Abstract: The invention relates to a method for producing a power module, comprising: providing an insulating substrate, composed of a first metal layer, a second metal layer, and an insulating layer placed between the first metal layer and second metal layer; formation of numerous contact wires located on a first side of the insulating substrate facing away from the second metal layer and on a second side of the insulating substrate facing away from the first metal layer; applying an electrically conductive layer to the first side, which comes in contact with numerous power switches, and applying a heatsink to the second side.

Abstract: A vehicle transmission has at least one lubrication point, a power take-off, a lubricant tapping point for a power take-off module, and a lubrication system for supplying the lubrication point(s) and the lubricant tapping point with lubricant. The lubrication system includes a lubricant reservoir, a main line section emerging from the lubricant reservoir, a first supply line section leading to the lubrication point(s), a second supply line section leading to the lubricant tapping point, and a return line section leading to the lubricant reservoir. A valve has a first valve port associated with the main line section, a second valve port associated with the lubricant tapping point, a third valve port associated with the return line section, and a bypass duct that acts between the first valve port and the second valve port. A vehicle with such a vehicle transmission and a working machine arrangement are also disclosed.

Abstract: A half-bridge power device includes a module substrate, the upper surface of which includes a first half-bridge area, a second half-bridge area, a first half-bridge lead-out area, and a second half-bridge lead-out area, which are separate, the first and second half-bridge lead-out areas being located at the ends of the module substrate. The first and second half-bridge power chips are connected to the first half-bridge area and the second half-bridge area, respectively. The first, second, and third power connector terminals are connected to the first and second half-bridge areas, and the first and second half-bridge power chips to form a power loop.

Abstract: A method for controlling a utility vehicle includes detecting, via a sensor, an elevation profile of a region located in front of the utility vehicle in the direction of travel. The method also includes initializing a grid comprising a plurality of grid cells. The grid extends at least in a longitudinal direction and in a vertical direction of the region. The method further includes assigning the detected elevation profile to associated grid cells by writing elevation profile data into grid cells and controlling the vehicle based on the elevation profile data.

Abstract: A shaft grounding arrangement (X) includes a housing (GG), a shaft (W, GW2, DS1, DS2) supported in the housing (GG), a shaft grounding device (E) for establishing an electrically conductive contact (SK) between the shaft (W, GW2, DS1, DS2) and the housing (GG), and a covering element (C) fixedly connected to the shaft (W, GW2, DS1, DS2) for protecting the shaft grounding device (E) against environmental influences. The covering element (C) at least partially surrounds the shaft grounding device (E). The shaft grounding device (E) is fixedly connected to the housing (GG). The electrically conductive contact (SK) is formed by a sliding contact between contact elements (EK) of the shaft grounding device (E) and a surface of the covering element (C). A transmission (G) may include the shaft grounding arrangement (X) of this type, and an electric axle drive (EA) may include the transmission (G).

Abstract: A tractor-trailer combination (10) includes a tractor machine (12), a trailer (14; 40; 50; 60; 70; and an inverter (30; 100, 102). The trailer (14; 40; 50; 60; 70; 90) comprises a driven axle (18; 42; 72, 74; 92, 94), a clutch (46; 54, 56; 78; 104, 106), and an electric traction motor (24; 96, 98). The traction motor (24; 96, 98) drives the respective wheels of the driven axle (18; 42; 72, 74; 92, 94) via the clutch (46; 54, 56; 78; 104, 106). The tractor machine (12) comprises an electrical energy source (26) for supplying the traction motor (24; 96, 98) via the inverter (30; 100, 102). In addition, the invention relates to a trailer (14; 40; 50; 60; 70; 90) for a tractor-trailer combination (10).

Abstract: A method for determining a semiconductor temperature Tj of a semiconductor element of a semiconductor module comprises ascertaining an estimated value of the semiconductor temperature Tj using an optimizable model of a thermal behavior of the semiconductor module, reading a measured value of the semiconductor temperature Tj, optimizing the optimizable model using the measured value, providing the estimated value of the semiconductor temperature Tj, if the measured value is not available, and the measured value if the measured value is available for the point in time, and repeating the steps of the method for further points in time.

Abstract: A gearwheel arrangement (1) for the quieter transmission of a mechanical rotary power, the gearwheel arrangement (1) having a first intermediate gearwheel (2) and a second intermediate gearwheel (3), where the first intermediate gearwheel (2) and the second intermediate gearwheel (3) can rotate together about a common rotation axis (10), where at least one of the intermediate gearwheels (2, 3) has helical teeth (14, 15), the intermediate gearwheels (2, 3) can move axially relative to one another to a limited extent, and at least one of the intermediate gearwheels (2, 3) is acted upon axially by a spring force. Also disclosed is an auxiliary power take-off module for a vehicle transmission having an input gearwheel (12) and a gearwheel arrangement (1) of the above type, and a vehicle transmission with an auxiliary output gearwheel (13) and a gearwheel arrangement (1) of the said type.

Abstract: A compressor arrangement for a fuel cell system, such as a vehicle fuel cell system, has at least one compressor stage configured to draw in a mass-flow of air, compress it, and deliver the compressed mass-flow. A compressor control system is configured to control the compressor stage, to be connected for signal exchange with a fuel cell control system, and to receive from the fuel cell control system control commands in the form of one or more reference variable signals. The reference variable signal contains a mass-flow target value signal, the compressor arrangement comprises a sensor arrangement with a mass-flow sensor for detecting the air mass-flow as a control variable. The compressor control system is connected for signal exchange with the sensor arrangement and is configured to generate a control signal for the compressor stage as a function of the control variable and the reference variable.

