Method for setting up a communication connection between a new vehicle key and a vehicle, and system for carrying out the method

Abstract

The present invention relates to a method (1) for setting up a communication connection between a new vehicle key (6) and a vehicle (4), in which a key connection process involves using a learning application to check whether 1) a user (3) is in the vehicle (4) and a digital permission to connect the new vehicle key (6) to the vehicle (4) has been provided for the user (3) in a backend application (9) of the learning application, 2) the new vehicle key (6) is in the vehicle (4), 3) a vehicle key (5) is in the vehicle (4), wherein a successful check on criteria 1) to 3) is followed by the new vehicle key (6) being communicatively connected to the vehicle (4) in a coupling step. The invention relates in particular to a system (21) configured to carry out the proposed method (1).

Description

[0001] Method for establishing a communication connection between a

[0002] New vehicle key and a vehicle and system for executing the procedure

[0003] The present invention relates to a method for establishing a communication connection between a new vehicle key and a vehicle. The invention particularly relates to a system for implementing the proposed method.

[0004] From DE 102012 012 389 A1 and DE 102016201 601 A1, a device for controlling an access authorization and / or driving authorization for a vehicle and a method for teaching a vehicle key to a vehicle are known.

[0005] The introduction of the digital vehicle key has fundamentally changed the requirements for the conventional physical vehicle key and its role as a necessary component of user / vehicle interaction. Previously, it was common practice to equip vehicles with a single key pair, which the vehicle user received upon vehicle handover. If a key was lost or damaged, a replacement key was ordered, which was then "trained" to the vehicle by an authorized workshop using a diagnostic tester or key programming device as part of a training process. However, a workshop visit represents additional time and financial expenditure for the vehicle user, which is undesirable in terms of customer convenience.

[0006] The object of the invention is therefore to provide an improved or at least a different embodiment of a method for establishing a communication connection between a new vehicle key and a vehicle. In particular, a system is to be provided that can implement the proposed method. In the present invention, this object is achieved in particular by the subject matter of the independent claims. Advantageous embodiments are the subject matter of the dependent claims and the description.

[0007] For this purpose, a method for establishing a communication connection between a new vehicle key and a vehicle is proposed, which could also be referred to as a pairing method. In the method, a mobile communication device, for example a mobile phone (smartphone) or another mobile device, e.g. an iPad, with a storage medium, a programmable vehicle key that is communicatively connected to the vehicle, and a programmable new vehicle key that can be communicatively connected to the vehicle are first provided. The person skilled in the art will be aware that the new vehicle key is not yet connected to the vehicle at this moment, but is merely set up for such a connection. The vehicle key and the new vehicle key can, for example, be designed to be programmable via a wireless key communication interface of an electronic ignition switch of the vehicle.The new vehicle key can be simple in terms of technology and design and can be designed as an NFC card, for example.

[0008] Furthermore, a training application, i.e., a training program, is provided, which comprises a user application provided in the storage medium of the mobile communications device, executable by the user, and a backend application provided in a vehicle backend, executable, and wirelessly connected to the mobile communications device and / or the vehicle. The vehicle backend can be understood in the present case as a server landscape of the vehicle manufacturer, which is expediently configured to provide the training application and, if applicable, other services and functions for the vehicle. Furthermore, it is provided that a digital authorization for connecting the new vehicle key to the vehicle is provided or can be provided to the user in the backend application.Within the framework of the proposed method, it is then provided that a user of the communication device, in particular an authorized seller of the new vehicle key, registers, i.e., logs in, to the training application using the user application, for example, by entering personal data, in particular a user name and password. The user then initiates a key connection process. The key connection process is expediently provided by a vehicle infotainment system of the vehicle and / or initiated by the user using a user communication interface of the vehicle infotainment system. It is essential that, within the framework of the key connection process, a check is carried out, for example, using the training application, to determine whether.

