System and method for engine fuel blend control
AssigneeFord Global Technologies, LLC
InventorsThomas G. Leone, Robert A. Stein, Jeffrey C. Lyjak
Life of this patent
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Abstract
A system for an engine, comprising of a cylinder located in the engine, a fuel delivery system for varying relative delivery amounts of a first and second injection type into said cylinder, and a controller configured to adjust a parameter affecting flow through the engine in response to said relative delivery amounts of said first and second injection type.
Claims16
A system for an engine, comprising:
- a cylinder located in the engine;
- a fuel delivery system for varying relative delivery amounts of a first and second injection type into said cylinder, wherein said first injection type includes gasoline and said second injection type includes ethanol;
- and
- a controller configured to adjust a parameter affecting flow through the engine in response to said relative delivery amounts of said first and second injection type, wherein said controller increases said parameter under a first relative amount of said first and second injection types, and decreases said parameter under a second relative amount of said first and second injection types.
A system for an engine, comprising:
- a cylinder located in the engine;
- a valve for affecting flow in a port coupled to said cylinder;
- a first injector for delivering a first substance to the cylinder;
- a second injector for delivering a second substance to the cylinder;
- and
- a controller configured to move said valve to different positions depending on whether fuel is injected from one or both of said injectors, and based on which injector is active;
- wherein said first substance includes less ethanol than said second substance.
A method for controlling an engine having a cylinder located therein, a valve for affecting flow in a port coupled to said cylinder, a first injector for delivering a first substance to the cylinder, and a second injector for delivering a second substance to the cylinder, the method comprising;
- moving said valve to a first position when said first injector is active during a cycle of the cylinder;
- moving said valve to a second position when said second injector is active during a cycle of the cylinder;
- and
- moving said valve to a third position when both said first and second injectors are active during a cycle of the cylinder;
- wherein said first injector injects gasoline with relatively less ethanol than said second injector.
Dependencies are inferred from the claim text.