Method for controlling the operating condition of an internal combustion engine
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United States of America Patent
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Oct 22, 1985
Grant Date -
N/A
app pub date -
Jun 11, 1984
filing date -
Jun 20, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A control method for an internal combustion engine in which a fuel supply amount is determined in accordance with a detected value of the vacuum in the intake air passage, comprises a first sampling step for sampling the vacuum level in the intake air passage at a first timing synchronized with the engine crankshaft rotation and a second sampling step for sampling the vacuum level at a second timing whose frequency is higher than that of the first timing, and a step for averaging the sampled value of the second sampling step. During an operational state of the engine where the vacuum level in the intake air passage tends to fluctuate, the average value is selected instead of the normal sampled value to determine the fundamental value for the fuel supply amount control.
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