Methods for implementing at least one control function in a vehicle and vehicle arrangement

Abstract

The invention relates to a method for implementing at least one control function 10 in a vehicle 5, wherein a digital friend key 7 is generated based on a digital owner key 4 of the vehicle 5, wherein when the vehicle 5 is used with the digital friend key 7, the at least one control function 10 is activated, wherein the at least one control function 10 is configured as a seat belt control function 11, wherein a seat belt status is checked, wherein the seat belt status is negative if the seat belt 12 is not fastened, wherein the seat belt control function triggers a seat belt securing action in the event of a negative seat belt status, and / or is configured as an identity control function 19, wherein the identity control function 19 defines an authorized user, wherein a user's identity status is biometrically verified when the user activates the vehicle 5.where the identity state is negative if the user does not match the authorized user, and the identity control function 19 triggers an identity security action in the event of a negative identity state.

Description

[0001] The invention relates to a method for implementing at least one control function in a vehicle and to a vehicle arrangement designed for implementing the method.

[0002] The digital key, also known as a "digital key" or "mobile key," allows the use of a smartphone or smartwatch as a car key. Most modern vehicles offer this feature, which provides a range of advantages and functions, such as keyless locking and unlocking, engine start, and remote access, allowing the vehicle to be locked or unlocked remotely.

[0003] The publication EP 3176760 A1 discloses a method for placing a shipment in a motor vehicle, comprising the following steps: - generating a temporary digital key by a central unit, - transmitting the digital key to a control unit of the motor vehicle, - transmitting authentication information associated with the shipment to an authentication element, - transporting the shipment to the motor vehicle, - capturing the authentication information by a reader of the motor vehicle, - controlling a vehicle device to enable access to at least part of the motor vehicle interior upon fulfillment of an authentication condition that evaluates both the authentication information and the digital key.

[0004] The invention is based on the objective of creating an improved control option for a vehicle owner.

[0005] This problem is solved by a method for implementing at least one control function in a vehicle having the features of claim 1 and by a vehicle arrangement having the features of claim 10.

[0006] Preferred or advantageous embodiments of the invention will become apparent from the dependent claims, the following description and / or the accompanying figures.

[0007] According to the invention, a method for implementing at least one control function in a vehicle is proposed. The implementation includes, in particular, the activation and execution of the at least one control function. The vehicle can be, in particular, a passenger car, truck, or bus. Alternatively, the vehicle can also be a two-wheeler, in particular a motorcycle, or a three-wheeler.

[0008] Based on a digital owner key for the vehicle, a digital friend key with a predefined control function is generated. Specifically, a vehicle configuration is provided, comprising the vehicle and at least one mobile device. A key system is installed and operational on the vehicle configuration. The key system can be designed according to CCC specifications, specifically at least Release 3.0. The mobile device and the vehicle feature a software structure for implementing the key system, in particular an ecosystem consisting of several software solutions that organize the activities and transactions of the actors, according to CCC specifications for key management and the provision of key-based services, such as secure communication, key management with user profile management, and / or key tracking.

[0009] The digital owner key is designed as a digital key that authorizes vehicle functions. These functions can include, for example, unlocking or starting the vehicle. Specifically, the digital owner key is stored on a mobile device. For this purpose, the mobile device can have a wallet or a secure element, with the digital owner key stored in the wallet or secure element, respectively. It is preferred that only one digital owner key is assigned to each vehicle.

[0010] Based on the digital owner key, the digital friend key can be generated and authorized with the specified control function. In accordance with CCC guidelines, the digital owner key is referred to as the "Owner Key" and the digital friend key as the "Friend Key." The terms "owner" and "friend" are thus to be understood as rights holder and grantor, or primary user or master and rights recipient, respectively, and user or slave. In particular, the term "friend" does not necessarily imply a social relationship. For the sake of clarity, the "owner" will be referred to as the owner and the "friend" as the user in the following text.

[0011] When generating the digital friend key, the owner can select the control function so that it is stored as an automatically activating function in the friend key.

