Abstract: An electrode module for a redox flow cell comprises a frame having a peripheral seal which is arranged on an inner periphery of the frame and which has at least two inwardly directed elastic sealing lips. A peripheral groove is formed between two of the sealing lips. The electrode module also comprises an electrode having an outer periphery with which the electrode is seated in the groove of the seal.

Abstract: A bearing and a sealing device. The sealing device includes: a skeleton; and a sealing part, which, taken as a whole, is of an annular structure, the sealing part comprising an elastic part and a plastic part, and the elastic part being fixed to the skeleton. After the sealing device is arranged between a bearing inner ring and a bearing outer ring, the plastic part and the bearing inner ring form contact sealing, the elastic part and the plastic part are relatively fixed, and in the radial direction, at least part of the plastic part is arranged between the bearing inner ring and the elastic part. The coefficient of friction of the material of the plastic part is smaller than the coefficient of friction of the material of the elastic part.

Abstract: A stator of an electric axial flux machine as well as to an electric axial flux machine are provided. The stator of the axial flux machine includes multiple axially protruding stator teeth, a first winding being wound about at least one stator tooth, the first winding being spaced from the stator tooth by at least one radial spacing element such that a gap is formed between a radially inner face of the first winding and the stator tooth in order for a cooling fluid to be able to flow therethrough. The stator of an axial flux machine and the axial flux machine equipped with this stator afford durable units which ensure efficient cooling and thus high performance.

Abstract: A method is provided for testing switch signals of an inverter of an electric machine of a drive system of a motor vehicle. The electric machine is controlled via a pulse-width modulation generated by a control unit using a target duty cycle and a triangular-waveform voltage sequence. An actual duty cycle of a current pulse-width modulation is continuously ascertained from the switch signals and compared with the target duty cycle of the control unit.

Abstract: A steering actuator for rear axle steering of a motor vehicle has a spindle drive (5) which comprises pushrods (9) which are connected to a threaded spindle (16) and which are mounted in a housing (6) by means of plain bearings (18), allowing the passage of air, and are connected at each end thereof to an attachment element (12) provided for coupling to a chassis suspension arm, wherein a gaiter (19, 20) is connected on the one side to the housing (6) and on the other side to one of the attachment elements (12) in each case. Each plain bearing (18) is designed as a bearing allowing one revolution of the threaded spindle (16), wherein at least one longitudinal groove (21) abuts one guide bush (23) of the plain bearing (18).

Abstract: A method calculates temperatures in an electric drive unit. A first temperature detection region has a first temperature and a second temperature detection region has a second temperature. The first temperature is influenced by a first coupling value which is non-linearly dependent on the first temperature and the temperature at the first and second temperature detection regions. The calculations are divided among separate calculation units such that the temperatures can be estimated in real time.

Abstract: An electric axial flux machine having a stator with first and second stator elements arranged spaced apart axially from one another, and a rotor with a rotor body arranged on a rotor shaft, in the form of a disk and arranged axially between the first and second stator elements, the first and second stator elements being arranged movably in the axial direction in relation to the rotor body. An adjustment device is provided to adjust the first stator element and the second stator element in the axial direction in order to set an air gap. The adjustment device adjusts the first stator element and the second stator element in the axial direction depending on a torque which is to be transmitted via the rotor shaft and which generates a resulting supporting moment on the first stator element and on the second stator element.

Abstract: A steering system for a vehicle including at least one pair of wheel units which can be actuated and deflected independently of each other. Each wheel unit is paired with at least one sensor device for detecting a deviation from a specified deflection of the wheel units relative to each other, and each wheel unit is paired with at least one actuation device in order to actuate the wheel units. At least one control unit is designed to actuate the actuation devices of the wheel units when the sensor devices detect a specified deviation of the specified deflection of the wheel units relative to each other.

Abstract: A contacting assembly of a bipolar plate having two half-sheets which are spaced apart from one another in parallel and can be attributed to a bipolar plate. Each half-sheet has embossing elements and the embossing elements of the two half-sheets face one another. A connecting pin inserted between the half-sheets makes contact with embossing elements of the half-sheets.

Abstract: A fluid jacket is disclosed herein that generally includes an enclosure component and a stator carrier to define a fluid pocket. Indentations, embossments, or other features can be defined on one of the enclosure component or the stator carrier to provide a more turbulent flow within the fluid pocket. The enclosure component and stator carrier can be laser welded to each other. A constriction can also be defined within the fluid pocket, which can be formed via a relative flattening to straight portion of the enclosure component or the stator carrier. This constriction can effectively restrict the flow of fluid within the fluid pocket, thereby ensuring that fluid is directed circumferentially around the fluid pocket.

Abstract: A heat exchanger assembly is disclosed herein for an electric motor. The heat exchanger assembly can include two fluid circuits: a first circuit for water and a second circuit for oil. The water fluid circuit is configured to cycle cool water through a housing including a heat exchanger element. The oil fluid circuit is configured to supply oil to the area of the heat exchanger element. In one aspect, the oil is supplied to a space defined between a rotor shaft and the housing. The static heat exchanger is packaged coaxially between two rotating shafts.