[0009] 1) The user is in the vehicle and a digital authorization to connect the new vehicle key to the vehicle has been provided to the user in the backend application. This step also checks whether the user is logged in to the training application. Successful login allows the user's identity to be confirmed.

[0010] 2) the new vehicle key is in the vehicle, which may be possible via a transponder interface of the vehicle that communicates wirelessly, e.g. inductively, with the mobile communication device,

[0011] 3) the vehicle key is in the vehicle, which may be possible via radio tracking.

[0012] After successful verification of criteria 1) to 3), the procedure provides for the new vehicle key to be communicatively connected to the vehicle in a coupling step.

[0013] The procedure presented here can, for example, be carried out directly upon purchase of the new vehicle key by an authorized user (e.g., a dealer). Advantageously, no additional technical equipment such as a diagnostic tester or key programming device is required, thus eliminating the need for a visit to a workshop, thus improving customer convenience. This allows for a simple and seamless connection of the new vehicle key to the vehicle.

[0014] It is expedient if, within the framework of the proposed method, key programming data for connecting the new vehicle key to the vehicle is generated by the vehicle backend during the coupling step and made available to the vehicle. The vehicle then, in turn, makes the received key programming data available to the new vehicle key, so that, based on the key programming data, a communication connection can be established between the new vehicle key and the vehicle, such that the vehicle can be used with the new vehicle key. The said communication connection can be implemented, for example, through transponder communication. This allows the new vehicle key to be easily and securely connected to the vehicle for communication.

[0015] Furthermore, it is expedient if the key connection process is initialized by the user using a user communication interface of a vehicle infotainment system. It is expedient if the proposed method or key connection process is deactivated, i.e., unavailable, during normal operation of the vehicle. However, the user, for example an authorized seller of the new vehicle key or an authorized workshop, can activate the proposed method or key connection process before executing the proposed method, in particular via a telematics service that communicates with the vehicle. Once the new vehicle key has been successfully connected to the vehicle, the proposed method or key connection process can be deactivated either manually or automatically.

[0016] The user communication interface of the vehicle infotainment system can preferably be implemented by a screen, e.g., a touchscreen. The user communication interface is arranged, for example, in the vehicle interior and is easily accessible and visible to the vehicle user. It is expedient for the user communication interface to display a user-visible icon for the proposed method or for the key connection process, which, when activated, can initialize / start the proposed method or the key connection process. It is understood that the icon is not visible to the user if the execution of the proposed method or the key connection process is deactivated.

[0017] It is expedient, within the framework of the proposed method, for testing the aforementioned criterion 1) using a vehicle infotainment system of the vehicle, to submit an authentication request together with the vehicle's vehicle identification number, the so-called VIN, to a telematics application provided in the vehicle backend. Then, upon receipt of the authentication request, the telematics application generates a random-based authentication code, e.g., a QR code, that has a unique authentication identifier, e.g., a UUID (Universally Unique Identifier). The generated authentication code and the vehicle's vehicle identification number are then assigned to each other by the telematics application and stored as an authentication data packet in a database of the vehicle backend or the telematics application.The telematics application then provides the authentication code to the vehicle's infotainment system. The vehicle's infotainment system has a user communication interface for the user, and the authentication code is provided and displayed at the user communication interface. The displayed authentication code is then provided to the mobile communication device, for example, by a scanning process performed by the user using the mobile communication device. The mobile communication device then provides the authentication code to the user application. The user application provides the authentication code together with a user session identifier to the backend application.The backend application then performs an authentication process, providing the authentication identifier of the authentication code to the telematics application. The telematics application checks whether the provided authentication identifier of the authentication code is valid by searching the telematics application's database for an authentication data packet that has an authentication identifier that matches the authentication identifier provided by the backend application. The authentication identifier of the authentication code is valid if an authentication data packet with a matching authentication identifier is found.If authentication is successful, the telematics application provides the vehicle's vehicle identification number to the backend application, confirming that the user is in the vehicle and that the backend application has provided the user with digital permission to connect the new vehicle key to the vehicle. This process ensures that a user authorized to establish a communication connection between the new vehicle key and the vehicle (e.g., the seller) is actually in the vehicle. It also checks whether the backend application has provided the user with digital permission to connect the new vehicle key to the vehicle. Permission to connect the new vehicle key can, for example, be granted by the vehicle manufacturer.

