Abstract: The disclosure relates to a vehicle drive train of a vehicle comprising an engine which serves to drive at least one vehicle wheel, a multidisk brake assigned only to this driven vehicle wheel, and a clutch assigned only to this driven vehicle wheel, wherein the clutch is arranged between the engine and the vehicle wheel and, in the open state, decouples its associated vehicle wheel from the entire remaining vehicle drive train.

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: 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 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: A switching device for a motor vehicle transmission includes a coupling component, several transmission shafts which each are rotatable about a transmission axis, a frictional contact ring including a friction cone and being substantially non-rotatably and axially shiftably connected with a transmission shaft, a form-fit ring including a cone surface and being substantially non-rotatably and axially shiftably connected with the coupling component, as well as an actuating body including a cone surface and being substantially non-rotatably and axially shiftably connected with the coupling component. The friction cone of the frictional contact ring extends between the cone surface of the form-fit ring and the cone surface of the actuating body.

Abstract: A shifting device for a motor vehicle transmission includes several transmission shafts which each are rotatable about a transmission axis, a synchronizer ring which is firmly connected with a transmission shaft, a first disk carrier, a plurality of first disks which are non-rotatably and axially shiftably connected with the first disk carrier, a second disk carrier which is axially shiftable relative to the first disk carrier and in circumferential direction can be coupled with the synchronizer ring both frictionally and positively, a plurality of second disks which are non-rotatably and axially shiftably connected with the second disk carrier and form a multidisk clutch with the first disks, and an actuating body for axially pressurizing the second disk carrier, wherein the actuating body and the second disk carrier are rotatable relative to each other in circumferential direction and substantially are firmly connected with each other in axial direction.

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: This invention relates to a shifting device for a motor vehicle transmission, in particular a fully automatic stepped transmission, comprising several transmission shafts which each are rotatable about a transmission axis, a synchronizer ring which is firmly connected with a transmission shaft, a first disk carrier, a plurality of first disks which are non-rotatably and axially shiftably connected with the first disk carrier, a second disk carrier which is axially shiftable relative to the first disk carrier and in circumferential direction can be coupled with the synchronizer ring both frictionally and positively, a plurality of second disks which are non-rotatably and axially shiftably connected with the second disk carrier and form a multidisk clutch with the first disks, and an actuating body for axially pressurizing the second disk carrier, wherein the actuating body and the second disk carrier are rotatable relative to each other in circumferential direction and substantially are firmly connected with e

Abstract: A switching device for a motor vehicle transmission includes a coupling component, several transmission shafts which each are rotatable about a transmission axis, a frictional contact ring including a friction cone and being substantially non-rotatably and axially shiftably connected with a transmission shaft, a form-fit ring including a cone surface and being substantially non-rotatably and axially shiftably connected with the coupling component, as well as an actuating body including a cone surface and being substantially non-rotatably and axially shiftably connected with the coupling component. The friction cone of the frictional contact ring extends between the cone surface of the form-fit ring and the cone surface of the actuating body.

Abstract: The invention relates to a transmitter (18) for a synchronizing assembly of a manual transmission, having a thrust piece (42), a spring (44; 84) that cooperates with the thrust piece (42), and at least one synchronizer ring (30), the thrust piece (42) being acted upon by the spring (44) such that the transmitter (18) can transmit a pre-synchronizing force to the synchronizer ring (30) in the axial direction.

Abstract: An assembly unit for synchronizing a manual gearbox, includes first and second synchronizing rings connected to each other, wherein the two synchronizing rings are connected to each other by a positive-locking connection.

Abstract: A synchronizer hub comprises a one-piece, disk-shaped base body having a longitudinal extent, an external toothing on an outer periphery of the base body, and an internal toothing on an inner periphery of the base body. The external toothing is divided into a plurality of tooth segments which, as viewed in the longitudinal extent, alternately extend from the base body in opposite directions.

Abstract: The invention relates to a transmitter (18) for a synchronizing assembly of a manual transmission, having a thrust piece (42), a spring (44; 84) that cooperates with the thrust piece (42), and at least one synchronizer ring (30), the thrust piece (42) being acted upon by the spring (44) such that the transmitter (18) can transmit a pre-synchronizing force to the synchronizer ring (30) in the axial direction.

Abstract: The invention relates to an assembly unit for synchronizing a manual gearbox, comprising first and second synchronizing rings (30) connected to each other, which is characterized in that the two synchronizing rings are connected to each other by means of a positive-locking connection (40, 42; 40, 48; 50).

Abstract: A synchronizer hub comprises a one-piece, disk-shaped base body having a longitudinal extent, an external toothing on an outer periphery of the base body, and an internal toothing on an inner periphery of the base body. The external toothing is divided into a plurality of tooth segments which, as viewed in the longitudinal extent, alternately extend from the base body in opposite directions.