Automatic Transmission/Transaxle: Description and Operation

Cross-sectional View

Hydraulic Control Circuits

Shift Mechanism
The automatic transmission uses compact, dual planetary gear systems to improve power-transmission efficiency, simplify construction and reduce weight.
It also employs an optimum shift control and super wide gear ratios. They improve starting performance and acceleration during medium and high-speed operation.
Two one-way clutches are also employed: one is used for the forward clutch and the other for the low clutch.
These one-way clutches, combined with four accumulators, reduce shifting shock to a minimum.

CONSTRUCTION

FUNCTION OF CLUTCH AND BRAKE

CLUTCH AND BAND CHART

POWER TRANSMISSION
"N" and "P" positions

- "N" position
No control members operate. Power from the input shaft is not transmitted to the output shaft since the clutch does not operate.
- "P" position
Similar to the "N" position, no control members operate. The parking pawl interconnected with the select lever engages with the parking gear to mechanical; hold the output shaft so that the powertrain is locked.

"1[1]" position