Device for knock detection in internal combustion engine

US5996398A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Richard Schleupen · Großingersheim, DE
• Joerg Bonitz · Rochlitz, DE
• Stephan Hartmann · Schwieberdingen, DE
• Juergen Foerster · Bietigheim-Bissingen, DE

Key dates

• Filing date: Aug 13, 1996
• Grant date: Dec 7, 1999
• Expiry date: Aug 13, 2016

Classification

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

Abstract

A device for detecting a knocking in an internal combustion engine has an evaluating facility, a knock sensor for sensing knocking of an internal combustion engine and producing output signals of the knocking sensor, an evaluation facility for obtaining the filtered signals from the filter from the devices and evaluating the same and a device for controlling a center frequency of at least one of the filter devices depending on at least one operating parameter of the internal combustion engine.