SSANGYONG RODIUS 2006 Service Manual

0-8
RODIUS 2007.07
3240-01
TORQUE ON DEMAND
(3) Electro Magnetic Clutch (EMC)
EMC consists of coil and housing. TOD control unit controls EMC by controlling duty cycle
according to the road and driving conditions. These controls use the continuity time and amount
of electric current to determine the torque to be transmitted to front wheels.
Basic controls in EMC ▶

0-9
TORQUE ON DEMAND
RODIUS 2007.07
3240-01
3) Signal Flow

0-10
RODIUS 2007.07
3240-01
TORQUE ON DEMAND
4) Power Flow
(1) 4H Mode (4WD Drive - High Speed)

0-11
TORQUE ON DEMAND
RODIUS 2007.07
3240-01
(2) 4H Mode (4WD Drive - Low Speed)

0-12
RODIUS 2007.07
3240-01
TORQUE ON DEMAND
3. OPERATION
1) System Layout

0-13
TORQUE ON DEMAND
RODIUS 2007.07
3240-01
2) 4WD Operation Overview
To make the mode shift easier, stop the vehicle, depress the brake pedal, select the mode
switch, and move the selector lever with the sequence of [N-P-N].
3) Mode Switch
Selection Mode ▶
The TOD system has 2 selectable mode, 4H and 4L.
4H is the normal operating mode when drive of which gear ratio is 1:1 and 4L mode distributes
power to front and rear wheels 50:50 of which gear ratio is 2.48:1.
4L Mode ▶
When selecting 4L mode, EMC is locked to apply maximum torque into front and rear propelle
r
shafts (when the wheel speed is more than 87Hz).
Shift motor rotates also 4L position by rotation of cam thus propeller shaft torque changes from
1:1 to 2.48:1 by planetary gear set.
Releasing the 4L Mode ▶
When selecting 4H mode, 4L drive mode is
released and 4H mode is resumed.
“4H” switch: Self-return type
“4L” switch: Push lock type ·
·

0-14
RODIUS 2007.07
3240-01
TORQUE ON DEMAND
4. CIRCUIT DIAGRAM

0-33310-01
1. PROPELLER SHAFT GENERAL INFORMATION
The propeller shaft transfers the power through the
transmission and transfer case to the front/rear axle
differential carrier (final reduction gear). It is
manufactured by a thin rounded steel pipe to have
the strong resisting force against the torsion and
bending. Both ends of propeller shaft are connected
to the spider and the center of propeller shaft is
connected to the spline to accommodate the
changes of the height and length. The rubbe
r
bushing that covers the intermediate bearing keeps
the balance of rear propeller shaft and absorbs its
vibration.
2. SPECIFICATION

0-4
RODIUS 2007.07
3310-01
PROPELLER SHAFT
1. COMPONENTS AND LOCATION
1) Front Prepeller Shaft Assembly
2) Rear Prepeller Shaft Assembly
Bolt Bolt
CV joint Front propeller shaft assembly
Universial joint
Bolt/was
her/nut
Universial joint
1st rear propeller shaft
Center bearing assembly
CV joint
2nd rear propeller shaft
Universial joint
Bolt

0-3
SUSPENSION SYSTEM
RODIUS 2007.07
4111-01
4410-01SUSPENSION SYSTEM
1. FRONT SUSPENSION SPECIFICATION