| 摘要 |
Disclosed is a method of controlling the operation of an air charging system195 of an internal combustion engine 110. The method comprises the steps of monitoring a plurality of output parameters of the air charging system 195, calculating an error between each one of the monitored output parameters and a target value thereof, applying each one of the calculated errors to a linear controller that yields a virtual input, using the virtual inputs to calculate a plurality of input parameters for the air charging system 195, using each one of the input parameters to determine the position of a corresponding actuator of the air charging system 195, operating each one of the actuators according to the determined position. The inputs parameters are calculated with a non-linear mathematical model of the air charging system configured such that each one of the virtual inputs is in a linear relation with only one of the output parameters and vice versa. The invention may be used to control a plurality of actuators for exhaust gas recirculation (EGR) valves, a variable geometry turbine (VGT) actuator and an air inlet actuator. The charging system may be a compressor of a turbocharger system. An associated apparatus and electronic control unit for carrying out the method are also disclosed. |
