BMW Patente

The present disclosure relates to synchronizing an internal time of an automotive control unit in a vehicle with one or more further times of one or more further entities. One or more internal motion parameter indicators are compared to one or more further motion parameters. Each internal motion parameter indicator is associated with an internal time stamp based on the internal time of the automotive control unit while each further motion parameter is associated with a further time stamp based on the further time of the corresponding further entity. Then, one or more time offsets between the internal time stamp and the one or more further time stamps are determined based on the comparison. Finally, the internal time is synchronized with the one or more further times based on the one or more time offsets.

The invention relates to a method for initializing a hardware token for sharing of a digital key in a digital access system for a vehicle, comprising providing on the hardware token a hardware token management applet, a hardware token instance CA comprising a hardware token instance CA certificate, wherein the instance CA certificate is issued by a device CA. The invention also relates to a system for carrying out this method and to a hardware token.

The invention relates to a method for handling connection loss during a sharing process of a digital vehicle access key from a sharing device to a hardware token in a digital , comprising detecting a loss of communication between the hardware token and the sharing device during the sharing process of a digital key; attempting to restore the communication and retrying the failed sub-sequence of commands; continuing the sharing process once the communication is successfully re-established. The invention also relates to a system for carrying out this method and to a hardware token.

The invention relates to a method for securely sharing a digital vehicle access key, comprising initiating the sharing of a digital key from a server and/or a backend system to a hardware token, wherein the server and/or a backend system is adapted to manage the digital key; creating the digital key on the hardware token via a secure communication channel. The invention also relates to a system for carrying out this method and to a hardware token.

The present document describes a key entity (160) comprising a storage area (166) for storing a digital key (161). The key entity (160) is configured to receive a setup request for setting up a communication channel with a device (110) via a communication link (135) between the device (110) and the key entity (160), wherein the setup request comprises device data that is dependent on a password for setting up the communication channel. Furthermore, the key entity (160) is configured to delay processing of the setup request in accordance to retry duration data that is stored in the storage area (166) of the key entity (160). In addition, the key entity (160) is configured to determine, based on the received device data, whether or not the password is correct, and to reset the retry duration data in dependence on whether the password is determined to be correct or not.

The invention relates to a method for binding the sharing of a digital key to a hardware token in a digital key access system for vehicles, wherein the hardware token is adapted to hold the digital key, comprising restricting the sharing of a digital key to a defined plurality of hardware tokens. The invention also relates to a system for carrying out this method and to a hardware token.

The present document describes an apparatus (140, 101, 110, 160) for enabling the control of one or more vehicle functions (103) of a vehicle (100) using a key entity (110, 160) which comprises a digital key (161). The apparatus (140, 101, 110, 160) is configured to associate the vehicle (100) with a group identifier for a group of different vehicles (100) that the vehicle (100) is part of. Furthermore, the apparatus (140, 101, 110, 160) is configured to handle a key attestation (162) of the digital key (161), wherein the key attestation (162) is indicative of the group identifier, and to enable authentication of the key entity (110, 160) at the vehicle (100) using the key attestation (162).

A method for lane change classification of a vehicle comprises the following steps carried out by computer hardware components: acquiring sensor data representing a movement of a vehicle on a traffic lane over a predetermined time period; determining, on the basis of the sensor data, a lateral velocity of the vehicle and a lateral distance of the vehicle relative to a boundary of the traffic lane; assigning the movement of the vehicle to a lane changing class or a lane keeping class on the basis of a classification function, the lane changing class being associated with the vehicle departing from the lane, the lane keeping class being associated with the vehicle staying on the lane, wherein the classification function is defined in a lateral velocity dimension of the vehicle and a lateral distance dimension of the vehicle, and the classification function representing a boundary between the lane changing class and the lane keeping class.

The present disclosure relates to enabling active learning for object classification by an automotive vision system configured to perform visual perception tasks, based on which a vehicle is configured to perform at least one driving automation system feature. The automotive vision system determines one or more 3D bounding boxes and a corresponding object class within three-dimensional sets of automotive sensor data, which including at least one automotive camera frame, i.e. two-dimensional data, while a secondary vision system determines one or more 2D bounding box vectors for each automotive camera frame. Based at least on the one or more 2D bounding box vectors, a frame score is calculated for each automotive camera frame. Then, one or more automotive camera frames are provided to an oracle based on the corresponding frame scores. The oracle returns annotated camera frames, which may then be used to retrain the automotive vision system.

Embodiments relate to a method 100 for improving an opening of a flap of a vehicle. The method comprises obtaining a movement profile indicative of a trajectory of a user relative to the vehicle and estimating, by a trained machine-learning model and based on the movement profile, whether the flap is to be opened. The trained machine-learning model is configured to generate an embedding based on the movement profile. If it is estimated by the trained machine-learning model that the flap is to be opened, it is determined whether the embedding comprises an outlier. If it is determined that the embedding does not comprise an outlier, the opening of the flap is triggered.

