A wedge plate for a wedge clutch assembly for selectively engaging or disengaging an inner hub and an outer ring including first wedge plate segments arranged radially between the inner hub and outer ring, each of the first wedge plate segments including a first circumferentially extending groove and a first retaining element disposed in the first circumferentially extending groove and urging the first wedge plate segments radially inward to contact the inner hub.

A unitized wedge clutch includes a first race, a second race, a wedge segment, and a first side plate. The first race has a circumferential groove with a first angled surface and a second angled surface. The second race has a first ramp surface extending radially outward in a circumferential direction. The wedge segment is arranged in a radial space between the first race and the second race. The wedge segment has a third angled surface aligned with the first angled surface and a fourth angled surface aligned with the second angled surface, a second ramp surface aligned with the first ramp surface, and a first aperture. The first side plate has a first protrusion extending through the first aperture. The unitized wedge clutch may have a plurality of wedge segments arranged circumferentially in a radial space between the first race and the second race.

A unitized wedge clutch includes a first race, a second race, a wedge segment, and a first side plate. The first race has a circumferential groove with a first angled surface and a second angled surface. The second race has a first ramp surface extending radially outward in a circumferential direction. The wedge segment is arranged in a radial space between the first race and the second race. The wedge segment has a third angled surface aligned with the first angled surface and a fourth angled surface aligned with the second angled surface, a second ramp surface aligned with the first ramp surface, and a first aperture. The first side plate has a first protrusion extending through the first aperture. The unitized wedge clutch may have a plurality of wedge segments arranged circumferentially in a radial space between the first race and the second race.

A clutch device includes an outer disk carrier, outer disks, an inner disk carrier, inner disks, and at least one lug. The outer disk carrier has first axially running grooves, a first edge, and a first edge side. Each of the outer disks has radial projections spaced apart by depressions and projecting into the first axially running grooves. The inner disk carrier has second axially running grooves, a second edge, and a second edge side. Each of the inner disks has radial projections spaced apart by depressions and projecting into the second axially running grooves. The lug is arranged between two grooves of the first axially running grooves and extending axially from the first edge side, or arranged between two grooves of the second axially running grooves and extending axially from the second edge side.

A clutch device includes an outer disk carrier, outer disks, an inner disk carrier, inner disks, and at least one lug. The outer disk carrier has first axially running grooves, a first edge, and a first edge side. Each of the outer disks has radial projections spaced apart by depressions and projecting into the first axially running grooves. The inner disk carrier has second axially running grooves, a second edge, and a second edge side. Each of the inner disks has radial projections spaced apart by depressions and projecting into the second axially running grooves. The lug is arranged between two grooves of the first axially running grooves and extending axially from the first edge side, or arranged between two grooves of the second axially running grooves and extending axially from the second edge side.

A wedge clutch assembly for transferring torque from an engine to an output shaft, comprising a clutch carrier comprising an axial friction surface and a radially inwardly facing surface, a hub comprising a first radially outwardly facing surface having grooves positioned circumferentially thereon and detents positioned within the grooves, a wedge plate comprising an axial friction surface, a second radially outwardly facing surface, and a second radially inwardly facing surface having recesses, a pressure plate concentrically arranged within the first radially inwardly facing surface and displaceable such that in an engaged mode, an axial force is applied to the pressure plate, in a first axial direction, to engage the wedge plate with the clutch carrier such that torque is transferred from the engine to the output shaft, and in a disengaged mode, the wedge plate is independently rotatable from the clutch carrier.

A wedge clutch assembly for transferring torque from an engine to an output shaft, comprising a clutch carrier comprising an axial friction surface and a radially inwardly facing surface, a hub comprising a first radially outwardly facing surface having grooves positioned circumferentially thereon and detents positioned within the grooves, a wedge plate comprising an axial friction surface, a second radially outwardly facing surface, and a second radially inwardly facing surface having recesses, a pressure plate concentrically arranged within the first radially inwardly facing surface and displaceable such that in an engaged mode, an axial force is applied to the pressure plate, in a first axial direction, to engage the wedge plate with the clutch carrier such that torque is transferred from the engine to the output shaft, and in a disengaged mode, the wedge plate is independently rotatable from the clutch carrier.

A booster clutch includes a pilot-control clutch, a booster output side, a booster input side, a rocker element, a first energy storage element and a drum. The pilot-control clutch has a friction pack and a torque is frictionally transmittable when the friction pack is in a pressed state. The booster output side is torsionally fixed to a pilot-control input side and the booster input side is arranged to be torsionally fixed to an input shaft. The first roller is arranged via a ramp pairing between the rocker element and the booster input or output side. The first energy storage element is arranged between the rocker element and the booster output or input side, or is arranged to transmit a radial force to the rocker element. The first roller applies a predetermined torque over the booster input and output side, and presses the rocker element radially against the drum.

A disconnect clutch for a torque transfer device for a vehicle, including: an axis of rotation; an input shaft arranged to receive torque from a torque generating or transmitting device for the vehicle; an output shaft arranged to transmit the torque; a forward clutch having a first torque-carrying capacity; a reverse clutch having a second torque-carrying capacity less than the first torque-carrying capacity; and an actuator system. For a forward connect mode in which the input shaft is rotating in a first rotational direction, the actuator system is arranged to close the forward clutch to non-rotatably connect the input and output shafts. For a reverse connect mode in which the input shaft is rotating in a second rotational direction opposite the first rotational direction, the actuator system is arranged to close the reverse clutch to close the reverse clutch to non-rotatably connect the input and output shafts.

A wedge clutch, including: an outer carrier; a first clutch plate non-rotatably connected to the outer carrier; a wedge clutch plate; a hub radially inward of the outer carrier; an engagement assembly including a pin partially disposed within the hub and in contact with the wedge clutch plate; and an actuator. For a first synchronization stage for closing the wedge clutch: the actuator is arranged to clamp the first clutch plate and the wedge clutch plate; and a first portion of the pin extending radially outward beyond an outer circumference of the hub is arranged to transmit torque between the hub and the carrier. For a second synchronization stage for closing the wedge clutch: the hub or the wedge clutch plate are arranged to circumferentially displace with respect to each other; and the wedge clutch plate is arranged to displace the pin radially inward.