Patent ID: 8037874
Filing Date: 2011-10-18
Classification: F02D,Y02T

Abstract:
1. A method for controlling an engine having a plurality of cylinders, each cylinder including a first and second fuel injector, the first fuel injectors having a different fuel injector type than the second fuel injectors, comprising: operating a first cylinder to combust fuel delivered from both the first and second fuel injectors of the first cylinder; operating a second cylinder to combust fuel delivered from only one of the first and second fuel injectors of the second cylinder; and among the first and second fuel injectors of the first and second cylinders, adjusting fuel injection of only those fuel injectors having a common fuel injector type among the first and second cylinders to maintain air-fuel ratio of the first and second cylinders and adjusting fuel injection of at least one fuel injector having an un-common fuel injector type among the first and second cylinders independent of air-fuel ratio, wherein the operation of the injectors is conditional based on which operating injectors are common between the first and second cylinders.