Abstract: A drive includes an electric motor, a converter, and an intermediate part arranged between the electric motor and the converter. A bottom part is connected to the intermediate part in a thermally conductive manner, a top part set apart from the intermediate part is connected to the bottom part in a thermally conductive manner, and the top part has cooling fins.

Abstract: In a part having a rotationally symmetric region and a machining surface, and a method for manufacturing the part from a blank, the machining surface is finished in a planar manner. The normal direction of the machining surface is oriented parallelly to the axis of symmetry, e.g., an axis of rotation, of the rotationally symmetric region. The part includes an annular groove that extends around in a circumferential direction, e.g., with respect to the axis of symmetry. In a circumferential angular region covered by the machining surface, the annular groove is incomplete, e.g., removed down to the groove base of the annular groove, and in a circumferential angular region not covered by the machining surface, the annular groove is complete, e.g., the machining surface bordering on the annular groove and/or leading into the annular groove.

Abstract: In a method for providing a voltage for a load, e.g., for an inductor and/or coil of an electromagnetically actuable brake, e.g., of an electric motor, and device for carrying out the method, e.g., in a manner repeated over time, the positive half-wave of an, e.g., single-phase AC voltage is provided to the load in a pulse—with modulated manner starting from a first phase angle of the AC voltage, and in an unmodulated manner, e.g., and/or uncontrolled manner and/or directly, starting from a second phase angle.

Abstract: In a rail system with a rail and mobile parts movable along the rail, e.g., rail vehicles, a profiled part is arranged on the rail and includes a cavity, which, e.g., terminates at an opening into the environment. Regions of a mobile part, e.g., regions of each mobile part, at least partially project into the cavity, and at least one transmitter and receiver are situated in the respective region.

Abstract: A system includes an optical waveguide, provided as a component of a first part, and at least one sensor system, provided as a component of a second part. The second part is movable relative to the first part, and the optical waveguide radiates light laterally on the side. The sensor system detects the light intensity of the laterally emitted light emitted by the optical waveguide. A grating is provided between the sensor system and the optical waveguide.

Abstract: An electrical appliance that can be fastened to a support element, in particular a wall, includes a heat sink, circuit boards, and a housing. The circuit boards are fastened to the heat sink in each case and the heat sink is able to be fastened or is fastened to the support element. The housing surrounds the circuit boards and is fastened to the heat sink.

Abstract: A brake assembly for an electric motor includes: a brake pad plate, a driver, and a shaft. The driver includes an inner driver part and an outer driver part, which are connected to one another by an intermediate layer, the brake pad plate having an inner tooth system, which meshes with an outer tooth system of the outer driver part so that the brake pad plate is connected to the driver in a torsionally fixed but axially displaceable manner, the inner driver part being connected to the shaft in a torsionally fixed manner.

Abstract: An electric motor includes a stator housing arranged as a composite part and/or having a tubular part onto which a tube is fitted, the tubular part being force-locked to the tube.

Abstract: In a method for operating a drive system having a plurality of inverters, a respective electric motor is fed from the AC-side terminal of the respective inverter, the DC-side terminals of the respective inverters are connected in parallel with one another and this parallel connection is connected to the DC-side terminal of a rectifier, each inverter has semiconductor switches driven according to a respective pulse width modulation, the inverters are arranged as bus subscribers of a data bus to which a module designed as master is also connected, and the master assigns the bus addresses to the inverters and thereafter to each inverter the polarity of its pulse width modulation.

Abstract: In a gear unit that includes a rotatably mounted toothed part and a method for manufacturing a gear unit that includes a toothed part, the toothed part has bearing seats and a toothing, and the toothed part, e.g., together with the toothing, is produced from sintered metal powder. The toothed part is, for example, arranged as one piece, e.g., in an integral fashion.

Abstract: A gearbox includes a housing, which has a lower housing part onto which an upper housing part is placed. The lower housing part and the upper housing part are in physical contact along a contact surface, for example, so that the contact surface between the lower and upper housing part lies in a plane and/or is planar. Cooling fins are situated on the housing, the cooling fins having a curved characteristic such that a portion of an axially directed airflow streaming along the housing, and thus in particular an airflow that is streaming parallel to the axis of rotation of the input shaft, is deflected in a transverse direction between two cooling fins disposed closest to each other in the axial direction in each case, the axial direction, for example, being parallel to the contact surface, e.g., the plane.

