Vehicle backward movement assist device and vehicle parking assist device

• US 7,263,420 B2
• Filed: 08/27/2004
• Issued: 08/28/2007
• Est. Priority Date: 08/28/2003
• Status: Active Grant

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.), Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Aisin Seiki Kabushiki Kaisha (Aisin Corp.), Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Matsui, Akira, Satonaka, Hisashi, Kataoka, Hiroaki, Sugiyama, Toru, Kubota, Yuichi, Endo, Tomohiko, Iwazaki, Katsuhiko, Iwakiri, Hideyuki, Kawakami, Seiji, Tanaka, Yuu, Iwata, Yoshifumi
• Primary Examiner(s): Nguyen; Thu V.
• Application Number:
  US10/927,051
• Publication Number:
  US 20050049766A1
• Time in Patent Office: 1,096 Days
• Field of Search: 701/36
• US Class Current: 701/36
• CPC Class Codes: B60T 2201/10 Automatic or semi-automatic parking aid systems
• CPC Class Codes: B62D 15/0285 Parking performed automatically

Abstract

A vehicle backward movement assist device includes an image capturing means for capturing an image of an outside area in back of a vehicle, a parking mode judging means for judging whether a parking mode by reversing of the vehicle is a back-in parking or a parallel parking, a target parking position inputting means for setting a target parking position where the vehicle is parked based on the parking mode determined by the parking mode judging means, and a displaying means for displaying the image captured by the image capturing means and superimposedly displaying the target parking position set by the target parking position inputting means on the captured image so as to guide the vehicle to the target parking position.

Claims

1. A vehicle backward movement assist device comprising:

an image capturing means for capturing an image of an outside area in back of a vehicle;

a parking mode judging means for judging whether a parking mode by reversing of the vehicle is a back-in parking or a parallel parking, the parking mode judging means determines that the parking mode is the parallel parking when a deflection angle of a running path of the vehicle is equal to or smaller than a predetermined threshold value within a predetermined distance or a predetermined time before a shift lever is positioned in a reverse range;

a target parking position inputting means for setting a target parking position where the vehicle is parked based on the parking mode determined by the parking mode judging means; and

a displaying means for displaying the image captured by the image capturing means and superimposedly displaying the target parking position set by the target parking position inputting means on the captured image so as to guide the vehicle to the target parking position.

2. A vehicle backward movement assist device according to claim 1, wherein when the parking mode is determined to be the back-in parking by the parking mode judging means, a display of the target parking position on the displaying means is moved on an image coordinate system by the target parking position inputting means and when the parking mode is determined to be the parallel parking by the parking mode judging means, the display of the target parking position on the displaying means is moved on a world coordinate system by the target parking position inputting means.

3. A vehicle backward movement assist device according to claim 2, wherein the target parking position inputting means moves the display of the target parking position on the displaying means in a direction of a single coordinate axis out of coordinate axes constituting the image coordinate system in case of the back-in parking being performed, and moves the display of the target parking position on the displaying means in the direction of the single coordinate axis out of the coordinate axes constituting the world coordinate system in case of the parallel parking being performed.

4. A vehicle backward movement assist device according to claim 2, wherein when the parking mode is determined to be the back-in parking by the parking mode judging means and the target parking position is moved in parallel on the displaying means, the display of the target parking position on the displaying means is moved on the image coordinate system by the target parking position inputting means.

5. A vehicle backward movement assist device according to claim 1, wherein when the parking mode is determined to be the parallel parking by the parking mode judging means, the target parking position is moved on a world coordinate system to be set as an actual target parking position which is converted into an image on an image coordinate system so as to be displayed on the displaying means and when the parking mode is determined to be the back-in parking by the parking mode judging means, the target parking position is moved on the image coordinate system and set as the actual target parking position on the world coordinate system which is converted into an image on the image coordinate system so as to be displayed on the displaying means.

6. A vehicle backward movement assist device comprising:

an image capturing means for capturing an image of an outside area in back of vehicle;

a parking mode judging means for judging whether a parking mode by reversing of the vehicle is a back-in parking or a parallel parking, the parking mode judging means determines that the parking mode is the parallel parking when a deflection angle of a running path of the vehicle is equal to or smaller than a predetermined threshold value within a predetermined distance or a predetermined time before a shift lever is positioned in a reverse range;

a target parking position inputting means for setting a target parking position where the vehicle is parked based on the parking mode determined by the parking mode judging means;

a target parking position storing means including one or more storage areas for a target parking position information for storing the target parking position in a selected storage area and for selectively calling the stored target parking position to set as the target parking position at that time; and

a displaying means for displaying the image captured by the image capturing means and superimposedly displaying the target parking position set by the target parking position inputting means or the target parking position storing means on the captured image so as to guide the vehicle to the target parking position.

7. A vehicle backward movement assist device according to claim 6, wherein when the parking mode is determined to be the back-in parking by the parking mode judging means, a display of the target parking position on the displaying means is moved on an image coordinate system by the target parking position inputting means and when the parking mode is determined to be the parallel parking by the parking mode judging means, the display of the target parking position on the displaying means is moved on a world coordinate system by the target parking position inputting means.

8. A vehicle backward movement assist device according to claim 7, wherein the target parking position inputting means moves the display of the target parking position on the displaying means in a direction of a single coordinate axis out of coordinate axes constituting the image coordinate system in case of the back-in parking being performed, and moves the display of the target parking position on the displaying means in the direction of the single coordinate axis out of the coordinate axes constituting the world coordinate system in case of the parallel parking being performed.

9. A vehicle backward movement assist device according to claim 7, wherein when the parking mode is determined to be the back-in parking by the parking mode judging means and the target parking position is moved in parallel on the displaying means, the display of the target parking position on the displaying means is moved on the image coordinate system by the target parking position inputting means.

10. A vehicle backward movement assist device according to claim 6, wherein when the parking mode is determined to be the parallel parking by the parking mode judging means, the target parking position is moved on a world coordinate system to be set as an actual target parking position which is converted into an image on an image coordinate system so as to be displayed on the displaying means and when the parking mode is determined to be the back-in parking by the parking mode judging means, the target parking position is moved on the image coordinate system and set as the actual target parking position on the world coordinate system which is converted into an image on the image coordinate system so as to be displayed on the displaying means.

11. A vehicle backward movement assist device according to claim 10, wherein the target parking position storing means stores the target parking position as an equation or a figure and also stores an information of whether the parking mode is the parallel parking or the back-in parking.