[0012] By generating a digital friend key based on the digital owner key, the digital friend key can be authorized for functions, particularly at least one control function, within the vehicle. This means that these functions, at least the control function, are automatically activated when the friend key is used with the vehicle. Authorization and / or activation of the control function is achieved primarily through the transfer of key supplement data from the friend key to the vehicle. In the CCC specifications, this key supplement data is referred to as properties, attributes, or authorizations of the digital friend key.

[0013] When the digital key is used with the vehicle, at least one control function is activated. For example, the key supplement data of the digital key can describe or trigger the activation of at least one control function.

[0014] The at least one control function is designed as a seat belt monitoring function, checking the seat belt status. For example, the seat belt status is positive if the seat belt is fastened. The seat belt status is negative if the seat belt is not fastened. The seat belt monitoring function is designed to trigger a seat belt securing action in the event of a negative seat belt status. Specifically, the seat belt status is checked from the driver's seat of the vehicle. Alternatively or additionally, the seat belt status of other vehicle seats can also be checked.

[0015] The seatbelt status can be checked by reading data from a seatbelt sensor. For example, the seatbelt sensor is located in the buckle. Such seatbelt sensors are now standard equipment in vehicles, making seatbelt monitoring easy to implement.

[0016] Optionally, a seat occupancy status can also be checked, whereby a negative seat belt status for a vehicle seat is only displayed if the vehicle seat is occupied, thus indicating a positive seat occupancy status. Such seat occupancy statuses can also be detected using corresponding sensors, which are standard equipment in the vehicles.

[0017] Alternatively or additionally, at least one control function is implemented as an identity control function. Within the identity control function, an authorized user is defined who is authorized to use the vehicle. As part of the identity control function, a user's identity is biometrically verified when the user activates the vehicle. The identity status is negative if the user does not match the authorized user. This is achieved by comparing the verified user and their biometric data with the authorized user and their biometric data. For example, the identity status is positive if the monitored user matches the authorized user. The biometric verification of the user can be carried out by various devices in the vehicle. Optionally, Face ID or BioID can be used as biometric data.BioID can be set up, for example, during "owner pairing" and / or with the authorization of the owner key, or FaceID or BioID can be used, which is connected to the device that has the friend key.

[0018] One aspect of the invention is that while it is already possible to activate or deactivate specific functions via authorizations in a friend key, or to define restrictions, for example, regarding the vehicle's maximum speed or a maximum volume of the audio system, these restrictions are independent of user behavior. In contrast, the at least one control function is designed to react to user behavior. Here, the user behavior (fastening the seatbelt or passing the digital key to an unauthorized user) is first checked, and only then, depending on the seatbelt status, is a corresponding security action triggered. Alternatively or additionally, the user's identity is first checked, and the identity verification action is triggered based on the identity status.The practical benefit of having at least one control function is that it increases safety for the vehicle and for the user, especially for the authorized user.

[0019] In a preferred embodiment of the invention, the seatbelt securing action and / or the identity verification action is designed as an optical, acoustic and / or haptic reaction of the vehicle.

[0020] With regard to a visual response, the vehicle's lighting systems can be activated, for example, switched to continuous or intermittent lighting. This includes, for instance, the exterior lighting, particularly the headlights or turn signals. Alternatively or additionally, the vehicle's interior lighting, especially the instrument panel lighting or other artificial light sources inside the vehicle, can be activated.

[0021] Secondly, messages can be displayed on display devices, in particular on a display or on the instrument panel of the vehicle, indicating that the seat belt status is negative and / or the identity status is negative.

[0022] It is also possible that acoustic reactions, such as the sound of a warning tone or a spoken message ("Please fasten your seatbelt," "Unauthorized driver," etc.), are triggered, for example, from the vehicle's audio system as safety actions, i.e., as a seatbelt activation and / or identity verification action. A haptic reaction, such as a vibration from the steering wheel and / or seat surface, can also be a safety action.

[0023] The vehicle's reaction may also consist of a combination of the aforementioned reactions, which are preferably combined in such a way that the user is clearly alerted and / or informed of the negative seat belt condition and / or negative identity condition.

[0024] In a preferred embodiment of the invention, the seat belt control function is configured to trigger the seat belt securing action when the vehicle is about to be started and the seat belt is in a negative state. The seat belt securing action preferably includes preventing the vehicle from starting.

