AID MANAGEMENT AND AID REQUIREMENTS FOR ENGINES

摘要

a combustion engine control device (10),where the combustion engine (10) includes a firing device (28), a fuel injection valve (26) and a cylinder pressure sensor (30),where the ignition device (28) is designed to ignite an air-fuel mixture within a combustion engine cylinder (10),where the fuel injection valve (26) is designed to deliver fuel to the cylinder; andwhere the cylinder pressure sensor (30) is designed to detect pressure in the cylinder,with the control having:an electronic control unit (40) designed to:calculates an ignition index value and a combustion time index based on an output value of the cylinder pressure sensor (30);stores relevant information defining a relationship between the ignition index value and the burning time index value and a torque fluctuation limit value;stores a torque fluctuation limit line based on the relevant information;calculates a distance between a current operating point of the combustion engine and a point on the torque fluctuation line at a x y level, which shows the ignition index value as x coordinate value and the burning time index as y coordinate value, where the current operating point is given by the ignition index and the combustion period index;perform a first control, where the ignition device is controlled in such a way that the ignition point is reset to the rear when the distance is greater than a threshold; andperforms a second control where the fuel injection valve is controlled in such a way that a fuel share in an air-fuel ratio is higher and the ignition device is controlled in such a way that the ignition time is reset to the rear when the distance is equal to or less than the threshold value.