Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jim Liu0
Yongsheng He0
Date of Patent
February 19, 2019
0Patent Application Number
155576140
Date Filed
March 13, 2015
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An internal combustion engine is described, and includes a method for operating that includes determining an observed carbon monoxide (CO) ratio in an exhaust gas feedstream, determining an observed in-cylinder scavenging based upon the observed CO ratio in the exhaust gas feedstream, and controlling, by a controller, control states for the variable cam phasing system to control opening times of engine intake valves in relation to closing times of engine exhaust valves based upon the observed in-cylinder scavenging.
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