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AssigneeCaterpillar Inc.
InventorBrian G. McGee
Estimating the term…
A fuel injection control system and method for determining a start angle for a fuel injection event based upon engine speed. A controller is coupled to a plurality of fuel injectors associated with the engine and is operable to convert a predetermined timing trim value associated with each fuel injector to an angle trim value. The controller is further operable to determine a relative injection angle value for each cylinder by adding the angle trim value to a predetermined advanced pilot timing angle value and a predetermined main shot timing angle value; to compare the relative injection angle value to a maximum allowable relative injection angle value and set the relative injection angle value to the maximum if the determined relative injection angle value exceeds the maximum allowable relative injection angle value; and to determine an absolute injection angle value for each cylinder by adding the relative injection angle value to a predetermined cylinder top-dead-center offset value associated with the fuel injector for a particular cylinder. The absolute injection angle value corresponds to the position of the cylinder piston during a particular fuel injection event.
A fuel injection control system for determining a start angle for a fuel shot in a multi-shot fuel injection event, comprising:
A computer readable medium containing instructions for controlling a fuel injection control system for determining a start angle for a fuel shot in a multi-shot fuel injection event for an engine comprising:
A method for determining a start angle for a fuel shot in a multi-shot fuel injection event for an engine comprising:
A method for determining a start angle for a fuel shot in a multi-shot fuel injection event for an engine, the fuel injection event being associated with a cylinder of the engine, comprising the steps of:
Dependencies are inferred from the claim text.