A power transmission control apparatus for a vehicle c has a plurality of fork shafts coupled with “sleeves engageable with free-rotating gears”, including first and second fork shafts. When both the first and second fork shafts are in neutral positions, the first and second fork shafts are not coupled in the axial direction so that, while one fork shaft is maintained in its neutral position, the other fork shaft is movable by an actuator from its neutral position to its meshing position. When the one fork shaft is in its neutral position and the other fork shaft is in its meshing position, the first and second fork shafts are coupled in the axial direction so that, when the one fork shaft is moved from its neutral position to its meshing position by the actuator, the other fork shaft is simultaneously moved from its meshing position to its neutral position.

An L-shaped bracket (151) is fixed to a top end portion of a rack shaft (141) of a selecting actuator (133) of a transmission actuator unit (131) through a rotatable joint (152). An actuator housing (161) of a shifting actuator (134) is supported on a mounting surface (151a) of the L-shaped bracket (151) so as to be attachable to and detachable from the mounting surface (151a) through a lock mechanism (154) (a lock pin (155) and a lock hole (162a)). The shifting actuator (134) can be mounted with the shifting actuator (134) being reversed 180 degrees.

An L-shaped bracket (151) is fixed to a top end portion of a rack shaft (141) of a selecting actuator (133) of a transmission actuator unit (131) through a rotatable joint (152). An actuator housing (161) of a shifting actuator (134) is supported on a mounting surface (151a) of the L-shaped bracket (151) so as to be attachable to and detachable from the mounting surface (151a) through a lock mechanism (154) (a lock pin (155) and a lock hole (162a)). The shifting actuator (134) can be mounted with the shifting actuator (134) being reversed 180 degrees.

An electro-mechanical transmission shifter preferably includes a first actuator, a second actuator, a shift linkage device, actuator mounting bracket, a programmable controller and a gear shift remote. The shift linkage device includes a mounting base plate, a first transmission shifting bracket, a second transmission shifting bracket and a linkage rod. The linkage rod couples the first and second transmission shifting brackets. The actuation rods of the first and second actuators are pivotally connected to the first and second transmission shifting brackets, respectively. A mounting end of the first and second actuators are retained on the actuator mounting bracket with first and second clevis blocks. The programmable controller receives a signal from a gear selector remote to change a gear in a transmission. The programmable controller also monitors the electrical current sent to the first and second actuators.

An electro-mechanical transmission shifter preferably includes a first actuator, a second actuator, a shift linkage device, actuator mounting bracket, a programmable controller and a gear shift remote. The shift linkage device includes a mounting base plate, a first transmission shifting bracket, a second transmission shifting bracket and a linkage rod. The linkage rod couples the first and second transmission shifting brackets. The actuation rods of the first and second actuators are pivotally connected to the first and second transmission shifting brackets, respectively. A mounting end of the first and second actuators are retained on the actuator mounting bracket with first and second clevis blocks. The programmable controller receives a signal from a gear selector remote to change a gear in a transmission. The programmable controller also monitors the electrical current sent to the first and second actuators.

A control apparatus for a vehicular transmission including at least one dog clutch each having a first dog member mounted on a first shaft such that the first dog member is rotated together with the first shaft, and at least one second dog member each mounted to be axially adjacent to the first dog member and rotatable relative to the first shaft, first gears each mounted to be rotatable relative to the first shaft and provided with the second dog member, second gear which are mounted such that the second gears are rotated together with a second shaft parallel to the first shaft, and which mesh with the respective first gears, and a shifting mechanism for selectively placing each dog clutch in an engaged or released state. The control apparatus includes: a first calculating portion for detecting to a rotary angular position of the first shaft, and calculating a rotary angular position of the first dog member on the basis of the detected rotary angular position of the first shaft; a second calculating portion for detecting a rotary angular position of the second shaft, and calculating a rotary angular position of each second dog member on the basis of the detected rotary angular position of the second shaft; and an engagement control portion for controlling the shifting mechanism on the basis of the rotary angular positions of the first and second dog members, for engagement of the first and second dog members with each other.

An electro-mechanical transmission shifter preferably includes a first actuator, a second actuator, a shift linkage device, actuator mounting bracket, a programmable controller and a gear shift remote. The shift linkage device includes a mounting base plate, a first transmission shifting bracket, a second transmission shifting bracket and a linkage rod. The linkage rod couples the first and second transmission shifting brackets. The actuation rods of the first and second actuators are pivotally connected to the first and second transmission shifting brackets, respectively. A mounting end of the first and second actuators are retained on the actuator mounting bracket with first and second clevis blocks. The programmable controller receives a signal from a gear selector remote to change a gear in a transmission. The programmable controller also monitors the electrical current sent to the first and second actuators.

Disclosed herein is a gear actuator for a double clutch transmission, which includes a power module (100), including odd and even-numbered stage select solenoids and shift motors, a controller directly connected to them, and select levers connected to select rods of the select solenoids, shift modules (200) for transmitting the rotational forces of the shift motors to a control shaft assembly (300), the control shaft assembly (300) for transmitting the operating force of the power module (100) to a shift lug, and a body housing (400) having the power module (100), the shift modules (200), and the control shaft assembly (300) installed therein. Accordingly, the gear actuator can have a more compact structure and be easily assembled by modularization.

The transmission includes at least ten gear-selection pressure chambers which are provided for the selection of a plurality of transmission gears, at least two actuation valves, each of which is provided for setting at least one actuation pressure for the gear-selection pressure chambers, at least one first selection valve unit, at least one second selection valve unit, and at least one third selection valve unit which are provided for connecting the actuation valves to the gear-selection pressure chambers. The second selection valve unit is directly connected to four gear-selection pressure chambers in order to transmit actuation pressure and the third selection valve unit is directly connected to six other gear-selection pressure chambers and directly to the second selection valve unit in order to transmit actuation pressure.

The manual transmission includes a shift select shaft, a connecting member, a lever member, a guide pin and a guide plate, wherein the connecting member, the lever member, the guide pin and the guide plate are arranged so that under a state that the guide pin and the guide plate are engaged at the engaging portion, assuming that the portion of the shift select shaft is a fulcrum, the connecting portion is a point of effort, the engaging portion is a point of load and that the fulcrum, the point of effort and the point of load exist on a same virtual plane, an operation direction of a reaction force generated at the point of load becomes a direction opposite to the operation direction of the operation force inputted to the point of effort.