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Home >> Kia >> 2008 >> Optima L4-2.4L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Description and Operation
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Automatic Transmission/Transaxle: Description and Operation




DESCRIPTION

1. Structure & Technical highlights




2. Variable Line Pressure Control
a. Description
a. Form the most suitable line pressure according to the vehicle driving condition
b. Special Features
a. VFS (Variable Force Solenoid) valve(For varying line pressure)
b. Reducing valve added(Stabilize control pressure during shifting)
c. Effects
a. Improved power transmission efficiency and fuel consumption




3. Case/Housing intensity reinforced
a. Description
a. Case/Housing intensity reinforced
b. Special Features
a. Converter hosing intensity reinforced(Ribs added and thickness increased)
b. Most suitable stiff reinforcement through analyzing
c. Effects
a. Intensity increased and banding vibration decreased
b. NVH Performance improvement
4. Flat torque converter
a. Description
a. Apply a flat type torque converter
b. Special Features
a. Torque converter width decreased
b. Maximum torque increased
c. Blade design through three-dimensional flow analysis
c. Effects
a. Full length reduction
b. Weight reduction
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