FIELD: engines and pumps.
SUBSTANCE: invention relates to the internal combustion engine control device and the internal combustion engine control method. Target level ε(t+Tact) of compression, after the directive time Tact has been passed from the current time, it is calculated from the volume of intake air, drawn into a cylinder (7) after the directive time Tact has been passed from the current time. The control command (t) for the electric motor (31), which actuates the mechanism (9) of the variable compression ratio, and it is calculated so as to bring the actual degree of εr(t+Tact) of compression after the directive time Tact in accordance with the target degree ε(t+Tact) of compression after the prescribed time Tact. It gives the actual compression ratio opprtunity to follow the target compression ratio accurately.
EFFECT: improvement of fuel efficiency and output power.
9 cl, 16 dwg
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