Engine control device
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United States of America Patent
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Jan 24, 2006
Issued Date -
N/A
app pub date -
Feb 1, 2005
filing date -
Aug 1, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An engine control device is provided to reliably detect an abnormality in crank pulses. The device determines that there is an abnormality in crank pulses when the situation, in which a standard pitch crank pulse counter T does not reach a prescribed value T0 between irregular pitch crank pulses (interval abnormality), repeatedly occurs at least a prescribed value CNT0 times, when an irregular pitch is not detected for a prescribed period of time for the crank pulse counter T to count up to TMAX or longer, or when the situation, in which a prescribed number or more of clank pulses are not detected for a prescribed period of time, repeatedly occurs at least a count-up value KMAX of times.
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