2012 SSANGYONG NEW ACTYON SPORTS clutch

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Pressure Modulation ▶
To provide a higher level of shift comfort and durability, the hydraulic pressure in the shift related
friction elements of the transmission must be matched accurately to the input torque to
transmission. This hydraulic pressure is composed of a hydraulically pre-set basic pressure and a
control pressure which is set by one of the variable bleed solenoids.
The transmission input torque can be directly calculated from the following operating parameters:
engine torque signals
engine speed or any signal transmitted from ECU through CAN lines
converter slip -
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Separate pressure characteristics for each gear change make it possible to adapt precisely to the
particular shift operation.
5) Shift Mode Selection by TCU
The driver can select Standard (S) or Winter mode (W) with the mode switch. TCU automatically
changes the shift mode according to the transmission oil temperature, uphill or downhill gradient,
and altitude to keep the good driving conditions.
Standard Mode (S) ▶
Uphii and Downhill Mode ▶
Altitude Mode ▶ Standard Mode is selected when setting the mode switch in Standard (S) position with the gear
<009a008c0093008c008a009b00470093008c009d008c0099004700900095004702c8006b02c9004700880095008b0047009b008f008c0047009b009900880095009a00940090009a009a00900096009500470096009000930047009b008c00940097008c00
990088009b009c0099008c0047009000950047009500960099>mal operating range. Proper shift
timing provides the optimized fuel economy and good driving conditions.
In this mode, the operating points of torque converter lock-up clutch and the shifting points are
adjusted according to the vehicle weight.
In this mode, the shifting points are automatically adjusted according to the altitude to compensate
the engine torque changes due to barometric pressure and temperature.

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6. POWER FLOW
Power flows in gears:
Power flow - 1st gear (M)
Power flow - 1st gear (D)
Power flow - 2nd gear (D)
Power flow - 2nd gear (D) ? lockup (D)
Power flow - 3rd gear (D)
Power flow - 4th gear (D) - 4th gear (D) in Limp home mode
Power flow - 5th gear (D)
Power flow - 6th gear (D) -
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GearGear ratioEngaged element (clutch & band)
C1 C2 C3 B1 B2 1-2OWC
M1 3.53 ON ON
1st 3.53 ON ON
2nd 2.14 ON ON
3rd 1.48 ON ON
4th 1.16 ON ON
5th 0.87 ON ON
6th 0.68 ON ON
Reverse -3.09 ON ON
Gear
S1 S2 S3 S4 S5(A) S6(A) S7(A) S8(A) S9(A) S10(A)
M1 ON 1 0 1
1st ON 1 0 0-1
2nd ON ON 1 0 1 0-1
3rd ON ON 1 0 1 0-1
4th 0 0 0-1
5th ON 0 1 1 0-1
6th ON ON 0 1 1 0-1
Reverse ON ON ON 1 1 1 0-1
Gear Selection and Engaged Element ▶
Variable bleed solenoid valve - VBS ON/OFF solenoid valve

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1) Power Flow - Manual (M Position)
Functioning elements ▶
Control ▶C2 applied, FSG (Forward Sun Gear)
driven
B2 applied to hold Rear Planet Carrier
stationary
Provides engine breake effect -
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-
S1 ON, C1 shift valve moved to the left end, C1 clutch not engaged
S1 ON, B2 shift valve moved to the left end, B2 band operated (S7 should be ON)
C2 shift valve open (S2 OFF), C2 clutch engaged by drive oil
Drive oil (for C2 clutch engagement) is regulated by VBS S6 -
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Connecting Components ▶
Gear
ratioON / OFF solenoids Variable pressure sol. valve-VBS
S1 S2 S3 S4 S5(A) S6(A) S7(A) S8(A) S9(A) S10(A)
3.53 ON 1 0 1 0-1
Gear
ratioEngaged element
C1 C2 C3 B1 B2 OWC Lock-up
clutch
AO AI R AO AI
3.53 ON ON ON
Power Flow Diagram ▶
Manual 1st gear is not engaged even when
moving the manual valve to a certain position.
This gear state is obtained electronically by
solenoids S1 and S7.

