Patent · US Active

Method for determining a value of a current

US9638377B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Sommerer · Weingarten, DE
Sebastien Chatelain · Écully, FR
Raphael Combe · Val-de-Reuil, FR
Markus Viereck · Emmendingen, DE

Key dates

Filing date	Aug 6, 2012
Grant date	May 2, 2017
Priority date	—
Expiry date	Dec 2, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7784
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for determining a value of a current, which is required for changing a switching state of a pressure control valve of a fuel delivery system, in which the current flowing through the pressure control valve is varied from a starting value up to a target value, and a time curve of the current is analyzed, the value required for changing the switching state being reached when the curve of the current has a change in slope, this change being detected via a first derivation over time of the current.

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