Abstract: A voltage converter is designed to convert an alternating input voltage into a direct output voltage. The voltage converter includes a first sub-converter having a first switch half-bridge, which is coupled to a first pole of the input voltage by a first main coil, and a second sub-converter having a second switch half-bridge, which is coupled to the first pole of the input voltage by a second main coil. In addition, the voltage converter includes a diode half-bridge, which is jointly used by the first sub-converter and the second sub-converter. The voltage converter has a first return coil and a second return coil, which couple a center point of the diode half-bridge to a second pole of the input voltage. The first and second main coils and the first and second return coils form a coupled choke, the coupled choke having a choke core.

Abstract: A method for determining at least one current fed to an electrical machine of a drive system includes predefining a carrier frequency of the at least one current fed to the electrical machine, detecting an electromechanical feedback signal dependent on the at least one current, at a link circuit capacitor of the drive system, identifying a signal component associated with the at least one current in the feedback signal on the basis of the predefined carrier frequency, and determining the at least one current fed to the electrical machine on the basis of the signal component.

Abstract: A display device for the interior of a vehicle includes: (i) a display unit, which is designed for optical display of information and has a display element for this purpose and which can be or is arranged in a longitudinal extension direction of the vehicle behind a front row of seats, preferably on a roof lining of the vehicle; (ii) a movement unit, which is designed to move the display unit, in particular with the display element pivoted away from the roof lining of the vehicle, in the longitudinal extension direction, in particular controllably, between various working positions and/or to hold the display unit in a given working position; and (iii) a control unit which is designed to control the movement unit in such a way that the display unit and the display element are arranged at a predetermined first distance or first distance range from an element of the front row of seats.

Abstract: An air supply device for an internal combustion engine may include at least one air chamber and at least two intake pipes, which are connected to the at least one air chamber. The intake pipes may each be designed to supply air to respective cylinders of the internal combustion engine, and they each may have intake pipe end portion assigned to a corresponding inlet opening. Via the inlet openings, air can move from an air chamber interior of the at least one air chamber into respective intake pipe interiors of the at least two intake pipes and also via the intake pipe interiors to the cylinders. The intake pipe end portions may end in the air chamber interior and overlap in at least one direction, which is oriented perpendicularly to at least one center axis of at least one of the intake pipe end portions at a common overlapping region.

Abstract: In a method for checking an at least semi-autonomous driving mode of a vehicle, intervention data are provided by a plurality of vehicles. The intervention data each represent a human intervention in an at least semi-autonomous driving mode of a vehicle. The intervention data includes sensor data at the time of the intervention and position data for a position at the time of the intervention. In accordance with the intervention data from the plurality of vehicles, a position is determined at which an increased number of vehicles registered a human intervention.

Abstract: A system for a drive energy store of a hybrid or electric vehicle is provided. The system includes a receiver which is designed to receive state information of the drive energy store, the state information specifying whether a defect is present or imminent in the drive energy store; and a charging controller, which is designed to adjust a maximum charging voltage and/or a maximum state of charge for a charging process of the drive energy store by a recovery mechanism and/or a load point shift and/or an external charging station to a reduced value if the state information indicates that the defect is imminent.

Abstract: A dialog system and intelligent personal assistant capable of semantic-understanding mapping between user intents and machine services includes an interface to receive a voice or text request from a user. Semantics of the request including at least one of entities, intent, or context are extracted from the user's request. A sequence of action features is selected based on the extracted semantics. A sequence of application programming interfaces (APIs) corresponding to the sequence of action features is then executed to generate a result. An action sequence optimizer may optimize the sequence of action features based on user configuration. The examples provide a technical solution to model a richer semantic-understanding mapping between user intents and available APIs, that will be greatly improving user experience in the spoken dialogue system, as core of personal assistant.

Abstract: A method for welding balls provides a component, provides at least two balls, places at least one first ball of the at least two balls on the component, and applies an electrical voltage in such a manner that a current flows through the at least two balls and through the component, wherein the at least two balls are simultaneously welded together and the first ball is simultaneously welded to the component.

Abstract: A motorcycle with a swing arm element pivotably coupled to a holding element of the motorcycle via a rotary bearing is provided with a tensioning element. The motorcycle also includes a pulling member which engages two gear elements which are each spaced from the rotary bearing in a torque-transmitting manner. The first gear element is rotatably mounted separately from the swing arm element, and the second gear element is rotatably mounted on the swing arm element. The tensioning device for tensioning the pulling member is mounted rotatably and/or in an axially displaceable manner relative to the two gear elements on the swing arm element or on a frame of the motorcycle. The tensioning device includes at least two levers pivotable relative to one another, and a tensioning element which biases the levers against the pulling member to maintain consistent tension in the pulling member.

Abstract: A collision protection device on a motorized bicycle includes a catching element which is securely mounted on a frame of the motorized bicycle. The catching element includes a receptacle which is delimited by two guide sections and is open in the direction towards a front wheel of the motorized bicycle. The free ends of the guide sections pointing in the direction of travel are arranged such that they are always at a distance from the front wheel during normal riding but, in the event of a front-end collision in which the front wheel impacts on an obstacle, the front wheel is pushed into the receptacle between the free ends of the guide portions towards the frame of the motorized bicycle.

Abstract: A motor vehicle stores a first one-way hash of a password and an encrypted value from a second one-way hash of the password. A method for authenticating a device with respect to the vehicle includes the following: a PACE procedure is carried out so that the device and the motor vehicle determine the same session key; the motor vehicle generates a communication key on the basis of the session key and the encrypted one-way hash; and the device generates the communication key based on the session key and the second one-way hash.

Abstract: A driver assistance system has an emergency stopping function for a motor vehicle. The driver assistance system is designed to perform an automated lane change from a first lane to a second lane when the emergency stopping function is triggered. The driver assistance system is further designed to determine at least one road characteristic and/or at least one vehicle interior characteristic and, based on the determined at least one road characteristic and/or the vehicle interior characteristic, to decide whether to execute the lane change.