Abstract: A device is configured for determining the conductivity of a tire. The device includes a frame, a supporting device attached to the frame with a supporting surface that extends in a contact plane on which a tire can rest, a first measuring device attached to the frame and having an electrically conductive first segment, and a second measuring device attached to the frame and having an electrically conductive second segment. When a tire having a radially outer tread and a radially inner bead is resting on the supporting surface with a first side that faces toward the contact plane, the first measuring device can be moved from a second side of the tire opposite the first side to the bead so that in a test configuration the first segment contacts the bead and the second segment contacts the tread.

Abstract: An actuating device for a transmission has an adjusting element which can be moved in rotation by way of an actuator. At least one actuating element is arranged on one side of the adjusting element and can be moved in translation as a function of a rotation movement of the adjusting element. Roller bodies between the adjusting element and the actuating element concerned are arranged in such manner that each roller body engages in a ramp-shape contoured groove of the adjusting element and in a ramp-shape contoured groove of the actuating element concerned. The roller bodies, which are arranged between the adjusting element and the actuating element concerned, are arranged in at least two concentric roller body rings. Alternatively, or in addition, bearing bodies which serve to support the adjusting element on a housing-side base element are arranged in at least two concentric bearing body rings.

Abstract: A cooling arrangement for cooling a stator for an electric machine. The cooling arrangement comprising a stator fixedly mounted relative to a rotational axis. The stator comprises a stator yoke and stator grooves. Windings are provided in the stator grooves, which form first and second winding heads. First and second fluid rings are provided at opposite ends on the stator yoke. The first fluid ring has a fluid inflow opening from a stator housing. The stator yoke has a plurality of axial stator ducts extending in the axial direction, which enable the inflowing fluid to flow through from the first fluid ring to the second fluid ring, and the second fluid ring redirects some of the fluid.

Abstract: A vibration absorber for securely fixing to the housing of a gearbox includes an absorber mass having a first group of segments that are rotationally symmetrical to one another with respect to a rotational axis and/or central axis of the gearbox. The segments can be rigidly connected to one another. The vibration absorber can further include connectors that are rigidly connected to two segments each.

Abstract: Systems and methods are provided for generating data for sensor system validation. A representative vehicle is equipped with a set of sensors positioned to provide a collective field of view defining a set of sensor locations as a set of master data and encompassing a field of view of a sensor positioned at any of the set of sensor locations. The set of sensor locations includes a sensor location at which no sensor of the set of sensors is placed. The representative vehicle is driven for a distance required for validation of a sensor system to provide master data representing the entire distance required for validation.

Abstract: A motor vehicle transmission is connected between a drive aggregate and a drive output, and includes a powershiftable main transmission group with a plurality of forward gears and at least one reversing gear. A hydrodynamic starting element is connected between the drive aggregate and the transmission. The main transmission has frictional shifting elements of which, in each gear, a first number are closed and a second number are open. The main transmission has a parking lock that, when engaged, immobilizes an output shaft of the main transmission group. A downstream range group includes at least one interlocking shifting element and can be shifted between a first range and a second range. When the motor vehicle is stationary with the drive aggregate running, to shift the downstream range group the parking lock is first engaged, and then the downstream range group is shifted into neutral from a range to be disengaged.

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: The disclosure relates to a wiring configuration for a stator of an electric machine. The wiring configuration comprises a busbar which forms a segment of a switching ring with an outer connection and a winding connection. Outer connection elements and winding connection elements are arranged in a wiring region. The wiring configuration additionally comprises a receiving element which is at least thermally coupled to the busbar. The receiving element is arranged outside of the wiring region. The disclosure additionally relates to a temperature sensor device for plugging onto the receiving element of the wiring configuration and to a system for detecting the temperature of a stator.

Abstract: A cooling system for a drive assembly in a hybrid or electric vehicle includes a reservoir that contains and supplies fluid for a first coolant circuit, which is conveyed by a pump from a sump into an interior of a housing for the reservoir, wherein there is at least one coolant line for a second coolant circuit on and/or in the housing with which coolant is conveyed from power electronics to a heat exchanger.

Abstract: A transmission housing (101, 111) has at least one bead (115) for forming one or more housing feed-through passages (117). A method of producing the transmission housing and a transmission series are also disclosed.

Abstract: A method for operating a vehicle includes obtaining personal data associated with a user of the vehicle, obtaining operating data for the vehicle, determining a driver behavior recommendation to reduce emissions of the vehicle based at least in part on the personal data and the operating data, and presenting the driver behavior recommendation on an interface.

