Abstract: The invention relates to a charging device (100), comprising: an input-side first terminal (110_1, 110_2) for connecting to an electrical energy source (200); an output-side second terminal (190_1, 190_2) for connecting to a battery (300) to be charged; and a transformer (150), the primary winding (150_1) of which is electrically connected to the first terminal (110_1, 110_2) by means of a primary circuit (400) and the secondary winding (150_2) of which is electrically connected to the second terminal (190_1, 190_2) by means of a secondary circuit (500).

Abstract: A method for managing cryptographic keys for a control device, in particular for a motor vehicle. The method includes the following steps: associating a state with at least one of the cryptographic keys; using the at least one cryptographic key based on the state.

Abstract: A method for training a machine learning algorithm including uncertainties. The method includes: pre-training the algorithm based on initially collected data by a control unit in order to obtain an initial model, determining a set of channels, the data originating from channels contained in the set of channels being intended to be used for retraining the initial model, based on an established data level and on the respective influence, which the data originating from one of the channels have on uncertainties instantaneously contained in the initial model, transferring detected data originating from the individual channels of the set of channels to the control unit, and retraining of the initial model by the control unit based on the data transferred to the control unit.

Abstract: The invention relates to a method for operating a fuel cell system, in particular a PEM fuel cell system, in which an anode gas is supplied to an anode (1) of a fuel cell via a supply path (2), and is fed back via a recirculation path (3) connected to the anode (1), wherein hydrogen is used as the anode gas. According to the invention, during the start up of the fuel cell system, the anode gas is supplied to a drying device (4), in particular an adsorber, via at least one normally open valve (8, 9, 10), and water is extracted from the anode gas using the drying device (4). The invention also relates to a fuel cell system, in particular a PEM fuel cell system, which is suitable for carrying out the method.

Abstract: A pretreatment method for pretreating components, which are each formed of at least two different materials, prior to a coating process. The pretreatment method includes the steps: alkaline degreasing; chemical pickling in a first pickling medium; anodic pickling in a second pickling medium; and cathodic degreasing.

Abstract: A method for ascertaining an uncertainty of a prediction of a first machine learning system. The method includes: processing a detected input variable by way of the first machine learning system, intermediate results, which are ascertained during the processing of the input variable by way of the machine learning system, being stored. Processing at least one of the stored intermediate results by way of a second machine learning system, the second machine learning system outputting an output variable, which characterizes an uncertainty of the output classification. A method for training the second machine learning system and a computer system, computer program, and a machine-readable memory element, on which the computer program is stored, are also described.

Abstract: Systems and methods for performing vehicle software attestation. One system includes an electronic control unit (ECU) master included in a vehicle and a verifier system. The ECU master receives a digital shadow request generated by the verifier system and generates a digital shadow. The digital shadow is based on a unique, one-way identifier of a program memory space of the ECU master and a unique, one-way identifier of a program memory space of each of a plurality of other ECUs included in the vehicle. The ECU master transmits the digital shadow to the verifier system. The verifier system receives the digital shadow from the ECU master as a first digital shadow, receives a second digital shadow from a digital twin representing software installed in the ECU master and each of the plurality of other ECUs, and determines whether the first digital shadow matches the second digital shadow.

Abstract: A method for training a neural network. The neural network comprises a first layer which includes a plurality of filters to provide a first layer output comprising a plurality of feature maps. Training of the classifier includes: receiving, by a preceding layer, a first layer input in the first layer, wherein the first layer input is based on the input signal; determining the first layer output based on the first layer input and a plurality of parameters of the first layer; determining a first layer loss value based on the first layer output, wherein the first layer loss value characterizes a degree of dependency between the feature maps, the first layer loss value being obtained in an unsupervised fashion; and training the neural network. The training includes an adaption of the parameters of the first layer, the adaption being based on the first layer loss value.

Abstract: A method for controlling an approach of a driving vehicle to at least one preceding reference vehicle using an automated distance setting as a function of a setpoint distance between the vehicle and the reference vehicle. The setpoint distance is calculated as a function of an operating position of an operating element of the vehicle, which is actuatable by the driver of the vehicle and controls a drive of the vehicle. The setpoint distance being reduced directly or indirectly by actuating an actuating element of the vehicle, which has an actuating position, is actuatable by the driver of the vehicle, and controls a braking deceleration of the vehicle. A distance control system, a computer program, and a memory unit, as also described.

Abstract: A computer-implemented method for for learning a policy. The method includes: recording at least an episode of interactions of the agent with its environment following policy and adding the recorded episode to a set of training data; optimizing a transition dynamics model based on the training data such that the transition dynamics model predicts the next states of the environment depending on the states and actions contained in the training data; optimizing policy parameters based on the training data and the transition dynamics model by optimizing a reward. In the method, the transition dynamics model comprises a first model characterizing the global model and a second model characterizing a correction model, which is configured to correct outputs of the first model.

Abstract: A method for determining an operating state of a vehicle component of a vehicle. The method includes providing a first knowledge graph that contains information concerning a plurality of vehicle components of a vehicle, each vehicle component providing one or more signals. The method includes determining the operating state of a vehicle component from the plurality of vehicle components, the determining including selecting, using the first knowledge graph, a plurality of signals and one or more state parameters that are necessary for determining the operating state of the vehicle component. The determining further includes calculating one or more state parameters of the vehicle component, based on the selected plurality of signals. The determining of the operating state of the vehicle component includes ascertaining the operating state of the vehicle component based on the information contained in the first knowledge graph and based on the calculated one or more state parameters.

