Patent · US Expired

Method of controlling an internal combustion engine with a common rail fuel injection system

US7272486B2 · kind B2 · utility

7Cited by

3References

9Claims

0Family size

Assignee

MTU FRIEDRICHSHAFEN GMBH · DE

Inventors

Ralf Speetzen · Friedrichshafen, DE
Gunther Schmidt · Biberach, DE
Albert Kloos · Friedrichshafen, DE

Key dates

Filing date	Mar 20, 2006
Grant date	Sep 18, 2007
Priority date	—
Expiry date	Mar 20, 2026

Classification

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

Abstract

In a method of controlling an internal combustion engine with a common rail fuel injection system including individual fuel storage chambers for the supply of fuel to the various cylinders of the internal combustion engine, a fuel pressure (pE(i)) is determined during a measuring interval (MESS) and is stored, the existence of a significant change in the fuel pressure is determined as an injection begin (SB=f(pE(i), Phi)) or an injection end (SE=f(pE(i)), Phi), a virtual injection begin is calculated by way of a mathematical function (FKT) depending on the injection end (SE), and the virtual injection begin (SBv) is used as the actual injection begin (SB) for the subsequent control of the internal combustion engine.

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