GF27.20-P-3002SXA Torque Converter Lockup Clutch Control, Function

GF27.20-P-3002SXA Torque converter lockup clutch control, function
- TRANSMISSION 722.6
- up to model year 08


The aim of using the torque converter lockup clutch is to lower the fuel consumption and exhaust gas emission of the vehicle by reducing the converter slip. This stands in contradiction to the ride comfort demands made on the drive train with regard to its vibration behavior. The task of the electronic transmission control is therefore to close the clutch in all driving situations relevant to fuel consumption, if possible, and ensure that the engine vibrations are isolated from the drive train.

The operating condition of the torque converter lockup clutch is determined by the following influencing variables:
^ Accelerator pedal movement
^ Uphill and downhill gradients
^ Transmission shift functions
^ Transmission fluid temperature
^ Durability requirements
^ Load condition
^ Engine control influences