The present document describes a digital key device (110) comprising a digital key (111) which is adapted for authentication of the digital key device (110) at a vehicle (100). The digital key device (110) is configured to determine identification data regarding the identity of the service provider for a digital key-based service for the vehicle (100), and to provide the identification data directly to a vehicle server (140) which is configured to track one or more shared digital keys (161) that have been derived from the digital key (111) of the digital key device (110). Furthermore, the digital key device (110) is configured to send a service activation request to a service server (160) for providing the digital key-based service using a shared digital key (161) that is derived from the digital key (111) of the digital key device (110), wherein the shared digital key (161) is adapted for authentication at the vehicle (100), and wherein the service activation request comprises the identification data.

The present document describes a device (110) for interacting with a digital key (161) for controlling one or more vehicle functions (103) of a vehicle (100), wherein the digital key (161) is stored on a digital key entity (160). The device (110) is configured to set up a communication channel with the digital key entity (160); to request routing information regarding a vehicle server (140) that is associated with the digital key (161) on the digital key entity (160) via the communication channel; to receive the requested routing information via the communication channel; and to use the routing information for interacting with the vehicle server (140) regarding the digital key (161).

Ein Verfahren zum Signieren von Daten mit einem digitalen Fahrzeugschlüssel (112) umfasst ein Empfangen einer Indikation (124) eines ausgewählten Signaturmodus, wobei der Signaturmodus unter mindestens einem ersten Signaturmodus (128, 132) und einem zweiten Signaturmodus (136) ausgewählt ist, wobei der mindestens eine erste Signaturmodus (128, 132) ein Signieren unter Mitwirken eines Benutzers (108) betrifft, und der zweite Signaturmodus (136) ein Signieren ohne Mitwirken des Benutzers (108) betrifft; ein Signieren (126) von Daten entsprechend dem ausgewählten Signaturmodus; ein Senden (140) der signierten Daten; und ein Empfangen einer Rückmeldung (148) bezüglich der signierten Daten.

The present document describes a device (110) for managing a digital key (111) for controlling one or more vehicle functions (103) of a vehicle (100). The device (110) is configured to set up a communication channel with a key card (160), and to interact with the key card (160) regarding a shared digital key (161) of the key card (160), which is derived from the digital key (111) of the device (110), via the communication channel.

The present document describes a digital key device (110) comprising a digital key (111) which is enabled for controlling one or more vehicle functions (103) of a vehicle (100). The digital key device (110) is configured to determine one or more client- and/or server-side parameters for a digital key-based service regarding the vehicle (100), and to generate signed service management request data based on the one or more client- and/or server-side parameters, using the digital key (111). Furthermore, the digital key device (110) is configured to send a service management request to a management server (190) of the digital key-based service for requesting the digital key-based service regarding the vehicle (100) to be provided, wherein the service management request comprises the signed service management request data.

The present document describes a device (110) for interacting with a shared digital key (161) for controlling one or more vehicle functions (103) of a vehicle (100), wherein the shared digital key (161) is stored on a key card (160). The device (110) is configured to cause termination of a digital key endpoint for the shared digital key (161) on the key card (160); to receive a termination attestation from the key card (160), wherein the termination attestation indicates that the digital key endpoint has been terminated; to cause deletion of the shared digital key (161) from a key tracking server for tracking keys; and subject to causing deletion of the shared digital key (161) on the key tracking server, to cause deletion of the digital key endpoint from a memory slot of a storage area (166) of the key card (160).

The present disclosure relates to verifying a functional requirement of a driving automation system feature, which is configured to be performed by a plurality of vehicles of varying vehicle types. To verify a driving automation system feature for a given vehicle type, a combined vehicle type state model is derived based on one or more characteristics of the given vehicle type. The combined vehicle type state model provides a future vehicle type state based on a current vehicle state and a control output of the driving automation system feature. Further, a type operational design domain (ODD) and a vehicle type safe state set are obtained. If the combined vehicle type safe state model outputs future vehicle type states within the type ODD for all control outputs determined by the driving automation system feature for the vehicle type safe state set, the driving automation system feature is verified.

Embodiments relate to a method for improving a control of a flap of the vehicle. The method comprises obtaining vehicle data indicating a status of the vehicle. The vehicle data is independent of a locking status of the vehicle. Further, the method comprises generating control data for controlling a movement of the flap of the vehicle. The control data is generated based on the vehicle data.

The present invention provides a generative AI processing method and system for a vehicle, the method comprising: establishing a connection between the vehicle and a mobile device; receiving a speech input from a user in response to triggering an in-vehicle speech assistant; and feeding the speech input into an AI model built-in at the mobile device to obtain an AI-generated result. Additionally, the present invention also provides a vehicle supporting generative AI processing.

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