Patent ID: 6715287
Filing Date: 2004-04-06
Classification: F02D,F02M,Y02T

Abstract:
A method for controlling an internal combustion engine with an air system, comprising:determining, using at least one model, at least one variable characterizing the air system on the basis of at least one of at least one correcting variable and at least one measured variable characterizing a state of an ambient air, the at least one model including at least one first submodel and at least one second submodel; and determining, using at least one of the at least one first submodel and the at least one second submodel, a plurality of output variables based on a plurality of input variables; wherein the at least one correcting variable, the at least one measured variable, and at least one output variable of the at least one second submodel are taken into account as input variables of the at least one first submodel; wherein the at least one correcting variable includes a fuel quantity variable representing a fuel quantity to be injected; wherein the at least one correcting variable includes at least one of: the fuel quantity variable; an exhaust-gas recirculation on/off ratio characterizing a first control signal for a first actuator influencing an exhaust-gas recirculation; and a supercharger on/off ratio characterizing a second control signal for a second actuator influencing a plurality of characteristics of a supercharger.