[0018] It is also expedient if, when checking said criterion 2), a key identifier of the new vehicle key located in the vehicle is read from the new vehicle key using a key communication interface of an electronic ignition switch of the vehicle. The key identifier of the new vehicle key and a vehicle identification number of the vehicle are provided to a telematics application provided in the vehicle backend, and the telematics application provides the key identifier of the new vehicle key together with the vehicle identification number of the vehicle to the backend application. This ensures the presence of the new vehicle key in the vehicle, which is essential for establishing a communication connection between the new vehicle key and the vehicle.

[0019] It is expedient if, within the scope of the proposed method, when checking said criterion 3), a key presence query is transmitted to a telematics application provided in the vehicle backend using a key data management application provided in the vehicle backend, wherein the telematics application sends the key presence query to a key communication interface of an electronic ignition switch of the vehicle, wherein the ignition switch locates and identifies the vehicle key, for example via radio, and generates presence information, wherein the ignition switch provides the presence information with a vehicle identification number of the vehicle to the telematics application, wherein the telematics application provides the presence information with the vehicle identification number of the vehicle to the key data management application, which checks the presence information.This ensures the presence of the vehicle key in the vehicle, which is essential for establishing a communication connection between the new vehicle key and the vehicle.

[0020] Within the scope of the proposed method, it can be provided, in particular, that during the key connection process, the mobile communication device communicates wirelessly with the vehicle via a communication interface of a vehicle infotainment system. This makes communication between the mobile communication device and the vehicle relatively easy to implement.

[0021] It is useful if the new vehicle key and / or the vehicle key communicate wirelessly with the vehicle during the key connection process via a key communication interface of the vehicle's electronic ignition switch. This makes communication between the new vehicle key and / or the vehicle key and the vehicle relatively easy to implement.

[0022] Furthermore, it is expedient for the mobile communication device and / or a vehicle infotainment system of the vehicle to communicate wirelessly with the vehicle backend via a mobile network. This makes communication between the communication device and / or the vehicle infotainment system and the vehicle backend relatively easy to implement.

[0023] According to a further basic idea of ​​the invention, a system for carrying out the method according to the preceding description is provided. The system comprises a vehicle, a vehicle backend assigned to the vehicle, a mobile communication device, for example a mobile phone (smartphone) or another mobile device, e.g. iPad, with a storage medium, a programmable vehicle key that is communicatively connected to the vehicle, and a programmable new vehicle key that can be communicatively connected to the vehicle. The person skilled in the art will appreciate that the new vehicle key is not yet connected to the vehicle at this moment, but is merely configured for such a connection. It further comprises a learning application, iea connection program, which has an executable user application provided in the storage medium of the mobile communication device, as well as an executable backend application provided in the vehicle backend and wirelessly connected to the mobile communication device. Furthermore, it is provided that the vehicle has an electronic ignition switch with a key communication interface for communicating with the vehicle key and the new vehicle key, and a vehicle infotainment system with a user communication interface for communicating with a user. In addition to the backend application, the vehicle backend has a telematics application with a database and a key data management application. This provides an advantageous system by means of which the proposed method can be implemented.

[0024] In summary, the present invention relates to a method for establishing a communication connection between a new vehicle key and a vehicle, in which, as part of a key connection process, a learning application is used to check whether

[0025] 1) a user is in the vehicle and a digital permission to connect the new vehicle key to the vehicle has been provided to the user in a backend application of the learning application,

[0026] 2) the new vehicle key is in the vehicle,

[0027] 3) a vehicle key is located in the vehicle, wherein, after successfully verifying criteria 1) to 3), the new vehicle key is communicatively connected to the vehicle in a coupling step. The invention particularly relates to a system configured to implement the proposed method.

