Fifth Gear
Fifth GearOutline
^ The driving force of the input shaft is transmitted to the front planetary carrier via the high clutch, causing it to rotate counterclockwise.
As a result, the front pinion gear rotates counterclockwise. This rotation causes the front internal gear to rotate at an increased speed and the rear planetary carrier to rotate counterclockwise. The driving force of the rear planetary carrier, whose speed has also been increased, is transmitted to the output gear.
^ The driving force of the idler gear is transmitted to the reduction internal gear, causing the reduction pinion gear to rotate clockwise.
^ As the direct clutch is engaged, the reduction sun gear and reduction planetary carrier rotate at the same speed, and so the reduction pinion gear, which rotates with them as a unit instead of on its axis, transmitting the driving force to the driving wheels.
^ During deceleration, engine braking is transmitted in the opposite direction.
Operation
^ With shift solenoid B OFF, spring force is applied to the upper end of shift valve B, and shift valve B is positioned on the lower side.
^ With shift solenoids A and C ON, pilot pressure is applied to every bottom end of shift valve A, and shift valve C is positioned on the upper side.
^ Line pressure is applied to the 2-4 accumulator, and engages the 2-4 brake through shift valve B, and shift valve A.
^ Line pressure is applied to the high clutch accumulator, and engages the high clutch through shift valve B, shift valve C, and shift valve A.
^ Line pressure is applied to the direct clutch accumulator, and engages the direct clutch through shift valve B and shift valve A.
^ Line pressure delivered to the pressure regulator valve is sent to the torque converter through the TCC control valve as torque converter pressure.
