This example shows how to model, parameterize and test an automotive clutch. The model is used to generate the plot of the engine and the transmission system speeds during a declutching scenario.
The following figure shows the model of an automotive clutch in a test harness. The output of the model is a plot of speed vs time of the engine and the transmission systems during the declutching scenario.
This subsystem shows how the clutch is modeled. The clutch consists of a lever mechanism, a diaphragm spring, a pressure plate, a set of clutch plates, and a hub. The lever transfers force to the diaphragm spring when a force is applied on the other end of the lever by the slave cylinder. The applied force on the diaphragm spring causes the pressure plate to remove the pre-applied force on the clutch plate. The declutching takes place when the force on the clutch plate is removed through the removal of the force on the pressure plate by the diaphragm spring's action. No torque is transferred from the engine to the transmission after the declutching event.
This model generates a plot of speed vs time of the engine and the transmission systems during the declutching scenario.