[0028] Further important features and advantages of the invention emerge from the subclaims, from the drawings and from the associated description of the figures based on the drawings.

[0029] It is understood that the features mentioned above and those to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the present invention.

[0030] Preferred embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally identical components.

[0031] Showing schematically:

[0032] Fig. 1 is a schematic flow diagram of the proposed method,

[0033] Fig. 2 a simplified schematic activity diagram of the proposed method and finally

[0034] Fig. 3 shows another simplified schematic activity diagram of the proposed method.

[0035] Fig. 1 shows a method, designated overall by 1, which is designed to establish a communication connection between a new vehicle key 6 and a vehicle 4. It could also be referred to as a pairing method or method for teaching a new vehicle key 6 to a vehicle 4 without departing from the scope of the invention. It is proposed that, within the scope of method 1, a system 21 for carrying out method 1 is first provided with the following peripheral elements: a mobile communication device 2, for example a mobile phone (smartphone) or another mobile device, e.g.iPad, with a storage medium, a programmable vehicle key 5, which is communicatively connected to the vehicle 4, and a programmable new vehicle key 6, which is not communicatively connected to the vehicle 4 but can be communicatively connected to the vehicle 4, a conventional vehicle 4, which has a vehicle interior 4a for a user, an electronic ignition start switch 17 with a key communication interface 18 for communicating with the vehicle key 5 and the new vehicle key 6 and a vehicle infotainment device 13 with, for example,implemented by a screen or a touchscreen, visible and operable from the vehicle interior 4a, for communication with the user 3 and / or the mobile communication device 2, a training application, which could also be referred to as a connection program and which has an executable user application 8 provided in the storage medium of the mobile communication device 2 and an executable backend application 9 provided in a vehicle backend 10 and wirelessly connected to the mobile communication device 2, and the vehicle backend 10 assigned to the vehicle 4, which in the present case is understood in the sense of a server landscape of the vehicle manufacturer of the vehicle 4, wherein in addition to the backend application 9 it has a telematics application 15, a database 16 assigned to the backend application 9 and a key data management application 19.The mobile communication device 2 can communicate wirelessly with the backend application 9 via a mobile network 20. The vehicle infotainment system 13 and the ignition switch 17 can also communicate wirelessly with the telematics application 15 via the mobile network 20. For this purpose, the vehicle 4 has, for example, a telematics control unit 22, which can establish a corresponding connection with the telematics application 15 via the mobile network 20 and which is communicatively connected to the vehicle infotainment system 13 and the ignition switch 17.

[0036] Within the framework of method 1, it is provided that a digital authorization for connecting the new vehicle key 6 to the vehicle 4 is provided in the database 16 in the backend application 9 for the user 3. The database 16 stores the digital authorization, while the user application 8 reads and uses this data. Furthermore, it is provided that the user 3 of the communication device 2 logs in to the training application, for example, by entering personal data, in particular a user name and password, using the user application 8. Then, within the framework of method 1, the user 3 initiates a so-called key connection process, which he can achieve, for example, by pressing an icon displayed by the user communication interface 14, which is displayed there specifically for carrying out method 1. It is essential that, within the framework of the key connection process, the training application checks whether

[0037] 1) The user 3 is in the vehicle 4 or in the vehicle interior 4a of the vehicle 4, and a digital authorization, which is stored in the database 16, for connecting the new vehicle key 6 to the vehicle 4 has been provided to the user 3 in the backend application 9. Furthermore, it is checked whether the user is logged in to the training application, which, if the login was successful, enables confirmation of the user's identity.

[0038] 2) the new vehicle key 6 is in the vehicle 4 or in the vehicle interior 4a of the vehicle 4,

[0039] 3) the vehicle key 5 is located in the vehicle 4, preferably in the vehicle interior 4a.

