Abstract: A hand-held power tool, in particular a grinder, for simultaneously driving a plurality of grinding plates includes a main housing, which accommodates at least one motor for driving the grinding plates. A handle housing forms a handle and protrudes substantially perpendicularly to the main housing, and in particular the handle housing accommodates a storage battery. The hand-held power tool includes a motor having a drive shaft, which defines a motor axis, a central wheel, which is driven by the motor and defines a central wheel axis, and a plurality of, in particular three, output shafts, which are driven by the central wheel and define respective output shaft axes. Each output shaft is provided for driving one grinding plate or at least one grinding plate receptacle, and the motor axis is arranged eccentrically to the central wheel axis between a front output shaft axis and the central wheel axis.

Abstract: A method for ascertaining at least one performance characteristic for the operation of an electrical energy store is described, comprising the steps of: a) receiving operating data, in particular current and/or voltage and/or temperature measured values, of a multiplicity of electrical energy stores, wherein the multiplicity of electrical energy stores satisfy a predefined criterion, for example a predefined number of operating hours; b) ascertaining at least one ageing state variable, in particular an electrical capacitance, of the multiplicity of electrical energy stores by evaluating the operating data of the multiplicity of electrical energy stores; c) ascertaining at least one performance characteristic for the operation of an electrical energy store, in particular a maximum charging current, on the basis of the at least one ageing state variable; d) transmitting the at least one performance characteristic to a further multiplicity of electrical energy stores.

Abstract: An electrochemical system includes a hydrogen diffusion barrier physically separating the system into a hydrogen rich zone and a hydrogen poor zone, an electronic component located in the hydrogen poor zone and exposed to hydrogen diffusing from the hydrogen rich zone, a hydrogen pump, located in the hydrogen rich zone and the hydrogen poor zone, including: a cathode, an anode, an electrolyte separating the cathode and the anode, an anode encapsulation contacting the anode and a portion of the electrolyte, and an external electrical circuit biased to drive H+ current from the anode to the cathode to pump hydrogen diffusing from the hydrogen rich zone into the hydrogen poor zone back into the hydrogen rich zone.

Abstract: An optical combination device for projecting an image onto an impingement region. The device includes at least a first and a second layer which are mutually spaced apart at a distance. The first layer has a shorter distance to the impingement region than the second layer. The first layer has at least two functional regions which are mutually spatially separate. The first and the second layers are formed to transmit a portion of the beam, which is incident on a first functional region, in the direction of the second layer, and to propagate the transmitted portion between the first and second layers at least partially along a direction of extent of the at least two layers, and to provide the at least partially propagated beam as outgoing beam in the direction of the impingement region via a second functional region of the first layer.

Abstract: A method for controlling a power brake system, for a motor vehicle engaged in piloted driving, which includes two electrically controllable actuator units. The first actuator unit includes a braking-intent detection device, and a first pressure generation unit for generating a brake pressure in a brake circuit. The second actuator unit includes a second pressure generation unit redundant to the first pressure generation unit. A first electronic control device acquires signals of the braking-intent detection device and controls the actuator unit based on the detected braking intent. In response to detected functional impairment, the first motor of the pressure generation unit ceases to be controlled, and the second motor of the pressure generation unit of the second actuator unit is controlled to generate brake pressure. Detection of a braking intent and wheel-specific modulation of the brake pressure, continue to be carried out, using devices of the first actuator unit.

Abstract: A method for operating an internal combustion engine based on a control of a supplied fresh air quantity, the method comprising the following steps: implementing an adjustment of a throttle valve for the control of the supplied fresh air quantity as a function of a setpoint mass flow via the throttle valve; determining the setpoint mass flow via the throttle valve according to a differential equation, which is a function of a control deviation ascertained as a function of a setpoint intake manifold pressure and an actual intake manifold pressure.

Abstract: A prechamber spark plug. The prechamber spark plug includes a housing and a cap, which is arranged at a combustion-chamber end of the prechamber spark plug. The cap has, on the combustion-chamber side, a recess in an outer side.

Abstract: Examples relate to a hydraulic control unit that includes a pump for increasing a hydraulic pressure of a brake fluid. The hydraulic control unit includes a discharge channel from which the brake fluid pressurized by a pump is discharged, a pulsation reducing unit disposed in the middle of the discharge channel, and a controller controlling the pump and the pulsation reducing unit. The pulsation reducing unit includes a valve housing, a fixed core fixed to the valve housing, a movable core received in the valve housing in an axially movable manner, a closing member interlocking with the movable core and closing the discharge channel, a coil disposed in a manner to surround the valve housing and the fixed core, and an inflow chamber formed by the valve housing and one end surface of the movable core, into which the brake fluid flows, and whose volume can vary.

Abstract: A computer-implemented method includes receiving one or more word embedding vectors in response to data indicative of one or more words. The method also includes utilizing a first recurrent neural network, outputting one or more intent representation vectors utilizing the one or more word embedding vectors; utilizing a second recurrent neural network, outputting one or more slot representation vectors utilizing the one or more intent representation vectors and the one or more word embedding vectors; and utilizing at least an additional third recurrent neural network and a fourth recurrent neural network, outputting a sentence intent and a slot label based on the one or more word embedding vectors, the one or more intent representation vectors, or the one or more slot representation vectors from either the first or second recurrent neural network.

