CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE Russian patent published in 2018 - IPC F02D41/14 

FIELD: engine building.

SUBSTANCE: invention relates to internal combustion engine control device and method. Result is achieved by the fact that the combustion engine control device is configured with the ability to control the fuel cut-off mode and control the diagnosis of abnormalities. Heating device for heating the element of the air-fuel mixture sensor is controlled for forced-feed approximation of the air-fuel mixture sensor element temperature to the target temperature of the element. Target temperature of the air-fuel ratio sensor element during the high temperature control period from the time, when the prescribed high temperature control starts after the start of the internal combustion engine, when the prescribed high temperature control is completed after the control of the anomaly diagnosis of the air-fuel ratio sensor is completed, is set above the target temperature of the element outside the high-temperature control period.

EFFECT: technical result is the provision of a control device and method for controlling an internal combustion engine, which support the electrical power consumed by the heater to heat the air-fuel mixture sensor, relatively low and allow reliable diagnostics of the abnormality of the air-fuel mixture sensor by diagnosis of abnormalities, performed during the control in the fuel cut-off mode.

8 cl, 14 dwg