Apparatus for assisting a parking-space entry operation of a vehicle

1. An apparatus for assisting a parking-space entry operation of a vehicle, comprising:

a back-up camera for acquiring a back-up image reproducing a space behind the vehicle,

a screen for displaying the back-up image,

a decision mark for a first steering input of the parking-space entry operation, which mark is to be brought into coincidence with at least a part of a boundary of a parking space, being depictable on the screen in superimposition with the back-up image, wherein multiple decision marks for the first steering input are depictable simultaneously on the screen, which multiple decision marks correspond respectively to different parking-space entry strategies each having a different minimum number of turns to be performed for the parking-space entry operation.

2. The apparatus according to claim 1 , wherein the decision marks are horizontal lines bringable into coincidence with the rear boundary, facing away from the vehicle, of the parking space in the context of a lateral parking-space entry operation.

3. The apparatus according to claim 2 , wherein at least one portion of an arc indicating the minimum turning circle of the vehicle is depictable on the screen in superimposition with the back-up image.

4. The apparatus according to claim 2 , wherein a second-decision mark for a second steering input, which mark is to be brought into coincidence with at least a part of a boundary of the parking space, is depictable on the screen in superimposition with the back-up image.

5. The apparatus according to claim 1 , wherein driving track boundaries indicating a driving track of the vehicle as a function of the steering input are depictable on the screen in superimposition with the back-up image.

6. The apparatus according to claim 5 , wherein at least one portion of an arc indicating the minimum turning circle of the vehicle is depictable on the screen in superimposition with the back-up image.

7. The apparatus according to claim 6 , wherein the screen is a color screen and the driving track boundaries or the at least one portion for indication of the minimum turning circle are depictable in respectively different colors.

8. The apparatus according to claim 5 , wherein a second-decision mark for a second steering input, which mark is to be brought into coincidence with at least a part of a boundary of the parking space, is depictable on the screen in superimposition with the back-up image.

9. The apparatus according to claim 1 , wherein at least one portion of an arc indicating the minimum turning circle of the vehicle is depictable on the screen in superimposition with the back-up image.

10. The apparatus according to claim 9 , wherein a second-decision mark for a second steering input, which mark is to be brought into coincidence with at least a part of a boundary of the parking space, is depictable on the screen in superimposition with the back-up image.

11. The apparatus according to claim 1 , wherein a second-decision mark for a second steering input, which mark is to be brought into coincidence with at least a part of a boundary of the parking space, is depictable on the screen in superimposition with the back-up image.

12. The apparatus according to claim 11 , wherein multiple second-decision marks for the second steering input are depictable on the screen, each mark corresponding to a different minimum number of turns to be executed for the parking-space entry operation.

13. The apparatus according to claim 11 , wherein at least one of the second-decision marks is a circle segment, or a straight-line portion approximated to the circle segment, that is bringable into coincidence with an inner boundary of the parking space in the context of a lateral parking-space entry operation.

14. The apparatus according to claim 11 , wherein at least one of the second-decision marks is a circle segment, or a straight-line portion approximated to the circle segment, intersecting the depiction of the minimum turning circle.

15. The apparatus according to claim 11 , wherein at least one of the second-decision marks is a circle segment, or a straight-line portion approximated to the circle segment, that intersects the depiction of a driving track boundary.

16. The apparatus according to claim 1 , wherein the decision marks are equipped with numerals corresponding to the respective minimum total number of turns to be executed for the parking-space entry operation.

17. The apparatus according to claim 1 , wherein the screen is a color screen and the decision marks are depictable in respectively different colors.

18. The apparatus according to claim 1 , wherein the decision marks are depictable as a function of the steering input.

19. The apparatus according to claim 1 , wherein at least one of the decision marks can be blanked out.

20. A method for assisting a parking-space entry operation of a vehicle, comprising:

acquiring a back-up image with a back-up camera;

displaying the back-up image on a display screen; and

superimposing on the display screen a decision mark for a first steering input of the parking-space entry operation, which mark is to be brought into coincidence with at least a part of a boundary of a parking space, wherein multiple decision marks for the first steering input are depictable simultaneously on the screen, which marks correspond respectively to a different minimum number of turns to be performed for the parking-space entry operation.