Automatic Transmission/Transaxle: Description and Operation

DESCRIPTION

1. Structure & Technical highlights




2. Variable Line Pressure Control
A. Description
- Form the most suitable line pressure according to the vehicle driving condition
B. Special Features
- VFS (Variable Force Solenoid) valve (For varying line pressure)
- Reducing valve added(Stabilize control pressure in shiftings)
C. Effects
- Improved power transmission efficiency and fuel consumption




3. Gear durability improvement and less-noisy gear development
A. Description
- Optimal gear transmission ratio design from analyzing gears
B. Special Features
- Apply High-strength gear material
- Gear teeth width increased
- Planetary gear (3 pinions -> 4 pinions)
- Less-noisy gear development
C. Effects
- Durability improvement
- Reduction of noise level
4. Case/Housing intensity reinforced
A. Description
- Case/Housing intensity reinforced
B. Special Features
- Converter housing intensity reinforced(Ribs added and thickness increased)
- Most suitable stiff reinforcement through analyzing
C. Effects
- Intensity increased and banding vibration decreased
- NVH Performance improvement
5. New frictional material
A. Description
- Apply new frictional material for capacity and durability improvement
B. Special Features
- SSP (Single Sided Plate) applied only on overdrive clutch and 2nd brake
- Apply the next generation frictional material(BWA 6100/D 0880-88)
C. Effects
- Thermal absorption capacity improvement
- Energy capacity and durability improvement


MECHANICAL SYSTEM

CLUTCHES AND BRAKES FOR EACH RANGE





(X : Locked when driving)

FUNCTIONS OF CLUTCHES AND BRAKES






AUTOMATIC TRANSAXLE HYDRAULIC CIRCUIT

P/N





D(1 RANGE)





D(2 RANGE)





D(3 RANGE)





D(4 RANGE)





D(5 RANGE)





R RANGE