Abstract: A device and a method for controlling a robotic device are described. The method includes: carrying out a sequence of actions by the robotic device using a robot control model; ascertaining an updated policy using the carried-out sequence of actions; projecting the updated policy onto a projected policy in such a way that for each state of the plurality of states of the projected policy: a similarity value according to a similarity metric between the projected policy and the updated policy is maximized, and a similarity value according to the similarity metric between the projected policy and the initial policy is greater than a predefined threshold value; adapting the robot control model for implementing the projected policy; and controlling the robotic device, using the adapted robot control model.

Abstract: A method for providing a maneuver message for coordinating a maneuver between a road user and at least one further road user in a communication network. The method includes: receiving the communication data and/or the sensor data in the evaluation unit; determining a possible trajectory of the road user based on the communication data and/or the sensor data, at least one trajectory parameter describing a property of the possible trajectory being ascertained; calculating a trajectory transfer priority from the trajectory parameter, the trajectory transfer priority representing a relevance of the at least one possible trajectory for the road user and/or the further road user; determining, based on the trajectory transfer priority, whether the at least one possible trajectory is to be included in a maneuver message; if so: generating the maneuver message including the at least one possible trajectory, and sending the maneuver message via the communication network.

Abstract: A power supply configured for installation in a vehicle is disclosed herein. The vehicle includes a battery, an on-board diagnostics (OBD) port, and a vehicle accessory. In at least one embodiment, the power supply includes a controller area network (CAN) input configured for connection to a CAN pin of the OBD port, a battery input configured for connection to a battery pin of the OBD port, at least one power output configured for connection to a vehicle accessory, and a controller circuit. The controller circuit is configured to (i) monitor a CAN voltage provided via the CAN input, (ii) monitor a battery voltage provided via the battery input, and (iii) selectively deliver power to the at least one power output depending at least in part on the CAN voltage and the battery voltage.

Abstract: A fixing system is disclosed for mounting a camera to a support structure. The fixing system comprises a mounting plate attachable to the support structure and a base detachably connectable to the mounting plate. The mounting plate includes a recess, and the base includes an index plunger with a pressure-loaded pin and a plunger head. When the base is connected to the mounting plate, the pressure-loaded pin of the index plunger is inserted in the recess of the mounting plate. Furthermore, the plunger head of the index plunger is accessible from a side of the base facing away from the mounting plate to pull the pressure-loaded pin out of the recess.

Abstract: The invention relates to a stator of an electric machine, comprising:—a laminated stator core (3), which has a stator axis (2), comprises a plurality of stator teeth (5) and a plurality of stator slots (6) formed between the stator teeth (5), and is formed by a plurality of stacked stator laminations (4); and —electrical conductor elements (10), which run through the stator slots (6) of the laminated stator core (3) and are provided in order to form an electrical winding, more particularly a plug-in winding. In each of the stator slots (6), a slot insulator (11), more particularly a slot insulation paper, is provided in order to electrically insulate the conductor elements (10) from the laminated stator core (3). The stator laminations (4) each have a plurality of lamination teeth (7) and a lamination yoke (8), which connects the lamination teeth (7). The stator teeth (5) of the laminated stator core (3) are each formed by stacked lamination teeth (7) of the stator laminations (4).

Abstract: A wiper packaging device for two wiper blades (10), with an outer packaging (12) is disclosed. It is proposed that a connecting packaging (14) is provided, which is configured to connect the two wiper blades (10) and arrange the two wiper blades (10) in the outer packaging (12) and which comprises two parallel folds (16) that extend along an entire length (38) of the connecting packaging (14), wherein the connecting packaging (14) delimits a through-recess (18).

Abstract: The invention relates to a method for estimating the state of an energy store comprising at least one electrochemical battery cell (12, 14, 16, 18, 20, 22, 24, 26, 28) using a battery management system (BMS) which comprises an impedance spectroscopy chip, having at least the following steps: a) determining the frequency-dependent impedance of the at least one electrochemical battery cell (12, 14, 16, 18, 20, 22, 24, 26, 28) using a data set recording taken in real-time, b) training an artificial neural network (60) with temperature-based training spectra as the input and a specification for temperature values belonging to each training spectrum as the output, c) taking into consideration a battery cell-to-battery cell variance (30) between the electrochemical battery cells (12, 14, 16, 18, 20, 22, 24, 26, 28) when testing the artificial neural network (60) using weighting functions ascertained during step b) and test spectra and estimating the temperature values belonging to the test spectra according to the

Abstract: An eccentric gear unit for a braking force generator. The eccentric gear unit includes an input shaft with an eccentric, which input shaft can be rotated about an axis of rotation, wherein the eccentric is mounted in a central hole of a cam which rolls on a ring gear, and wherein the cam is coupled to an output shaft which is coaxial with the input shaft, via coupling arrangement which includes at least one pin which engages in an opening of the cam. A braking force generator having an eccentric gear unit is also provided.

Abstract: An assortment of radar sensors in different variant embodiments. Each radar sensor has: a housing terminated by a radome, a circuit board that is equipped on the side facing away from the radome with at least one radio-frequency module, and an antenna structure on the side of the circuit board facing the radome. The housing is realized identically in all variant embodiments. The antenna structure has a planar antenna structure in at least one variant embodiment, and has a hollow conductor structure in at least one variant embodiment.