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US 11,454,190 B1Granted
Method and system for operating a fuel injector
AssigneeFord Global Technologies, LLC
InventorsRoss Pursifull, David Oshinsky, Rani Kiwan, Joseph Lyle Thomas
Life of this patent
Estimating the term…
Abstract
Methods and systems for adjusting fuel injector operation according to changes in fuel pressure during inter-injection periods are described. The inter-injection period may be before and after fuel is injected to an engine. The methods and systems described herein may be suitable for direct and port fuel injectors.
Claims7
A method for operating a fuel injector, comprising:
- estimating a fuel pressure drop in a fuel rail due to injecting a fuel via a fuel injector according to an average fuel pressure before injecting the fuel, an average fuel pressure after injecting the fuel, a slope of fuel pressure during an inter-injection period before injecting the fuel, and a slope of fuel pressure during an inter-injection period after injecting the fuel;
- and
- adjusting fuel injected subsequently via the fuel injector based on the estimated fuel pressure drop.
Dependencies are inferred from the claim text.