Patent ID: 8571780

Claim:
An engine controlling apparatus, comprising: an engine speed detection unit that detects an engine speed of an engine mounted on a vehicle; an acceleration operation amount detection unit that detects an acceleration operation amount inputted to an acceleration pedal of the vehicle; a first calculation unit that calculates an acceleration demand torque based on the engine speed detected by said engine speed detection unit and the acceleration operation amount detected by said acceleration operation amount detection unit; a second calculation unit that calculates an external demand torque, a first demand torque and a second demand torque, the external demand torque being demanded from an external controlling system, the first demand torque being for ignition timing control, the second demand torque being for intake air amount control, both the first demand torque and the second demand torque being calculated based on the acceleration demand torque and the external demand torque; a third calculation unit that calculates a first target torque for ignition timing control and a second target torque for intake air amount control, the first target torque being calculated based on the first demand torque, the second target torque being calculated based on both the second demand torque and an air intake delay in an intake system of the engine; a fourth calculation unit that calculates, as an actual torque, a maximum torque which can be generated by the engine at an actual charging efficiency; and a control unit that controls an ignition timing of the engine based on the actual torque and the first target torque, wherein said second calculation unit includes a first external demand torque calculation section and a second external demand torque calculation section, and said second external demand torque calculation section applies correction to both the first demand torque and the second demand torque, and said first external demand torque calculation section applies correction for stabilizing the posture of the vehicle only to the second demand torque.