Robert Boschgmbh

Stefan Kempf

Robert Sloboda

Werner Haeming

Carsten Kluth

Oskar Torno

Federico Buganza

Anton Kantschar

Matthias Biehl

Andreas Meinken

Kai Dierssen

Jochen Goebels

Jan Boettger

Rudi Eichhorn

Frédéric Gabel

Elvira Perless

A method for evaluating abnormal combustion events of an internal combustion engine of a motor vehicle by regression calculation of a physical reference variable, in which method a recognition variable of the abnormal combustion event is calculated from a measured sensor signal. In a method with which abnormal combustion processes of the internal combustion engine can be reliably recognized and classified at all operating points, a stepwise system is used for regression calculation of the recognition variable, in which system at least one reference variable that corresponds to a measured reference variable of the sensor signal is calculated from the sensor signal.

Method and apparatus for evaluating abnormal combustion events of an internal combustion engine of a motor vehicle by regression calculation of a physical variable

An apparatus for furnishing an amplified sensor signal of a knock sensor, encompassing an analog amplifier for amplifying the sensor signal in accordance with a first definable gain factor; an analog/digital converter for digitizing the amplified sensor signal into a digitized sensor signal; a digital amplifier for amplifying the digitized sensor signal in accordance with a second definable gain factor; and a control unit in order to furnish the first and the second gain factor as a function of a baseline sound level of the sensor signal, the baseline sound level corresponding to the component of the solid-borne sound signal generated in normal operation without knocking.

Knock detection system and method for an amplifier control for a knock signal

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Vaihingenenz, Germany

Stefan Kempf