PROCEDIMENTO E DISPOSITIVO EPR COMPENSARE IL COMPORTAMENTO NON LINEARE DEL SISTEMA DELL'ARIA DI UN MOTORE ENDOTERMICO

摘要

PURPOSE: A method and a device for compensating the change in the nonlinear property of an air system of an engine are provided to accomplish the compensation of the change in the nonlinear property of an air system of an engine in real time by considering the actual state of a control system. CONSTITUTION: A control variable(v) for a controller(ST) of an air system(LS) is induced from the deviation between a predetermined variable(w) and a real variable(y) of the air system by a single regulator(RG). The control variable is changed for the linear relation between the control variable and the real variable. A new control variable(u) is derived from a state variable(x) of the air system and the control variable supplied from the regulator. The nonlinear dependency of the new control variable to the control variable from the regulator is opposite to the nonlinear dependency of the real variable to the new control variable. New control variables are derived for a variable turbine geometry or for a bypass valve of turbo chargers.