Back to results
US 7,069,720 B2Granted
Cylinder event based fuel control
AssigneeFord Global Techologies, LLC
InventorsBen Allen Strayer, Daniel Lawrence Meyer, Frank Gonzales, Jr., Garth Michael Meyer, Michael Smokovitz, Donald James Lewis
Life of this patent
Estimating the term…
Abstract
A method to deliver fuel during a start for an internal combustion engine is described. The method provides individual cylinder fuel control based on the number of fueled cylinder events. The method offers improved engine emissions while maintaining engine run-up performance.
Claims18
A fuel control method for a multi-cylinder internal combustion engine, comprising:
- injecting fuel at least onto closed intake valves from the start of the internal combustion engine;
- counting a number of consecutive combustion events of the cylinders from a start of said internal combustion engine;
- adjusting individual cylinder injected fuel amounts of each cylinder based on said counted number of cylinder combustion events;
- adjusting spark timing based on said counted number of cylinder combustion events;
- and
- treating combusted exhaust gasses in a catalytic converter coupled in an exhaust path of the engine.
3 more elements
A fuel control method for a multi-cylinder internal combustion engine, comprising:
- injecting fuel from the start of the internal combustion engine;
- counting a number of consecutive combustion events of the cylinders from a start of said internal combustion engine;
- adjusting individual cylinder injected fuel amounts of each cylinder based on said counted number of cylinder combustion events;
- adjusting spark timing based on said counted number of cylinder combustion events;
- and
- treating combusted exhaust gasses in a catalytic converter coupled in an exhaust path of the engine.
3 more elements
Dependencies are inferred from the claim text.