Abstract: A claw-type gearshift includes a sliding sleeve and a clutch body of a speed change gear, in which the sliding sleeve can engage. A blocking ring having an external toothing is arranged axially between the hub body and the clutch body and is fixed to the hub body such that it is rotatable in relation to the sliding sleeve by a certain degree in the circumferential direction between a release position and two locking positions. The blocking ring has a plurality of axially resilient tabs which are directed radially inward and which bear against the hub body and limit the movement of the blocking ring relative to the hub body in the circumferential direction, and a ring portion which is arranged radially outside of the tabs and which includes a friction surface that rests permanently against a mating friction surface on the clutch body.

Abstract: A multi-plate clutch is specified, with an outer plate carrier, an inner plate carrier and a plate pack which consists of alternately arranged outer plates and inner plates and is arranged radially between the outer plate carrier and the inner plate carrier, wherein a first group of the outer plates is mounted on the outer plate carrier and/or a first group of the inner plates is mounted on the inner plate carrier with a larger circumferential backlash than the other outer plates or inner plates, respectively, which are mounted on their plate carrier with no or smaller circumferential backlash, wherein the outer and/or inner plates with larger circumferential backlash in each case directly adjoin at least one plate with no or smaller circumferential backlash. Furthermore, an electrically operated drive train and a method for producing a multi-plate clutch are specified.

Abstract: A multi-plate clutch is disclosed, including an outer plate carrier, an inner plate carrier, and a set of plates of alternately arranged radially between the outer plate carrier and the inner plate carrier and which is delimited by two end plates engaging at opposite ends of the set of plates, wherein each end plate rests against an annular axial supporting contour on the end face facing away from the set of plates, wherein the supporting contours differ in their effective diameter at which the supporting contours contact the associated end plate, and wherein the supporting contours apply an axial force on the set of plates such that the plates are elastically deformed into a conical shape.

Abstract: A multi-plate clutch is specified, with an outer plate carrier, an inner plate carrier and a plate pack which consists of alternately arranged outer plates and inner plates and is arranged radially between the outer plate carrier and the inner plate carrier, wherein a first group of the outer plates is mounted on the outer plate carrier and/or a first group of the inner plates is mounted on the inner plate carrier with a larger circumferential backlash than the other outer plates or inner plates, respectively, which are mounted on their plate carrier with no or smaller circumferential backlash, wherein the outer and/or inner plates with larger circumferential backlash in each case directly adjoin at least one plate with no or smaller circumferential backlash. Furthermore, an electrically operated drive train and a method for producing a multi-plate clutch are specified.

Abstract: In a claw-type gearshift, a blocking ring is arranged axially between a hub body having a sliding sleeve and a clutch body such that it is rotatable between a release position and two locking positions. The blocking ring is adapted to be displaced toward the clutch body until friction surfaces on the blocking ring and on the clutch body come into contact. The blocking ring constitutes a form-locking blockade for the sliding sleeve against displacement of the sliding sleeve teeth between the clutch body teeth when an axial shifting force is applied in the non-synchronized state. When the claw clutch is shifted, a difference in speed between the clutch body and the hub body is reduced and the sliding sleeve is deflected in the axial direction toward the speed change gear to be shifted, causing a friction surface of the blocking ring and a mating friction surface of the clutch body to come into contact.

Abstract: A multi-plate clutch is disclosed, including an outer plate carrier, an inner plate carrier, and a set of plates of alternately arranged radially between the outer plate carrier and the inner plate carrier and which is delimited by two end plates engaging at opposite ends of the set of plates, wherein each end plate rests against an annular axial supporting contour on the end face facing away from the set of plates, wherein the supporting contours differ in their effective diameter at which the supporting contours contact the associated end plate, and wherein the supporting contours apply an axial force on the set of plates such that the plates are elastically deformed into a conical shape.

