The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2016
Filed:
Mar. 18, 2013
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Piergiacomo Traversa, Nuremberg, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
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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