Patent · US Active

Method for testing the operation of a pressure sensing unit of an injection system of an internal combustion engine

US8113039B2 · kind B2 · utility

0Cited by

11References

15Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Christian Beetz · Erlangen, DE
Michael Wirkowski · Regensburg, DE
Hartmut Wolpert · Zeitlarn, DE

Key dates

Filing date	Nov 13, 2007
Grant date	Feb 14, 2012
Priority date	—
Expiry date	May 3, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D41/3836
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a method for testing the operation of a pressure sensing unit of an injection system of an internal combustion engine, the injection system has no high-pressure valve. An error is detected when a pressure gradient value falls below a pressure gradient limit while at the same time the most recently detected pressure is higher than a pressure limit.

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