[0025] In this implementation, the owner of the digital owner key ensures that the user with the digital friend key cannot start the vehicle as long as the seatbelt status is negative.

[0026] In an alternative or enhanced implementation, the seatbelt monitoring function is designed to trigger the seatbelt securing action when the vehicle is moving and the seatbelt status is negative. The seatbelt securing action preferably involves a change in the vehicle's driving characteristics. To avoid endangering the user and the vehicle while driving, the intervention in the driving characteristics should preferably not be so drastic as to bring the vehicle to a complete stop. Therefore, it is proposed to modify the driving characteristics by, for example, limiting the vehicle's maximum speed or reducing it over time as long as the seatbelt status is negative. Similarly, maximum acceleration can be limited.

[0027] In a preferred embodiment of the invention, the identity control function is configured to trigger the identity verification action upon an attempt to open the vehicle and in the event of a negative identity status. The attempt to open the vehicle can be carried out by attempting to unlock it using the friend key or by mechanically opening at least one door of the vehicle. It is preferably provided that the identity verification action is designed to prevent the vehicle from being opened or includes this prevention. In particular, unlocking the vehicle and / or mechanically opening at least one door of the vehicle can be prevented as an identity verification action. This embodiment ensures that only the authorized user can access the vehicle.

[0028] Alternatively or additionally, the identity control function is configured to trigger an identity verification action if the identity status is negative when the vehicle is to be started. This identity verification action is specifically designed to prevent the vehicle from being started, or includes this prevention. In this configuration, it is ensured that only the authorized user can start and drive the vehicle.

[0029] Biometric verification of the user's identity is carried out, for example, using vehicle cameras, particularly those integrated into the vehicle. During the verification process, a camera image of the user is captured and compared with a camera image or derived biometric data of the authorized user. The advantage of using vehicle cameras is that the user's precise position relative to the vehicle (e.g., in the driver's seat, outside in front of the door to be opened, etc.) can be determined and verified. If the verification shows that the user's camera image matches the camera image or biometric data of the authorized user, and optionally, that the user is in the expected position (e.g., in the driver's seat during a vehicle start attempt, outside in front of the door during an attempt to open it, etc.), the verification process can be initiated.), the identity status is set to positive.

[0030] To transfer biometric data, particularly camera images or derived biometric data, from the authorized user to the identity verification function, a training process can be performed beforehand. For example, a camera image of the authorized user can be taken using the owner's key and made available to the vehicle and, in particular, to the identity verification function. The camera image can be captured, for example, via a device such as a smartphone authorized with the owner's key, or via a vehicle camera. Training can only be performed with authorization via the owner's key to prevent misuse.

[0031] Alternatively or additionally, a fingerprint sensor can be used for biometric verification, whereby the learning of the biometric data, in particular the fingerprint or derived biometric data of the authorized user, is authorized in the same way via the owner key.

[0032] The vehicle camera and / or fingerprint sensor for biometric verification can be located in an outdoor area and / or an indoor area of ​​the vehicle.

[0033] If the goal is to prevent the vehicle from being opened as an identity verification measure, it is preferred that the fingerprint sensor be accessible on the exterior and / or that the vehicle's camera has a field of view covering the exterior and is preferably designed as an exterior camera. If the goal is to prevent the vehicle from being started as an identity verification measure, it is preferred that the fingerprint sensor be accessible inside the vehicle and / or that the vehicle's camera has a field of view covering the interior and is preferably designed as an interior camera. In the latter case, the vehicle's camera can be designed as an interior camera that simultaneously monitors other functions, such as tracking the user's eye movements, particularly the driver's, and evaluates this data for further purposes.

[0034] The procedure specifically provides that the user is informed about the seatbelt safety action and / or the identity verification action. As already explained, a display device in the vehicle can be used for this purpose. Alternatively or additionally, the friend key is stored on a user's device, and the user is informed via this device.

[0035] Alternatively or additionally, the owner of the key will be informed about the seatbelt locking action and / or the identity verification action. This can be done via email, SMS, WhatsApp, etc. Preferably, the key is stored on the owner's device, such as a smartphone, and the owner is notified via this device.

