Title:
内燃機関におけるノッキングを識別する方法
Document Type and Number:
Japanese Patent JP2004506847
Kind Code:
A
Abstract:
Devices and methods for knock detection and knock control are described, in which, in addition to the customary component parts, the knock-detection circuit has a filter with switchable filter characteristic. The switchover of the filter characteristic, i.e. the shift, for example, of the mid-frequency of the filter, is carried out taking into consideration specifiable quantities or parameters, for instance, as a function of rotational speed. During the switchover of the filter characteristic, i.e. the shift of the mid-frequency, problems could occur in the knock detection; that is why measures are proposed which carry out the knock detection according to a special knock-detection algorithm during a switchover phase lasting a specifiable time.
Inventors:
Jürgen Sauler
Steffen Franke
Stephan Unland
Oscar Torno
Axel Heinstein
Kirsten Clute
Werner Hemming
Michael Boyerle
Steffen Franke
Stephan Unland
Oscar Torno
Axel Heinstein
Kirsten Clute
Werner Hemming
Michael Boyerle
Application Number:
JP2002519905A
Publication Date:
March 04, 2004
Filing Date:
August 03, 2001
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02P5/152; G01L23/22; F02D35/00; (IPC1-7): F02D35/00
Domestic Patent References:
| JP2002030985A | 2002-01-31 | |||
| JPH07103856A | 1995-04-21 |
Attorney, Agent or Firm:
Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel
Einzel Felix-Reinhard
Reinhard Einsel