Method for controlling internal combustion engine emissions
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United States of America Patent
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Jul 10, 2007
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N/A
app pub date -
Jun 8, 2006
filing date -
Jun 13, 2005
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Abstract
A method for controlling internal combustion engine emissions, including the steps of reading signals from sensors in an engine exhaust manifold and catalytic converter exhaust, an upstream one of the sensors being provided with an air-fuel mixture setpoint, comparing signal values with previous average values and automatically adjusting the air-fuel mixture set point to vary the fuel mixture fed to the engine.
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