Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mrdjan J. Jankovic0
Brad Alan Boyer0
Thomas G. Leone0
Date of Patent
December 5, 2017
0Patent Application Number
154706040
Date Filed
March 27, 2017
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Embodiments for operating an engine with skip fire are provided. In one example, a method comprises during a skip fire mode or during a skip fire mode transition, port injecting a first fuel quantity to a cylinder of an engine, the first fuel quantity based on a first, predicted air charge amount for the cylinder and lean of a desired air-fuel ratio, and direct injecting a second fuel quantity to the cylinder, the second fuel quantity based on the first fuel quantity and a second, calculated air charge amount for the cylinder.
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