ENGINE CONTROL SYSTEM
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United States of America Patent
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Issued Date -
Mar 6, 2014
app pub date -
Aug 7, 2013
filing date -
Sep 3, 2012
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Abstract
In a system, a signal output module produces pulses based on rotation of a crankshaft, and outputs a signal having the pulses. A pattern of the pulses shows at least one reference portion of the crankshaft to which the position of at least one cylinder is relative. A reference portion detector performs a reference portion detecting task that detects, based on the pulse pattern of the signal while a rotational direction of the crankshaft is a predetermined direction, the at least one reference portion of the crankshaft. A reverse rotation predicting module predicts whether rotation of the crankshaft in the predetermined direction will be reversed. A disabling module disables the reference portion detector from performing the reference portion detecting task if the reverse rotation predicting module predicts that rotation of the crankshaft in the predetermined direction will be reversed.
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