Abstract: Drive systems or powertrains including transmissions for electric and hybrid electric vehicles are provided. 3-position linear motor, 2-way clutches (i.e. CMDs) are included in the transmissions. An electric 3-speed AMT having a magnetic coupling device such as a magnetic torque converter is provided to magnetically transfer a portion of rotating mechanical energy of an electric powerplant or motor to a transmission output shaft in response to an electrical signal to synchronize angular velocities of the transmission output shaft and an output shaft of the electric powerplant during a change in state of one of the CMDs. Torque is transferred to the transmission output shaft during the change in state.

Abstract: A drive system or powertrain including an automatic transmission (AT) for an electric vehicle is provided. At least one 3-position linear motor, 2-way clutch (i.e. CMD) is included in the transmission. The transmission includes a planetary gear set. A magnetic coupling device such as an eddy current by-pass clutch is provided to magnetically transfer a portion of rotating mechanical energy of a single electric powerplant or motor to a transmission output shaft in response to an electrical signal to synchronize angular velocities of the transmission output shaft and an output shaft of the electric powerplant during a change in state of the at least one CMD. Torque is transferred to the transmission output shaft during the change in state. A park function is also provided.

Abstract: A coupling and electromechanical control assembly and an electromechanical system for controlling the operating mode of a selectable clutch assembly are provided. The system includes a control member mounted for controlled rotation about a first axis. An actuator and transmission assembly includes a rotary output shaft and a set of interconnected transmission elements including a cam coupled to the output shaft to rotate therewith and a reciprocating member having a first end which rides in or on the cam to cause the reciprocating member to reciprocate upon rotation of the output shaft. A second end of the reciprocating member is coupled to the control member for selective, small-displacement, control member angular rotation about the first axis between different angular positions which correspond to different operating modes of the clutch assembly.

Abstract: Overrunning coupling and control assembly, coupling assembly and locking member having at least one side surface with a draft to improve locking member dynamics are provided. Locking member dynamics is improved with regards to locking member laydown speed. Laydown speed variation cause by a variable frictional coefficient between a pocket surface of a pocket in which the locking member is received and nominally retained and the at least one side surface of the locking member is minimized as well.

Abstract: An electronic, high-efficiency vehicular transmission, an overrunning, non-friction coupling and control assembly and switchable linear actuator device for use in the assembly and the transmission are provided. The device controls the operating mode of at least one non-friction coupling assembly. The device has a plurality of magnetic sources which produce corresponding magnetic fields to create a net translational force. The net translational force comprises a first translational force caused by energization of at least one electromagnetic source and a magnetic latching force based upon linear position of a permanent magnet source along an axis.

Abstract: A selectable one-way clutch includes: a pocket plate including accommodating recess portions; a notch plate including engaging recess portions; a plate-shaped engaging piece; and a selector plate configured to switch between: a state in which the engaging piece rises toward the notch plate; and a state in which the engaging piece is accommodated in the accommodating recess portion. The notch plate includes a plane portion including a first inclined surface, and the first inclined surface provides the engaging piece with force in a direction into which the engaging piece is urged away from the notch plate, when the notch plate is rotated in an engaging direction into which the engaging piece rising toward the notch plate is engaged with the engaging recess portion, and one end portion of the engaging piece rises toward the notch plate and comes in contact with the plane portion.

Abstract: An electromagnetic system for controlling the operating mode of a non-friction coupling assembly and a coupling and magnetic control assembly are provided. Magnetic circuit components include a ferromagnetic or magnetic element received within a pocket of a coupling member. The element controls the operating mode of the coupling assembly. A stationary electromagnetic source includes at least one excitation coil which generates a magnetic field between poles of the source when the at least one coil is supplied with current. Ferromagnetic or magnetic first and second inserts are received and retained within first and second spaced passages, respectively, of the coupling member. The electromagnetic source, the element, the inserts and air gaps between the various magnetic circuit components make up a closed loop path containing magnetic flux so that the element moves between first and second positions of the element when the at least one coil is supplied with current.

Abstract: A controllable coupling assembly having substantially no backlash is provided. The assembly includes a set of reverse locking formations each of which includes a load bearing surface having a sloped geometry and being adapted to lock a reverse locking element in place along the load bearing surface based on a mechanical tolerance between load bearing surfaces of forward and reverse locking elements through a wedging effect to prevent relative rotation between first and second coupling members of the assembly in a reverse direction about a rotational axis, to absorb at least a portion of the tolerance and to substantially eliminate any backlash between the locking elements.

Abstract: Overrunning coupling and control assembly and control system for use therein are provided. The system includes a control member mounted for controlled shifting movement between the coupling faces of first and second coupling members. An actuator arm includes an output member and a one-way locking member which is pivotally connected to output member which, in turn, is coupled to the control member. The locking member moves between a disengaged position in which the control member is permitted to shift or rotate relative to the second coupling member and an engaged position with a locking member-engaging portion of the second coupling member to lock the control member and the second coupling member together to prevent the control member from inadvertently shifting in a first direction relative to the second coupling member in the absence of an actuator command signal received by a bi-directional actuator assembly of the system.

Abstract: A high-speed overrunning coupling and control assembly, coupling assembly and locking member which pivotally moves with substantially reduced friction are provided. At least one pivot projects from a main body portion of the locking member and enables pivotal motion of the locking member. The at least one pivot is sized, shaped and located with respect to the main body portion so that the at least one pivot makes contact with at least one bearing located between a pocket surface of a pocket and an outer surface of the at least one pivot to reduce friction during pivotal motion.

