The mechanical power flow in the gearbox starts at the connection point between the torque converter and flywheel. When the engine is running, the converter housing (pump) turns with the engine speed. With rotation, the converter multiplies the engine torque and transfers it to the drive shaft. The drive shaft forms the main connection for mechanical operation of the gearbox.
To suit engine with higher torque, the automatic gearboxes have different levels of power. The automatic gearbox differ, e.g., in that they have different torque converters.
Depending on the engine version, the following sizes of torque converter are used:
The torque converter is equipped with a turbine wheel damper. The turbine wheel damper improves the values for noise, vibrations and roughness when the converter lockup clutch is actuated in the lower engine speed range.
The converter lockup clutch leads to an improvement in the fuel consumption. Depending on the vehicle, engine and gearbox parameters, the following operating modes are available:
Relevant faults in the converter lockup clutch
The following faults are treated in the test module:
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