Abstract: Element simulation is described using a machine learning system parallelized across a plurality of processors. A multi-element system is partitioned into a plurality of partitions, each partition including a subset of real elements included within the partition and ghost elements outside the partition influencing the real elements. For each processor of the plurality of processors, force vectors are predicted for the real elements within the multi-element system by making a backward pass through a graph neural network (GNN) having multiple layers and parallelized across multiple processors, the predicting including adjusting neighbor distance separately for each of the multiple layers of the GNN. A physical phenomenon is described based on the force vectors.

Abstract: A safety latch system includes a mount, a pawl member, a ratchet member, and a release assembly. The mount is mountable on a housing of a piston. The pawl member is coupled to the mount. The pawl member includes a pawl. The ratchet member has a first sidewall that includes a first connecting portion that is connectable to an end portion of a piston rod of the piston. The first sidewall includes a teeth portion, which is configured to engage with the pawl. The release assembly is configured to provide an engaged state between the pawl member and the ratchet member. The release assembly is also configured to provide a disengaged state between the pawl member and the ratchet member.

Abstract: A method (200) for operating an exhaust gas system (120) that includes a first catalytic converter (122) and at least one second catalytic converter (124), which are both arranged downstream from an internal combustion engine (110) The internal combustion engine (110) is controlled to generate a rich exhaust gas having a first rich gas portion, (220) a fill level of the second catalytic converter (124) is ascertained with respect to at least one lean gas component that is storable in the second catalytic converter and, if the ascertained fill level drops below (230) a minimum fill level, (240) the internal combustion engine (110) is controlled to generate a lean exhaust gas. The internal combustion engine (110) is then controlled to generate a rich exhaust gas having a second rich gas portion, and subsequently controlled (210) to generate the rich exhaust gas having the first rich gas portion.

Abstract: The invention relates to a fuel cell (110) comprising two gas diffusion layers (70), two electrode elements (10, 10?) and a membrane element (30). The membrane element (30) is arranged between the two gas diffusion layers (70), each electrode element (10, 10?) being embedded between a gas diffusion layer (70) and the membrane element (30). The membrane element (30) is in the form of an amorphous carbon layer.

Abstract: An electromechanical brake pressure generator including a threaded drive system. The system includes a rotatable spindle nut, a axially displaceable spindle cooperating with a thread of the spindle nut, and a hydraulic piston which at least partially radially surrounds the spindle and the spindle nut and is rotatably fixedly connected to the spindle and which carries out an axial piston stroke as a result of the rotation of the spindle nut. The system includes a housing which at least partially surrounds the hydraulic piston and forms a hydraulic cylinder, and an axial recess, in the hydraulic cylinder, which forms an anti-twist protection together with a torque support formed at the hydraulic piston and using which the hydraulic piston and the spindle are secured against twisting during a rotation of the spindle nut, the recess forming a sliding surface for the torque support of the hydraulic piston.

Abstract: A device and method for controlling a robotic device. The method includes: training a control model, which includes a parameter model and an object model, including: providing for each initial state-target state pair of a plurality of initial state-target state pairs a control state sequence, including states and transition states, each transition state being assigned a set of task parameters; ascertaining a set of state transition-state-state transition triples, and for each: adapting the parameter model so that the parameter model ascertains a probability distribution for each task parameter from the set of task parameters, which is assigned to the state transition following the state, adapting the object model so that the object model ascertains for each object a probability distribution for the state of the object; and controlling the robotic device with the control model using the trained parameter model and the trained object model.

Abstract: A method is for operating a vehicle. The vehicle includes a steering system with at least one steering handle and at least one steering sensor operatively connected to the steering handle and configured to at least detect a driver intervention in an automated drive operating mode. In at least one faulty operating state, in which the vehicle is in the automated drive operating mode and a malfunction and/or a disturbance of the steering sensor is ascertained and/or a steering sensor signal of the steering sensor is ascertained, the steering sensor signal correlating in particular to the driver intervention, an interruption process is initiated in order to discontinue the automated drive operating mode. During the interruption process, at least one wheel steering angle characteristic variable of at least one vehicle wheel of the vehicle is ascertained and taken into consideration while discontinuing the automated drive operating mode.