Abstract: A claw-type gearshift includes a sliding sleeve and a clutch body of a speed change gear, in which the sliding sleeve can engage. A blocking ring having an external toothing is arranged axially between the hub body and the clutch body and is fixed to the hub body such that it is rotatable in relation to the sliding sleeve by a certain degree in the circumferential direction between a release position and two locking positions. The blocking ring has a plurality of axially resilient tabs which are directed radially inward and which bear against the hub body and limit the movement of the blocking ring relative to the hub body in the circumferential direction, and a ring portion which is arranged radially outside of the tabs and which includes a friction surface that rests permanently against a mating friction surface on the clutch body.

Abstract: A claw-type gearshift has a sliding sleeve which is adapted to be axially displaced on a hub body and a clutch body of a speed change gear. The hub body has at least one thrust piece arranged thereon which includes a friction surface that cooperates with a mating friction surface on the clutch body, the at least one thrust piece being displaceable in the circumferential direction between a release position and two locking positions that are located on either side of the release position. A first locking structure on the at least one thrust piece cooperates with a second locking structure on the internal toothing of the sliding sleeve. The locking structures are configured such that in each of the locking positions, the locking structures rest against each other such that a further axial movement of the sliding sleeve is blocked. For shifting a gear, a difference in speed between the clutch body and the hub body is reduced.

Abstract: A coupling device for coupling two components in a torque-conducting manner is described. It comprises a first coupling component having a first external toothing and a second coupling component having a second external toothing. In addition, the coupling device has a sliding sleeve having an internal toothing which is permanently engaged with the first external toothing and can be selectively brought into engagement with the second external toothing. Furthermore, a locking unit is provided which can selectively assume a locking state in which the sliding sleeve is held in a form-fitting manner in a rotationally coupled state. In addition, the locking unit can selectively assume an unlocking state. A method of operating a coupling device is also presented.

Abstract: A method for operating a fuel cell system of a motor vehicle includes the steps of: i) detecting whether a washing process of the motor vehicle in a wash facility for cleaning the exterior of the motor vehicle is taking place or is imminent and ii) reducing the supply of an oxidizing agent to a fuel cell stack of the fuel cell system when it has been detected that a washing process is taking place or is imminent.

Abstract: A shifting device for a motor vehicle is described, comprising a first coupling component which is adapted to be selectively rotationally coupled to a second coupling component with a form-fit. In an open state, the first coupling component is rotationally decoupled from the second coupling component. In a frictional fit state, the coupling components are rotationally coupled with a frictional fit via a first frictional fit ring and a second frictional fit ring. In a form-fit state, an actuating ring is rotationally coupled to the first coupling component and the second coupling component with a form-fit such that the latter are connected with a form-fit. A motor vehicle transmission, in particular a fully automatic stepped transmission having such a shifting device is additionally presented.

Abstract: A method for operating a fuel cell system of a motor vehicle includes the steps of: i) detecting whether a washing process of the motor vehicle in a wash facility for cleaning the exterior of the motor vehicle is taking place or is imminent and ii) reducing the supply of an oxidizing agent to a fuel cell stack of the fuel cell system when it has been detected that a washing process is taking place or is imminent.

Abstract: A synchronizer unit for a manual transmission, in particular of a motor vehicle, has a hub which is adapted to be connected to a gear shaft for joint rotation therewith and includes a circumferentially continuous external toothing, a sliding sleeve which is received on the external toothing of the hub for displacement in the axial direction, but so as to be coupled in the circumferential direction to prevent relative rotation, at least one synchronizer ring which includes a preferably cone-shaped friction surface for friction coupling of the synchronizer ring to a speed change gear of the manual transmission and is adapted to be actuated by the sliding sleeve, and a spring ring which is arranged at an axial side of the external toothing of the hub and is configured to lock the sliding sleeve in a neutral position. The spring ring rests against a face side of the sliding sleeve and being operatively arranged between the sliding sleeve and the synchronizer ring.

Abstract: The invention relates to a gear shift device for a motor vehicle transmission, comprising a first and a second gearbox component which are rotatable relative to each other around a gearbox axis, a friction ring which is connected to the first gearbox component comprising a conical frictional surface, a plurality of first disks and a plurality of second disks. The first and second disks form a multi-disk clutch, the first disks being coupled to a synchronization element in a rotationally fixed manner, and the synchronization element comprising, axially adjoining the conical frictional surface of the friction ring, a conical mating surface for speed synchronization between the first gearbox component and the first disks. Further, the first disks are designed as a synchronization disk where the synchronization element is integrally formed thereon and/or one of the first disks is designed as a disk support coupling all first disks in the circumferential direction in a form-locking manner.

