Parking assist system

• US 8,374,749 B2
• Filed: 05/14/2008
• Issued: 02/12/2013
• Est. Priority Date: 05/16/2007
• Status: Active Grant

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Original Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Inventors: Tanaka, Yu
• Primary Examiner(s): Beaulieu, Yonel
• Application Number:
  US12/531,432
• Publication Number:
  US 20100049402A1
• Time in Patent Office: 1,735 Days
• Field of Search: 701 41- 44, 701/36, 340/932.2, 340/425.5
• US Class Current: 701/41
• CPC Class Codes: B60R 1/26 to the rear of the vehicle
• CPC Class Codes: B60R 2300/304 using merged images, e.g. merging camera image with stored images
• CPC Class Codes: B60R 2300/305 merging camera image with lines or icons
• CPC Class Codes: B60R 2300/806 for aiding parking
• CPC Class Codes: B60W 10/18 including control of braking systems
• CPC Class Codes: B60W 10/20 including control of steering systems
• CPC Class Codes: B60W 2420/403 Image sensing, e.g. optical camera
• CPC Class Codes: B62D 15/027 Parking aids, e.g. instruction means
• CPC Class Codes: B62D 15/0285 Parking performed automatically

Abstract

The parking assist system assists the maneuvering for moving a vehicle to a reverse start position, then moving it in reverse from the reverse start position to a predetermined parking position in a manner as follows. A parking target setting section sets a parking target position corresponding to the predetermined parking position, based upon a parking reference detected based on image data captured from the scene around the vehicle. A parking path calculating section sequentially calculates a parking path from a present position of the vehicle to the parking target position, in the course of forward movement along a forward path. A parking path determining section determines whether an effective parking path has been established or not, based upon result of calculation by the parking path calculating section.

Claims

1. A parking assist system for assisting a parking operation of a vehicle including forward movement to a reverse start position and subsequent reverse movement from the reverse start position to park the vehicle at a predetermined parking position, said system comprising:

an image receiving section for obtaining image data captured by an image capturing device mounted on the vehicle from a scene around the vehicle;

a parking reference detecting section for repeatedly detecting, based on said image data, a parking reference for use in parking the vehicle, during the forward movement of the vehicle to said reverse start position;

a parking target setting section for repeatedly setting, based on said parking reference, a parking target position corresponding to said predetermined parking position, during the forward movement of the vehicle to said reverse start position;

a parking path calculating section for successively calculating a parking path from a current position of the vehicle to said parking target position, based on said parking target positions and said parking references; and

a parking path determining section for determining whether the parking path has been established effective or not, based upon the result of the calculation by said parking path calculating section,

wherein a position where the parking path determined by the parking path determining section is established effective is set as the reverse start position.

2. The parking assist system according to claim 1, wherein said parking path calculating section calculates said parking path, each time the vehicle has moved forward by a predetermined distance.

3. The parking assist system according to claim 1, wherein said parking path calculating section calculates said parking path, each time the vehicle has moved for an arc of a predetermined angle.

4. The parking assist system according to claim 1, further comprising an informing outputting section for informing result of determination when it is determined that the parking path has been established effective.

5. The parking assist system according to claim 1, wherein said parking reference comprises a parking space delimiting line.

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

an image outputting section for outputting an output image including the scene around the vehicle superposed at least with said parking target position to a display device provided in the interior of the vehicle; and

an instruction input receiving section for receiving an instruction by the driver of the vehicle;

wherein said parking target setting section adjusts said parking target position, based upon an instruction inputted by the driver according to said output image.

7. The parking assist system according to claim 1, further comprising a guiding section for guiding the reverse movement of the vehicle from said reverse start position to said parking target position along said parking path.

8. The parking assist system according to claim 7, wherein said guiding section guides the vehicle by an automatic steering control.

9. The parking assist system according to claim 2, further comprising an informing outputting section for informing result of determination when it is determined that the parking path has been established effective.

10. The parking assist system according to claim 3, further comprising an informing outputting section for informing result of determination when it is determined that the parking path has been established effective.