2013 SSANGYONG TURISMO wheel torque

02-38
Torque change curve of engine and drive shaft
Compression stroke Combustion stroke
Small changes from engine (k):
Damper increases the torque changes to clutchLarge changes from engine (j):
Damper decreases the torque changes to
transaxle by absorbing the impact
3) Operation
Compensating the irregular operation of engine: The secondary flywheel operates almost evenly
so does not cause gear noises
The mass of the primary flywheel is less than conventional flywheel so the engine irregularity
increases more (less pulsation absorbing effect).
Transaxle protection function: Reduces the torsional vibration to powertrain (transaxle) by reducing
the irregularity of engine. -
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4) Features
Reduced vibration noise from the powertrain by blocking the torsional vibrations
Enhanced vehicle silence and riding comforts: reduced engine torque fluctuation
Reduced shifting shocks
Smooth acceleration and deceleration -
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5) Advantages
Improved torque response by using 3-stage type spring: Strengthens the torque response in all
ranges (low, medium, and high speed) by applying respective spring constant at each range.
Stable revolution of the primary and secondary wheel by using planetary gear: Works as auxiliary
damper against spring changes
Less heat generation due to no direct friction against spring surface: Plastic material is covered on
the spring outer surface
Increased durability by using plastic bushing (extends the lifetime of grease) -
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6) Drive Plate
Drive plate receives the power from the start motor when starting the engine. With this, the drive plate
initially drives the power train system. And, it is connected to the torque converter to transfer the engine
torque to the power train system.
Trigger ring
Drive plate
Components ▶

06-211914-01
Control
rangeTurbocharger
driving
mechanismControl
methodEffectImproved
performance
At low
speedNarrows the
flow passage fo
r
the exhaust gas
by folding the
vanesThe flow rate is
increased as the
exhaust gas passes
the narrow passage
→ Increased
turbine & impeller
speed, Increased
compressive forceImproved
low speed torque
4. OPERATING PRINCIPLES
The E-VGT is designed to get more improved engine power in all ranges by controlling the turbine as
follows:
1) How it Works at Low Speed
Normal turbocharger cannot get the turbo effect because the amount of exhaust gas is not enough
and the flow speed is slow in a low speed zone, but VGT allows the flow passage of exhaust to narrow,
resulting in increasing the flow speed of exhaust gas and running the turbine quickly and powerfully.
Therefore, as VGT can intake more air than normal turbocharger, it can give the benefit of the
increased output even in a low speed zone.
Turbocharger lag
The turbocharger is at idle speed when there is no load or it is in the normal driving condition. During
this period, the amount of exhaust gas passing through the turbine is not enough to turn the
compressor wheel (impeller) fast. Therefore, the intake air is not compressed as needed. Because
of this, it takes time for turbocharger to supply the additional power after the accelerator pedal is
depressed. This is called "turbocharger lag".Basic principle at low speed
At low speed, it utilizes the principle of venturi.
For example, when air flows through the venturi
tube, the flow speed is faster and the pressure
is lower at the point "A". In this case, if the inner
diameter of venturi is more narrowed, the flow
speed is so much faster (refer to the equation). ※

01-113650-01
▶1st Gear (3.932)
Torque converter lockup clutch
Engine speed
Transmission, input shaft
1st gear ratio
2nd gear ratio 16.
A.
B.
C.
D. 3rd gear ratio
Mounting elements
Rear planetary gear set
Stator E.
F.
H.
L.Center planetary gear set
Impeller
Turbine wheel
Front planetary gear set M.
P.
T.
V.
Input shaft: Clockwise rotation
Front sun gear: Locked by F1 and B1, Planetary gear carrier: Rotation with reduced speed
Rear ring gear: Counterclockwise rotation
Rear sun gear: Locked by F2 and B2, Planetary gear carrier: Clockwise rotation with reduced
speed
Center ring gear: Clockwise rotation
Center sun gear: Locked by B2, Rotation with reduced speed
Output shaft: Clockwise rotation -
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Gear C1 C2 C3 B1 B2 B3 F1 F2 Lockup clutch
1● ● ● ● ●
3) 3)
3) Overrun

