METHOD FOR UNLOCKING A MOTOR VEHICLE AND FOR ENABLING AN ENGINE START OF A MOTOR VEHICLE

Abstract

A method for unlocking and enabling an engine start a motor vehicle using a vehicle key involves the motor vehicle having at least one outer node for wireless connection with the vehicle key outside an interior of the motor vehicle, at least one inner node for wireless connection with the vehicle key inside the interior of the motor vehicle, and a control system. The method involves first producing a wireless connection between the vehicle key and the outer node, and then unlocking the motor vehicle. The method then involves forcibly ending the existing wireless connection between the vehicle key and the outer node and then forcibly producing a new wireless connection between the vehicle key and the inner node.

Claims

1-10. (canceled)

11. A method for unlocking a motor vehicle and enabling an engine start of a motor vehicle by a vehicle key of the motor vehicle, the method comprising: first, producing, by a control unit of the motor vehicle, a wireless connection between the vehicle key and at least one outer node of the motor vehicle; second, unlocking, by the control system, the motor vehicle; third, forcibly ending, by the control system, the wireless connection between the vehicle key and the at least one outer node; and fourth, forcibly producing, by the control system, a new wireless connection between the vehicle key and at least one inner node of the motor vehicle, wherein the at least one outer node is configured to establish the wireless connection outside of an interior of the motor vehicle and the at least one inner node is configured to establish the new wireless connection inside the interior of the motor vehicle.

12. The method of claim 11, wherein the at least one outer node comprises a plurality of outer nodes, and wherein the forcibly ending of the wireless connection between the vehicle key and the at least one outer node is performed to deactivate all of the plurality of outer nodes.

13. The method of claim 11, wherein when the new wireless connection is forcibly produced between the vehicle key and the at least one inner node, the vehicle key is exclusively wirelessly connected to the at least one inner node.

14. The method of claim 11, wherein the forcibly produced new wireless connection includes the vehicle key being exclusively wirelessly connected to the at least one inner node after the wireless connection between the vehicle key and the at least one outer node has been forcibly ended.

15. The method of claim 11, wherein the forcibly ending of the existing wireless connection between the vehicle key and the at least one outer node is implemented only after a driver's door of the motor vehicle has been opened.

16. The method of claim 11, wherein the at least one outer node is regulated or controlled by an access system of the control system and the at least one inner node is regulated or controlled by a drive authorization system of the control system.

17. The method of claim 16, wherein a switch of responsibility from the access system to the drive authorization system is performed by the forcibly ending the wireless connection between the vehicle key and the at least one outer node, and by the forcibly producing the new wireless connection between the vehicle key and the at least one inner node of the motor vehicle.

18. The method of claim 16, wherein after the new wireless connection between the vehicle key and the at least one inner node of the motor vehicle has been forcibly produced, the drive authorization system initiates an enabling of the engine start of the motor vehicle.

19. The method of claim 16, wherein after the forcibly producing of the new wireless connection between the vehicle key and the at least one inner node, the drive authorization system enables terminals to generate a permanent or a switched ignition pulse, deactivates an immobilizer comprising a gearbox control device, or deactivates a steering wheel lock, or activates a climate control unit.

20. A motor vehicle, comprising: a vehicle key; a control system; at least one outer node, coupled to the control system, configured to wirelessly connect with the vehicle key outside an interior of the motor vehicle; and at least one inner node, coupled to the control system, configured to wirelessly connect with the vehicle key inside the interior of the motor vehicle, wherein the control system is configured to first, produce a wireless connection between the vehicle key and at least one outer node of the motor vehicle, second, unlock the motor vehicle, third, forcibly end the wireless connection between the vehicle key and the at least one outer node, and fourth, forcibly produce a new wireless connection between the vehicle key and at least one inner node.

Description

BRIEF DESCRIPTION OF THE DRAWING FIGURES

[0017] In the drawings, respectively schematically:

[0018] FIG. 1 shows a purely schematic view of a motor vehicle according to the invention;

[0019] FIG. 2 shows a schematic sequence of a method according to the invention.

DETAILED DESCRIPTION

[0020] FIG. 1 shows a purely schematic view of a motor vehicle 1 according to the invention. The motor vehicle 1 has a control system 2 having an access system 3 and a drive authorization system 4 and a digital vehicle key 5. The motor vehicle 1 additionally has severalhere twoouter nodes 6 and an inner node 7. The outer nodes 6 are assigned to the access system 3, as is indicated by solid arrows. The inner node 7 is assigned to the drive authorization system 4, as is indicated with a further solid arrow.

[0021] The respective outer node 6not shown hereis arranged on the outside of the motor vehicle 1 and can, in particular, connect to the vehicle key 5 if the vehicle key 5 is currently located outside an interior of the motor vehicle 1 or outside the motor vehicle 1. The respective outer node 6 is provided for wireless connection with the vehicle key 5. The wireless connection can, for example, be a BLE-based connection and is here indicated with a dashed arrow. One outer node 6 can, for example, be arranged on a front bumper of the motor vehicle 1, and the other outer node 6 can, for example, be arranged on a rear bumper of the motor vehicle 1.

[0022] The inner node 7not shown hereis arranged inside an interior of the motor vehicle 1 and can, in particular, connect to the vehicle key 5 if the vehicle key 5 is currently located inside the interior of the motor vehicle 1 or inside the motor vehicle 1. The inner node 7 is provided in the same manner for wireless connection with the vehicle key 5. The inner node 7 can, for example, be arranged in the central console of the motor vehicle 1.

[0023] FIG. 2 schematically shows a sequence of a method 8 according to the invention. In the method 8 according to the invention, step A is first carried out. In step A, a wireless connection is produced between the vehicle key 5 and one of the outer nodes 6 of the motor vehicle 1. Step A is also shown in FIG. 1. Subsequently, the motor vehicle 1 is unlocked in step B by the control system 2 or the access system 3 of the control system 2.

[0024] In step C, a driver's door of the motor vehicle 1 is opened. The opening of the driver's door in step C is implemented by the customer and is used in the method 8 as a trigger signal for a next step D. Advantageously, the method 8 can also be carried out without step C. In this case, step D is carried out after step B.

[0025] In step D, the existing wireless connection between the vehicle key 5 and the at least one outer node 6 is forcibly ended via the control system 2. All outer nodes 6 are deactivated in this case. In a following step E, a new wireless connection between the vehicle key 5 and the inner node 7 is forcibly produced.

[0026] Subsequently, in a step F, an engine start of the motor vehicle 1 can be enabled by the control system 2 or the drive authorization system 4. The start of the motor vehicle 1 can then be triggered or initiated by the customer. In addition, the control system 2 or the drive authorization system 4 can deactivate an immobilizer when enabling the engine start of the motor vehicle 1. In addition, a climate control unit or further systems of the motor vehicle 1 can also be activated before or after the step F.

[0027] Although the invention has been illustrated and described in detail by way of preferred embodiments, the invention is not limited by the examples disclosed, and other variations can be derived from these by the person skilled in the art without leaving the scope of the invention. It is therefore clear that there is a plurality of possible variations. It is also clear that embodiments stated by way of example are only really examples that are not to be seen as limiting the scope, application possibilities or configuration of the invention in any way. In fact, the preceding description and the description of the figures enable the person skilled in the art to implement the exemplary embodiments in concrete manner, wherein, with the knowledge of the disclosed inventive concept, the person skilled in the art is able to undertake various changes, for example, with regard to the functioning or arrangement of individual elements stated in an exemplary embodiment without leaving the scope of the invention, which is defined by the claims and their legal equivalents, such as further explanations in the description.