Patent · US Active

Method and device for adapting a lambda control

US9091226B2 · kind B2 · utility

11Cited by

4References

17Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ralf Zimmerschied · Stuttgart, DE
Richard Holberg · Stuttgart, DE

Key dates

Filing date	Oct 24, 2012
Grant date	Jul 28, 2015
Priority date	—
Expiry date	Nov 12, 2033

Classification

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

Abstract

A method for adapting a lambda control of an internal combustion engine having an exhaust gas probe disposed in an exhaust gas duct of the internal combustion engine as part of an exhaust gas monitoring system, wherein the adaptation is carried out on the basis of a comparison between a modeled and a measured signal after a predetermined change in the fuel-air ratio of an air-fuel mixture supplied to said internal combustion engine has taken place and wherein the measured signal is an actual value of an output signal of the exhaust gas probe and the modeled signal is a modal value, which is derived from the air-fuel mixture supplied to said internal combustion engine through the use of an exhaust gas model.

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