An overrunning, non-friction coupling and control assembly, an engageable coupling assembly and locking members for use in the assemblies are provided. A centroid or center of mass of at least one of the locking members is offset from a pivot axis of the locking member so that as the locking member moves from an engaged position, a moment arm of the centroid relative to the pivot axis decreases from a maximum value to substantially zero in a disengaged position to facilitate disengagement of the locking member at high rotational speeds.

Drive systems or powertrains including transmissions for electric and hybrid electric vehicles are provided. In some embodiments, dynamic, 2-position linear motor, one-way clutches are provided. In other embodiments, 3-position linear motor, 2-way clutches are provided. In a fixed speed ratio operating mode of an electric vehicle powertrain, torque values for two electric motors are determined by control logic to optimize overall efficiency of the motors. In a fixed torque ratio operating mode of the powertrain, speed values for the two motors are determined to optimize overall efficiency. A hybrid electric powertrain of at least one embodiment uses the optimized electric vehicle powertrain, an engine and the one-way and 2-way clutches to obtain a highly optimized hybrid powertrain.

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.

A synchronizing device is provided for synchronizing a first rotatable part with a second rotatable part adjacent to the first rotatable part. The synchronizing device includes a first part provided with an engaging sleeve and a second part provided with a synchronizer ring. The synchronizing device has at least one positioning resilient member which is arranged to act upon the synchronizer ring and the second part, in order to allow a design with few parts and also to resynchronize the synchronizing ring with the second part. A transmission including such a synchronizing device is also provided.

A transmitter for a synchronizing assembly of a manual transmission has a transmitter disk and at least one clutch disk which is arranged on a side surface of the transmitter disk. The clutch disk and the transmitter disk are fixedly connected together by local welding points. A method for producing a transmitter for a synchronizing assembly of a manual transmission consists of providing a clutch disk and a transmitter disk. Then, the clutch disk and the transmitter disk are fastened together by means of projection welding. Finally, the thus formed assembly is hardened.

Provided is a dog clutch mechanism that can guarantee a successful engaging operation regardless of relative rotational positions of a sleeve and a transmission gear, with a simple and inexpensive configuration. When sliding of a sleeve (20) toward a transmission gear (30) involves contact (abutting) between dog teeth (21b) of the sleeve (20) and key members (50), an engaged state is achieved so that a rotation shaft (2) and the transmission gear (30) integrally rotate, with the key members (50) retracted toward the transmission gear (30) to a retracted position against biasing force of a coil spring (55), and the dog teeth (21b) fit in keyway (51) between the plurality of key members (50). Thus, the dog clutch mechanism (1) guarantees the successful engagement with only a single engagement operation.

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.

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.