Method for establishing communication connection between new vehicle key and vehicle and system for carrying out method

Abstract

The invention relates to a method (1) for establishing a communication connection between a new vehicle key (6) and a vehicle (4), in which method during a key connection process, a teaching application is used to check: 1) whether a user (3) is located in the vehicle (4) and whether the user (3) is provided with digital rights to connect the new vehicle key (6) to the vehicle (4) in a back-end application (9); 2) determining whether the new vehicle key (6) is located in the vehicle (4); the conditions 1) to 3) are determined as to whether the vehicle key (5) is located in the vehicle (4), and wherein, after successful verification of the conditions 1) to 3), a new vehicle key (6) is communicatively connected to the vehicle (4) in a coupling step. The invention relates in particular to a system (21) adapted for carrying out the proposed method (1).

Description

Technical Field

[0001] This invention relates to a method for establishing a communication connection between a new vehicle key and a vehicle. In particular, this invention relates to a system for performing the proposed method. Background Technology

[0002] A device for controlling access rights and / or driving rights of a vehicle or a method for teaching a vehicle key to a vehicle is known from DE 10 2012 012 389 A1 and DE 10 2016 201 601 A1.

[0003] The introduction of digital vehicle keys has fundamentally changed the requirements for traditional physical vehicle keys and their role as an essential part of user / vehicle interaction. Previously, the common practice was to equip each vehicle with a separate key pair, which the vehicle owner received upon delivery. If the key was lost or damaged, a replacement key was ordered, and then an authorized repair shop would "teach" the key to the vehicle during a teaching process using a diagnostic tester or key programmer—essentially, establishing a communication connection. However, going to a repair shop in person meant additional time and money for the vehicle owner, which was undesirable in terms of customer comfort. Summary of the Invention

[0004] Therefore, the object of the present invention is to provide an improved or at least different implementation of a method for establishing a communication connection between a new vehicle key and a vehicle. In particular, a system capable of performing the proposed method should be provided.

[0005] In this invention, this objective is achieved particularly through the subject matter of the independent claims. Advantageous embodiments are the subject matter of the dependent claims and the description.

[0006] To this end, a method for establishing a communication connection between a new vehicle key and a vehicle, also known as a pairing method, is proposed. In this method, the following are provided: a mobile communication device, such as a mobile phone (smartphone) or another mobile device, such as an iPad, having a storage medium; a programmable vehicle key communicatively connected to the vehicle; and a programmable new vehicle key capable of communicatively connecting to the vehicle. It is clear to those skilled in the art that the new vehicle key is not currently connected to the vehicle, but is adapted only for such a connection. The vehicle key and the new vehicle key can be designed to be programmed, for example, via a wireless key communication interface through the vehicle's electronic ignition switch. The new vehicle key can be technically and designally simple, for example, implemented as an NFC card. Furthermore, a teaching application, i.e., a teaching program, is provided, which has a user application executable by a user and provided in the storage medium of the mobile communication device, and a backend application executable and wirelessly connected to the mobile communication device and / or the vehicle, provided in the vehicle's backend. In this case, the vehicle backend can be understood as the vehicle manufacturer's server environment, which is suitably adapted to provide the teaching application and, where appropriate, other services and functions for the vehicle. Furthermore, the backend application is configured to provide or enable the user with digital permissions to connect the new vehicle key to the vehicle. Within the scope of the proposed method, it is configured here that the user of the communication device, particularly the authorized salesperson of the new vehicle key, logs into the teaching application via a user application, for example, by entering personal data, specifically a username and password. The user then initiates the key connection process. The key connection process is suitably provided by the vehicle's infotainment system and / or initiated by the user via the user communication interface of the infotainment system. Importantly, during the key connection process, for example, the following is checked via the teaching application:

[0007] 1) Check if the user is inside the vehicle and if the backend application has granted the user digital permissions to connect the new vehicle key to the vehicle. This step also checks if the user is logged into the teaching application. The user's identity can be verified through successful login.

[0008] 2) Whether the new vehicle key is located inside the vehicle, which is achieved, where appropriate, via the vehicle's transponder interface for wireless communication with mobile communication devices, such as inductive communication.

[0009] 3) Whether the vehicle key is inside the vehicle, which is determined by radio location when appropriate.

[0010] After successfully checking conditions 1) to 3), within the scope of this method, it is set to connect the new vehicle key to the vehicle in a communicative manner during the coupling step.

