METHOD AND SYSTEM FOR ENGINE WATER INJECTION

Methods and systems are provided for adjusting water injection at distinct locations of an engine based on a total water injection error determined from an output of an exhaust oxygen sensor. The method may include injecting water at distinct locations based on a cooling demand and a dilution demand...

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Bibliographic Details
Main Authors McQuillen, Michael, Makled, Daniel A, Surnilla, Gopichandra, Hakeem, Mohannad
Format Patent
LanguageEnglish
Published 21.06.2018
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
WEAPONS
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Summary:Methods and systems are provided for adjusting water injection at distinct locations of an engine based on a total water injection error determined from an output of an exhaust oxygen sensor. The method may include injecting water at distinct locations based on a cooling demand and a dilution demand. Further, the method may include distributing the total injection error to respective water injectors, as well as adjusting engine operating parameters, to provide desired engine cooling and dilution.
Bibliography:Application Number: US201615384188