Abstract: To provide a brake hydraulic pressure control apparatus capable of simplifying a measure against NVH and downsizing an outer shape of the apparatus. The brake hydraulic pressure control apparatus that controls a hydraulic pressure in each of plural systems of hydraulic circuits includes: a pressure supply unit that includes a motor and a pump element; and a hydraulic block that includes an oil channel connected to the pressure supply unit and control valves regulating the hydraulic pressure of each of the plural systems of the hydraulic circuits. The pressure supply unit includes: the motor including a stator and a rotor; a swash plate arranged to be tilted with respect to an axial direction of a rotation axis of the rotor; and the pump element having plural pump sections driven by rotation of the motor. At least a part of the pump element is arranged in the rotor.

Abstract: A method teaches a control function, preferably a characteristic curve, of a hydrostatic motor of a traction drive of a work machine when in drive mode. The traction drive is provided with the hydrostatic motor and a hydrostatic pump, which is hydraulically connected to the hydrostatic motor. The method includes setting a pivot angle of the hydrostatic motor while taking into account a desired velocity of the work machine when in the drive mode, and checking whether predefined conditions are met. If the predefined conditions are met and a current velocity differs from the desired velocity, the method includes correcting the control function of the hydrostatic motor by taking into account a difference between the desired velocity and the current velocity. At least one value of the corrected control function of the hydrostatic motor is taught during the correcting.

Abstract: A system and computer-implemented method for training a machine learnable model to estimate a relative scale of objects in an image. A feature extractor and a scale estimator comprising a machine learnable model part are provided. The feature extractor may be pretrained, while the scale estimator may be trained by the system and method to transform feature maps generated by the feature extractor into relative scale estimates of objects. For that purpose, the scale estimator may be trained on training data in a specific yet non-supervised manner which may not require scale labels. During inference, the scale estimator may be applied to several image patches of an image. The resulting patch-level scale estimates may be combined into a scene geometry map which may be indicative of a geometry of a scene depicted in the image.

Abstract: The disclosure relates to a method for adaptively fast-charging a battery pack using a battery charging device. At least one voltage and the temperature of the battery pack are continuously or periodically detected by means of a detection unit. A charging current of the battery charging device is adapted by means of a control and/or regulating unit of the battery charging device on the basis of the detected voltage and/or the detected temperature of the battery pack. At least one battery-specific threshold of the voltage and/or the temperature is taken into consideration in order to adapt the charging current by means of the control and/or regulating unit. Prior to starting the charging process, the battery-specific threshold of the voltage and/or the temperature is transmitted from a memory unit of the battery pack and/or the battery charging device to the control and/or regulating unit by means of a communication unit.

Abstract: A method for autonomous navigation of a movable robotic unit, in particular at least as part of a SLAM method. A plurality of virtual points from the surroundings around the detection unit is detected using a detection unit. An optimization problem of graph theory is solved using a control and/or regulation unit for ascertaining a position and/or a movement of the robotic unit and/or for detecting the surroundings as a function of the detected virtual points. At least one virtual plane is ascertained, using the control and/or regulation unit, as a function of at least one group of virtual points of the plurality of virtual points. For ascertaining a position and/or a movement of the robotic unit and/or for representing the surroundings, the ascertained virtual plane is used for solving the optimization problem of graph theory using the control and/or regulation unit.

Abstract: The disclosure relates to a method for detecting work progress of a handheld power tool, the handheld power tool having an electric motor, and the method comprising the steps of: S1 providing at least one model signal form, the model signal form being assignable to the work progress of the handheld power tool; S2 determining a signal of an operating parameter of the electric motor; S3 comparing the signal of the operating parameter with the model signal form and determining a conformity evaluation from the comparison; S4 recognizing the work progress to at least some extent using the conformity evaluation determined in method step S3. Further disclosed is a handheld power tool, more specifically an impact driver, comprising an electric motor and a control unit, the control unit being designed to carry out a method according to the disclosure.

Abstract: A reciprocating saw blade for a machine tool, in particular a jigsaw blade, includes a first row of saw teeth and a second row of saw teeth. The first and second rows of saw teeth are arranged at an angle to a longitudinal axis of the reciprocating saw blade. The angle of the first row of saw teeth opposes the angle of the second row of saw teeth. The reciprocating saw blade also includes a further row of saw teeth arranged between the first and second rows of saw teeth. The further row of saw teeth is set back, in particular suddenly set back, towards the longitudinal axis in relation to the first and second rows of saw teeth.

Abstract: The invention relates to an ignition device (1) for an internal combustion engine, more particularly for a hydrogen-fueled internal combustion engine, comprising a primary circuit (2.1) and a secondary circuit (2.2), wherein—the primary circuit (2.1) has a primary coil (3), wherein—the secondary circuit (2.2) has a secondary coil (4) inductively coupled to the primary coil (3), a diode (5) for suppressing a start-up spark, and a high-voltage connector (6) for connection to a spark plug (7), characterized in that a parallel path (10) is formed electrically in parallel to the diode (5) of the secondary circuit (2.2), in which parallel path there is arranged an ohmic load resistor (11) or an electric switch (20) and by means of which parallel path residual energy, in particular residual voltage, which remains in the secondary circuit (2.2) following discharge of the ignition device (1), can be extinguished, in particular by feeding the residual energy in the secondary circuit (2.

Abstract: A measuring device for a fastening device includes a base body, a sensor unit configured to detect at least one fastening variable, and an interface connected to the sensor unit and configured to provide the detected at least one fastening variable to an external reading device. The interface is electrically connectable to a wireless communication unit or directly connectable to the external reading device.