Abstract: Systems and methods employing machine learning processes to detect objects within images are provided. In some examples, a first trained machine learning model, such as a trained neural network, identifies regions in image data that contain one or more features of interest. During this classification process, the first trained machine learning model divides the input data into smaller sized regions, and processes the regions to identify whether one or more features of one or more classes are present in each region. The first trained machine learning model generates output data characterizing the regions with features. A second trained machine learning model, such as an object detector or pixel segmentation network, receives the output data from the first trained machine learning model. The second trained machine learning model processes the image data to detect features only within the regions identified by the received output data.

Abstract: A battery for an at least partially electrically operated functional device, including at least one battery cell module, in each of which a predetermined number of battery cells is clamped by a mechanical clamping device to form a cell stack. The clamping device transmits a traction force or a contact pressure corresponding to the traction force to the cell stack by delimiting elements and traction elements. A frame element is arranged in each case between at least two or some or each of the battery cells and/or the respective terminal battery cell and the delimiting element is arranged adjacent to the respective terminal battery cell and associated with it. The frame element includes a circumferential part and a free volume delimited by the circumferential part.

Abstract: A method of forming a solder connection between a carrier and a component includes a) printing an electrically conductive layer containing metal particles on a surface of the carrier by a printing process, b) printing a solder onto the electrically conductive layer by a printing process, c) arranging the component on the carrier so that the component is in direct contact with the solder, and d) melting the solder and then solidifying the solder to form the solder connection, wherein e) prior to printing the solder, the metal particles of the electrically conductive layer are coated with a precious metal coating, and f) a solder mediator agent including a precious metal salt or a precious metal oxide from which a precious metal is released to form the precious metal coating is applied onto the electrically conductive layer by a printing process.

Abstract: The invention relates to an electric machine, in particular a commutator machine (10), the carbon brushes (14) of which cooperate with a commutator (13) to supply the rotor with current, the carbon brushes (14) being continuously provided or provided in layer sections with different additives such as scouring material, lubricants or similar. To achieve a longer service life for the carbon brushes (14), a maximum of half, preferably less than half of all the carbon brushes (14) of the machine have a significant fraction of an additive, said fraction differing from that of the other carbon brushes (14).

Abstract: An electric drive machine having a stator and a rotor, the rotor carrying a rotor winding, in slots, which is able to be supplied with electric current by a power supply system made up of a commutator and sliding contacts, the sliding contacts pressing on the surface of the commutator having at least two pairs each made up of one positive sliding contact and one negative sliding contact, and in the case of at least one first pair of a positive sliding contact and a negative sliding contact, the positive sliding contact and the negative sliding contact being opposed at an angle ?, which deviates from 180°.

Abstract: An electric machine has at least two pairs of carbon brushes made up of one plus and one minus carbon brush, which interact with a commutator in order to supply current to the rotor, the carbon brushes being mounted with their brush holder on a brush plate via a mount, and the mounts on the brush plate lying across from each other at 180°. The holding part on at least one brush holder is offset from the center, in particular from the axis of symmetry of the brush holder, by an angle relative to the rotor axis so as to realize an asymmetrical placement of the carbon brush, the holding part on the other brush holders being disposed on their axes of symmetry.

Abstract: A multilayer brush, which essentially contains a composite having a graphite component and having a copper component, and a layered structure, a first layer being furnished with a high copper component and a further layer being furnished with a comparatively low copper component. It is provided that the copper component of the first layer in comparison with the copper component of the second layer corresponds to a ratio of ?3/2.

Abstract: The invention relates to a method for producing a carbon brush in a commutator for transmitting current in an electric motor, wherein the carbon brush is subjected to an artificial aging process after being produced and prior to being installed in the commutator, wherein the carbon brush is stored at an increased temperature for a defined period of time.

Abstract: A commutator for transmitting current in an electric machine is disclosed. The commutator includes an armature-side collector and at least one brush contacting the collector. At least one current-carrying component of the commutator is implemented as porous ceramic body having infiltrated metal.

Abstract: The invention relates to an electric motor comprising an electric conductor for supplying current, connected to a contact piece which is in contact with a component of the electric motor. Said conductor has, in a central section, a rectangular cross-section.

