SYSTEMS AND METHODS FOR PREVENTING MOTOR VEHICLE DOORS FROM COMING INTO CONTACT WITH OBSTACLES

• US 20090000196A1
• Filed: 06/27/2007
• Published: 01/01/2009
• Est. Priority Date: 06/27/2007
• Status: Abandoned Application

• Current Assignee: GM Global Technology Operations Incorporated (General Motors Company)
• Original Assignee: GM Global Technology Operations Incorporated (General Motors Company)
• Inventors: Wilson, Thomas A., Kollar, Craig A.
• Application Number:
  US11/769,331
• Publication Number:
  US 20090000196A1
• Time in Patent Office: Days
• US Class Current: 49/28
• CPC Class Codes: E05F 15/43 responsive to disruption of energy beams, e.g. light or sound
• CPC Class Codes: E05F 2015/432 with acoustical sensors
• CPC Class Codes: E05F 2015/434 with cameras or optical sensors
• CPC Class Codes: E05Y 2900/546 Tailboards, tailgates or sideboards opening upwards

Abstract

Systems and methods are provided for preventing a door from contacting an obstacle. One system includes a camera, a sensor, and a controller. The camera and the sensor are each configured to detect if the obstacle is within a path of the door. Another system includes an ultrasonic sensor, a near field sensor, and a controller. The ultrasonic sensor and the near field sensor are each configured to detect if the obstacle is within a path of the door. The controller in each system is configured to disable the door if the obstacle is detected within the path. One method includes the steps of visually or non-visually detecting if an obstacle is within an opening/closing path of a door when the obstacle is within or outside a camera field of view, respectively, and disabling the door if the obstacle is detected.

Claims

1. A system for preventing a motor vehicle door from coming into contact with an obstacle within an opening/closing path of the door, the system comprising:

a first camera coupled to the motor vehicle, the first camera configured to detect if the obstacle is within the opening/closing path;

a sensor coupled to the motor vehicle, the sensor configured to detect if the obstacle is within the opening/closing path; and

a controller coupled to the first camera and the sensor, the controller configured to disable the door if the obstacle is detected within the opening/closing path.

2. The system of claim 1, wherein the first camera is configured to detect the obstacle within a first portion of the opening/closing path and the sensor is configured to detect the obstacle within a second portion of the opening/closing path.

3. The system of claim 1, wherein the first camera is a three-dimensional time of flight (TOF) camera.

4. The system of claim 1, wherein the first camera is coupled to an exterior portion of the door.

5. The system of claim 4, further comprising a second camera coupled to an interior portion of the door and in communication with the controller, wherein one of the first and second cameras are a 3-dimensional TOF camera.

6. The system of claim 1, wherein the controller is further configured to disable the door if the obstacle is detected within a threshold distance of the opening/closing path.

7. The system of claim 1, wherein the sensor is a near field sensor.

8. The system of claim 7, wherein the near field sensor surrounds at least a portion of a perimeter of the door.

9. The system of claim 1, wherein the sensor is a second camera.

10. The system of claim 1, wherein the first camera is a three-dimensional time of flight (TOF) camera and the sensor is a near field sensor.

11. The system of claim 1, wherein the door is one of a liftgate, a sliding door, a front side door, and a rear side door.

12. A system for preventing a motor vehicle door from coming into contact with an obstacle within an opening/closing path of the door, the system comprising:

a first ultrasonic sensor coupled to the motor vehicle, the first ultrasonic sensor configured to detect if the obstacle is within the opening/closing path;

a near field sensor coupled to the door, the near field sensor configured to detect if the obstacle is within the opening/closing path; and

a controller coupled to the first ultrasonic sensor and the near field sensor, the controller configured to disable the door if the obstacle is detected within the opening/closing path.

13. The system of claim 12, further comprising a second ultrasonic sensor coupled to the controller, the second ultrasonic sensor configured to determine if the obstacle is within the closing/opening path.

14. The system of claim 12, wherein the near field sensor surrounds at least a portion of a perimeter of the door.

15. The system of claim 12, wherein the controller is further configured to disable the door if the obstacle is detected within a threshold distance of the opening/closing path.

16. A method for preventing a motor vehicle door having an opening/closing path from contacting an obstacle via a camera having a field of view and a sensor, comprising the steps of:

visually detecting if the obstacle is within the opening/closing path when the obstacle is within the field of view;

non-visually detecting if the obstacle is within the opening/closing path when the obstacle is outside the field of view; and

automatically disabling the motor vehicle door if the obstacle is detected within the opening/closing path.

17. The method of claim 16, wherein the motor vehicle door is disabled when the motor vehicle door is within a threshold distance of the obstacle.

18. The method of claim 17, wherein the threshold distance is in the range of about 20 mm to about 200 mm.

19. The method of claim 16, wherein the non-visually detecting step comprises capacitively detecting if the obstacle is within the threshold distance.

20. The method of claim 16, wherein the visually detecting step comprises the step of using three-dimensional imaging to determine if the obstacle is with the opening/closing path.