Mitsubishi Outlander XL. Manual — part 1278
DRIVE MODE SELECTOR
M22700000032USA0000010000
ZC5018050000
Drive mode
selector
The drive mode selector has been installed on the floor console.
When the dial is rotated with the ignition switch turned to ON
position, you can select the drive mode from FWD (2WD), AWD
(4WD), or LOCK modes.
ELECTRONIC CONTROL COUPLING
M22700000007USA0000010000
FEATURES
The electronic control coupling realizes the highly
reliable AWD system with lighter weight and simpler
construction.
CONSTRUCTION
ZC5018090000
Main clutch
Pilot clutch
Armature
Ball
Main cam
Magnet coil
Front housing
Rear housing
Rear differential
Shaft
Drive pinion
Pilot cam
The electronic control coupling is comprised of the
front housing, main clutch, main cam, ball, pilot cam,
armature, pilot clutch, rear housing, magnetic coil, and
shaft.
27-18
REAR AXLE
ELECTRONIC CONTROL AWD
⦆
The front housing is joined to the propeller shaft and
rotates along with the shaft.
⦆
The main clutch and pilot clutch are assembled to
the front housing on the outer side and to the shaft
on the inner side (The pilot clutch is installed via the
pilot cam).
⦆
The shaft is engaged via serrations with the drive
pinion of the rear differential.
OPERATION
COUPLING STOPS (FWD: MAGNETIC COIL DE-ENERGIZED.)
ZC5018100000
Main clutch
Shaft
Front housing
Propeller shaft
Pilot clutch
Drive pinion
(rear differential)
Magnet coil
The drive force from the transfer is transmitted to the
front housing connected to the propeller shaft. The
drive force is also transferred to the pilot clutch and
the outer side of the main clutch assembled to the
front housing. Because the pilot clutch and the main
clutch are not engaged with the magnetic coil de-
energized, the drive force is not transferred to the
shaft and the drive pinion of the rear differential.
REAR AXLE
27-19
ELECTRONIC CONTROL AWD
COUPLING OPERATES (AWD: MAGNETIC COIL ENERGIZED)
ZC5018100001
Main clutch
Pilot clutch
Armature
Pilot cam
Main cam
Magnet coil
Front housing
Rear housing
Shaft
Drive pinion
(rear differential)
Propeller shaft
Ball
Magnetic field
ZC5018110000
Main cam
Ball
Pilot cam
⦆
The drive force from the transfer is transmitted to
the front housing connected to the propeller shaft.
The drive force is also transferred to the pilot clutch
and the outer side of the main clutch assembled to
the front housing. When the magnetic coil is
energized, the magnetic field is generated among
the rear housing, pilot clutch, and armature. The
magnetic field induces the pilot clutch and armature
to engage the pilot clutch. When the pilot clutch is
engaged, the drive force is transferred to the pilot
cam. When there is a difference in wheel angle
between the front and rear wheels (i.e. rotation
speed of the propeller shaft is different from that of
the drive pinion), the rotation speed of the pilot cam
applied with the drive force and that of the main cam
not applied with the drive force become different.
The ball slides along the curved space between the
pilot cam and main cam by the rotational speed
difference and pushes the pilot cam and main cam.
Then, the main clutch is pushed toward the main
cam to engage. When the main clutch is engaged,
the drive force is transferred to the rear wheels via
the shaft and the drive pinion of the rear differential.
⦆
By controlling the current applied to the magnetic
coil, the amount of the drive force transferred to the
rear wheels can be controlled within the range of 0
to 100%.
27-20
REAR AXLE
ELECTRONIC CONTROL AWD
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