Mitsubishi ECLIPSE Technical Information Manual

2-48 POWER TRAIN - Automatic Transaxle
out
sha
I
Lugs for parking
pawl and output
speed sensor
annulus
gear
Rear Carrier Assembly
The rear planetary carrier, front annulus (ring) gear and output
shaft are all one assembly. The rear carrier assembly is respon-
sible for providing all output power for the transaxle assembly.
In other words, all output from the transaxle must go through
the rear carrier. The lugs around the outside of the assembly
have two purposes; to engage the parking pawl when the driver
selects “park”, and to generate an output speed signal used
by the TCM.
There are no clutches splined or connected to this unit in any
way. The rear carrier assembly is supported to the case by
two tapered roller bearings which must be set up with a specific
preload setting.
Planetary Geartrain Powerflow
The planetary gear-train in this transaxle provides
four forward gear ratios and one reverse gear ratio.
To obtain these different gear ratios, two planetary
carrier and pinion assemblies, two sun gears and
two annulus (ring) gears are used. Two shafts are
used as input to the planetary gearset, the under-
drive hub and shaft assembly, and the overdrive
hub with its shaft. The underdrive shaft protrudes
through, the center of the overdrive shaft and is
the longer of the two.
To achieve any output through the components of
this planetary gearset, the following rules apply;
At least one component must be driven or turned,
one component must be held stationary (kept from
rotating), two components must be driven at the
‘d
same speed and in the same direction, and all output
from this gearset must go through the rear carrier
assembly.
The planetary gear-train is driven by three input
d
clutches. One of the input clutches must be applied
before the vehicle can move. A variety of gear ratios
are accomplished by using different input clutches
to turn different components of the planetary gear
set. Two clutches in the rear of the case must be
used to hold specific planetary components. When
going through the following power flows, keep in
mind that the gear-train must somehow complete
its power-flow by turning the rear carrier assembly.
If the output shaft/rear carrier assembly does not
turn, the vehicle will not move.

Mitsubishi ECLIPSE Specifications

General

Brand	Mitsubishi
Model	ECLIPSE
Category	Automobile
Language	English