Abstract: A communication module for a system for transferring data by light beams includes a transmitter for emitting a light beam in which data to be transferred are encoded, and a receiver for receiving a light beam. The transmitter includes a light source, and the receiver includes a light sensor. The transmitter and receiver are disposed offset from each other in a vertical direction. The transmitter emits a light beam in a longitudinal direction. The receiver has a mirror, which can be pivoted about a pivot axis extending in the vertical direction between a folded-out position and a folded-in position. The mirror is disposed such that a light beam incident from the longitudinal direction is deflected toward the light sensor by the mirror in the folded-out position. A system for transferring data by light beams includes at least one first communication module and at least one second communication module.

Abstract: An electric motor includes an angular position sensor, a housing part, a bearing, e.g., a floating bearing, and a rotor shaft. A bearing seat is provided on the housing part, in which bearing seat the bearing, e.g., the outer ring of the bearing, is received. The inner ring of the bearing is arranged on the rotor shaft and is fixed in the axial direction on the rotor shaft. The angular position sensor includes a first printed circuit board, and a spring element supported on the housing part presses onto the first printed circuit board. At least one tongue region of a part connected to the first printed circuit board bears against the outer ring.

Abstract: An EtherCAT bus system includes an EtherCAT master, EtherCAT nodes, and an EtherCAT star hub arranged and/or assembled on the same printed circuit board with the EtherCAT master.

Abstract: In a method for operating an electric vehicle, including an electrical drive device for driving the vehicle, a control device for controlling the driving of the vehicle, a first energy storage device for supplying the control device with a first DC voltage, a second energy storage device for supplying the drive device with a second DC voltage, and an energy supply unit providing an output DC voltage, the first energy storage device is connected to the energy supply unit via a converter device, the second energy storage device is connected to the energy supply unit, the converter device converts the output DC voltage into the first DC voltage, a first power flow from the first energy storage device to the second energy storage device is prevented and a second power flow from the second energy storage device to the first energy storage device is prevented.

Abstract: A method for operating a drive train includes supplying a motor voltage to an electric motor by a converter for achieving a torque setpoint value, determining an angular velocity actual value and an angular acceleration actual value from values of the angular position of the rotor, determining the torque setpoint value from a moment of inertia and an angular acceleration setpoint value, which is determined as an actuation variable, determining the moment of inertia as the sum of the moment of inertia of the drive train without a load and the moment of inertia of the load, and determining the moment of inertia of the load from a torque actual value and from the angular acceleration actual value.

Abstract: In a transporting system for transporting a container, and a method for operating a production installation having a transporting system, the transporting system has a vehicle and a transport vehicle, on whose frame two wheel drives are disposed, which are set apart from each other and have a wheel in each case, in particular, the two wheels are disposed so as to touch a floor in order to generate traction force for the transport vehicle, in particular, the wheel axles of the two wheels are aligned parallel to each other. A first and a second shoulder part are situated and/or provided on the frame, and the first shoulder part is situated at a distance from the second shoulder part, and a space region is situated between the wheel drives and between the shoulder parts, into which the vehicle together with the container it accommodates is able to be driven and out of which the vehicle together with the container may be driven.

Abstract: A gear unit includes a shaft and a housing part. A bearing is received in the housing part, and a flange part is connected to the housing part. The flange part is sealed from the shaft using a first and a second labyrinth seal, and the first labyrinth seal is axially spaced apart from the second labyrinth seal. The shaft has an elevation that is arranged axially, e.g., in the axial direction, between the first labyrinth seal and the second labyrinth seal.

Abstract: In a method for calibrating a laser scanner of a vehicle by at least one reflection unit for reflecting a laser beam of the laser scanner, the at least one reflection unit including a first plate, a second plate, and a screen, the first plate being arranged between the second plate and the screen in a beam direction, the first plate having a first reflection surface, the second plate having a second reflection surface, the screen having a third reflection surface, a gap that extends in the vertical direction and in a transverse direction being formed between the first plate and the second plate, and a projection of the gap in the beam direction being incident on the third reflection surface, an alignment of the laser scanner being checked by a laser beam of the laser scanner being directed at the at least one reflection unit and the laser beam being moved in the transverse direction along the at least one reflection unit, and, for a plurality of positions of the laser beam in the transverse direction, a respe