Abstract: A selectable one-way clutch adapted to prevent an undesirable engagement is provided. The selectable one-way clutch comprises a drag increasing device that increases a drag of oil acting between the pocket plate and the selector plate against a force rotating the selector plate in a direction to bring the selectable one-way clutch into the engagement mode.

Abstract: A cooling device for a hybrid module of a motor vehicle, comprising a housing, a driveshaft arranged within the housing, a rotor non-rotatable secured to the driveshaft, a stator secured to the housing, a clutch arranged to engage or disengage the driveshaft, said clutch being integral with the rotor and, a fluid transport device arranged on the driveshaft to transport a fluid to the clutch.

Abstract: A hydrokinetic torque coupling device includes an impeller, a casing having a first engagement surface, a damper assembly, a turbine-piston and a drive-clutch component non-moveably attached to the turbine-piston and having a second engagement surface. The turbine-piston is axially displaceable relative to the casing to move the second engagement surface axially towards and away from the first engagement surface for positioning the hydrokinetic torque coupling device respectively into and out of a lockup mode in which the first and second engagement surfaces frictionally interlock with one another to mechanically lock the casing non-rotatably relative to the input part of the damper assembly. The drive-clutch component is configured to engage and rotationally drive a torsional vibration damper.

Abstract: An actuating piston, and a piston assembly and a disconnect system including the actuating piston are provided. The actuating piston includes an annular backing plate having an axial projection on a first side between an inner radius and an outer radius and an annular piston having a recess between an inner radius and an outer radius. The annular piston is disposed on the annular backing plate so that the axial projection is received in the recess. The actuating piston is selected from a set of actuating pistons, each having a different height based on at least one of the wall thickness of the annular piston being varied or a height of the axial projection being varied, and one of the actuating pistons with a desired height is selected based on an actual height of the friction device.

Abstract: Technology is provided for a torque limiting clutch for use with a robot arm. The torque limiting clutch includes a hub including a hub flange and a clamp plate slideably mounted on the hub. A drive member is rotatably mounted on the hub between the hub flange and the clamp plate. The drive member includes a plurality of gear teeth disposed around an annular clutch disc. A first friction disc is positioned between the hub flange and the annular clutch disc, and a second friction disc is positioned between the clamp plate and the annular clutch disc. A plurality of clamp fasteners extend through the hub flange and engage the clamp plate to exert a clamping force operative to urge the clamp plate toward the hub flange, thereby pressing the friction discs against the annular clutch disc in order to transfer torque between the gear teeth and the hub.

Abstract: A torque converter is provided that includes an impeller having an impeller shell with a first surface, an axially displaceable turbine-piston hydrodynamically drivable by the impeller and including a turbine-piston shell and a turbine-piston flange with a second surface, and a clutch plate interposed between and axially displaceable relative to at least one of the first and second surfaces. The turbine-piston is axially movable relative to the impeller to move the second surface of the turbine-piston flange towards and away from the first surface for positioning the torque converter into and out of a lockup mode in which the first and second surfaces and the clutch plate surfaces frictionally interlock with one another so that the impeller is mechanically locked to and non-rotatable relative to the turbine-piston.

Abstract: A dual actuation synchronizing clutch assembly including an improved synchronization arrangement is provided. The dual actuation synchronizing clutch assembly has a plurality of operational phases, including initial, synchronization, positioning, engagement, and running phases that vary the torque flow path between the input shaft and output shaft. A synchronizing assembly is provided that includes a synchronizer ring having a first friction surface and synchronizer teeth. A connecting gear includes a lock-up assembly with retractable elements and connecting gear teeth. An output gear includes a second friction surface configured to frictionally engage the first friction surface of the synchronizer ring, and a contoured receiving path with positioning points configured to receive the retractable elements of the lock-up assembly.

Abstract: A clutch module which includes a first rotating member including at least one strut actuation module and a second engaged member including cam surfaces thereon for engagement by said strut actuation module. The strut actuation module includes a frame with a strut pivotally movable with respect to the frame. The strut includes an engagement end and a base end including a first side and a second side thereof. A pin or post portion extends from the frame and has an insulated bobbin with an energizable coil surrounding the bobbin. A U-shaped member including a pair of actuation legs is attached to the pin member and forms a magnetic gap between the base end of the strut and peripheral ends of the legs, such that when the coil is energized the peripheral ends of the legs are polarized in a first polarity and the frame and the strut are polarized with an opposite polarity thereby biasing the strut toward the peripheral ends and pivoting the actuation end into engagement with a cam surface of the engagement member.

Abstract: A hydrokinetic torque coupling device includes a casing shell having a first engagement surface, a torque converter including an impeller and a turbine that is hydrodynamically drivable by the impeller and includes a turbine shell, an output hub, a damper-piston assembly including torsional vibration damping members and a piston retainer plate having a second engagement surface facing the first engagement surface, and a transmission component through which the torsional vibration damping members are interconnected to the output hub. The piston retainer plate engages the first ends of the damping members and the transmission component engages the second ends of the torsional vibration damping members. The damper-piston assembly is axially displaceable between a lockup mode and a hydrodynamic transmission mode.

Abstract: A hollow double-acting cylinder assembly may be mounted over a shaft and to a housing. A moveable piston of the cylinder assembly connects to a sliding sleeve of an over-center mechanism and the sliding sleeve with a thrust bearing allowing it to push and pull the sleeve mechanism with cylinder action. A toggle action of the over-center mechanism locks clutch without the need to sustain pressure on the cylinder after engagement/disengagement motion. As the clutch is typically engaged for sustained periods of time, this prevents constant hydraulic pressure applied to the over-center mechanism and significantly reduces wear. Hydraulic/pneumatic hoses may pass through the housing and connect to engage and disengage bores of the cylinder via remotely actuated control valve(s).

