SsangYong Korando III (2010 year). Service manual — part 525

02-16

3) Shift Map Selection

The driver can manually select between normal (S) and winter modes (W) via the mode switch.

Depending on the transaxle temperature, uphill and downhill grades and altitude, shift maps will be

selected by the TCU to suit the driving conditions. The following maps are available.

Standard (Normal) Mode

▶

Normal Mode is selected when the lever is in the D position with the mode switch in the normal (S)

position and the transaxle is within normal temperature ranges. Shift schedule points are optimised for

fuel efficiency and general driving conditions.

Uphill and Downhill Mode

▶

In this mode, depending on the load of the vehicle, adaptive shift maps are selected to progressively

adjust the shift points and torque converter lock points.

Altitude Mode

▶

Shift points are automatically adjusted at higher altitudes to compensate for changes in engine torque

where the torque produced by the engine is greatly reduced by the effects of reduced barometric

pressure and temperature.

Winter (W) Mode

▶

When winter mode is selected, starting in second gear is facilitated and the WINTER mode indicator

light is switched ON. To prevent wheel spin on slippery surfaces, the transmission will not allow first gear

unless manually overridden.

Warm up Schedule

▶

Used typically when transaxle fluid temperature is below 20°C.
The torque converter will not lock-up below 20°C to assist in transaxle warm-up.

Hot Mode

▶

The hot mode is progressively applied between temperatures of 110° ~ 200°C. The torque

converter lock-up is increased to prevent heat generation by the torque converter.

Activation of the hot mode inhibits other transmission performance features including uphill and downhill

compensation and altitude compensation. Some degradation in shift feel may be experienced as the

torque converter is not unlocked during shifting.

Cruise Control Mode

▶

When cruise control is activated the engine ECU may request the transaxle to downshift under trailing

throttle conditions to increase engine braking.

Above 110℃

the electrical radiator fans are switch ON

Above 130℃

the engine torque will be reduced and the W light on the instrument cluster will flash

Above 200℃

the transaxle will neutralise until the fluid temperature falls below 200°C as a final
protection.

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3680-01

6. CAN NETWORK

The TCU sends signals to be used by other vehicle systems via the CAN bus, such as:

Selector lever position

Selected gear state

Manual mode activation

Output torque

Transaxle fluid temperature

Engine torque reduction requests

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Schematic Diagram of Network Communication

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02-18

7. POWER TRANSFER

Power transfer modes are as follow:

Manual: 1st gear (position M)

Drive: 1st gear

Drive: 2nd gear

Drive: 3rd gear

Drive: 4th gear - limp home mode

Drive: 5th gear

Drive: 6th gear

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1) Gear Selection and Engagement Element

Gear

Gear ratio

Engagement element (clutch/band)

C1

C2

C3

B1

B2

1-2 OWC

M1

4.156

ON

ON

1st

4.156

ON

ON

2nd

2.375

ON

ON

3rd

1.522

ON

ON

4th

1.144

ON

ON

5th

0.859

ON

ON

6th

0.676

ON

ON

Reverse

3.178

ON

ON

Gear

ON/OFF solenoid valve

Variable bleed solenoid valve (VBS)

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

Rev.

ON

ON

ON

1

1

1

0-1

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3680-01

2) Power Flowing Sequence

Torque converter

Input shaft

Front planetary gear

C2 clutch

Forwarding sun gear

Rear planetary gear

C1 clutch

Center support

Intermediate shaft

assembly

inal reduction and

differential gear

This is a fluid clutch.

Transfers the power from

engine to transaxle and

amplifies the torque.

Transfers the power

from torque converter

to front planetary

gear.

Generates the gear

ratio and transfers the

power.

Engaged by hydraulic

pressure and transfers the

power to C1 clutch.

Transfers the power from

torque converter to rear

planetary gear.

Generates the gear ratio

and transfers the power.

Engaged by hydraulic

pressure and transfers the

power to C1 clutch.

Transfers the power from

input shaft to intermediate

shaft.

Changes the rotating direction

and generates the final

reduction rear ratio.

Generates the final reduction gear ratio and performs

the differential function.

Transfers the power to constant velocity shaft.