Mitsubishi ECLIPSE Technical Information Manual

2-50 POWER TRAIN - Automatic Transaxle
Third Gear
Underdrive clutch applied
(turns rear sun)
Overdrive clutch applied
\.
(turns front carrier/rear annulus)
/
In third gear, two input clutches are applied to provide
torque input; the underdrive and overdrive clutches.
The underdrive clutch rotates the rear sun gear,
while the overdrive clutch rotates the front carrier/
rear annulus assembly. The result is two compo-
nents (rear sun gear and rear annulus gear) rotating
at the same speed and in the same direction. This
effectively “locks” the entire planetary gearset to-
gether and is rotated as one unit. The gear ratio
in third is 1:l.
‘d
Fourth Gear
Overdrive clutch applied
(turns rear sun)
2-4 clutch applied
(holds front sun)
In fourth gear input torque is through the overdrive
clutch which drives the front carrier. The 2-4 clutch
is applied to hold the front sun gear. As the overdrive
clutch rotates the front carrier, it causes the pinions
of the front carrier to “walk around” the stationary
front sun gear. This causes the front carrier pinions
to turn the front annulus/rear carrier assembly which
provides output torque. In fourth gear, transaxle
ii
output speed is more than engine input speed. This
situation is called overdrive. Fourth gear (overdrive)
ratio is 0.69:1.

Mitsubishi ECLIPSE Specifications

General

Brand	Mitsubishi
Model	ECLIPSE
Category	Automobile
Language	English