Patent · US Active

Procedure and device for an adaptation of a dynamic model of an exhaust gas probe

US8095296B2 · kind B2 · utility

13Cited by

3References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Thomas Kirstaetter · Kirchberg an der Murr, DE
Andreas Michalske · Leonberg, DE
Thomas Zein · Sindelfingen, DE

Key dates

Filing date	Apr 2, 2009
Grant date	Jan 10, 2012
Priority date	—
Expiry date	Jul 16, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2400/08
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention concerns a procedure and a device for an adaptation of a dynamic model of an exhaust gas probe, which is a component of an exhaust pipe of a combustion engine and with which a lambda value is determined for regulating an air-fuel composition, whereby a simulated lambda value is calculated parallel to that in a control unit or in a diagnosing unit of the combustion engine and an application function uses the simulated and the measured lambda value. According to the invention it is thereby provided that a jump behavior of the exhaust gas probe is determined during a running vehicle operation by evaluating a signal change at a stimulation of the system and that the dynamic model of the exhaust gas probe is adapted with the aid of these results.

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