[0040] After successful testing of criteria 1) to 3), the new vehicle key 6 is communicatively connected to the vehicle 4 in a so-called coupling step.

[0041] When checking criterion 1), an authentication request is first sent from the vehicle infotainment system 13, along with a vehicle identification number of the vehicle 4, to the telematics application 15 provided in the vehicle backend 9 (see arrow A in Fig. 1). Upon receipt of the authentication request, the telematics application 15 generates a random-based authentication code, e.g., a QR code, which has a unique authentication identifier, e.g., a UUID (Universally Unique Identifier). The generated authentication code and the vehicle identification number of the vehicle 4 are then associated with each other using the telematics application 15 and stored as an authentication data packet in the telematics application 15. Furthermore, the telematics application 15 provides the authentication code to the vehicle infotainment system 13 of the vehicle 4 (see arrow B in Fig.1, which displays the authentication code via the user communication interface 14 in the form of a QR code readable by the mobile communication device 2.

[0042] The displayed authentication code (QR code) is then provided to the mobile communication device 2 by a scanning process performed using the mobile communication device 2. The communication device 2 then provides the authentication code to the user application 8, so that the user application 8 can provide the authentication code together with a user session identifier to the backend application 9 (see arrow C in Fig. 1). The backend application 9 then provides the authentication identifier of the authentication code to the telematics application 15 (see arrow D in Fig. 1).The telematics application 15 then checks whether the provided authentication identifier of the authentication code is valid by searching for an authentication data packet in the telematics application 15 that has an authentication identifier that matches the authentication identifier provided by the backend application 9. The authentication identifier of the authentication code is valid only if an authentication data packet with a matching authentication identifier has been found. If authentication is successful, the telematics application 15 provides the vehicle identification number of the vehicle 4 to the backend application 9, see arrow E in Fig. 1.This confirms that the user 3 is in the vehicle 4 and that a digital permission to connect the new vehicle key 6 to the vehicle 4 has been provided for the user 3 in the backend application 9.

[0043] When testing criterion 2), the key communication interface

[0044] 18 of the electronic ignition switch 17, a key identifier of the new vehicle key 6 is read from the new vehicle key 6 located in the vehicle 4. In this case, it is provided that the key identifier of the new vehicle key 6 and the vehicle identification number of the vehicle 4 are provided to the telematics application 15, see arrow F in Fig. 1. The telematics application 15 provides the key identifier of the new vehicle key 6 together with the vehicle identification number of the vehicle 4 to the backend application 9, see arrow G in Fig. 1. This ensures the presence of the new vehicle key 6 in the vehicle 4, which is absolutely necessary for establishing a communication connection between the new vehicle key 6 and the vehicle 4.

[0045] When examining criterion 3), the key data management application

[0046] 19 transmits a key presence query to the telematics application 15, see arrow H in Fig. 1. The telematics application 15 sends the key presence query to the key communication interface 18 of the electronic ignition switch 17, see arrow I in Fig. 1. The ignition switch 17 then locates the vehicle key 5, e.g. via radio, whereby the vehicle key 5 is identified and presence information is generated. The presence information is then provided by the ignition switch 17 together with the vehicle identification number of the vehicle 4 to the telematics application 15, see arrow J in Fig. 1. The telematics application 15 provides the presence information with the vehicle identification number of the vehicle 4 to the key data management application 19, see arrow K in Fig. 1, which in turn checks the presence information.This ensures the presence of the vehicle key 5 in the vehicle 4.