[0036] The notification can be sent via a message, such as "Seatbelt is not fastened," or "Unauthorized user is attempting to open and / or start the vehicle."

[0037] A further aspect of the invention is comprised of a vehicle arrangement as previously described, which is suitable and / or configured for carrying out the previously described method. The vehicle arrangement includes the vehicle, the owner's key, and the friend key, as previously described. Optionally, the vehicle arrangement includes at least one terminal device, on which the friend key and / or the owner's key, in particular activated and / or expiration-capable and / or operational, is stored.

[0038] While safety is obviously a major concern in the state of the art, as demonstrated by the well-known speed and acceleration limits, some of the most important safety aspects relating to material safety (risk to the vehicle) and the safety of persons (risk to the user and owner) have not yet been sufficiently considered.

[0039] A possible addition, alternative, or optional feature would be to include three potential preconditions for sharing keys, in order to increase the safety of friends and the owner. The owner could choose to require one or more of these restrictions when sharing their key. 1. The person driving the vehicle must wear a seat belt when starting the engine (according to the seat belt sensors) and / or while driving. 2. The person driving the vehicle must be the authorized user (according to the interior cameras or fingerprints). 3. The person unlocking the vehicle must be the authorized user (according to the external cameras or fingerprints).

[0040] The primary reason for restriction number 1 is safety: for example, if a parent gives their rebellious teenager the car key, they will likely want to ensure that the teenager wears the seatbelt during the journey.

[0041] The motivation for restrictions No. 2 and 3 is also safety and trust: If a parent, for example, gives their rebellious teenager the car key, they will probably not like it if their teenager lets all their friends drive or unlocks the vehicle.

[0042] While the speed limit for radio volume can be preset deterministically, these three new restrictions cannot be enforced because they depend on user behavior. Therefore, the possible measures (which can also be combined) in the event of a violation of such a restriction are: - Notify the user-driver with a warning (HMI or telephone message: 1. "Fasten seatbelt" / 2. "An unknown driver has been detected", 3. "An unknown user has unlocked the vehicle", beep tone ...) - notify the owner remotely (e.g. via their myBMW app: 1. “Your son is driving without a seatbelt” / “an unknown user is driving (2.) / unlocking (3.) your car with your son’s digital key.”). - go a step further and simply block the engine start if the user is not wearing a seatbelt (1.) or if they are not the authorized user (2.).

[0043] Regarding the technical implementation, the restriction of the seatbelt requirement (1.) could be verified using seatbelt pretensioners, which are already present in modern cars. Driver identification could be achieved using in-vehicle cameras (currently used as the eyes for onboard safety systems) and a facial recognition computer vision model. Since this computer vision model would need to be trained on the authorized user's face, a facial recognition setup step would be required before first use (similar to setting up facial recognition on smartphones). This could be done via telephone or in the car, based on a setup function running on the vehicle's ECUs and using the interior cameras.

[0044] An alternative to using vehicle cameras for points 2 and 3 are fingerprint sensors, if the vehicle is equipped with them (they must be installed inside the car for point 2 and outside the car, e.g. on the door handle, for point 3).

[0045] Further features, advantages, and effects of the invention will become apparent from the following description of preferred embodiments of the invention. These include: Fig. 1 A schematic block diagram of a vehicle arrangement as an embodiment of the invention with an implemented seatbelt control function. Fig. 2 a schematic block diagram of a vehicle arrangement as an embodiment of the invention with a first variant of an implemented identity control function; Fig. 3 a schematic block diagram of a vehicle arrangement as an embodiment of the invention with a second variant of an implemented identity control function. Fig. Figure 4 shows a flowchart as an embodiment of the method according to the invention.

[0046] Corresponding or identical parts are each provided with the same reference symbols in the figures.

[0047] The Fig. Figure 1 shows a schematic block representation of a vehicle arrangement 1 as an embodiment of the invention and to illustrate an embodiment of the method.

[0048] Vehicle configuration 1 includes two mobile devices 2 and 3, which are, for example, smartphones. Mobile device 2 has a digital ownership key 4 and is thus assigned to an owner. The digital ownership key 4 is stored, for example, on a secure element or a wallet on mobile device 2.