[0011] The method presented here can be performed directly by an authorized user (e.g., a salesperson) when purchasing a new vehicle key. Advantageously, this eliminates the need for additional technical equipment such as diagnostic testers or key programmers, thus reducing the need for a trip to a repair shop and improving customer comfort. Overall, it allows for a simple and smooth connection of the new vehicle key to the vehicle.

[0012] Suitablely, within the scope of the proposed method, in the coupling step, key programming data for connecting the new vehicle key to the vehicle is generated by the vehicle's backend and provided to the vehicle. The vehicle itself then provides the received key programming data to the new vehicle key, thereby enabling a communication connection to be established between the new vehicle key and the vehicle subsequently using the key programming data, making the vehicle usable with the new vehicle key. This communication connection can be implemented, for example, via transponder communication. This allows for a simple and secure communication connection between the new vehicle key and the vehicle.

[0013] Furthermore, it is preferable that the key connection process is initialized by the user through the user communication interface of the vehicle's infotainment system. It is preferable that the proposed method or key connection process is disabled, i.e., unavailable, during normal vehicle operation. However, the user, such as an authorized salesperson or authorized service provider of the new vehicle key, may activate the proposed method or key connection process before performing the proposed method, particularly via a telematics service communicating with the vehicle. After the new vehicle key is connected to the vehicle, the proposed method or key connection process may be manually or automatically deactivated.

[0014] The user communication interface of a vehicle infotainment device can preferably be implemented via a screen, such as a touchscreen. The user communication interface is located, for example, inside the vehicle, allowing convenient access and viewing by the vehicle user. Preferably, the user communication interface of the proposed method or key connection process displays a user-visible icon through which the proposed method or key connection process can be initialized / started. It is known that if the proposed method or key connection process is disabled, this icon is not visible to the user.

[0015] Suitablely, within the scope of the proposed method, when checking condition 1), the authentication request, along with the vehicle identification number (VIN), is provided to a telematics application provided in the vehicle's backend via the vehicle's infotainment system. Here, the telematics application generates a random authentication code, such as a QR code, upon receiving the authentication request. This authentication code has a unique authentication identifier, such as a UUID (Universally Unique Identifier). The generated authentication code and the vehicle's VIN are then associated with each other by the telematics application, and stored as an authentication data packet in the vehicle's backend or in the telematics application's database. Subsequently, the telematics application provides the authentication code to the vehicle's infotainment system, which has a user communication interface for the user, and displays the authentication code on the user communication interface. Then, for example, through a scanning process performed by the user using a mobile communication device, the displayed authentication code is provided to the mobile communication device, which in turn provides the authentication code to the user application, which provides the authentication code along with an identifier for the user session to the backend application. The system is then configured so that the backend application performs authentication, providing an authentication identifier of the authentication code to the telematics application. The telematics application checks the validity of the provided authentication identifier by searching its database for an authentication packet with the same authentication identifier as the one provided by the backend application. If an authentication packet with the same identifier is found, the authentication identifier of the authentication code is valid. If authentication is successful, the telematics application provides the vehicle identification number (VIN) to the backend application, thereby confirming that the user is inside the vehicle and that the backend application has granted the user digital permission to connect the new vehicle key to the vehicle. This process ensures that the user authorized to establish a communication connection between the new vehicle key and the vehicle (e.g., a salesperson) is actually inside the vehicle. Furthermore, it checks whether the backend application has granted the user digital permission to connect the new vehicle key to the vehicle. This permission to connect the new vehicle key may, for example, be issued by the vehicle manufacturer.

[0016] Furthermore, it is suitable that, during inspection condition 2), the key identifier of the new vehicle key is read from the new vehicle key located inside the vehicle via the key communication interface of the vehicle's electronic ignition switch. This key identifier and the vehicle identification number (VIN) are provided to a telematics application located in the vehicle's backend, and the telematics application provides the key identifier along with the VIN to the backend application. This ensures the presence of the new vehicle key within the vehicle, which is absolutely necessary for establishing a communication connection between the new vehicle key and the vehicle.

