Charger V6-3.5L (2009)
The TCC (9) was installed to improve the efficiency of the torque converter that is lost to the slippage of the fluid coupling. Although the fluid coupling
provides smooth, shock-free power transfer, it is natural for all fluid couplings to slip. If the impeller and turbine were mechanically locked together, a
zero slippage condition could be obtained. A hydraulic piston with friction material was added to the turbine assembly to provide this mechanical
lock-up.
In order to reduce heat build-up in the transmission and buffer the powertrain against torsional vibrations, the TCM can duty cycle the torque converter
lock-up solenoid to achieve a smooth application of the torque converter clutch. This function, referred to as Electronically Modulated Converter Clutch
(EMCC) can occur at various times depending on the following variables:
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Shift lever position
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Current gear range
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Transmission fluid temperature
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Engine coolant temperature
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Input speed
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Throttle angle
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Engine speed
Torque Converter - Operation
OPERATION