[0049] The vehicle arrangement 1 comprises a vehicle 5, wherein the vehicle 5 has a vehicle service environment on an electronic data processing device 6. The vehicle service environment can, for example, be configured as an operating system with apps. A key system is implemented in an executable manner on the mobile devices 2, 3 and the vehicle 5, in particular on the digital data processing device 6, specifically on the vehicle service environment. The key system can, for example, be configured according to CCC specifications.

[0050] Mobile device 2 has an app or wallet configured to generate and authorize a digital friend key 7 based on the digital user key 4. The digital friend key 7 is transferred to a user's mobile device 3. The transfer occurs in such a way that the digital friend key 7 is authorized and stored on the mobile device 3. For example, the digital friend key 7 is stored in a wallet or on a secure element on the mobile device 3.

[0051] The digital keys 4 and 7 can establish secure communications 8 and 9 with the vehicle service structure of the digital data processing unit 6. These secure communications 8 and 9 are authorized via the digital keys 4 and 7. The secure communications 8 and 9 primarily take place via BLE, UWB, and optionally via NFC. The secure digital communications 8 and 9 comply with CCC specifications.

[0052] The digital keys 4 and 7 contain, for example, key supplement data that grants rights or authorizations to use functions of the vehicle 5. These functions can include, for example, starting the vehicle 5, unlocking the vehicle 5, etc. The digital owner key 4, in particular, possesses all rights or authorizations. Specifically, the digital owner key 4 has the right to generate and distribute such digital friend keys 7.

[0053] The mobile device 2 generates the digital friend key 7, wherein a control function 10 is described, in particular defined, or referenced in the friend key 7, especially in the key supplement data. When generating or modifying the friend key, the owner can specify a control function that is automatically activated when the friend key is used on the vehicle 5, in particular when the vehicle 5 is activated with the friend key. The control function is specifically designed as a software function or app of the vehicle service environment on the digital data processing device 6.

[0054] It is intended that when the vehicle 5 is used with the digital friend key 7, the control function 10 will be activated automatically.

[0055] Thus, the owner of the mobile device 2 creates the digital friend key 7 using the digital owner key 4. This friend key is configured so that when the vehicle 5 is activated with the friend key 7, the control function 10 is automatically started. The vehicle 5 is activated with the friend key 7, for example, via a radio connection, specifically secure communication 9.

[0056] In the Fig. In the vehicle assembly 1, control function 10 is configured as a seat belt control function 11, whereby the seat belt status of a seat belt 12 is checked. The seat belt 12 is, for example, assigned to a driver's seat 13. Optionally, the seat belt status of other seat belts (not shown) in the vehicle 5 can also be checked. The seat belt status is positive if the seat belt 12 is fastened to the user. The seat belt status is negative if the seat belt 12 is not fastened to the user. To check the seat belt status, the vehicle assembly 1 has a seat belt sensor 14, which is, for example, integrated into a buckle for the seat belt 12 and can detect a locked position of the seat belt 12.

[0057] If the seat belt status is negative, a seat belt securing action is triggered by the seat belt control function 11. For this purpose, the seat belt control function 11 can, for example, access a vehicle control unit 15.

[0058] Safety action: Preventing the vehicle from starting 5: In the event that vehicle 5 is stationary, the seatbelt securing action can be configured to prevent vehicle 5 from being started. Therefore, vehicle 5 cannot be started as long as the seatbelt 12 is not fastened.

[0059] Safety action: Change in the driving characteristics of the vehicle 5: In the event that the vehicle 5 is already moving, the seatbelt securing action can be designed as a change in the driving characteristics of the vehicle 5, for example by reducing a maximum speed or a maximum acceleration of the vehicle 5.

[0060] Safety action: Optical reaction of the vehicle 5: Alternatively or additionally, the seat belt securing action can be designed such that the seat belt control function 11 optionally controls an external light 16 via the vehicle control 15, so that, for example, the headlights, turn signals and other light sources are activated or controlled in a pulse pattern, so that they flash etc. and form an optical reaction of the vehicle 5 as a safety action.

[0061] It is also possible that the seat belt securing action is designed in such a way that the seat belt control function 11 optionally accesses an interior light 17 via the vehicle control 15 and activates light sources in the interior or has to be controlled in a pulse so that they flash etc. and form an optical reaction of the vehicle 5 as a securing action.

