Mitsubishi Outlander (2013+). Manual - part 55
ELECTRONICALLY CONTROLLED 4WD
REAR AXLE
27-15
Coupling operates (4WD: Magnetic coil energized.)
• 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 mag-
netic coil is energized, the magnetic field is gen-
erated 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 rotation speed 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 differ-
ence 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%.
AC505106AD
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
AC507947
AD
Main cam
Ball
Pilot cam