Abstract: A portable welding arrangement includes a welding apparatus having a storage battery, a power source, a welding control means and a connection for a welding torch. The operating mode of the welding apparatus can be changed between a standby mode and a welding mode. The portable welding arrangement includes a charging apparatus that can be connected to a power supply network and to the welding apparatus and has a charge controller for charging the storage battery. In a method for operating such a portable welding arrangement, for optimum charging of the battery, the charge controller of the charging apparatus is designed to control the charge of the accumulator of the welding apparatus in accordance with the operating mode of the welding apparatus.

Abstract: Provided is a synchronizer device and method for a manual transmission, having a sliding sleeve which includes an internal toothing having sliding sleeve teeth, a clutch body, the clutch body having an external toothing having a multitude of clutch body teeth for internal toothing of the sliding sleeve to engage therein, and a synchronizer unit. The clutch body teeth at the axial tooth ends adjacent the sliding sleeve and/or at least some of the sliding sleeve teeth at the axial tooth ends adjacent the clutch body each include at least one convex end face which extends in the circumferential direction from a root point adjacent to a tooth flank of the respective tooth via an axially protruding apex portion as far as to a root point adjoining an opposite tooth.

Abstract: A shifting device for a motor vehicle transmission has a first coupling component, a second coupling component rotatable about a transmission axis (A), an inner friction ring which has a conical surface on a radially outer face, an outer friction ring which has a conical surface on a radially inner face, and an intermediate friction ring having a C-shaped ring cross section, including a friction cone connected to the second coupling component for joint rotation with and for axial displacement with respect to the second coupling component, while the inner friction ring and the outer friction ring are connected to the first coupling component for joint rotation with and for axial displacement with respect to the first coupling component. The friction cone extends between the conical surfaces of the inner friction ring and outer friction ring.

Abstract: A shifting device for a motor vehicle is described, comprising a first coupling component which is adapted to be selectively rotationally coupled to a second coupling component with a form-fit. In an open state, the first coupling component is rotationally decoupled from the second coupling component. In a frictional fit state, the coupling components are rotationally coupled with a frictional fit via a first frictional fit ring and a second frictional fit ring. In a form-fit state, an actuating ring is rotationally coupled to the first coupling component and the second coupling component with a form-fit such that the latter are connected with a form-fit. A motor vehicle transmission, in particular a fully automatic stepped transmission having such a shifting device is additionally presented.

Abstract: A computer system that simulates a workload of a storage system including a non-transitory storage medium including instruction code for the computer system, wherein the instruction code, when executed on the computer system, performs steps as follows: obtaining configuration data regarding first components of the first storage system including at least one RAID group; obtaining performance data including workload information of the first storage system; configuring second components of a second storage system including at least one corresponding RAID group corresponding to the at least one RAID group of the first storage system, based on the obtained configuration data; and operating the second storage system using a simulated workload based on the obtained performance data, resulting in a front loading of the second storage system equivalent to a front loading of the first storage system.

Abstract: A synchronizer unit for a manual transmission, in particular of a motor vehicle, has a hub which is adapted to be connected to a gear shaft for joint rotation therewith and includes a circumferentially continuous external toothing, a sliding sleeve which is received on the external toothing of the hub for displacement in the axial direction, but so as to be coupled in the circumferential direction to prevent relative rotation, at least one synchronizer ring which includes a preferably cone-shaped friction surface for friction coupling of the synchronizer ring to a speed change gear of the manual transmission and is adapted to be actuated by the sliding sleeve, and a spring ring which is arranged at an axial side of the external toothing of the hub and is configured to lock the sliding sleeve in a neutral position. The spring ring rests against a face side of the sliding sleeve and being operatively arranged between the sliding sleeve and the synchronizer ring.