System for monitoring the environment of a motor vehicle

• US 8,947,532 B2
• Filed: 01/20/2010
• Issued: 02/03/2015
• Est. Priority Date: 09/18/2007
• Status: Active Grant

• Current Assignee: Bayerische Motoren Werke AG
• Original Assignee: Bayerische Motoren Werke AG
• Inventors: Augst, Alexander
• Primary Examiner(s): Dastouri, Mehrdad
• Assistant Examiner(s): ANDERSON II, JAMES M
• Application Number:
  US12/690,658
• Publication Number:
  US 20100182432A1
• Time in Patent Office: 1,840 Days
• Field of Search: None
• US Class Current: 348/148
• 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 1/12 Mirror assemblies combined with other articles, e.g. clocks
• CPC Class Codes: B60R 1/28 with an adjustable field of view
• CPC Class Codes: B60R 2001/1215 with information displays
• CPC Class Codes: B60R 2001/1253 with cameras, video cameras or video screens
• CPC Class Codes: B60R 2300/106 using night vision cameras
• CPC Class Codes: B60R 2300/205 using a head-up display
• CPC Class Codes: B60R 2300/301 combining image information with other obstacle sensor information, e.g. using RADAR/LIDAR/SONAR sensors for estimating risk of collision
• CPC Class Codes: B60R 2300/302 combining image information with GPS information or vehicle data, e.g. vehicle speed, gyro, steering angle data
• CPC Class Codes: B60R 2300/305 merging camera image with lines or icons
• CPC Class Codes: B60R 2300/306 using a re-scaling of images
• CPC Class Codes: B60R 2300/50 characterised by the display information being shared, e.g. external display, data transfer to other traffic participants or centralised traffic controller
• CPC Class Codes: B60R 2300/70 characterised by an event-triggered choice to display a specific image among a selection of captured images
• CPC Class Codes: B60R 2300/8066 for monitoring rearward traffic

Abstract

A system for monitoring the environment of a motor vehicle, includes imaging devices for taking a sequence of images, which sequence contains images of at least a part of the environment of the motor vehicle. A display unit reproduces at least one image detail of the image sequence in the vehicle interior. A device automatically changes the detail of the environment shown by the reproduction of the image detail by the display unit. One or more devices for determining at least one earlier position of the motor vehicle is provided, wherein the environmental detail can be automatically adapted as a function of the earlier position of the motor vehicle.

Claims

1. A system for monitoring an environment of a motor vehicle, the system comprising:

one or more imaging devices for captured a sequence of images, which sequence contains images of at least a part of the environment of the motor vehicle;

a display unit for reproducing at least one image detail of the image sequence in an interior of the vehicle, said display unit including one or more devices for automatically changing an environmental detail shown by the reproduction of the image detail;

one or more devices for determining a plurality of earlier positions of the motor vehicle while the motor vehicle is traveling in a forward direction; and

wherein the environmental detail is automatically adaptable as a function of the each of the plurality of earlier positions of the motor vehicle, and wherein the automatic adaptation of the environmental detail further comprises changing an area of the environment to which the environmental detail corresponds;

wherein at least as a function of each of the plurality of earlier positions, a preferred display detail is definable in the environment of the motor vehicle; and

wherein the environmental detail is adaptable such that essentially the preferred display detail is continuously displayed.

2. The system according to claim 1, wherein the earlier positions are included in the determination of the preferred display detail with a different weighting as a function of at least one of:

their time-related past, and

their distance from a current vehicle position.

3. The system according to claim 1, wherein the preferred display detail is defined in a manner oriented according to a quality measurement, which quality measurement evaluates at least one of whether and where the earlier positions of the motor vehicle are contained in the display detail.

4. The system according to claim 1, wherein adaptation of the environmental detail additionally takes place as a function of a forward driving speed of the motor vehicle.

5. The system according to claim 1, wherein adaptation of the environmental detail additionally takes place as a function of at least one future position of the motor vehicle.

6. The system according to claim 1, further comprising:

one or more devices for determining a plurality of earlier steering angle values of the motor vehicle;

wherein the preferred display detail in the environment of the motor vehicle is further definable at least as a function of the plurality of earlier steering angle values.

7. The system according to claim 1, wherein the at least one earlier position of the motor vehicle is determinable by electronic map data.

8. The system according to claim 6, wherein the at least one earlier position of the motor vehicle is determinable by electronic map data.

9. The system according to claim 1, wherein the environmental detail is automatically adaptable as a function of additional state variables of the environment of the vehicle.

10. The system according to claim 9, wherein at least one object equipped with an RFID chip is detectable and locatable in the vehicle environment by a detection unit of the motor vehicle;

and

wherein the environmental detail is adaptable as a function of a position of the object.

11. The system according to claim 1, wherein a weighting of different influencing variables is adaptable based on operating actions of a vehicle occupant when defining the environmental detail.

12. The system according to claim 1, wherein at least one of:

(a) a display of the environmental detail takes place as a function of a position of the environmental detail with respect to the motor vehicle; and

(b) a display of the environmental detail is accompanied by a symbolic representation of the position of the environmental detail with respect to the motor vehicle.

13. The system according to claim 12, wherein arrangement of the environmental detail within a display surface of the display unit is a function of the position of the environmental detail with respect to the motor vehicle.

14. The system according to claim 13, wherein the display unit is one of:

(a) integrated in a mirror surface of a rearview mirror of the motor vehicle; and

(b) constructed as a mirror surface of the rearview mirror, in which the display surface not utilized for displaying the environmental detail is changeable to a reflective condition.

15. The system according to claim 12, wherein at least one of:

(a) a distortion of the environmental detail is a function of the position of the environmental detail with respect to the motor vehicle;

(b) as a function of at least one of the position of the environmental detail with respect of the motor vehicle and the used zoom factor, the image detail is arranged in a certain plane of a three-dimensional display.

16. The system according to claim 1, wherein a change of the environmental detail caused by a pitching or rolling motion of the motor vehicle is compensatable by an opposed adaptation of the image detail.

17. The system according to claim 1, wherein a change of the environmental detail caused by a vibration of the motor vehicle is compensatable by an opposed adaptation of the image detail.

18. The system according to claim 1, wherein the image detail is compressed at least temporarily in at least one edge area with respect to a central picture area.

19. The system according to claim 1, further comprising:

one or more devices for determining an operator'"'"'s eye position and/or viewing position; and

wherein the environmental detail is adaptable as a function of said eye position and/or viewing position.

20. The system according to claim 1, further comprising one or more devices for illuminating the vehicle environment, wherein the illumination of the vehicle environment is controlled as a function of the environmental detail.

21. The system according to claim 1, wherein the preferred display detail that is displayed corresponds to image data captured at one of the plurality of earlier positions and not at a current position of the motor vehicle.

22. The system according to claim 1, wherein the preferred display detail corresponds to a following vehicle.