CONTROL METHOD AND SYSTEM OF AIR FUEL RATIO IN PRE-IGNITION SITUATION
A method of controlling an air-fuel ratio in a pre-ignition (PI) situation, may include: monitoring, by a PI detector, whether PI occurs in a cylinder of a plurality of cylinders of an engine; and when the PI occurs in the cylinder of the plurality cylinders, controlling, by a controller, an air-fue...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
19.08.2021
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Subjects | |
Online Access | Get full text |
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Summary: | A method of controlling an air-fuel ratio in a pre-ignition (PI) situation, may include: monitoring, by a PI detector, whether PI occurs in a cylinder of a plurality of cylinders of an engine; and when the PI occurs in the cylinder of the plurality cylinders, controlling, by a controller, an air-fuel ratio of the cylinder in which the PI occurs to be smaller than a theoretical air-fuel ratio, and controlling an air-fuel ratio of a remaining cylinder of the plurality of cylinders in which PI does not occur to be larger than the theoretical air-fuel ratio. |
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Bibliography: | Application Number: US202016896414 |