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US 10,330,003 B2Granted
Method and system for controlling fuel usage
AssigneeFord Global Technologies, LLC
InventorsThomas G. Leone, Gopichandra Surnilla
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for improving fuel usage while addressing knock by adjusting the use of spark retard and direct injection of a fluid based on engine operating conditions and the composition of the injected fluid. One or more engine parameters, such as EGR, VCT, boost, throttle position, are coordinated with the direct injection to reduce torque and EGR transients.
Claims16
A method of operating an engine including an EGR passage coupled between an engine intake and an engine exhaust, comprising:
- adjusting, via an electronic controller, an engine load at which water is direct injected into an engine cylinder based on an amount of flowing EGR.
Dependencies are inferred from the claim text.