Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Brad Alan Boyer0
Thomas G. Leone0
Mrdjan J. Jankovic0
Date of Patent
March 28, 2017
0Patent Application Number
146023950
Date Filed
January 22, 2015
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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