[0062] Furthermore, it is possible that the seat belt securing action is designed such that the seat belt control function 11 accesses display devices 18, such as a display or the instrument panel, to issue a message relating to the seat belt securing action and to form an optical reaction of the vehicle 5 as a securing action.

[0063] Safety action: Haptic reaction of the vehicle 5: It may be provided that the seat belt control function 11 triggers a vibration of the steering wheel or the vehicle seat 13 to form a haptic response of the vehicle 5 as a safety action.

[0064] Backup action: Message to the user and / or operator

[0065] Another possibility is that the seatbelt locking action is designed to send a message to the user, specifically to their mobile device 3, to inform the user about the seatbelt locking action and / or the negative seatbelt status. Alternatively or additionally, a corresponding message can be sent to the owner, specifically to their mobile device 2.

[0066] In the Fig. Figure 2 is an implementation of an identity control function 19, represented as a control function 10. In the identity control function 19, an authorized user is defined, and the identity control function 19 biometrically verifies the identity state of a user, specifically with the friend key 7. If the user activating the vehicle 5 with the friend key 7 corresponds to the authorized user, the identity state is positive; if the user activating the vehicle 5 with the friend key 7 does not correspond to the authorized user, the identity state is negative. The identity control function 19 is configured to trigger an identity verification action in the event of a negative identity state.

[0067] Biometric verification can be carried out either via a fingerprint sensor 20 or, alternatively, the vehicle 5 has a vehicle camera 21 which captures the vehicle seat 13 and the user seated therein within its field of view and creates a camera image of the user.

[0068] The biometric data, i.e., the user's fingerprint and / or camera image, are compared with the biometric data of the authorized user. For this purpose, the authorized user's biometric data is first transmitted to the identity control function 19. For example, the owner can capture the biometric data with their mobile device 2, on which the owner key 4 is located, and transmit it to the identity control function 19. Alternatively, the biometric data of the intended authorized user can be captured in the vehicle 5 by the fingerprint sensor 20 and / or the vehicle camera 21 and authorized by the owner using the owner key 4.

[0069] The same security actions can be used for identity verification as for seatbelt securing, so please refer to the previous description. The security actions are triggered by identity verification function 19 instead of seatbelt control function 11.

[0070] While in the Fig. 2 the identity control function 19 is tailored to a user who is inside the vehicle 5, shows the Fig. 3. An implementation of the identity control function 19, wherein the user is located outside the vehicle 5. In this implementation, the field of view of the vehicle camera 21 covers the exterior of the vehicle 5, so that the camera image can be captured when the user is located outside. The fingerprint sensor 20 is positioned so that it can be operated from the outside.

[0071] As an identity security action, if the user's identity is negatively determined, a door device 22 is activated, which is designed to prevent the unlocking and / or opening of the door(s) of the vehicle 5. Additionally, the same security actions as described for the seatbelt safety action and / or identity security action can be used as identity security actions, so reference is made to the preceding description. The security actions are triggered by the identity control function 19 instead of the seatbelt control function 11.

[0072] The Fig.Figure 4 shows a flowchart as an embodiment of the method according to the invention. In step 100, the friend key 7 is generated based on the owner key 4, wherein the friend key 7 is generated such that it has a preset for the control function 10. The owner can select one or more of the control functions 11, 19.

[0073] In step 200, the vehicle 5 is activated using the friend key 7, whereby the activation includes an attempt to open and / or start the vehicle 5.

[0074] In step 300, by activating the vehicle 5 with the friend key 7, at least one of the control functions 10 is activated.

[0075] In step 400, depending on the control function 10 used, the seat belt status and / or the identity status is checked.

[0076] In step 500, depending on the control function 10 used, the seatbelt securing action is triggered in the event of a negative seatbelt condition and / or the identity securing action is triggered in the event of a negative identity condition.

[0077] In step 600, the various security actions are implemented, in particular preventing the vehicle 5 from starting, changing the driving characteristics of the vehicle 5, preventing the vehicle 5 from being opened, controlling the exterior lighting 16, controlling the interior lighting 17, displaying a message on the display devices 18, transmitting a message to the user, in particular to the user's mobile device 3, and / or transmitting a message to the owner, in particular to the owner's mobile device 2.

