METHOD FOR CALCULATING SPARK ADVANCE OF INTERNAL COMBUSTION ENGINE

Title:

METHOD FOR CALCULATING SPARK ADVANCE OF INTERNAL COMBUSTION ENGINE

Document Type and Number:

Japanese Patent JP2005180444

Kind Code:

A

Abstract:

To provide a method for calculating spark advance (ZW) for an internal combustion engine in connection with the operation conditions and knock signal K of the internal combustion engine; this method - in which the knock signal K indicates the knocking combustion of the internal combustion engine, while the spark advance degree is shifted in the retardation direction during the occurrence of knocking, and it is shifted to the advance direction when knocking does not occur - is arranged to be free from defects contained in conventional technology.

The advance direction adjustment of the spark advance degree is limited to the first required time (t1 to t2), but if no knocking (K) has occurred during the second required time (t3 to t4), which surpasses the first required time, the spark advance degree is adjusted so as to progress in the advance direction.

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Inventors:

KANTSCHAR ANTON
SLOBODA ROBERT
EICHHORN RUDI
MEINKEN ANDREAS
GOEBELS JOCHEN
BOETTGER JAN
STELZENMUELLER GOETZ
DIERSSEN KAI
GABEL FREDERIC

Application Number:

JP2004364708A

Publication Date:

July 07, 2005

Filing Date:

December 16, 2004

Export Citation:

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Assignee:

BOSCH GMBH ROBERT

International Classes:

F02D45/00; F02P5/153; F02P5/152; G06G7/70; F02D41/24; (IPC1-7): F02P5/152; F02D45/00; F02P5/153

Attorney, Agent or Firm:

Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel

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