Patent ID: 8370065

Claim:
An engine control apparatus that controls operations of actuators to control combustion conditions in an engine, thereby controlling output characteristics of the engine, comprising: a storage device that stores therein a combustion parameter arithmetic expression defining correlations between a plurality of types of engine output values representing said output characteristics and a plurality of types of combustion parameters representing the combustion conditions; a combustion target value calculator that uses said plurality of types of required values and said combustion parameter arithmetic expression, as stored in said storage device, to calculate combinations of target values of said plurality of types of combustion parameters with required values of said plurality of types of engine output values; a controlled variable command value calculator that calculates command values for controlled variables of the actuators based on the target values of said plurality of types of combustion parameters, as calculated by the combustion target value calculator, the command values being provided to adjust controlled variables of the actuators to control the combustion conditions of the engine for achieving desired values of the output characteristics of the engine.