Patent · US Expired

Method for detecting knocking

US6591660B1 · kind B1 · utility

5Cited by

4References

5Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Steffen Franke · Schwieberdingen, DE
Oskar Torno · Schwieberdingen, DE
Axel Heinstein · Welzheim, DE
Carsten Kluth · Stuttgart, DE
Werner Haeming · Neudenau, DE
Michael Baeuerle · Rutesheim, DE

Key dates

Filing date	Jul 19, 2001
Grant date	Jul 15, 2003
Priority date	—
Expiry date	Sep 12, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for knock detection in an internal combustion engine is disclosed, in which the output signal of at least one knock sensor, which is associated with the engine, is evaluated with the aid of an evaluation device. Knocking is detected when the prepared signal of the knock sensor exceeds a predeterminable reference level. The calculation of the input signal of the reference level tracking takes place as a function of whether the internal combustion engine is in a dynamic operating state or not, wherein in order to calculate the reference level in the event of dynamics, measurement values are also used which were determined when knocking was detected.

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