Patent · US Active

Method to detect a faulty operating condition during a cylinder cutoff of an internal combustion engine

US8103433B2 · kind B2 · utility

15Cited by

6References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Dirk Hartmann · Aßling, DE
Georg Mallebrein · Stuttgart, DE
Werner Mezger · Weinsberg, DE
Andreas Roth · Karlsruhe, DE
Henri Barbier · Schwieberdingen, DE
Nikolas Poertner · Stuttgart, DE
Juergen Rappold · Beilstein, DE
Ingo Fecht · Ludwigsburg, DE

Key dates

Filing date	Nov 29, 2007
Grant date	Jan 24, 2012
Priority date	—
Expiry date	Nov 23, 2030

Classification

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

Abstract

Method to detect a faulty operating condition during a cylinder cutoff of an internal combustion engine with at least two cylinder banks, wherein the internal combustion engine comprises in each case a separate mechanism to determine the Lambda value of the combustion for each cylinder bank.When the Lambda values of the cylinder banks change in opposite directions, a faulty cylinder cutoff is suggested.

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