Purpose/Function
The one-way clutch operates in 1GR and suppresses the counterclockwise rotation of the front internal gear (as viewed from torque converter side).
Construction
The one-way clutch consists of a mechanical diode-type one-way clutch, inner plate, and outer plate.
The inner plate for the one-way clutch is connected to the front internal gear and the outer plate is connected to the transaxle.

Operation
The connected inner plate also rotates clockwise during the clockwise rotation of the front internal gear. Therefore, the rotation is not regulated and the inner plate spins because the strut installed to the inner plate is pressed toward the inner plate along the slope of the outer plate.
The strut engages the notch of the outer plate by the rotation of the inner plate which also rotates counterclockwise during the counterclockwise rotation of the front internal gear. Due to this, the rotation of the inner plate is regulated and the rotation of the front internal gear is suppressed.
As a result, the front internal gear suppresses the counterclockwise rotation of the rear pinion gear via the rear planetary carrier.

On/Off Solenoid [Fw6 A EL, Fw6 Ax EL]
Parking Mechanism [Fw6 A EL, Fw6 Ax EL]Automatic Transaxle Controls
Various Lockouts:
NOTE
The Sport AT has an option that is not included in the traditional automatic
transaxle giving the driver the option of selecting each gear instead of leaving
it to the transaxle to shift gears. Even if you intend to use the automatic transaxle
functions as a tradit ...
Catalytic Converter
Purpose, Function
Purifies contaminants in the exhaust gas by utilizing the chemical reactions
of the three-way catalytic converter.
A WU-TWC and a TWC have been adopted.
WU-TWC
The three-way catalyst is integrated with the exhaust manifold.
Because the c ...
Fuel Injection Control System
Outline
Performs optimum fuel injection according to engine operation conditions.
The PCM determines the engine operation conditions based on the signals from
each input device and drives the fuel injectors at the optimal fuel injection
time (fuel injection amount) and the fuel ...