Method for controlling air system states in an intake manifold of an internal combustion engine

摘要

A method for controlling at least one air system state in an intake manifold of an internal combustion engine, at least one control variable which influences the at least one air system state being predefined with the aid of an actuator; at least one control variable limitation of the actuator is taken into account in the control.

主权项

1. A method for controlling at least one air system state in an intake manifold of an internal combustion engine, the method comprising:
predefining at least one control variable which influences the at least one air system state with the aid of at least one actuator, wherein the at least one actuator includes at least one of a throttle valve and an exhaust gas recirculation (EGR) valve; controlling at least one of an intake manifold pressure and a residual gas rate in the intake manifold; and taking into account at least one control variable limitation of the at least one actuator in the control, wherein the at least one actuator is subject to the control variable limitations by dynamically delimiting the rate of the desired change, enthalpy/mass flows via the EGR valve and into the engine being assumed as given, so that the change rate thus obtained ensures a time optimization.