Sportage 4WD 2Dr L4-2.0L (2002)
direct drive from the turbine to the forward clutch input shaft.
In overdrive, the overdrive clutch is released and the overdrive brake is applied. This holds the overdrive clutch housing and the overdrive sun gear.
The driving force of the engine is then transferred through the carrier (which rotates around the sun gear). The clockwise rotation of the carrier
overruns the sprag. This allows free movement of the carrier, permitting overdrive.
One-Way Clutch No. 1
One-Way Clutch No. 1
One-way clutch No. 1 prevents the sun gear from rotating counter-clockwise. This occurs only when the second brake is applied in 2nd, 3rd and
overdrive.
The outer race of one-way clutch No. 1 is actually the second brake hub; the inner race is the sun gear.
When the second brake is not applied, the sun gear rotates counter-clockwise as in 1st and reverse. The sprags are overrun.
However, when the second brake is applied, the outer race (second brake hub) is held. The sun gear attempts to continue turning counter-clockwise as
in 1st gear, but the sprags bind the second brake and the sun gear, preventing counter-clockwise rotation.
One-Way Clutch No. 2
One-Way Clutch No. 2
One-way clutch No. 2 prevents the front planetary carrier from turning counter-clockwise. It is used in 1st gear, primarily for breakaway.
The outer race is the front planetary carrier; the inner race is the Low and Reverse Brake reaction plate.
When the vehicle starts to move, the forward clutch drives the rear planetary ring gear. This makes the sun gear rotate counter-clockwise. The front
planetary carrier then attempts to turn counter-clockwise also. The sprags bind and prevent this. Therefore, the driving force is transferred to the
output shaft via the front planetary ring gear.
In all other driving gears, the sun gear rotates clockwise, which overruns the sprags. During deceleration, the front carrier is driven clockwise by the
output shaft, which also overruns the sprags. This means there is no engine braking in Drive or 2nd, first gear or Drive, second gear.
In L, the Low and Reverse Brake prevents any rotation of the front carrier. Even though one-way clutch No. 2 is engaged, it does not provide any
engine braking assistance during deceleration.
