Patent ID: 8209106
Filing Date: 2012-06-26
Classification: F02D

Abstract:
1. A control apparatus for an internal combustion engine, comprising: a plurality of actuators related to operation of the internal combustion engine; a demand output unit that outputs demands related to various performances that are required at one time for the internal combustion engine, each of the demands being expressed in one or more physical quantities selected for each of the performances from among three types of physical quantities, which are torque, efficiency of actually output torque to potentially outputable torque of the internal combustion engine and an air-fuel ratio, the demand output unit comprising one or more elements outputting demands expressed in one or more types of physical quantities including torque at least, one or more elements outputting demands expressed in one or more types of physical quantities including efficiency at least and one or more elements outputting demands expressed in one or more types of physical quantities including air-fuel ratio at least; a torque mediation unit that collects, of a plurality of demand values output from the demand output unit, only demand values expressed in terms of torque, and then mediates the torque demand values into one in accordance with a predetermined rule; an efficiency mediation unit that collects, of the plurality of demand values, only demand values expressed in terms of efficiency, and then mediates the efficiency demand values into one in accordance with a predetermined rule; an air-fuel ratio mediation unit that collects, of the plurality of demand values, only demand values expressed in terms of an air-fuel ratio, and then mediates the air-fuel ratio demand values into one in accordance with a predetermined rule; and a control variable computing unit that computes control variables of each actuator, based upon the torque demand value, efficiency demand value, and air-fuel ratio demand value output from the respective mediation units.