CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE Russian patent published in 2018 - IPC F02D41/02 

FIELD: engines.

SUBSTANCE: invention relates to internal combustion engine control device. Result is achieved by the fact that the control device includes an electronic control module. Electronic control module is designed to: (i) set the target air-fuel mixture composition to a lean air-fuel mixture that is more lean than the theoretical air-fuel mixture composition from the time at which the output of the air-fuel mixture of the sensor the composition of the air-fuel mixture on the side of the gas flow outlet becomes equal to or smaller than the air-fuel mixture to determine the enriched side; and (iii) set the target air-fuel mixture composition to an enriched air-fuel mixture composition that is more enriched than the theoretical air-fuel mixture composition after the accumulated volume of oxygen of the catalyst for control of exhaust gas evolution becomes equal to or greater than said reference accumulated volume for switching, and the output composition of the air-fuel mixture of the air-fuel ratio sensor on the side of the exhaust gas flow is higher than the air-fuel mixture to determine the enriched side.

EFFECT: technical result is the provision of a control device for an internal combustion engine that suppresses an unintentional fluctuation in the target air-fuel mixture composition if the air-fuel mixture is regulated.

6 cl, 18 dwg