Abstract: A method for enriching data in measurement data records of a low-voltage network, wherein a measurement data record contains at least one measured value and an item of structureless information relating to the network node from which the data record comes, such that meanings can be at least partially assigned to measurement data without the assistance of people, where arriving measurement data records, in particular asynchronously arriving measurement data records, from a plurality of network nodes is stored in a data memory in a time sequence for each network node, time sequences are subjected to a mathematical analysis via automatic data processing, and the result of the analysis is added to a measurement data record as at least one semantic comment.

Abstract: A power supply unit with galvanic isolation for converting an input-side alternating or direct voltage into an output-side direct voltage in a clocked manner, includes a first primary circuit that has a series circuit consisting of a primary coil of a transformer and a first switch element and a first control circuit, at least one secondary circuit that has a secondary coil of the transformer and a smoothing capacitor that is parallel to an output direct voltage of the secondary circuit, a second primary circuit that has a series circuit consisting of a part of the primary coil and a second switch element for pulse length modulation of the voltage at the part of the primary coil, and a voltage evaluator that switches either the first or the second switch element for the next switching cycle depending on the level of the input voltage in order to obviate PFC circuits or a voltage multiplication.

Abstract: A method for determining system reliability of a logic circuit, wherein a functional component model for design/simulation of a circuit model of the logic circuit is created, where functional components model are expanded by adding an associated power model, a temperature model, and a reliability, where the logic circuit is constructed with expanded model components and, based on simulation of the logic circuit aided by the constructed circuit model, a functional, a power-dependent, and a temperature-dependent behavior and a temperature-dependent failure rate are derived for each component in a component specific manner for a specified application case, and where in addition to the functional behavior, a power and temperature behavior and a total failure rate can be determined simply and dynamically, based on the derived data and dependent on temperature and simulation time for the logic circuit for the specified application case.

Abstract: A circuit arrangement and method for temporally limiting and separating access between at least one master unit and at least one slave unit via a network-on-a-chip bus system in a system-on-a-chip, wherein the access between the at least one master and slave units is implemented via communication paths defined by bus interfaces, where within the circuit arrangement, the network-on-a-chip bus system is expanded by an adaptation unit that includes an access manager and a complementary logic for the bus interfaces, where the adaptation unit and the bus interfaces are then controlled by the access manager via the complementary logic using a communication plan such that access between the master and slave units via the communication paths specified by bus interfaces is performed in accordance with the temporal requirements of the communication plan so that time-controlled systems can be implemented simply using commercially obtainable standard bus systems.

Abstract: A method for protecting an integrated circuit against unauthorized access to key registers, wherein functions and/or applications of the integrated circuit are unlocked and/or activated via data stored in key registers, such as during the start-up of the integrated circuit and/or during ongoing operation, where if such a key register is accessed, the data word used to perform the access is compared with specified key data, and if access via a data word deviating from the specified key data is detected, the access is marked as unauthorized, the access marked as unauthorized is then recorded and evaluated, and after the analysis, appropriate protective measures are triggered to prevent further unauthorized access such that a key register method for protecting sensitive data is expanded in a simple manner and hacker attacks are quickly detected and thwarted.

Abstract: A device for detecting obstacles for a rail vehicle includes a pilot bar, which is retained on the bogie frame of the rail vehicle in front of the wheelset that is positioned first in the direction of travel via a mounting retainer, wherein the mounting retainer is formed by vertically arranged spring elements, in particular leaf springs, where each leaf spring is fastened at an upper end to the bogie frame and at a lower end to the pilot bar, where each leaf spring includes a stress-strain converter which is arranged between the upper end and the lower end on a broad surface of a leaf spring, and where each stress-strain converter is connected to an on-board evaluator via a signal-conducting connection.

Abstract: A spring lock for a secondary spring that is arranged between the car body and the under frame of a rail vehicle. A spring locking element is provided which in the mounted state is supported on the car body and projects through a cutout and is connected to the secondary spring in such a way that it is prevented from extending. This facilitates the mounting of anti-wear washers under the secondary spring to a considerable degree.

Abstract: A bogie frame for a rail vehicle that includes two longitudinal supports formed as open and closed hollow profiles, and at least one transverse support, wherein the hollow profile of the longitudinal support is formed by wall elements having a defined thickness, wherein in order to reduce the weight of bogie frames in comparison to conventional bogies frames and to save on production costs, the longitudinal supports, in the region at which the at least one transverse support engages, is respectively provided in a wall element with at least one area having a reduced thickness.

Abstract: A circuit arrangement and method for securing an integrated electronic circuit against scans of an address space, wherein the circuit arrangement has at least one master unit and at least one slave unit interconnected via a bus system for access of the master unit to the slave unit, and addresses are used from an address space that is allocated and used in accordance with functionalities of the integrated electronic circuit, where a defense slave unit is connected to the bus system, access to unused address regions of the address space are forwarded to the defense slave unit, the access is analyzed and evaluated by the defense slave unit and depending on an analysis result and the respective access type, defensive measures are triggered, such that address space scans are interrupted or a potential scan result is rendered useless in a simple manner.