Abstract: A bearing cage for a bearing assembly is disclosed herein. The bearing cage includes a first ring, a second ring, and a plurality of crossbars extending between the first ring and the second ring to define a plurality of rolling element pockets. A first terminal end of each of the plurality of crossbars is connected to the first ring and a second terminal end of each of the plurality of crossbars is connected to the second ring. A medial portion of each of the plurality of crossbars is defined between the first terminal end and the second terminal end, and a pair of recesses are defined on opposing circumferential sides of the medial portion.

Abstract: An unbalanced shaft is provided that has a center of mass eccentric to its rotational axis to generate a shaft unbalance. The unbalanced shaft includes a bearing journal having a variable width throughout its circumference, and a multi-row cage having rollers which roll on inner raceways arranged on an outer lateral surface of the bearing journal. The rollers and inner raceways define a load zone, within which a width of each of the inner raceways is greater than an effective length of the rollers idling thereon. At least one of the inner raceways, which extends circumferentially for 360 degrees, has a width throughout that is greater than an effective length of the rollers rolling thereon. For sections outside of the load zone, at least one of the inner raceways has a width less than the effective length of the rollers that roll thereon.

Abstract: A wheel bearing unit includes an outer ring, a first inner ring with a first axial end face, first rolling elements arranged between the outer ring and the first inner ring, a second inner ring with a second axial end face, facing the first axial end face, second rolling elements arranged between the outer ring and the second inner ring, and a sealing device for sealing an interface of the first inner ring and the second inner ring. The sealing device includes an annular retaining element and a sealing element provided on the annular retaining element. The sealing element is a sealing ring that includes first and second contact points contacting the annular retaining element, a third contact point contacting the first inner ring, and a fourth contact point contacting the second inner ring. At least one of the contact points has a flat face.

Abstract: A centrifugal pendulum absorber includes: a center plate arranged to receive a torque; a first pendulum connected to the center plate; and a second pendulum mass connected to the center plate and circumferentially aligned with the first pendulum mass. The first pendulum mass includes a first circumferential end and a first curved portion disposed at the first circumferential end. The second pendulum mass includes a second circumferential end disposed proximate to the first circumferential end and a second curved portion disposed at the second circumferential end. The first curved portion and the second curved portion are each convex relative to a first circumferential direction from the first circumferential end to the second circumferential end.

Abstract: A park lock gear assembly for a transmission unit of a vehicle includes a transmission shaft, a park lock gear arranged on the transmission shaft, a housing unit of a motor unit and a bearing assembly. The housing unit has a portion extending parallel to the transmission shaft and adjacent to the park lock gear, and the bearing assembly is disposed between the park lock gear and the portion of the housing unit. The bearing assembly may be arranged with a radial clearance between the park lock gear and the portion of the housing unit. The bearing assembly may be arranged on the portion of the housing unit with the radial clearance between the bearing assembly and the park lock gear.

Abstract: A linear actuator for a steer-by-wire system including a component, in particular an axle or a shaft, that can be moved along a linear trajectory, and including a measuring device for determining a position of the component. The measuring device has a coil for inductively determining the position of the component, and the coil is arranged coaxially relative to the linear trajectory of the component.

Abstract: A bearing module that supports adjacent ends of coaxial shafts, includes an outer ring having first and second axially adjacent raceways and first and second flanges located at the respective ends. A first group of rolling elements rolls on the first raceway, and a second group of rolling elements rolls on the second raceway. A first cage retains the first group of rolling elements circumferentially spaced apart from one another, and a second cage retains the second group of rolling elements. An axial bearing is retained axially between the first and second groups of rolling elements, and has axial bearing rolling elements that are configured for rolling contact with (a) facing axial side raceways on first and second inner rings supported respectively on the first and second groups of rolling elements, (b) the adjacent ends of the two coaxial shafts, or (c) integral washers of the axial bearing.

Abstract: A parking lock actuation system for a motor vehicle includes an actuation element that can be moved between a locking position, in which a parking lock of the motor vehicle is active, and an unlocking position, in which the parking lock is inactive. The system also includes a locking element which is designed to fix the actuation element in the unlocking position in a form-fitting manner; and an electric actuator which has an adjusting effect on the locking element. A current circuit which has an autonomous power source is connected to the electric actuator, and a bistable switch and a monostable opener arranged in series to the bistable switch are used in the current circuit.

Abstract: A rolling bearing cage includes axially spaced side rings, cage webs connecting the side rings, cage pockets, and first and second cage ends. The cage webs have rolling element guides projecting radially inwards and the cage pockets are formed between the rolling element guides. The first cage end has a closing element formed by an axial groove at a radial web surface of a cage web that is reinforced relative to the other cage webs and delimits a penultimate cage pocket. The second cage end has a closing element formed by a partial cage web connecting the end portions at the second cage end to one another. The partial cage web is arranged to hook into the axial groove to form a cage lock that secures the second cage end to the first cage end against unintentional loosening in a peripheral direction and in both radial directions.