Abstract: A vibration damper with a damper piston which is arranged in a main tube with hydraulic medium and can be moved to and fro in an axial direction relative to the main tube. The main tube is arranged in a container tube, wherein an intermediate tube is arranged between the main tube and the container tube. The main tube, the intermediate tube and the container tube are arranged coaxially in a three-tube damper. The damper piston is attached at one end of a piston rod. The three-tube damper is equipped with a hydraulic end-position damping and at its end opposite the piston rod, has a central valve block with two damper valve devices. The central valve block is partially fitted with an air spring resting on an axial support ring which is connected by a single main weld seam to the container tube and central valve block by substance bonding.

Abstract: A method for carrying out action instructions with a working machine includes determining whether the orientation of the action instruction matches the driving direction of the working machine; determining an absolute distance between the working machine and the action instruction concerned on the basis of the position of the working machine and the respective position of the action instruction; determining, for action instructions with an absolute distance smaller than a first pre-definable value, a relative distance between the working machine and the action instruction concerned in the driving direction of the working machine and transversely to the driving direction; and actuating, for action instructions with a relative distance which is smaller than a second pre-defined value, an external control unit for carrying out the action instruction concerned. A control unit and a working machine are also disclosed.

Abstract: A processor unit is configured for determining target torque values (21), which lie within a prediction horizon (20), and target speed values (19), which lie within the prediction horizon (20), by executing an MPC algorithm, which includes a longitudinal dynamics model of a drive train of the motor vehicle. An autonomous driving function of the motor vehicle is carried out in a torque specification operating mode or in a speed specification operating mode as a function of the level of the target torque values (21). In the torque specification operating mode, a prime mover of the drive train is controlled by an open-loop system based on the target torque values (21). In the speed specification operating mode, a speed governor of the drive train is controlled by an open-loop system based on the target speed values (19).

Abstract: The present invention relates to a method for resolving a tooth-on-tooth position of a positive-locking shifting element of an automated manual transmission, in which gear steps of the automated manual transmission are changed by means of a pressure-medium-actuated shift actuator. If, during a change of a gear step of the automated manual transmission, a tooth-on-tooth position occurs at the interlocking shifting element, then the control of the pressure-medium-actuated shift actuator is varied in such manner as to resolve the tooth-on-tooth position. A control unit for carrying out the method is also disclosed.

Abstract: A gearwheel (20) for a gear step in an electric vehicle transmission (18) includes a gearwheel carrier and a toothed ring (30) having an external toothing (42). The toothed ring is rotationally fixable to the gearwheel carrier. The gearwheel carrier is formed by a first partial carrier (38) and a second partial carrier (40) that are at least partially axially spaced apart and extend from the toothed ring radially inward. An axial spacing of the two partial carriers is greater, at least partially, than an axial length of the toothed ring.

Abstract: A method for controlling actuation of an actuatable restraint in response to a vehicle rollover event includes detecting whether the vehicle (12) is being driven off-road. The method also includes determining whether the vehicle (12) is undergoing a roll event (99) that would warrant actuation of the actuatable restraint (20) if the vehicle was being driven on-road. The method further includes actuating the actuatable restraint (20) in response to determining that a roll acceleration (D RATE) of the vehicle (20) indicates that the roll event is continuing. A vehicle safety system (10) includes an actuatable restraint and a controller (50) configured to control actuation of the actuatable restraint according to this method.

Abstract: A method for operating a steering mechanism (12) of a motor vehicle, wherein a steering rod (27) can be held or displaced along its longitudinal axis (a) by an electric motor (22) so that the wheel steering angle (8, 9) of at least one wheel (5, 6) on at least one vehicle axle (1) can be maintained or changed. When a force (Fext) acts essentially axially on the steering rod (27), displacement of the steering rod (27) is at least inhibited by a detent torque (RM) of the electric motor (22) and/or by a self-induced torque (Msip) of the electric motor. The invention also relates to a device for carrying out the method and to a steering mechanism, which is preferably in the form of a steer-by-wire steering system. A control unit is provided for carrying out the method.

Abstract: A drive module (10) for a drive train test stand includes an electric motor (12) and a base frame (11), wherein the base frame (11) carries the electric motor (12). The drive module (10) according to the invention is characterized in that the drive module (10) encloses a housing (13) of the electric motor (12) circumferentially along a circumferential direction of the housing (12) to 360°. The invention further relates to a corresponding drive train test stand and to a method for producing the drive module.

Abstract: A transmission for a power train of a motor vehicle has a first stationary housing part having a first axial contact surface, a second stationary housing part, and a first sealing element on the second stationary housing part, the first sealing element being axially compressible. Additionally, the transmission includes a first planetary gear set including a planet carrier, at least one planet gear, a sun gear, and a ring gear. The planet carrier is fixed relative to one or both of the first stationary housing part and the second stationary housing part. One side of the planet carrier rests against the first axial contact surface, where the first sealing element acts on another side of the planet carrier to axially preload the planet carrier against the first axial contact surface to prevent the planet carrier from tilting relative to a rotation axis of the first planetary gear set.