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2) Power Flow - 1st Gear (D)
Functioning elements ▶
Control ▶C2 applied, FSG (Forward Sun Gear) driven
1-2 OWC (One-Way Clutch) operated to hold Rear Planet Carrier stationary -
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S1 ON, S2 OFF
S1 ON, C1 shift valve moved to the left end, C1 clutch not engaged
C2 shift valve open (S2 OFF), C2 clutch engaged by drive oil
Drive oil (for C2 clutch engagement) is regulated by VBS S6 -
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-
Connecting Components ▶
Gear
ratioON / OFF solenoids Variable pressure sol. valve-VBS
S1 S2 S3 S4 S5(A) S6(A) S7(A) S8(A) S9(A) S10(A)
3.53 ON 1 0 0-1
Gear
ratioEngaged element
C1 C2 C3 B1 B2 OWC Lock-up
clutch
AO AI R AO AI
3.53 ON ON
Power Flow Diagram ▶

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3) Power Flow - 2nd Gear (D)
Functioning elements ▶
Control ▶C2 applied, FSG (Forward Sun Gear) driven
B1 applied to hold Rear Planet Carrier stationary -
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S1 ON, S4 ON, S2 OFF
S1 ON, C1 shift valve moved to the left end, C1 clutch not engaged
C2 shift valve open (S2 OFF), C2 clutch engaged by drive oil
Drive oil (for C2 clutch engagement) is regulated by VBS S6
S4 ON, B1 shift valve moved to the left end, B1 band operated
Drive oil (for B1 band engagement) is regulated by VBS S6 -
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Connecting Components ▶
Gear
ratioON / OFF solenoids Variable pressure sol. valve-VBS
S1 S2 S3 S4 S5(A) S6(A) S7(A) S8(A) S9(A) S10(A)
2.14 ON ON 1 0
10-1
Gear
ratioEngaged element
C1 C2 C3 B1 B2 OWC Lock-up
clutch
AO AI R AO AI
2.14 ON ON
Power Flow Diagram ▶

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4) Power Flow - 2nd Gear (D) Lock-Up
Connecting Components ▶
Gear
ratioON / OFF solenoids Variable pressure sol. valve-VBS
S1 S2 S3 S4 S5(A) S6(A) S7(A) S8(A) S9(A) S10(A)
2.14 ON ON ON 1 0 0 1 0-1 1
Gear
ratioEngaged element
C1 C2 C3 B1 B2 OWC Lock-up
clutch
AO AI R AO AI
2.14 ON ON
Power Flow Diagram ▶

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5) Power Flow - 3rd Gear (D)
Functioning elements ▶
Control ▶C2 applied, FSG (Forward Sun Gear)
driven
C3 applied, Rear Planet Carrier driven
Rear Planet Gear Set is locked and its
output has the same gear ratio with
Front Gear Set. -
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-
S1 ON, C1 shift valve moved to the left end, C1 clutch not engaged
C2 shift valve open (S2 OFF), C2 clutch engaged by drive oil
S3 and S7 ON, C3 shift valve moved to the left end, C3 clutch engaged -
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-
Connecting Components ▶
Gear
ratioON / OFF solenoids Variable pressure sol. valve-VBS
S1 S2 S3 S4 S5(A) S6(A) S7(A) S8(A) S9(A) S10(A)
1.48 ON ON 1 0 1 0-1
Gear
ratioEngaged element
C1 C2 C3 B1 B2 OWC Lock-up
clutch
AO AI R AO AI
1.48 ON ON
Power Flow Diagram ▶
C3 clutch cannot be engaged if S7 is OFF
and the oil pressure is not supplied to C3
regulator valve.

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6) Power Flow - 4th Gear (D) & 4th Gear (D) in Limp Home Mode
Functioning elements ▶
Control ▶C2 applied, FSG (Forward Sun Gear)
driven
C1 applied, Rear Planet Carrier driven -
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S1 and S2 ON
C1 shift valve open (S1 OFF), C1 clutch engaged by drive oil
C2 shift valve open (S2 OFF), C2 clutch engaged by drive oil
Drive oil (for C1 and C2 engagement) is regulated by VBS S6 and S6 -
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Connecting Components ▶
Gear
ratioON / OFF solenoids Variable pressure sol. valve-VBS
S1 S2 S3 S4 S5(A) S6(A) S7(A) S8(A) S9(A) S10(A)
1.16 0 0 0-1
Gear
ratioEngaged element
C1 C2 C3 B1 B2 OWC Lock-up
clutch
AO AI R AO AI
1.16 ON ON
Power Flow Diagram ▶
4th gear is used as Limp Home Mode.