Method for detecting knocking

US5743233A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Stefan Unland · Schwieberdingen, DE
• Oskar Torno · Schwieberdingen, DE
• Stefan Bollig · Markgröningen, DE
• Werner Haeming · Neudenau, DE
• Ulrich Rothhaar · Milano, IT
• Iwan Surjadi · Leinfelden, DE
• Wolfgang Hilbert · Heubach, DE
• Robert Sloboda · Yokohama, JP
• Michael Baeuerle · Rutesheim, DE
• Thomas Edelmann · Bietigheim-Bissingen, DE

Key dates

• Filing date: Apr 1, 1996
• Grant date: Apr 28, 1998
• Expiry date: Apr 1, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G01L23/225
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for detecting knocking provides for weighting or limitation of the knocking threshold. For this purpose, on the one hand a normal range of the reference level is defined and in the case of a deviation from this normal range the knocking threshold is multiplied by a weighting factor less than 1 and, alternatively, the knocking threshold is limited when a prescribable limit value is reached.