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.

Date of Patent:
Nov. 21, 2017

Filed:

Jan. 20, 2015
Applicant:

Magneti Marelli S.p.a., Corbetta, IT;

Inventors:

Giovanni Prodi, Bologna, IT;

Fabio Sensi, Casalecchio di Reno, IT;

Luca Mancini, Budrio, IT;

Assignee:

Magneti Marelli S.p.A., Corbetta, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/30 (2006.01); F02M 59/36 (2006.01); F02D 41/20 (2006.01); F02D 41/38 (2006.01);
U.S. Cl.
CPC ...
F02M 59/368 (2013.01); F02D 41/20 (2013.01); F02D 41/30 (2013.01); F02D 41/3845 (2013.01); F02D 2041/202 (2013.01); F02D 2041/2017 (2013.01);
Abstract

Method to control an electromagnetic actuator of an internal combustion engine, in particular for a fuel pump of a direct-injection system; wherein the electromagnetic actuator is controlled by an electric current pulse of the Peak&Hold type, i.e. subdivided into a peak phase and a hold phase; the method includes acquiring the initial duration of the peak phase, during which a peak control current is to be supplied to the electromagnetic actuator to control the movement of a component of the electromagnetic actuator moving towards a position defined by a limit stop; and determining the duration of the peak phase by progressively decreasing the initial duration of the peak phase by a first change.


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