Abstract: A power transmitting component can include a friction clutch, a ram, a pump, a fluid storage device and a valve. The ram can have a piston chamber and a piston movable therein between a first and second position to engage the friction clutch. A first inlet/outlet of the pump can be fluidly coupled to a reservoir. The fluid storage device can hold pressurized hydraulic fluid. The valve can be fluidly coupled with the piston chamber, a second inlet/outlet of the pump, and the fluid storage device. When in a first mode, the valve can permit fluid communication between the pump and the fluid storage device, inhibit fluid communication between the piston chamber and the pump, and inhibit fluid communication between the piston chamber and the fluid storage device. When in a second mode, the valve can permit fluid communication between the pump, the fluid storage device, and the piston chamber.

Abstract: A torque limiting apparatus is provided having an input shaft, an output shaft, a housing, a spring, and a length adjustable shank and collar assembly. The input shaft communicates with a rotating end segment having a cam surface. The output shaft communicates with a rotating end segment having a complementary cam surface for engaging with the cam surface of the input shaft. The cam surfaces cooperate to generate separation forces between the respective rotating end segments. The housing encases the first end segment and the second end segment. The spring is supported in the housing, and is configured to oppose the separation forces generated by the cam surfaces, and is configured to urge together the first end segment and the second end segment to remain in rotating coupled engagement. The length adjustable shank and collar assembly is provided between the spring and the housing and is configured to adjust compressive force on the spring to change torque output of the apparatus. A method is also provided.

Abstract: A lever system for actuating at least one clutch, comprising at least one pivotable lever that has a certain bending stiffness. The lever has at least one flexurally elastic zone which is designed and/or arranged in such a way that the bending stiffness of the lever varies in accordance with an actuation path of the clutch.

Abstract: A hybrid vehicle powertrain includes an internal combustion engine, an electric traction motor and a transmission. A first flexible coupling drivingly connects the internal combustion engine to the transmission, and a second flexible coupling drivingly connects the electric traction motor to the transmission.

Abstract: A shift device includes an output shaft, a hub, a speed gear, a sleeve, a synchronizer ring, lever members, and a spring. The lever members have torque receiving portions contactable with projections of the synchronizer ring to receive friction torque from the projections. Contact positions of the torque receiving portions and the projections in a synchronization operation are set at a hub side of the lever members and an axial-directional distance between points of support and the contact positions is less than a thickness of the lever member.

Abstract: When a clutch relay connects between a control device and a vehicle electric power source in response to outputting of a clutch OFF signal from an electronic control device to the clutch relay, a timer circuit starts a control operation for energizing coil portions. When a predetermined time period elapses, the timer circuit terminates energization of the coil portions. When the clutch relay connects between the control device and the vehicle electric power source in response to outputting of a clutch ON signal from the electronic control device to the relay, the timer circuit starts a control operation for energizing the coil portions. When a predetermined time period elapses, the timer circuit terminates energization of the coil portions.

Abstract: A clutch assembly for transmitting power from an output shaft of an engine to an input shaft of a gearbox includes annular friction surfaces on at least one of the flywheel and the pressure plate. The annular friction surface has a plurality of grooves that extend across the annular friction surface away from an inner rim of the friction surface toward an outer rim of the friction surface to prevent a reduction in friction caused by outgassing or abraded particles trapped between engaging friction surfaces.

Abstract: A hydrokinetic torque coupling device features an impeller including an impeller shell and impeller blades, and a turbine-piston including a turbine-piston shell and turbine blades. The turbine-piston is movable axially toward and away from the impeller shell to position the torque converter (or a hydrokinetic torque coupling device containing the torque converter) into and out of lockup mode. The impeller shell comprises a toroidal impeller shell portion that terminates at a first distal end clutch surface. The turbine-piston shell comprises a toroidal turbine-piston shell portion and a folded-over portion folded over onto the toroidal turbine-piston shell portion so as to engage the toroidal turbine-piston shell portion of the turbine-piston shell. The turbine-piston shell terminates at a second distal end clutch surface defined by the toroidal turbine-piston shell portion and the folded-over portion so that the second distal end clutch surface faces the first distal end clutch surface.

Abstract: A hybrid drive module, including: a torque converter with an output shaft, a cover for connection to a flex plate for an internal combustion engine, an impeller non-rotatably connected to the cover, a turbine, and a torsional damper including an input part non-rotatably connected to the turbine, an output part non-rotatably connected to the output shaft, and at least one circumferentially aligned coil spring engaged with the input part and output parts; an output hub arranged to non-rotatably connect to a transmission input shaft; and a disconnect clutch assembly including a first clutch component non-rotatably connected to the output hub and arranged to non-rotatably connect to an electric motor and a second clutch component non-rotatably connected to the output shaft. A torque path from the cover to the output hub passes through in sequence: the turbine, the damper, the output shaft, the second clutch component, and the first clutch component.

Abstract: A one way overrunning clutch capable of fully disconnecting a drive and driven members during overrunning by utilizing helical teeth or utilizing jaw teeth. Both assembly types provide a drive connection in one rotational direction and allow for overrunning in the opposite rotational direction. Both helical and jaw tooth coupling systems contain a spring loaded actuating plate allowing it to move along either assembly's common axis, enabling components connected to the drive or driven to be completely unconnected when overrunning occurs under certain operating conditions.