Abstract: A method for the production of press-hardened components, in particular a vehicle body component, from a semifinished product (2) made of unhardened, hot-workable steel sheet. A component blank (10) is formed from the semifinished product (2), pre-coated with a first coating (33), by a cold-forming method, in particular a drawing method. The component blank (10) is trimmed at the margins to a marginal contour (12?) approximately corresponding to the component (1) to be produced. The trimmed component blank (17) is heated and press-hardened in a hot-forming tool (23); then the press-hardened component blank (18) is covered with a second, anticorrosion coating (34) in a coating step.

Abstract: A brush device for an electric machine is described, having a brush mount that has a brush which is accommodated in it and having a first integrated litz wire, having a first spring, which prestresses the brush against a commutator. In order to create an E machine having an improved service life, at least one second litz wire is developed integrated into the brush.

Abstract: An electric machine has at least two pairs of carbon brushes made up of one plus and one minus carbon brush, which interact with a commutator in order to supply current to the rotor, the carbon brushes being mounted with their brush holder on a brush plate via a mount, and the mounts on the brush plate lying across from each other at 180°. The holding part on at least one brush holder is offset from the center, in particular from the axis of symmetry of the brush holder, by an angle relative to the rotor axis so as to realize an asymmetrical placement of the carbon brush, the holding part on the other brush holders being disposed on their axes of symmetry.

Abstract: A brush device for an electric machine includes a brush holder, a brush which is accommodated therein and has an integrated stranded wire, and a first spring which prestresses the brush with respect to a commutator. At least one second spring is disposed parallel to the first spring, which prestresses the brush with respect to the commutator.

Abstract: The invention relates to an electric machine, in particular a commutator machine (10), the carbon brushes (14) of which cooperate with a commutator (13) to supply the rotor with current, the carbon brushes (14) being continuously provided or provided in layer sections with different additives such as scouring material, lubricants or similar. To achieve a longer service life for the carbon brushes (14), a maximum of half, preferably less than half of all the carbon brushes (14) of the machine have a significant fraction of an additive, said fraction differing from that of the other carbon brushes (14).

Abstract: An electric drive machine having a stator and a rotor, the rotor carrying a rotor winding, in slots, which is able to be supplied with electric current by a power supply system made up of a commutator and sliding contacts, the sliding contacts pressing on the surface of the commutator having at least two pairs each made up of one positive sliding contact and one negative sliding contact, and in the case of at least one first pair of a positive sliding contact and a negative sliding contact, the positive sliding contact and the negative sliding contact being opposed at an angle ?, which deviates from 180°.

Abstract: A multilayer brush, which essentially contains a composite having a graphite component and having a copper component, and a layered structure, a first layer being furnished with a high copper component and a further layer being furnished with a comparatively low copper component. It is provided that the copper component of the first layer in comparison with the copper component of the second layer corresponds to a ratio of ?3/2.

Abstract: A carbon brush system for an electrical machine, having at least two carbon brushes, which are situated axially adjacent to one another and cooperate with a rotatable countercontact system. The carbon brushes are implemented as directly or indirectly mutually axially supporting carbon brushes.

Abstract: Photo toners including a wax-like compound of the formula (I), detailed in the specification. In formula (I), R1 represents the group —CH2—O—CO—R3 or CH(OH)—CH2—O—CO—R3, R2 represents an alkyl radical comprising between 1 and 4 C atoms or halogen, R3 represents an unbranched alkyl radical comprising between 16 and 36 C atoms, m is 1, 2 or 3, and n is between 0 and (6?m).

Abstract: A method for the production of press-hardened components, in particular a vehicle body component, from a semifinished product (2) made of unhardened, hot-workable steel sheet. A component blank (10) is formed from the semifinished product (2), pre-coated with a first coating (33), by a cold-forming method, in particular a drawing method. The component blank (10) is trimmed at the margins to a marginal contour (12?) approximately corresponding to the component (1) to be produced. The trimmed component blank (17) is heated and press-hardened in a hot-forming tool (23); then the press-hardened component blank (18) is covered with a second, anticorrosion coating (34) in a coating step.