Nonlinear control of an electro-pneumatic protection valve for circuit pressure limiting. (Research report SCL-005/2003)

A simple feedforward nonlinear control design is presented in this report that is based on a simplified hybrid model of the electro-pneumatic protection valve used for circuit pressure limiting function of commercial vehicle air supply systems. First the model is analyzed according to the control design requirements with an emphasis on its hybrid behavior. The applied controller fulfils predefined optimality criteria that is achieved by numeric optimization methods.