Abstract: Disclosed is a drive unit (10) with a housing (12), an electric motor (14) arranged in the housing with a rotor shaft (26). At least two oil chambers (30) are arranged in the housing (12). In each case the oil chambers include an oil zone (38) and an air zone (40) with an oil capture pocket (46). The oil chambers are flow-connected to one another via an overflow channel (42). Axial end areas of the rotor shaft (26) project into the oil chambers (30), and the rotor shaft defines a connecting channel (34) which flow-connects the oil chambers (30) to one another. A transmission is coupled to one axial end area or the rotor shaft (26) and an impulse disk (32) is coupled to the opposite axial end area, where each axial end area conveys oil to the respective oil capture pocket (46).

Abstract: A torsion absorber is provided for attachment to a cylindrical section of a shaft. The torsion absorber includes a flywheel and at least one tensioner. The at least one tensioner is configured to brace a first segment and a second segment of the flywheel against the cylindrical section of the shaft.

Abstract: A method for producing a base body of a valve housing for a hydraulic control valve includes machining a front-side section of a control edge into an unmachined base body for the base body with a cutting process in a front-side machining step. In the cutting process, a cutting tool is guided from a coupling side through a machining valve pocket to the front-side section of the control edge.

Abstract: A powershift transmission has a split group with a plurality of powershift stages and an input shaft that can be rotatably driven by a drive shaft of a motorized drive. The input shaft transmits in a stepped-up manner to an output shaft of the split group a rotational movement corresponding to a selected powershiftable stage transmission. A synchromesh transmission group has at least four gear stages and can be rotatably driven by the output shaft of the split group via an intermediate group located therebetween, and via the output shaft of the synchromesh transmission group an axle transmission of the motor vehicle can be rotatably driven. The intermediate group has first and second switching elements each having an output shaft that can be coupled by means of a switchable clutch to an idler. First and second output gears are arranged on the output shaft of the synchromesh transmission group.

Abstract: A method for driving a topological semiconductor switch for a power electronics system, wherein the topological semiconductor switch is split into at least two groups of power semiconductors, wherein, when an active short circuit is identified, switchover from the power semiconductor which conducts the short circuit first to the other power semiconductor takes place.

Abstract: A method of processing an image within a vehicle interior with a camera includes acquiring a live image of the vehicle interior. The live image is compared to an ideally aligned image of the vehicle interior having an associated region of interest to generate a homography matrix. The homography matrix is applied to the region of interest to generate a calibrated region of interest projected onto the live image for detecting an object therein.

Abstract: A method for operating a friction-locking shift element of a transmission of a motor vehicle includes actuating the friction-locking shift element for engagement according to a pressure versus torque characteristic curve. The pressure versus torque characteristic curve has a first characteristic point (a touch point) and a second characteristic point (a contact point), defines a first characteristic curve range between the touch point and the contact point having a first functional dependence, and defines a second characteristic curve range at or after the contact point having a second functional dependence. Once the touch point is reached, the friction-locking shift element begins to transmit torque mainly due to drag torques. Whereas, once the contact point is reached, the friction-locking shift element begins to transmit torque mainly due to friction between shift-element halves of the friction-locking shift element.

Abstract: An optical system includes a substrate. An image sensor is on the substrate. The image sensor has an image plane. A lens barrel defines a mechanical axis that intersects the image sensor and image plane. The lens barrel has a first coefficient of thermal expansion (CTE). A lens mount is integrally formed with the lens barrel. The lens mount is connected to the substrate. The lens mount has a second CTE. At least one lens element is in the lens barrel on the mechanical axis and defines an optical axis. A last powered optical surface of the at least one lens element is spaced along the optical axis from the image plane by a back focal length. At least one of the first and second CTEs limiting a change in the back focal length as a result of a change in temperature of the optical system.

Abstract: A drivable axle for a vehicle, in particular a rigid axle. The drivable axle has an axle body designed to accommodate an axle shaft and a receiving structure for receiving a vehicle element which is integrated into a drive-train of the vehicle. The receiving structure is connected to the axle body and is designed to receive a drive unit of the vehicle and has openings for connection to the axle shaft. The receiving structure has at least one fixing area for fixing the drive unit to the receiving structure.

Abstract: The disclosure relates to a printed circuit board arrangement with a printed circuit board with at least two current conducting layers. The current conducting layers extend in an axial direction of the printed circuit board and are arranged in succession in a thickness direction of the printed circuit board. The printed circuit board arrangement has a busbar which is arranged on a lateral surface of the printed circuit board and is in contact with at least one part of the current conducting layers of the printed circuit board.

Abstract: Method for measuring an operating temperature of a power module (10) that is used for operating an electric vehicle drive, the power module (10) comprising a plurality of semiconductor switching elements (14) and drive electronics (16), wherein the semiconductor switching elements (14) can be switched by the drive electronics (16) in such a way that the semiconductor switching elements (14) allow or interrupt a drain-source current in order to convert the direct current fed into the power module (10) at the input side into an output-side alternating current, wherein the method comprises measurement of a voltage present at a point located on a side of a diode (22) that is connected in series with the semiconductor switching element (14) and that faces away from the semiconductor switching element (14), wherein the method comprises measurement of a drain-source current of the semiconductor switching element (14) that is generated by a current source (18), wherein the method comprises determination of a mathemat