Patent · US Active

Method for operating a fuel system for an internal combustion engine

US9410516B2 · kind B2 · utility

0Cited by

2References

13Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Matthias Maess · Eppelheim, DE
Joerg Kuempel · Stuttgart, DE
Rainer Wilms · Markgröningen, DE
Uwe Richter · Jena, DE

Key dates

Filing date	Apr 24, 2013
Grant date	Aug 9, 2016
Priority date	—
Expiry date	Jul 24, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2041/2055
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating a fuel system for an internal combustion engine having a metering device, an electrical actuating device, and a valve element includes: activating the electrical actuating device in at least one first cycle in such a way that the valve element switches into a second position corresponding to an open metering device; activating the electrical actuating device in at least one second cycle in such a way that the electrical actuating device is activated from activation to activation, with activation energy which decreases gradually, until a limiting case is reached in which the valve element only just or just no longer switches into the second position; ascertaining a first activation energy, which corresponds to the limiting case; and subsequently activating the actuating device, taking the first activation energy into account.

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