Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means
Patent
1997-10-29
1998-12-22
Solis, Erick R.
Internal-combustion engines
Charge forming device
Including exhaust gas condition responsive means
123 1A, F02D 4106
Patent
active
058508244
ABSTRACT:
The present invention provides a method for controlling the combustion parameters of an internal combustion engine with an oxygen sensor prior to a closed loop operating condition. If the output voltage of the oxygen sensor indicates a lean air to fuel ratio condition, the percent alcohol content is incremented to a limit based on an E85 possibility curve. If the voltage output of the oxygen sensor indicates a rich air to fuel ratio condition, the percent alcohol content is decremented to a limit based on an E0 possibility curve. After the end of the fuel blending period or when the internal combustion engine reaches a closed loop mode, control of the combustion parameters of the internal combustion engine are returned to normal regime oxygen sensor feedback control.
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Cheng Yi
Hope Mark E.
Huff Shean
Joyce Mary
Kennie Jerry
Calcaterra Mark P.
Chrysler Corporation
Solis Erick R.
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