SSANGYONG Korando 2013 Manual page 1027

5. TRANSAXLE ELECTRONIC CONTROL SYSTEM
1) General Information
The transmission control unit (TCU) and its input/output network control the following transmission
operations:
- Shift timing
- Line pressure
- Clutch pressure (shift feel)
- Torque converter clutch
also uses these signals when determining transaxle operating strategy. Using all of these input signals,
the TCU can determine when the time and conditions are right for a shift, or when to apply or release the
torque converter clutch. It will also determine the pressure needed to optimise shift feel.
2) TCU (Transmission Control Unit)
The TCU monitors all TCU inputs and outputs to confirm correct system operation. If a fault occurs the
TCU is able to perform default action and inform the driver of the problem through the instrument cluster
warning lights. Detailed information is available via trouble codes which can be read with the service tool.
The transaxle control unit (TCU) is mounted
under the driver's seat and controls the operation
of the transaxle.
Internal sensors and signals received across the
CAN bus in analogue and digital forms such as:
- Transaxle input speed
-
Transaxle output speed
- Accelerator pedal position
- Gear selector position
-
Engine torque
- Engine speed
- Transaxle fluid temperature
-
Brake pedal status
- Engine oil temperature
- Engine coolant temperature
-
Ambient air temperature
- Barometric pressure
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