CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE Russian patent published in 2017 - IPC F02D43/00 F02P5/152 F01P7/16 G01L23/22 

FIELD: engines and pumps.

SUBSTANCE: control device for internal combustion engine comprises a detonation control system, a cooling system and an electronic control unit. The detonation control system is arranged to calculate the value of ignition angle correction according to the presence or absence of detonation in the internal combustion engine so that the amount of ignition angle correction is updated in the direction of increase when detonation occurs and updated in the direction of decrease when no detonation occur. The detonation control system is configured for calculating the ignition angle based on the value of the ignition angle correction and igniting the spark plug of internal combustion engine at the ignition angle obtained by ignition angle delay in response to detonation occurrence. The cooling system is designed for cooling the internal combustion engine. The electronic control unit is arranged to supply a control value corresponding to the target value of the cooling parameter to the cooling system. The cooling system performs cooling of the internal combustion engine according to the control value. The electronic control unit is configured to adjust the control value based on the ignition angle correction value so that when the ignition angle correction value is increased, the correction value for correcting the control value is increased by the correction value in the direction in which the cooling capacity of the cooling system is increased. The cooling system of the internal combustion engine includes a first cooling system which primarily cools the cylinder block of the internal combustion engine, and a second cooling system which primarily cools the inlet periphery. The first cooling system and the second cooling system, respectively, include coolant flow channels independent from each other. The electronic control unit is configured to supply the control value to the second cooling system.

EFFECT: prevention of detonation occurrence by controlling both the ignition angle and temperature of cooling water.

10 cl, 11 dwg