Electronic, high-efficiency vehicular transmission, overrunning, non-friction coupling and control assembly and switchable linear actuator device for use therein

An electronic, high-efficiency, vehicular transmission comprising:

• first and second input shafts and a transmission output shaft;
• a first group of forward gears supported on the first input shaft for rotation therewith;
• a second group of forward gears supported on the second input shaft for rotation therewith;
• a third group of forward gears which correspond to the first and second groups of forward gears and which connect with the output shaft;
• an electric motor having an output shaft connecting with the input shafts for changing angular velocity of the input shafts in response to an electrical signal during a shift to obtain a desired transmission ratio;
• a non-friction, controllable, first coupling assembly having a first coupling state for coupling the electric motor to the first input shaft and a second coupling state for coupling the electric motor to the second input shaft, the first coupling assembly being non-hydraulically controlled to change state;
• and
• at least one non-friction, controllable, second coupling assembly, each second coupling assembly having a first coupling state for coupling an input target gear on one of the input shafts to an output target gear on the transmission output shaft and a second coupling state for uncoupling the target gears, each second coupling assembly being non-hydraulically controlled.