[0017] Suitablely, within the scope of the proposed method, when checking condition 3), a key presence request is transmitted to a telematics application provided in the vehicle's backend via a key data management application. This telematics application sends the key presence request to the key communication interface of the vehicle's electronic ignition switch. The ignition switch, for example, locates and identifies the vehicle key via radio and generates presence information. The ignition switch provides the presence information, along with the vehicle's vehicle identification number (VIN), to the telematics application, which in turn provides the presence information, along with the VIN, to the key data management application, which checks the presence information. This ensures the presence of the vehicle key within the vehicle, which is absolutely necessary for establishing a communication connection between the new vehicle key and the vehicle.

[0018] Within the scope of the proposed method, it can be specifically configured such that, during the key connection process, the mobile communication device wirelessly communicates with the vehicle via the communication interface of the vehicle's infotainment system. This allows for relatively simple communication between the mobile communication device and the vehicle.

[0019] Ideally, the new vehicle key and / or the vehicle key wirelessly communicates with the vehicle via the key communication interface of the electronic ignition switch during key connection. This allows for relatively simple communication between the new vehicle key and / or the vehicle key and the vehicle.

[0020] Furthermore, it is suitable for mobile communication devices and / or vehicle infotainment devices to wirelessly communicate with the vehicle's rear end via a mobile network. This enables relatively simple communication between the communication devices and / or vehicle infotainment devices and the vehicle's rear end.

[0021] According to another fundamental idea of ​​the present invention, a system for performing the method described above is provided. The system comprises: a vehicle; a vehicle backend associated with the vehicle; a mobile communication device, such as a mobile phone (smartphone) or another mobile device, such as an iPad, having a storage medium; a programmable vehicle key communicatively connected to the vehicle; and a programmable new vehicle key communicatively connected to the vehicle. It will be clear to those skilled in the art that the new vehicle key is not currently connected to the vehicle, but is adapted only for such a connection. The system also comprises a teaching application, i.e., a connection program, which has an executable user application provided in the storage medium of the mobile communication device, and an executable backend application provided in the vehicle backend and wirelessly connected to the mobile communication device. Furthermore, the vehicle is configured to have: an electronic ignition start switch having a key communication interface for communicating with the vehicle key and the new vehicle key; and a vehicle infotainment device having a user communication interface for communicating with a user, and the vehicle backend, in addition to the backend application, also has a telematics application with a database and a key data management application. Thus, an advantageous system is proposed by which the proposed method can be implemented.

[0022] In summary, the present invention suitably relates to a method for establishing a communication connection between a new vehicle key and a vehicle, wherein during the key connection process, a teaching application is used to check:

[0023] 1) Whether the user is inside the vehicle, and whether the backend application of the teaching application has granted the user digital permissions to connect the new vehicle key to the vehicle.

[0024] 2) Is the new vehicle key inside the vehicle?

[0025] 3) Is the vehicle key inside the vehicle?

[0026] After successfully checking conditions 1) to 3), the new vehicle key is communicatively connected to the vehicle in the coupling step. This invention particularly relates to a system adapted to perform the proposed method.

[0027] Other important features and advantages of the invention are described in the dependent claims, the drawings, and related figures based on the drawings.

[0028] It should be understood that the above features and the features to be explained below can be used not only in their respective specified combinations, but also in other combinations or individually, without departing from the scope of the invention. Attached Figure Description

[0029] Preferred embodiments of the present invention are shown in the accompanying drawings and described in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally identical components.

[0030] Here:

[0031] Figure 1 A schematic flowchart of the proposed method is shown.

[0032] Figure 2 A simplified activity diagram of the proposed method is shown, and finally...

[0033] Figure 3 Another simplified schematic diagram of the proposed method is shown. Detailed Implementation

[0034] Figure 1 A method, generally marked with 1, is shown, adapted for establishing a communication connection between a new vehicle key 6 and a vehicle 4. It may also be referred to as a pairing method or a method for teaching the new vehicle key 6 to the vehicle 4, without departing from the scope of the invention. The invention proposes, within the scope of method 1, first providing a system 21 for implementing method 1, having the following peripheral elements:

[0035] Mobile communication device 2, such as a mobile phone (smartphone) or another mobile device, such as an iPad, having a storage medium; a programmable vehicle key 5 connected to vehicle 4 in a communicative manner; and a new programmable vehicle key 6 not connected to vehicle 4 in a communicative manner but capable of being connected to vehicle 4 in a communicative manner.

