Air-fuel ratio control system for automotive vehicle equipped with an air conditioner
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United States of America Patent
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May 19, 1998
Grant Date -
N/A
app pub date -
Jul 19, 1995
filing date -
Jul 20, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An air-fuel ratio control system for an internal combustion engine of an automotive vehicle is provided which is designed to enrich an air-fuel mixture when an engine load is varied by use of an air conditioner installed in the vehicle for ensuring optimum emission control. The air-fuel ratio control system includes an air conditioner condition determining unit which determines drive torque of an air conditioner compressor as a parameter indicative of a variation in engine load and modifies an air-fuel ratio to the rich side according to an increase in drive torque of the air conditioner compressor.
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