Patent · US Active

Method and device for operating an internal combustion engine having a plurality of cylinder banks

US7499788B2 · kind B2 · utility

0Cited by

3References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

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

Key dates

Filing date	Oct 19, 2007
Grant date	Mar 3, 2009
Priority date	—
Expiry date	Oct 19, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method and a device for operating an internal combustion engine having a plurality of cylinder banks which allow a simple diagnosis of a faulty deactivation of the gas exchange of at least one cylinder bank, or a simple determination of the ambient pressure. In the process, in addition to at least one first cylinder bank having activated gas exchange of at least one cylinder, a deactivation of the gas exchange of all cylinders of at least one second cylinder bank is initiated in at least one operating state of the internal combustion engine. The at least one second cylinder bank is assigned a separate intake tract. In the at least one operating state, a variable that is characteristic for the pressure in the intake tract of the at least one second cylinder bank is measured and evaluated for the presence of undesired pressure pulsations.

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