[0036] A conventional vehicle 4 includes: a vehicle interior 4a for a user; an electronic ignition start switch 17 having a key communication interface 18 for communicating with a vehicle key 5 and a new vehicle key 6; and a vehicle infotainment system 13 having a user communication interface 14, for example, implemented via a screen or touchscreen, viewable and operable from the vehicle interior 4a, for communicating with a user 3 and / or a mobile communication device 2.

[0037] The teaching application, also known as the connection program, 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 the vehicle rear end 10 and connected to the mobile communication device 2 wirelessly.

[0038] The vehicle backend 10 associated with vehicle 4, which is understood in this case as the server environment of the vehicle manufacturer of vehicle 4, includes, in addition to backend application 9, a telematics application 15, a database 16 associated with backend application 9, and a key data management application 19. Mobile communication device 2 can wirelessly communicate with backend application 9 via mobile network 20. Vehicle infotainment device 13 and ignition switch 17 can also wirelessly communicate with telematics application 15 via mobile network 20. For this purpose, vehicle 4 exemplaryly includes a telematics control unit 22, which can form a corresponding connection with telematics application 15 via mobile network 20 and communicatively connect with vehicle infotainment device 13 and ignition switch 17.

[0039] Within the scope of Method 1, the backend application 9 provides user 3 with digital permissions in database 16 to connect the new vehicle key 6 to vehicle 4. Database 16 stores the digital permissions, which are read and used by the user application 8. Furthermore, user 3 of communication device 2 logs into the teaching application via user application 8, for example, by entering personal data, specifically a username and password. Then, within the scope of Method 1, user 3 initiates the so-called key connection process, which can be achieved, for example, by clicking an icon displayed by the user communication interface 14, specifically shown there to execute Method 1.

[0040] Importantly, during the key connection process, the following should be checked using a teaching application:

[0041] 1) Whether user 3 is inside vehicle 4 or inside vehicle 4a of vehicle 4, and whether the backend application 9 has granted user 3 digital permission to connect the new vehicle key 6 to vehicle 4, which is stored in database 16. Additionally, it checks whether the user is logged into the teaching application, making it possible to verify the user's identity upon successful login.

[0042] 2) Is the new vehicle key 6 located inside vehicle 4 or inside vehicle 4a of vehicle 4?

[0043] 3) Whether the vehicle key 5 is located inside the vehicle 4, preferably inside the vehicle interior 4a.

[0044] After successfully checking conditions 1) to 3), it is set to connect the new vehicle key 6 to the vehicle 4 in a communicative manner during the so-called coupling step.

[0045] When checking condition 1), the authentication request, along with the vehicle identification number of vehicle 4, is first provided to the telematics application 15 provided in the vehicle's backend 9 via the vehicle infotainment device 13. See [link to relevant documentation]. Figure 1 Arrow A in the diagram. Upon receiving an authentication request, the telematics application 15 generates a random authentication code, such as a QR code, which has a unique authentication identifier, such as a UUID (Universally Unique Identifier). The generated authentication code is then associated with the vehicle identification number (VIN) of vehicle 4 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 vehicle 4, see [link to documentation]. Figure 1 Arrow B indicates that the vehicle infotainment system displays the authentication code as a QR code readable by the mobile communication device 2 via the user communication interface 14.

[0046] Next, the displayed authentication code (QR code) is provided to mobile communication device 2 through a scanning process performed by mobile communication device 2. Then, communication device 2 provides the authentication code to user application 8, which can then provide the authentication code along with the user session identifier to backend application 9, see [link to relevant documentation]. Figure 1 Arrow C in the diagram. Then, backend application 9 provides the authentication identifier of the authentication code to telematics application 15, see [link to documentation]. Figure 1 Arrow D in the diagram. Then, the telematics application 15 checks whether the authentication identifier of the provided authentication code is valid. Specifically, the telematics application 15 searches for an authentication data packet in itself that has an authentication identifier consistent with 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 consistent authentication identifier is found. If authentication is successful, the telematics application 15 provides the vehicle identification number of vehicle 4 to the backend application 9, see [link to relevant documentation]. Figure 1 Arrow E in the diagram confirms that user 3 is inside vehicle 4, and that the backend application 9 grants user 3 digital permission to connect the new vehicle key 6 to vehicle 4.