Abstract: A method for producing a microoptoelectromechanical component and a corresponding microoptoelectromechanical component. The microoptoelectromechanical component is equipped with a base substrate comprising a cavity which is formed therein and is closed by a covering substrate, an optical waveguide on the covering substrate above the cavity, which optical waveguide comprises a sheathed waveguide core, an electrical contact element in the region of the surrounding covering substrate, wherein a contact pad formed by an electrically conductive polysilicon layer is arranged underneath the electrical contact element, wherein the optical waveguide and the covering substrate located thereunder are divided into a stationary portion and a deflectable portion, which can be docked to the stationary portion by electrically deflecting the corresponding portion of the covering wafer.

Abstract: A method and system for detecting and localizing a target audio event in an audio clip is disclosed. The method and system use utilizes a hierarchical approach in which a dilated convolutional neural network to detect the presence of the target audio event anywhere in an audio clip based on high level audio features. If the target audio event is detected somewhere in the audio clip, the method and system further utilizes a robust audio vector representation that encodes the inherent state of the audio as well as a learned relationship between state of the audio and the particular target audio event that was detected in the audio clip. A bi-directional long short term memory classifier is used to model long term dependencies and determine the boundaries in time of the target audio event within the audio clip based on the audio vector representations.

Abstract: A high-pressure fuel pump includes a drive shaft, and a vane pump and a plunger pump which are driven by the drive shaft. The vane pump is configured to supply pre-pressurized fuel to the plunger pump. The drive shaft includes a cam configured to drive a piston rod of the plunger pump such that the plunger pump alternately executes a fuel suction stroke and a fuel discharge stroke. The drive shaft further includes a shaft portion for driving a rotor of the vane pump. The vane pump is configured such that for each fuel suction stroke of the plunger pump the vane pump provides a fuel supply cycle that is advanced by a phase angle relative to the fuel suction stroke.

Abstract: The invention relates to a device for operating a voltage converter (1), in particular a DC converter, of a motor vehicle, which voltage converter has at least two parallel-connected converter strands (4, 5) which are connected between a high-voltage side (2) and a low voltage side (3) of the voltage converter (1) for converting the voltage, having at least one cooling device (8) carrying a coolant (9) and assigned to the converter strands (4, 5), wherein each of the converter strands (4, 5) is assigned at least one temperature sensor (6, 7), comprising the following steps: a) detecting an input voltage, an output voltage and an operating current of each converter strand (4, 5), b) detecting a current converter strand temperature by means of the respective temperature sensor (6, 7), c) determining a respective coolant temperature as a function of the values detected in steps a) and b), d) comparing the two determined coolant temperatures (T_1, T_2) with each other and e) determining the serviceability of the

Abstract: A method for controlling a motor vehicle remotely. The method includes: receiving requirement signals, which represent at least one requirement that is in force for a restricted geographic region and must be followed by motor vehicles; receiving navigation signals, which represent a route to be traveled by the motor vehicle; based on the navigation signals, checking if the at least one requirement is being followed by the motor vehicle; the checking including a check as to whether the route to be traveled by the motor vehicle violates the at least one requirement; generating remote control signals for controlling a lateral and/or longitudinal guidance of the motor vehicle remotely, based on a result of the check as to whether the at least one requirement is being followed by the motor vehicle; outputting the generated remote control signals. A device, a computer program and a machine-readable storage medium, are also described.

Abstract: An electrical circuit for testing primary internal signals of an ASIC. Only test pin is provided via which a selection can be made of a digital or analog signal to be observed. The electrical circuit includes a Schmitt trigger between the test pin and an output terminal of the electrical circuit. A test mode id activated when a switching threshold of the Schmitt trigger is exceeded. At least one sub-circuit is provided for the observation of a digital signal, having a resistor, an NMOS transistor, and an AND gate, at whose first input the digital signal is present. The resistor is between the test pin and the drain terminal of the NMOS transistor. The source terminal is connected to ground, and the gate terminal is connected to the output of the AND gate. The second input of the AND gate being connected to the output terminal of the electrical circuit.

