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:
Sep. 24, 2002
Filed:
Nov. 03, 2000
Magneti Marelli S.p.A., Milan, IT;
Abstract
A method for the control of an electromagnetic actuator coupled to a respective valve and provided with a moving ferromagnetic member connected to at least one point of the valve, a pair of electromagnets disposed on opposite sides with respect to the moving ferromagnetic member and an elastic member adapted to maintain the valve in a rest position. The method comprises the stages of detecting an actual position and an actual velocity of the valve, determining a reference position and a reference velocity of the valve and minimising differences between the reference position and the actual position and between the reference velocity and the actual velocity of the valve by means of a feedback control action.