Abstract: Overrunning, non-friction coupling and control assemblies, a switchable linear actuator device and a reciprocating electromechanical apparatus for use in the assemblies are provided. The device and apparatus control the operating mode of at least one non-friction coupling assembly. The device and apparatus have a plurality of magnetic sources which produce corresponding magnetic fields to create a net translational force. The net translational force comprises a first translational force caused by energization of at least one electromagnetic source and a magnetic latching force based upon linear position of a permanent magnet source along an axis. One or more cams are utilized to control whether a locking member either couples or uncouples its corresponding coupling assembly.

Abstract: A coupling and control assembly includes an internal latching mechanism to hold a support member and a coupling member together in position so that the support member and the second coupling member rotate together without using any energy.

Abstract: A coupling and control assembly for use in a motor vehicle such as a hybrid vehicle is provided. The assembly includes a first coupling face of an engine powertrain component or part supported by the powertrain component for rotation therewith about an axis. The first coupling face has a first set of locking formations. The assembly also includes a coupling member supported on a stationary member of the vehicle. The coupling member has a second coupling face in close-spaced opposition with the first coupling face. The assembly further includes an electromechanical actuator to move a locking element across a gap towards the first coupling face to a coupling position in response to the actuator receiving an electrical control signal. The locking element abuttingly engages one of the locking formations to prevent rotation of the powertrain component in a first direction about the axis in the coupling position.

Abstract: Overrunning coupling and control assembly and control system for use therein are provided. The system includes a control member mounted for controlled shifting movement between the coupling faces of first of second coupling members. A one-way locking member such as a detent is pivotally connected to the control member via a selector arm for movement between a disengaged position in which the control member is permitted to shift or rotate relative to the second coupling member and an engaged position between the control member and a locking member engaging portion of the second coupling member to lock the control member and the second coupling member together to prevent the control member from inadvertently shifting in a first direction relative to the second coupling member in the absence of an actuator command signal received by a bi-directional actuator subassembly including the selector arm connected to the control member.

Abstract: A switchable linear actuator device and an overrunning, non-friction, radial coupling and control assembly using the device are provided. The device has magnetic sources which produce corresponding magnetic fields to create net translational forces. The device includes a first and locking members and a stator structure including a first and second electromagnetic sources configured to create first and second electronically-switched magnetic fields, respectively. A translator structure includes first and second cams having contour surfaces and a magnetically-latching, permanent magnetic source magnetically coupled to the stator structure across a radial air gap.

Abstract: A coupling member for an engageable coupling assembly includes a coupling face having at least one pocket. Each pocket is sized and shaped to receive and nominally retain a locking member that lays down in its pocket during an overrunning condition of the assembly at a laydown angular velocity of the coupling member about a rotational axis of the assembly. Each pocket has a pocket axis which is angled with respect to a normal to a centerline of the coupling member to improve locking member dynamics with regards to strut laydown speed during the overrunning condition.

Abstract: Overrunning coupling and control assembly and control system for use therein are provided. The system includes a control member mounted for controlled shifting movement between the coupling faces of first of second coupling members. A one-way locking member such as a pawl is pivotally connected to the control member for movement between a disengaged position in which the control member is permitted to shift or rotate relative to the second coupling member and an engaged position between the control member and a locking member engaging portion of the second coupling member to lock the control member and the second coupling member together to prevent the control member from inadvertently shifting in a first direction relative to the second coupling member in the absence of an actuator command signal received by a bi-directional actuator subassembly including an output member connected to the control member.

Abstract: A selectable one-way clutch includes: a pocket plate including a plurality of accommodating recess portions formed in one surface; a plurality of engaging pieces accommodated in the respective accommodating recess portions; a notch plate relatively rotatable with respect to the pocket plate, and including a plurality of engaging recess portions formed in a surface facing the one surface of the pocket plate; and a selector plate positioned between the pocket plate and the notch plate, and configured to be coaxially rotated with the notch plate to switch between: a state in which the engaging pieces rise toward the engaging recess portions; and a state in which the engaging pieces are accommodated in the respective accommodating recess portions.

Abstract: A selectable one-way clutch includes a pocket plate having accommodating recessed portions; engaging pieces accommodated in the accommodating recessed portions; a notch plate relatively rotatable with respect to the pocket plate, and having engaging recessed portions; and a selector plate between the pocket plate and the notch plate, including window holes and switches a state where the engaging pieces pass through the window holes and rise, and a state where the engaging pieces are accommodated in the accommodating recessed portions. Further, the engaging pieces include groove portions formed in centers of the selectable one-way clutch, the selector plate includes protruding portions protruding from inner surface of the window holes, and the protruding portions are fit into the groove portions, and the engaging pieces and the selector plate are layered in a rotation axis direction of the selectable one-way clutch, when the selectable one-way clutch is not engaged.

Abstract: A coupling assembly having an overrun mode and a channeled locking member are provided. The locking member has a ramped, open channel extending through a nose and main body of the locking member to an upper face of the main body. The locking member is movable between first and second positions. The first position is a coupling position and the second position is an uncoupling position. Pressurized fluid directed to a bottom of the channel urges the locking member towards the second position upon rotation of a first member of the assembly in a first direction relative to a second member of the assembly above a predetermined RPM to prevent abutting engagement of the locking member with a shoulder of the first member in the overrun mode.