Patent · US Active

Diagnostic method and device for controlling an internal combustion engine

US7890245B2 · kind B2 · utility

1Cited by

8References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Thomas Breitbach · Stuttgart, DE
Achim Friedel · Stuttgart, DE

Key dates

Filing date	Sep 7, 2006
Grant date	Feb 15, 2011
Priority date	—
Expiry date	Sep 7, 2026

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2041/227
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A device and a method for controlling an internal combustion engine, in which an actual value is determined based on a lambda value and compared with a setpoint value. Based on the comparison, a correction value for a controlled variable is determined and stored. An error is detected if the correction value changes abruptly.

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