Patent ID: 9291077
Filing Date: 2016-03-22
CPC Classification: F01L,H01F

Claim Text:
1. An operation control system for a solenoid valve of a combustion engine comprising: at least one solenoid valve that hydraulically couples and decouples actuation forces of a cam with a gas valve of a cylinder in the combustion engine, a driving unit to operate the solenoid valve, a control unit, a first detection device monitoring a status of the solenoid valve that supplies a status signal to the control unit during an engine intake cycle phase of the cylinder, a second detection device configured to analyze 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 is configured to delay the status signal to temporally synchronize the status signal with the control signal, and compares the status signal with the control signal using an AND-Function.