System and method for adjusting fuel injector on-times

A fuel system has a fuel rail containing pressured fuel coupled to a plurality of fuel injectors. The system is operable in one embodiment to adjust fuel injector on- times by selecting one of the fuel injectors, determining a critical on-time for the selected injector corresponding to a minimum on-...

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Bibliographic Details
Main Authors REISINGER RICHARD E, GEVECI MERT, TIDWELL MICHAEL ROBERT
Format Patent
LanguageChinese
English
Published 01.12.2010
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:A fuel system has a fuel rail containing pressured fuel coupled to a plurality of fuel injectors. The system is operable in one embodiment to adjust fuel injector on- times by selecting one of the fuel injectors, determining a critical on-time for the selected injector corresponding to a minimum on-time duration to which the selected fuel injector is responsive to inject a discernable amount of fuel, generating an on- time for the selected fuel injector, determining an adjusted on-time for the selected fuel injector based on the generated on-time for the selected fuel injector, the critical on-time for the selected fuel injector and a reference critical on-time, and activating the selected fuel injector for the adjusted on-time to inject fuel into the engine. Alternatively or additionally, the adjusted on-time may be based on one or more estimated fuel injection quantities injected by the selected fuel injector.
Bibliography:Application Number: CN20088121666