear, and wherein said interior rearview mirror assembly comprises a molded plastic mounting arm having at least one ball member at at least one end thereof and having electrical conducting elements extending therethrough, and wherein a mirror mounting portion is molded over said ball member, and wherein said mounting arm comprises a mounting arm polymeric material having a first linear mold shrinkage factor and a first flexural modulus, and wherein said mirror mounting portion comprises a mirror mounting polymeric material having a second linear mold shrinkage factor and a second flexural modulus, and wherein said second linear mold shrinkage factor is greater than said first linear mold shrinkage factor, and wherein said second flexural modulus is lower than said first flexural modulus.

3. The camera vision system of claim 1, wherein the short term forward movement of the equipped vehicle occurs during maneuvering of the equipped vehicle to connect a trailer hitch of the equipped vehicle to a trailer tongue.

4. The camera vision system of claim 3, wherein said overlay comprises at least one of an icon, an instruction, a marking and an indicia.

5. The camera vision system of claim 1, wherein said display device is operable to display video images captured by said rear backup video camera with a display intensity, as viewed by the driver of the equipped vehicle, greater than 300 candelas/sq. meter.

6. The camera vision system of claim 1, wherein said display device is operable to display video images captured by said rear backup video camera with a display intensity, as viewed by the driver of the equipped vehicle, greater than 400 candelas/sq. meter.

7. The camera vision system of claim 1, wherein said overlay displayed with video images captured by said rear backup video camera guides the driver when hitching a trailer to a trailer hitch of the equipped vehicle.

8. The camera vision system of claim 7, wherein the trailer hitch of the equipped vehicle is within said field of view of said rear backup video camera and wherein said overlay guides the driver to connect the trailer hitch to a trailer tongue of the trailer.

9. The camera vision system of claim 1, wherein said plurality of white light emitting light emitting diodes comprises an array of at least four white light emitting light emitting diodes.

10. The camera vision system of claim 1, wherein the equipped vehicle is further equipped with a sensor system selected from the group consisting of (i) a radar sensor system and (ii) an ultrasonic sensor system.

11. The camera vision system of claim 10, wherein said sensor system monitors a region external to the vehicle.

12. The camera vision system of claim 11, wherein said sensor system detects the presence of an obstacle and/or a human adjacent to the equipped vehicle.

13. The camera vision system of claim 1, wherein said rear backup video camera comprises a CMOS imaging array.

14. A camera vision system for a vehicle, said camera vision system comprising:

a rear backup video camera at a rear portion of a vehicle equipped with said camera vision system;

wherein said rear backup video camera comprises a CMOS imaging array;

said rear backup video camera having a rearward field of view external of the equipped vehicle;

said rear backup video camera operable to capture video images rearward of the equipped vehicle during a rear backup maneuver of the equipped vehicle;

a display device comprising a video screen operable to display video images captured by said rear backup video camera for viewing by a driver of the equipped vehicle who is maneuvering the equipped vehicle;

wherein video images captured by said rear backup video camera are displayed by said display device when a transmission of the equipped vehicle is shifted into reverse gear by the driver and wherein said display by said video device of video images captured by said rear backup video camera continues during short term forward movement of the equipped vehicle;

wherein an overlay is displayed with video images captured by said rear backup video camera to assist the driver during the rear backup maneuver;

wherein said video screen of said display device comprises a backlit thin film transistor LCD video screen backlit by a plurality of white light emitting light emitting diodes;

wherein said plurality of white light emitting light emitting diodes comprises an array of at least four white light emitting light emitting diodes;

wherein said display device is operable to display video images captured by said rear backup video camera with a display intensity, as viewed by the driver of the equipped vehicle, greater than 200 candelas/sq. meter;

a control comprising an image processor that image processes video images captured by said rear backup video camera in order to detect objects that are within the rearward field of view of said rear backup video camera and that are at least one of (i) near to a vehicle bumper of the equipped vehicle and (ii) approaching the equipped vehicle;

wherein image processing by said image processor of captured video images comprises use of an edge detection algorithm;

wherein the equipped vehicle is further equipped with a sensor system selected from the group consisting of (i) a radar sensor system and (ii) an ultrasonic sensor system;

wherein said sensor system monitors a region external to the vehicle; and

wherein said sensor system detects the presence of an obstacle and/or a human adjacent to the equipped vehicle.

15. The camera vision system of claim 14, wherein said display device is operable to display video images captured by said rear backup video camera with a display intensity, as viewed by the driver of the equipped vehicle, greater than 300 candelas/sq. meter.

16. The camera vision system of claim 14, wherein said display device is operable to display video images captured by said rear backup video camera with a display intensity, as viewed by the driver of the equipped vehicle, greater than 400 candelas/sq. meter.

17. The camera vision system of claim 14, wherein said overlay displayed with video images captured by said rear backup video camera guides the driver when hitching a trailer to a trailer hitch of the equipped vehicle, and wherein the trailer hitch of the equipped vehicle is within said field of view of said rear backup video camera and wherein said overlay guides the driver to connect the trailer hitch to a trailer tongue of the trailer.

18. A camera vision system for a vehicle, said camera vision system comprising:

a rear backup video camera at a rear portion of a vehicle equipped with said camera vision system;

wherein said rear backup video camera comprises a CMOS imaging array;

said rear backup video camera having a rearward field of view external of the equipped vehicle;

said rear backup video camera operable to capture video images rearward of the equipped vehicle during a rear backup maneuver of the equipped vehicle;

a display device comprising a video screen operable to display video images captured by said rear backup video camera for viewing by a driver of the equipped vehicle who is maneuvering the equipped vehicle;

wherein video images captured by said rear backup video camera are displayed by said display device when a transmission of the equipped vehicle is shifted into reverse gear by the driver and wherein said display by said video device of video images captured by said rear backup video camera continues during short term forward movement of the equipped vehicle;

wherein an overlay is displayed with video images captured by said rear backup video camera to assist the driver during the rear backup maneuver;

wherein said video screen of said display device comprises a backlit thin film transistor LCD video screen backlit by a plurality of white light emitting light emitting diodes;

wherein said plurality of white light emitting light emitting diodes comprises an array of at least four white light emitting light emitting diodes;

wherein said display device is operable to display video images captured by said rear backup video camera with a display intensity, as viewed by the driver of the equipped vehicle, greater than 200 candelas/sq. meter;

a control comprising an image processor that image processes video images captured by said rear backup video camera in order to detect objects that are within the rearward field of view of said rear backup video camera and that are at least one of (i) near to a vehicle bumper of the equipped vehicle and (ii) approaching the equipped vehicle;

wherein image processing by said image processor of captured video images comprises use of an edge detection algorithm;

wherein the equipped vehicle is further equipped with an ultrasonic sensor system;

wherein said sensor system monitors a region external to the vehicle;

wherein said sensor system detects the presence of an obstacle and/or a human adjacent to the equipped vehicle; and

wherein said overlay displayed with video images captured by said rear backup video camera guides the driver when hitching a trailer to a trailer hitch of the equipped vehicle, and wherein the trailer hitch of the equipped vehicle is within said field of view of said rear backup video camera and wherein said overlay guides the driver to connect the trailer hitch to a trailer tongue of the trailer.

19. The camera vision system of claim 18, wherein said display device is operable to display video images captured by said rear backup video camera with a display intensity, as viewed by the driver of the equipped vehicle, greater than 300 candelas/sq. meter.

20. The camera vision system of claim 18, wherein said display device is operable to display video images captured by said rear backup video camera with a display intensity, as viewed by the driver of the equipped vehicle, greater than 400 candelas/sq. meter.