Patent · US Active

Pressure determination in a fuel injection valve

US10746119B2 · kind B2 · utility

0Cited by

0References

12Claims

0Family size

Assignee

VITESCO TECHNOLOGIES GMBH · DE

Inventors

Christian Hauser · Lappersdorf, DE
Gerd Rösel · Dresden, DE
Markus Stutika · Regensburg, DE

Key dates

Filing date	Apr 14, 2016
Grant date	Aug 18, 2020
Priority date	—
Expiry date	Nov 4, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2200/0604
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention provides a device and a method for determining a pressure of a fuel (19) which is to be injected into a combustion chamber (23) via a controllable closure element (11) of a solenoid valve (1), wherein the method comprises: generating a current flow (i) through a coil (3) of the solenoid valve (1) in order to generate a magnetic field, in order to generate a magnetic force acting on an armature (9), which magnetic force shifts the armature (9) in the direction of the opening of the closure element (11), determining a magnitude of a magnetic flux (Ψ) of the magnetic field before or when a first state (I) at which the armature starts to shift the closure element is reached, and determining a magnitude of the pressure on the basis of the determined magnitude of the magnetic flux.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.