Abstract: The invention relates to a pressure-controlled shut-off valve (1) for temporarily interrupting the air supply to a fuel cell stack in a fuel cell system, comprising a valve piston (3) which can be moved back and forth in a cylindrical housing bore (2) and which is biased in the direction of a seal seat (5) by the spring force of a spring (4), wherein a connection between an air inlet channel (6) and an air outlet channel (7) is produced or interrupted depending on the axial position of the valve piston (3). According to the invention, the valve piston (3) delimits a spring chamber (8), which receives the spring (4) and to which ambient pressure is applied, on one side and a control chamber (9), which is connected to the air inlet channel (7), on the other side within the housing bore (2). The invention additionally relates to a fuel cell system comprising a shut-off valve (1) according to the invention.

Abstract: An electrical consumer system includes an electrical consumer with a first mating interface and a first plurality of electrical contacts, and a removable battery pack including a second mating interface and a second plurality of electrical contacts, the second mating interface configured to removably mate with the first mating interface such that the second plurality of contacts contact the first plurality of contacts. At least one of the first and second mating interfaces includes a temperature sensor configured to detect at least one of a temperature of the at least one of the first and second mating interfaces, and a temperature of the first or second electrical contacts of the at least one of the first and second mating interfaces.

Abstract: A filter adaptor joins a canister filter to a hydraulic manifold block. The adaptor includes a hexagonal tool-receiving portion, an outflow passageway and one or more inflow passageways. The outlet flow passageway extends between opposed ends of the adaptor, and is used to direct filtered fluid from the filter to the manifold block. The inlet flow passageway(s) extend between the one end and a sealed region of the adaptor, and are used to direct fluid from the manifold block to the filter. The adaptor includes auxiliary ports formed in the tool-receiving portion that communicate with the inlet flow passageways and permit monitoring thereof.

Abstract: A system and method is disclosed having an end-to-end two-stage depth estimation deep learning framework that takes one spherical color image and estimate dense spherical depth maps. The contemplated framework may include a view synthesis (stage 1) and a multi-view stereo matching (stage 2). The combination of the two-stage process may provide the advantage of the geometric constraints from stereo matching to improve depth map quality, without the need of additional input data. It is also contemplated that a spherical warping layer may be used to integrate multiple spherical features volumes to one cost volume with uniformly sampled inverse depth for the multi-view spherical stereo matching stage. The two-stage spherical depth estimation system and method may be used in various applications including virtual reality, autonomous driving and robotics.

Abstract: A method for monitoring a gas sensor (14) which comprises two electrochemical measuring cells (20, 30) and which is arranged in an exhaust tract (10) of an internal combustion engine (11), wherein the sensor elements (20, 30) exhibit a substantially identical sensitivity towards a first gas component and a different sensitivity towards a second gas component and are insensitive towards further gas components. In an operating state in which an exhaust gas stream at the gas sensor (14) contains less of the second gas component than of the first gas component a concentration of the first gas component is calculated from each of the sensor signals from the sensor elements (20, 30) and a defect in a sensor element (20, 30) is deduced from the concentrations of the first gas component.

Abstract: A method for calibrating a structure-borne sound-sensitive acceleration sensor with the aid of at least one microphone. For this purpose, the acceleration sensor is situated in an intended position on the body of a user. Furthermore, at least one acceleration sensor signal and at least one microphone signal are detected, the at least one acceleration sensor signal and the at least one microphone signal being synchronized and having been caused by a vocalization of the user. A frequency analysis of the acceleration sensor signal and a frequency analysis of the microphone signal are carried out. A frequency-dependent correction function for correcting the transmission function of the acceleration sensor is ascertained on the basis of the frequency analyses of the acceleration sensor signal and the microphone signal.

Abstract: A method for calibrating a vehicle sensor of a motor vehicle. The method includes: ascertaining sensor data for a plurality of measuring points in time during a total measuring time period, the total measuring time period being subdivided into partial measuring time periods, and the motor vehicle moving relative to objects in surroundings of the motor vehicle; for each partial measuring time period, computing positions of the objects based on the ascertained sensor data; for each partial measuring time period, computing a partial measuring time period sinogram based on the computed positions; computing a total measuring time period sinogram by adding the partial measuring time period sinograms and correcting using a factor that is a function of the partial measuring time period sinograms; ascertaining an orientation of the vehicle sensor based on the total measuring time period sinogram; and calibrating the vehicle sensor based on the ascertained orientation.