Method of diagnosing a valve, diagnosis module, and valve
AssigneeBuerkert Werke GmbH
InventorsMarkus Klaiber, Holger Schwab, Florian Fischer
Life of this patent
Estimating the term…
Abstract
A method of diagnosing a valve is described, which has an electrodynamic actuator, which includes a coil, a movable magnet arrangement for generating a magnetic field, and a movable control element which is coupled to the movably arranged magnet arrangement. At least one electrical variable of the electrodynamic actuator is measured. The electrical variable is evaluated with respect to a reference variable to determine at least one induction-dependent valve variable which is assigned to the motion profile of the electrodynamic actuator. A diagnosis module and a valve are furthermore described.
Claims15
A method of diagnosing a valve having an electrodynamic actuator, which comprises a coil, a movable magnet arrangement for generating a magnetic field, and a movable control element which is coupled to the movably arranged magnet arrangement, the method comprising the following steps:
- measuring at least one electrical variable of the electrodynamic actuator by means of a diagnosis module which is electrically inserted into an electric circuit of the coil of the electrodynamic actuator, and
- evaluating the electrical variable with respect to a reference variable to determine at least one induction-dependent valve variable which is assigned to a motion profile of the electrodynamic actuator,
- wherein the coil is stationary in the electrodynamic actuator and the magnet arrangement is moveable relative to the coil.
Dependencies are inferred from the claim text.