Engine synchronization apparatus and control method thereof
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United States of America Patent
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Jun 5, 2018
Issued Date -
Jun 22, 2017
app pub date -
Oct 7, 2016
filing date -
Dec 16, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
An engine synchronization apparatus includes: a crank shaft position sensor detecting a position of a crank shaft to detect a tooth and a missing tooth; a cam sensor detecting a position of a cam corresponding to an angle of rotation of each of an intake cam and an exhaust cam; and a controller synchronizing the engine to use a tooth detection signal from the crank shaft position sensor and a cam signal from the cam sensor. The controller carries out an engine synchronization by determining the position of the crank shaft and the position of the cam to select one cam between the intake cam and the exhaust cam and to detect the position of a unique part of the cam signal from a voltage level and a level length of the cam signal of the selected cam.
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