01-12
▶2nd Gear (2.408)
Torque converter lockup clutch
Engine speed
Transmission, input shaft
1st gear ratio 16.
A.
B.
C.2nd gear ratio
Mounting elements
Rear planetary gear set
Stator D.
E.
H.
L.Center planetary gear set
Impeller
Turbine wheel
Front planetary gear set M.
P.
T.
V.
Input shaft: Clockwise rotation
Sun gear and planetary gear carrier: Clockwise rotation by C1 activation
Rear ring gear: Clockwise rotation
Rear sun gear: Locked by F2 and B2, Planetary gear carrier: Rotation with reduced speed
Center ring gear: Clockwise rotation
Sun gear: Locked by B2, Planetary gear carrier: Rotation with reduced speed
Output shaft: Clockwise rotation -
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Gear C1 C2 C3 B1 B2 B3 F1 F2
2 ● ● ● ●
3)
3) Overrun

01-133650-01
▶3rd Gear (1.486)
Torque converter lockup clutch
Engine speed
Transmission, input shaft
1st gear ratio 16.
A.
B.
C.Mounting elements
Rear planetary gear set
Stator
Center planetary gear set D.
H.
L.
M.Impeller
Turbine wheel
Front planetary gear set P.
T.
V.
Input shaft: Clockwise rotation
Front ring gear: Clockwise rotation
Center ring gear: Clockwise rotation by clutch 2 activation (direct connection)
Center sun gear: Locked by B2, Planetary gear carrier: Clockwise rotation with reduced
speed
Output shaft: Clockwise rotation -
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Gear C1 C2 C3 B1 B2 B3 F1 F2
3 ● ● ●

01-14
▶4th Gear (1.000)
Torque converter lockup clutch
Engine speed
Planetary gear set 16.
A.
B. Stator
Center planetary gear set
Impeller L.
M.
P.Turbine wheel
Front planetary gear
set T.
V.
Input shaft: Clockwise rotation
Front ring gear: Clockwise rotation
Center ring gear and rear planetary gear carrier: Clockwise rotation
Front sun gear and planetary gear carrier: Clockwise rotation (direct connection)
Rear ring gear: Clockwise rotation
Rear sun gear: Rotation by ring gear and planetary gear carrier (direct connection)
Center ring gear: Clockwise rotation by C3 activation
Planetary gear carrier: Clockwise rotation by center sun gear and ring gear (direct
connection)
Output shaft: Clockwise rotation -
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Gear C1 C2 C3 B1 B2 B3 F1 F2
4 ● ● ●

01-153650-01
▶5th Gear (0.830)
Torque converter lockup clutch
Engine speed
Transmission, input shaft
1st gear ratio 16.
A.
B.
C.
D.2nd gear ratio
3rd gear ratio
Mounting elements
Rear planetary gear set
Stator E.
F.
H.
L.Center planetary gear set
Impeller
Turbine wheel
Front planetary gear set M.
P.
T.
V
Input shaft: Clockwise rotation
Front sun gear: Locked, Planetary gear carrier: Rotation with reduced speed
Rear planetary gear carrier: Clockwise rotation with reduced speed
Center ring gear and rear planetary gear carrier: Clockwise rotation by clutch C2 activation
Rear sun gear: Clockwise rotation because rear planetary gear carrier rotates faster than
rear ring gear (increased speed)
Center sun gear: Clockwise rotation with increased speed by C3 activation
Center planetary gear carrier: Clockwise rotation (increased speed)
Output shaft: Clockwise rotation (increased speed) -
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Gear C1 C2 C3 B1 B2 B3 F1 F2
5 ● ● ● ●
3)
3) Overrun