[0047] When checking condition 2), the key identifier of the new vehicle key 6 is read from the new vehicle key 6 located inside the vehicle 4 via the key communication interface 18 of the electronic ignition start switch 17. In this case, 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 [link to relevant documentation]. Figure 1 Arrow F in the diagram. The telematics application 15 here provides the key identifier of the new vehicle key 6 along with the vehicle identification number of the vehicle 4 to the backend application 9, see [link to application 9]. Figure 1Arrow G in the diagram. This ensures the presence of the new vehicle key 6 within vehicle 4, which is absolutely necessary for establishing a communication connection between the new vehicle key 6 and vehicle 4.

[0048] When checking condition 3), the key presence request is transmitted to the remote information processing application 15 via the key data management application 19, see [link to relevant documentation]. Figure 1 Arrow H in the diagram. Here, the telematics application 15 sends a key presence request to the key communication interface 18 of the electronic ignition start switch 17, see [link to relevant documentation]. Figure 1 Arrow I in the diagram. Then, the ignition switch 17 positions the vehicle key 5, for example via radio, whereby the vehicle key 5 is identified and an presence message is generated. Subsequently, the presence message, along with the vehicle identification number of vehicle 4, is provided to the telematics application 15 via the ignition switch 17, see [link to application]. Figure 1 Arrow J in the diagram. The telematics application 15 provides the presence information of the vehicle identification number of vehicle 4 to the key data management application 19, see [link to application 19]. Figure 1 The arrow K in the diagram indicates that the key data management application, in turn, checks for this presence information. This ensures that the vehicle key 5 is present in the vehicle 4.

[0049] In the coupling step of connecting the new vehicle key 6 to the vehicle 4 in a communicative manner, the vehicle backend 10 generates key programming data for connecting the new vehicle key 6 to the vehicle 4 and provides it to the vehicle 4. Specifically, the backend application 9 generates a key programming request and sends it to the key data management application 19, see [link to relevant documentation]. Figure 1 Arrow L in the diagram. If the check in condition 3) ensures that vehicle key 5 exists in vehicle 4, then key data management application 19 generates key programming data for the new vehicle key 6 and sends it to telematics application 15, see [link to application 15]. Figure 1 Arrow M in the diagram. The telematics application 15 then sends the key programming data to the key communication interface 18 of the ignition start switch 17 via the telematics control unit 22. See [link / reference]. Figure 1 Arrow N in the diagram. Then, the ignition switch 17 sends key programming data to the new vehicle key 6, where a communication connection can be established between the new vehicle key 6 and the vehicle 4 using the key programming data, thereby making the vehicle 4 available to the user 3 via the new vehicle key 6. This allows for a simple and secure communication connection between the new vehicle key 6 and the vehicle 4.

[0050] Figure 2 A simplified activity diagram of the proposed method 1 is shown, which only shows the basic method steps of method 1, namely the triggering of method 1 (box O), the checking of conditions 1) to 3) (box P) and the coupling step (box Q).

[0051] Figure 3 A further simplified activity diagram of the proposed method 1 is shown, in which the checks of conditions 1) to 3) are represented by boxes R to T.

Claims

1. A method (1) for establishing a communication connection between a new vehicle key (6) and a vehicle (4), wherein, - Provides a mobile communication device (2) with a storage medium, a programmable vehicle key (5) that is connected to the vehicle (4) in a communication manner, and a programmable new vehicle key (6) that is connected to the vehicle in a communication manner. -The teaching application includes a user application (8) that can be executed and is provided in the storage medium of the mobile communication device (2), and a back-end application (9) that can be executed and is wirelessly connected to the mobile communication device (2) and is provided in the vehicle back-end (10). -In the backend application (9), the user (3) is provided with or able to be provided with digital permissions to connect the new vehicle key (6) to the vehicle (4). -The user (3) of the communication device (2) logs into the teaching application and initiates the key connection process. Its features are, - Checked using the teaching application during the key connection process: 1) Whether the user (3) is inside the vehicle (4), and whether the user (3) has been granted digital permission in the backend application (9) to connect the new vehicle key (6) to the vehicle (4), wherein the user (3) is further checked to see if he / she is logged into the teaching application. 2) Whether the new vehicle key (6) is located inside the vehicle (4), 3) Whether the vehicle key (5) is located inside the vehicle (4); -In which, after successfully checking conditions 1) to 3), the new vehicle key (6) is connected to the vehicle (4) in a communication manner in the coupling step.