[0047] In the aforementioned coupling step, in which the new vehicle key 6 is communicatively connected to the vehicle 4, it is provided that the vehicle backend 10 generates key programming data for connecting the new vehicle key 6 to the vehicle 4 and makes it available to the vehicle 4. For this purpose, it is specifically provided that the backend application 9 generates a key programming request and sends it to the key data management application 19, see arrow L in Fig. 1. If the check of criterion 3) ensures that the vehicle key 5 is present in the vehicle 4, the key data management application 19 generates key programming data for the new vehicle key 6 and sends it to the telematics application 15, see arrow M in Fig. 1. The telematics application 15, in turn, sends the key programming data via the telematics control unit 22 to the key communication interface 18 of the ignition switch 17, see arrow N in Fig.1. The ignition switch 17 then sends the key programming data to the new vehicle key 6, where, based on the key programming data, a communication connection can be established between the new vehicle key 6 and the vehicle 4, so that the vehicle 4 can be used by the user 3 using the new vehicle key 6. This allows the new vehicle key 6 to be easily and securely connected to the vehicle 4 for communication.

[0048] Fig. 2 shows a simplified schematic activity diagram of the proposed method 1, wherein only the essential method steps of the method 1, namely the initiation of the method 1 (box O), the testing of the criteria 1) to 3) (box P) and the coupling step (box Q) are shown.

[0049] Fig. 3 shows a further simplified schematic activity diagram of the proposed method 1 , in which the testing of criteria 1) to 3) is represented by boxes R to T.

Claims

Patent claims 1. Method (1) for establishing a communication connection between a new vehicle key (6) and a vehicle (4), in which - a mobile communication device (2) with a storage medium, a programmable vehicle key (5) which is communicatively connected to the vehicle (4), and a programmable new vehicle key (6) which can be communicatively connected to the vehicle are provided, - wherein a training application is provided which comprises an executable user application (8) provided in the storage medium of the mobile communication device (2) and an executable backend application (9) provided in a vehicle backend (10) and wirelessly connected to the mobile communication device (2), - wherein in the backend application (9) a digital permission to connect the new vehicle key (6) to the vehicle (4) is provided or can be provided to the user (3), - wherein a user (3) of the communication device (2) logs on to the learning application and initiates a key connection process, characterized in that - as part of the key connection process, the learning application checks whether 1) the user (3) is in the vehicle (4) and a digital permission to connect the new vehicle key (6) to the vehicle (4) has been provided to the user (3) in the backend application (9), whereby it is further checked whether the user (3) is logged in to the learning application, 2) the new vehicle key (6) is in the vehicle (4), 3) the vehicle key (5) is in the vehicle (4), - wherein after successful testing of criteria 1) to 3), the new vehicle key (6) is communicatively connected to the vehicle (4) in a coupling step.

2. Method (1) according to claim 1, characterized in that - in the coupling step, key programming data for connecting the new vehicle key (6) to the vehicle (4) are generated by the vehicle backend (10) and made available to the vehicle (4), - wherein the vehicle (4) provides the key programming data to the new vehicle key (6), and - wherein a communication connection is established between the new vehicle key (6) and the vehicle (4) on the basis of the key programming data, so that the vehicle (4) can be used by the user (3) using the new vehicle key (6).

3. Method (1) according to claim 1 or 2, characterized in that - the key connection process is initialized by the user (3) using a user communication interface (14) of a vehicle infotainment device (13) of the vehicle (4).

