Nonlinear Control of the System Composed of the Clutch Assembly with Diaphragm Spring and Its Pneumatic Actuator on an AMT

An AMT system composed of the clutch assembly with diaphragm spring and its pneumatic control actuator has typical nonlinear characteristics, which brings difficulties to high-precision automatic control. A nonlinear compensator has been designed based on the inverse function principle for this kind of nonlinear system, which has been verified by the simulation running on a clutch control simulink model and a simscape physical model of the clutch system. The clutch control rig test was also carried out. The results of simulation and rig test show that the control effect of the nonlinear compensator is better than that of the normal linear controller.