Parking guidance method for vehicle

• US 20080266137A1
• Filed: 11/02/2007
• Published: 10/30/2008
• Est. Priority Date: 04/30/2007
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Son, Jin Woo
• Granted Patent: US 8,258,933 B2
• Time in Patent Office: Days
• US Class Current: 340/932.2
• CPC Class Codes: B60W 2420/403 Image sensing, e.g. optical camera
• CPC Class Codes: B60W 2420/42 Image sensing, e.g. optical camera
• CPC Class Codes: B60W 30/06 Automatic manoeuvring for parking
• CPC Class Codes: B62D 15/0275 by overlaying a vehicle path based on present steering angle over an image without processing that image

Abstract

The present invention provides parking guidance methods for a vehicle, which comprises: calculating an estimated backward track of the vehicle from a current steering angle detected by a steering angle sensor; calculating an estimated parking space from the estimated backward track and a relative angle inputted by a driver through an input means; converting coordinates of the calculated estimated backward track and estimated parking space into image coordinates; synthesizing the converted image coordinates with an image acquired by a camera provided at the rear of the vehicle; and displaying the synthesized image on a monitor of the vehicle. The methods enhances driver'"'"'s convenience and safety in the event of back-in perpendicular parking.

Claims

1. A parking guidance method for a vehicle comprising:

calculating an estimated backward track of the vehicle from a current steering angle detected by a steering angle sensor;

calculating an estimated parking space from the estimated backward track and a relative angle inputted by a driver through an input means;

converting coordinates of the calculated estimated backward track and estimated parking space into image coordinates;

synthesizing the converted image coordinates with an image acquired by a camera provided at the rear of the vehicle; and

displaying the synthesized image on a monitor of the vehicle,

wherein the relative angle is an angle formed by a longitudinal axis of the vehicle which stops to park and a longitudinal axis of the vehicle which is placed in the estimated parking space.

2. The method of claim 1, wherein when the driver adjusts the relative angle by operation of the input means, the estimated parking space is rotationally moved so as to fit the estimated backward track with respect to the current steering angle and the estimated parking space after the rotational movement is further displayed on the monitor.

3. The method of claim 1, wherein when the driver adjusts the steering wheel angle by operation of steering wheel, the estimated parking space is moved in parallel so as to fit an estimated backward track with respect to an adjusted steering angle and the estimated parking space after the parallel movement is further displayed on the monitor.

4. The method of claim 1, wherein the estimated parking space is a space placed on the estimated backward track at a position that satisfies the relative angle, the longitudinal direction of the space being in the direction tangential to the estimated backward track.

5. The method of claim 4, wherein the estimated parking space comprises:

two side guide lines which are in a direction tangential to the estimated backward track and are parallely spaced from each other with a distance that can receive a vehicle; and

a front guide line which is in a direction perpendicular to the two side guide lines with a predetermined offset distance from the rear wheel axle toward the front of the vehicle.