[0078] The three different variants of control function 10 can be implemented and / or used individually or in any selection in parallel. Reference symbol list 1 Vehicle arrangement 2. Owner's mobile device 3. User's mobile device 4. Digital owner key as the owner's digital key 5 vehicles 6 Digital Data Processing Equipment 7. Digital friend key as the user's digital key 8 Secure Communication 9 Secure Communication 10 Control function 11 Seatbelt control function 12 Seat belt 13 vehicle seats 14 Seatbelt sensor 15 Vehicle control 16 Outdoor lighting 17 Interior lighting 18 Display devices 19 Identity verification function 20 fingerprint sensor 21 Vehicle camera 22 Door fittings QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 3176760 A1

[0003]

Claims

[1] Method for implementing at least one control function (10) in a vehicle (5), wherein a digital friend key (7) with a control function specification (10) is generated based on a digital owner key (4) of the vehicle (5), where, when the vehicle (5) is used with the digital friend key (7), at least one predefined control function (10) is activated, wherein the at least one control function (10) is configured as a seat belt control function (11), wherein a seat belt condition is checked, wherein the seat belt condition is negative if the seat belt (12) is not fastened, wherein the seat belt control function (11) triggers a seat belt securing action in the event of a negative seat belt condition and / or is configured as an identity control function (19), wherein the identity control function (19) defines an authorized user, wherein a user's identity state is biometrically verified when the user activates the vehicle (5), wherein the identity state is negative if the user does not correspond to the authorized user, and wherein the identity control function (19) triggers an identity security action in the event of a negative identity state. [2] Method according to claim 1, characterized by , that the seatbelt securing action and / or the identity securing action is designed as an acoustic, optical and / or haptic response of the vehicle (5). [3] Method according to claim 1 or 2, characterized by , that the seat belt control function (11) is configured to trigger the seat belt securing action when the vehicle (5) is to be started, wherein the seat belt securing action is configured as a prevention of the vehicle (5) being started. [4] Method according to any one of the preceding claims, characterized by , that the seat belt control function (11) is designed to trigger the seat belt securing action when the vehicle (5) is moving, wherein the seat belt securing action is designed as a change in the driving characteristics of the vehicle (5). [5] Method according to any one of the preceding claims, characterized by , that the identity control function (19) is configured to trigger the identity security action in the event of an attempt to open the vehicle (5), wherein the identity security action is configured as a prevention of the opening of the vehicle (5). [6] Method according to any one of the preceding claims, characterized by , that the identity control function (19) is configured to trigger the identity security action when the vehicle is to be started, wherein the identity security action is configured as a prevention of the vehicle (5) being started. [7] Method according to any one of the preceding claims, characterized by that the biometric verification of the user's identity status is carried out via a vehicle camera (21) and / or via a fingerprint sensor (20). [8] Method according to any one of the preceding claims, characterized by that the user is informed about the seatbelt securing action and / or the identity verification action. [9] Method according to any one of the preceding claims, characterized by , that the owner of the owner's key (4) is informed about the seatbelt securing action and / or the identity securing action. [10] Vehicle arrangement (1) for implementing the method according to any of the preceding claims. with the vehicle (5) with the digital owner key (4) and with the digital friend key (7), wherein the digital friend key (7) is generated on the basis of the digital owner key (4) with a specification of at least one control function (10), wherein the vehicle (5) is designed to activate at least one predefined control function (10) when the vehicle (5) is used with the digital friend key (7), wherein the at least one control function (10) is configured as the seat belt control function (11), wherein a seat belt condition is checked, wherein the seat belt condition is negative if the seat belt (12) is not fastened, wherein the seat belt control function triggers the seat belt securing action in the event of a negative seat belt condition and / or is configured as the identity control function (19), wherein the identity control function (19) defines an authorized user, wherein a user's identity state is biometrically verified when the user activates the vehicle (5), wherein the identity state is negative if the user does not correspond to the authorized user, and wherein the identity control function triggers an identity verification action in the event of a negative identity state.

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