Patent · US Active

Method for learning a minimum actuation duration of fuel injectors of an internal combustion engine

US9541021B2 · kind B2 · utility

1Cited by

10References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Brahim Baqasse · Stuttgart, DE
Udo Schulz · Gießen, DE
Markus Hernier · Gerlingen, DE
Thiebaut Beyrath · Stuttgart, DE

Key dates

Filing date	Nov 13, 2012
Grant date	Jan 10, 2017
Priority date	—
Expiry date	Mar 24, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for learning and determining a minimum injector-specific electric actuation duration for at least one fuel injector of an internal combustion engine of a motor vehicle. Starting with a predefined electric actuation duration which definitely does not result in an injection, the electric actuation duration is gradually increased in each engine stop and/or in each engine start in successive engine stops and/or in successive engine starts of the internal combustion engine up to an actuation duration in which an injection with a combustion occurs, and then this actuation duration may be determined as the minimum electric actuation duration. The invention also relates to a corresponding device.

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