Automatic transmission having hydraulic and electronic control systems

摘要

A transmission which is controlled by an electronic control unit for gear shift operation, said transmission comprising a shift actuator including a plurality of shift shafts for effecting engagement and disengagement of the transmission gears to accomplish a plurality of shift ranges and the same number of cylinders each being operatively connected with respective one of said shift shafts, said shift actuator being controlled by the signals from the electronic control unit for effecting the gear shift operation. Each of said shift shafts is operatively connected with a respective piston disposed in each cylinder by means of a select lever assigned to the piston and the shift shaft. The shift shafts axially move to engage and disengage the transmission gears. The cylinders are disposed parallel or coaxial with the shift shafts.