Abstract: A method for enriching data in measurement data records of a low-voltage network, wherein a measurement data record contains at least one measured value and an item of structureless information relating to the network node from which the data record comes, such that meanings can be at least partially assigned to measurement data without the assistance of people, where arriving measurement data records, in particular asynchronously arriving measurement data records, from a plurality of network nodes is stored in a data memory in a time sequence for each network node, time sequences are subjected to a mathematical analysis via automatic data processing, and the result of the analysis is added to a measurement data record as at least one semantic comment.

Abstract: A circuit arrangement for compensation of a DC component in a transformer, wherein the transformer includes a winding arrangement connected via connecting lines to a power system for transporting electrical energy, and includes a neutral point connected to earth, where the circuit arrangement includes a transductor circuit arranged in a current path that connects a connection point situated on a node-free portion of the connection line to earth, a control and regulation device that controls the transductor circuit via a control signal and to which is fed, on the input side, a signal provided by a detection device with respect to a size and direction of the DC component to be compensated.

Abstract: A rail wheel having a wheel-mounted brake disk fastened to the wheel body of the rail wheel by multiple fastening elements distributed across the wheel circumference and seated against the wheel body within this fastening region, where the wheel-mounted brake disk is seated against the wheel body in at least one radial area radially outside the fastening region in the cold state and is spaced apart from the wheel body in the region radially within the fastening region to reduce stress on the fastening elements after braking has been initiated.

Abstract: A chassis for rail vehicles, particularly with inside-supported wheelsets, wherein the drive unit is elastically supported transversely to the travel direction via spring devices within the chassis frame, where the vibrational behavior is optimized and the space available for the drive unit is enlarged because the spring devices are supported directly on the housing of the bearing of the wheelset.

Abstract: A rail vehicle including at least one deformation zone arranged at each end side, where the deformation zone has a collision frame, a multiplicity of deformation elements and two A pillars, where the deformation elements are oriented radially about the front structure of the wagon body and are respectively connected at one of their ends to the wagon body, and where the collision frame connects the ends, facing away from the wagon body, of the deformation elements and is arranged about the front structure of the wagon body in an arcuate manner, and where the two A pillars each extend between the wagon body and the collision frame and are permanently connected to the collision frame.

Abstract: A solid wheel for a rail vehicle includes a wheel rim arranged on the circumference of the solid wheel, a tread and a hub for a wheelset shaft, wherein the wheel rim is connected to the hub via an end wall and a rear wall, where the hub is arranged at the center of the solid wheel and includes a longitudinal axis such that a high radial and axial strength of the wheel flange as the basis for a low sound emission is provided by virtue of the solid wheel forming a cavity that is delimited by the end wall and the rear wall, where the end wall and the rear wall transition into each other below the wheel flange in an arched manner, and the end wall has first openings and the rear wall has second openings in order to open the cavity outwards in a spoked manner.

Abstract: A rail vehicle includes a concealed undercarriage, particularly a bogie, wherein the covering or fairing comprises at least side elements that are arranged along the rail vehicle on the sides of the undercarriage and a bottom element that is arranged on the underside of the undercarriage, where the side elements are fixedly connected to the carriage body of the rail vehicle, the bottom element is fixedly connected to the undercarriage, and a gap is provided between the bottom element on one side and the side elements on the other side, and where the gap provides a distance between the wheels of the undercarriage and the bottom element on one side and the side elements on the other side, both in the fully turned and in the partially turned state of the undercarriage.

Abstract: A carrying structure of a rail vehicle upon which a carriage body is supported by coupling elements, where at least one coupling element is connected to the carrying structure via a positive and/or non-positive connection, and where at least a part of the carrying structure below or above the connection or at least one surface upwardly delimiting the coupling element is configured as a supporting element such that the coupling element can be attached at any desired location on the rail vehicle with little effort.

Abstract: A wheelset guide for a rail vehicle, which has a bogie frame. Includes at least one longitudinal support, and includes a wheelset bearing for a wheelset of the rail vehicle, wherein the wheelset bearing is connected to the bogie frame and includes a rocker that is pivotably attached to the bogie frame via an elastic rocker bearing, and a pin guided by the rocker bearing, where the bogie frame forms a receptacle for the rocker bearing, which is configured such that the force is introduced into the bogie frame via the rocker hearing itself, and the rocker bearing is positioned in the receptacle in order to improve the strength and stability of the attachment of the rocker to the bogie frame or to the longitudinal support with an open profile.

Abstract: A rail vehicle for transporting people, which is in the form of an articulated train-type multiple unit, includes at least two car bodies. Adjoining car bodies are supported on a common central running gear and end car bodies are additionally supported on end running gears. All of the running gears have a distance between the centers of the bogies of two adjoining running gears of from 18 to 21 m, and the end car bodies have a length of from 24 to 27 m.

Abstract: A wheelset bearing for the wheelset of a rail vehicle having an internally mounted truck that includes one bearing housing per side of the wheelset that encloses the wheelset bearing for the wheelset, where the wheelset bearing and bearing housing are within the wheels in an installed state and a torsion spring serves as a roll stabilizer that is connected to the bearing housing such that the torsion springs are rigidly connected to one bearing housing each on the two ends thereof (without interconnection of draw-pressure rods) so as to implement roll stabilization for the wheelsets in a manner that is as technically simple as possible.