2. The method (1) according to claim 1. Its features are, - In the coupling step, key programming data for connecting the new vehicle key (6) to the vehicle (4) is generated by the vehicle rear end (10) and provided to the vehicle (4). - wherein the vehicle (4) provides the key programming data to the new vehicle key (6), and -A communication connection is established between the new vehicle key (6) and the vehicle (4) by means of the key programming data, thereby making the vehicle (4) available to the user (3) by means of the new vehicle key (6).

3. The method (1) according to claim 1 or 2. Its features are, - The user (3) initiates the key connection process through the user communication interface (14) of the vehicle infotainment device (13) of the vehicle (4).

4. The method (1) according to any one of the preceding claims. Its features are, - When checking condition 1), the authentication request, together with the vehicle identification number of the vehicle (4), is provided to the telematics application (15) provided in the vehicle backend (9) by means of the vehicle infotainment device (13) of the vehicle (4). -The remote information processing application (15) generates a random authentication code upon receiving the authentication request, the authentication code having a unique authentication identifier. -The generated authentication code and the vehicle identification number of the vehicle (4) are associated with 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). -The vehicle infotainment system (13) of the vehicle (4) has a user communication interface (14) for the user, wherein the authentication code is provided to and displayed on the user communication interface (14). -The authentication code is provided to the mobile communication device (2), and the mobile communication device provides the authentication code to the user application (8). - wherein the user application (8) provides the authentication code together with the identifier of the user session to the backend application (9). -The backend application (9) executes a request, wherein the authentication identifier of the authentication code is provided to the telematics application (15), wherein the telematics application (15) checks whether the authentication identifier of the provided authentication code is valid, specifically by searching for an authentication data packet in the database (16) of the vehicle backend (9) for the authentication identifier of the authentication code provided by the backend application (9), the authentication data packet having an authentication identifier consistent with the authentication identifier provided by the backend application (9), wherein if an authentication data packet with a consistent authentication identifier is found, then the authentication identifier of the authentication code is valid. - Wherein, if authentication is successful, 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 that the backend application (9) has granted the user (3) digital permission to connect the new vehicle key (6) to the vehicle (4).

5. The method (1) according to any one of the preceding claims. Its features are, - When checking condition 2), the key identifier of the new vehicle key (6) is read from the new vehicle key (6) located in the vehicle (4) by means of the key communication interface (18) of the electronic ignition start switch (17) of the vehicle (4). -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) provided in the vehicle backend (10). -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. The method (1) according to any one of the preceding claims. Its features are, - When checking condition 3), the key presence request is transmitted to the telematics application (15) provided in the vehicle backend (10) by means of the key data management application (19) provided in the vehicle backend (10). -The remote information processing application (15) sends the key presence request to the key communication interface (18) of the electronic ignition start switch (17) of the vehicle (4). -The ignition start switch (17) therein recognizes the vehicle key (5) and generates presence information. -The ignition start switch (17) therein provides the presence information along with the vehicle identification number of the vehicle (4) to the telematics application (15). -The telematics application (15) provides the presence information along with the vehicle identification number of the vehicle (4) to the key data management application (19), which checks the presence information.

7. The method (1) according to any one of the preceding claims. Its features are, - During the key connection process, the mobile communication device (2) wirelessly communicates with the vehicle (4) via the user communication interface (14) of the vehicle infotainment device (13) of the vehicle (4).

8. The method (1) according to any one of the preceding claims. Its features are, - The new vehicle key (6) and / or the vehicle key (5) wirelessly communicate with the vehicle (4) via the key communication interface (18) of the electronic ignition start switch (17) of the vehicle (4) during the key connection process.

9. The method (1) according to any one of the preceding claims. Its features are, The mobile communication device (2) and / or the vehicle infotainment device (13) of the vehicle (4) communicate wirelessly with the rear end of the vehicle (10) via the mobile network (20).

10. A system (21) for performing the method (1) according to any one of the preceding claims, comprising: - Vehicle (4), vehicle rear end (10) associated with said vehicle (4), mobile communication device (2) having storage medium, programmable vehicle key (5) connected to said vehicle (4) in a communication manner, and programmable new vehicle key (6) capable of being connected to said vehicle (4) in a communication manner. - A teaching application, which includes 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 connected to the mobile communication device (2) wirelessly. -The vehicle (4) therein includes: an electronic ignition start switch (17) having a key communication interface (18) for communicating with the vehicle key (5) and the new vehicle key (6); and a vehicle infotainment device (13) having a user communication interface (14) for communicating with a user (3). -The vehicle backend (10) includes, 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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