FIELD: engines.
SUBSTANCE: invention relates to protection from early ignition. In engine control method for prevention of early ignition air is pumped into the cylinder without injected fuel, while another cylinder burns depleted fuel-air mixture. Quantity of sucked air into cylinders is limited to be less than threshold value. Limiting increases with increase of degree of fuel-air mixture depletion. In another version, method includes engine operation in following modes: in mode with all cylinders stays in combustion at stoichiometric; in mode with cylinders pumping air without injected fuel, and cylinders, operating with fuel-air ratio more depleted than stoichiometry; in mode with all cylinders stays in combustion, and cylinder, operating with fuel-air ratio more enriched than stoichiometry.
EFFECT: prevention of early ignition.
19 cl, 5 dwg
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