Internal-combustion engines – Miscellaneous – Fuels – lubricants and additives
Patent
1997-10-29
1999-08-17
Kwon, John
Internal-combustion engines
Miscellaneous
Fuels, lubricants and additives
123681, 123683, F02B 7512
Patent
active
059377984
ABSTRACT:
The present invention provides a method for controlling combustion parameters of an internal combustion engine during wide open throttle or part throttle enrichment operation. Oxygen sensor rich and lean counts above and below a stoichiometric air/fuel ratio are counted during an injector pulse width period while a fuel concentration determination is being made at wide open throttle and part throttle enrichment. The ratio of lean counts to rich counts is compared to a calibratable value for incrementing the fuel concentration delivered to the internal combustion engine. The fuel concentration is further controlled if a boil-off condition is detected.
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Cheng Yi
Huff Shean
Joyce Mary
Kennie Jerry
Nankee, II Robert J.
Calcaterra Mark P.
Karin Rak
Kwon John
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