4. Method (1) according to one of the preceding claims, characterized in that - when checking criterion 1), an authentication request is made using a vehicle infotainment device (13) of the vehicle (4) together with a vehicle identification number of the vehicle (4) to a telematics application (15) provided in the vehicle backend (9), - wherein the telematics application (15) generates a random-based authentication code having a unique authentication identifier upon receipt of the authentication request, - wherein the generated authentication code and the vehicle identification number of the vehicle (4) are assigned to each other by the telematics application (15) and stored as an authentication data packet in the telematics application (15), - wherein the telematics application (15) provides the authentication code to the vehicle infotainment device (13) of the vehicle (4), - wherein the vehicle infotainment device (13) of the vehicle (4) has a user communication interface (14) for the user, wherein the authentication code is provided and displayed on the user communication interface (14), - wherein the displayed authentication code is provided to the mobile communication device (2) which provides the authentication code to the user application (8), - wherein the user application (8) provides the authentication code together with an identifier of a user session to the backend application (9), - wherein the backend application (9) carries out a request in which the authentication identifier of the authentication code is provided to the telematics application (15), wherein the telematics application (15) checks whether the provided authentication identifier of the authentication code is valid by searching for an authentication data packet in a database (16) of the vehicle backend (9) for the authentication identifier of the authentication code provided by the backend application (9), which has an authentication identifier that matches the authentication identifier provided by the backend application (9), wherein the authentication identifier of the authentication code is valid if an authentication data packet with a matching authentication identifier is found, - wherein, upon successful authentication, the telematics application (15) provides the vehicle identification number of the vehicle (4) to the backend application (9) to confirm that the user (3) is in the vehicle (4) and a digital permission to connect the new vehicle key (6) to the vehicle (4) has been provided to the user (3) in the backend application (9).

5. Method (1) according to one of the preceding claims, characterized in that - when testing criterion 2), a key identifier () of the new vehicle key (6) located in the vehicle (4) is read from the new vehicle key (6) using a key communication interface (18) of an electronic ignition switch (17) of the vehicle (4), - wherein the key identifier of the new vehicle key (6) and a vehicle identification number of the vehicle (4) are provided to a telematics application (15) provided in the vehicle backend (10), - wherein the telematics application (15) provides the key identifier of the new vehicle key (6) together with the vehicle identification number of the vehicle (4) to the backend application (9).

6. Method (1) according to one of the preceding claims, characterized in that - when checking criterion 3), a key presence query is transmitted to a telematics application (15) provided in the vehicle backend (10) using a key data management application (19) provided in the vehicle backend (10), - wherein the telematics application (15) transmits the key presence query to a key communication interface (18) of an electronic ignition switch (17) of the vehicle (4), - wherein the ignition switch (17) identifies the vehicle key (5) and generates presence information, - wherein the ignition start switch (17) provides the presence information with a vehicle identification number of the vehicle (4) to the telematics application (15), - wherein the telematics application (15) provides the presence information with the vehicle identification number of the vehicle (4) to the key data management application (19), which checks the presence information.

7. Method (1) according to one of the preceding claims, characterized in that - as part of the key connection process, the mobile communication device (2) communicates wirelessly with the vehicle (4) via a user communication interface (14) of a vehicle infotainment device (13) of the vehicle (4).

8. Method (1) according to one of the preceding claims, characterized in that - the new vehicle key (6) and / or the vehicle key (5) as part of the key connection process via a key communication interface (18) of an electronic ignition start switch (17) of the vehicle (4) communicates wirelessly with the vehicle (4).

9. Method (1) according to one of the preceding claims, characterized in that - the mobile communication device (2) and / or a vehicle infotainment device (13) of the vehicle (4) communicates wirelessly with the vehicle backend (10) via a mobile radio network (20).

10. System (21) for carrying out the method (1) according to one of the preceding claims, - a vehicle (4), a vehicle backend (10) assigned to the vehicle (4), a mobile communication device (2) with a storage medium, a programmable vehicle key (5) which is communicatively connected to the vehicle (4), and a programmable new vehicle key (6) which can be communicatively connected to the vehicle (4), - a training application comprising an executable user application (8) provided in the storage medium of the mobile communication device (2) and an executable backend application (9) provided in the vehicle backend (10) and wirelessly connected to the mobile communication device (2), - wherein the vehicle (4) has an electronic ignition switch (17) with a key communication interface (18) for communication with the vehicle key (5) and the new vehicle key (6) and a vehicle infotainment device (13) with a user communication interface (14) for communication with a user (3), - wherein the vehicle backend (10) comprises, in addition to the backend application (9), a telematics application (15), a database (16) associated with the backend application (9), and a key data management application (19).

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