Operation control system for a solenoid valve of a combustion engine and method
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United States of America Patent
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Mar 22, 2016
Grant Date -
Oct 31, 2013
app pub date -
Mar 18, 2013
filing date -
Apr 27, 2012
priority date (Note) -
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Abstract
An operation control system for a solenoid valve of a combustion engine having at least one solenoid valve to hydraulically couple and decouple actuation forces of a cam with a gas valve of a cylinder. A driving unit operates the solenoid valve, and a first detection device monitors a status of the solenoid valve by supplying a status signal to a control unit during an engine intake cycle phase of the cylinder. A second detection device analyzing a system parameter corresponding to the cylinder and supplying a control signal during an engine cycle phase other than the engine intake cycle phase. The control unit delays the status signal based on the status signal to temporally synchronize the status signal with the control signal, or a secondary control signal based thereon, and compares the status signal with the control signal or the secondary signals with each other using an AND-Function.
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