Title:
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2009270523
Kind Code:
A
Abstract:
To provide a control device for an internal combustion engine capable of reducing a frequency of the occurrence of knocking.
EFI-ECU executes a program provided with a step S100 for determining whether knocking occurs or not, a step S102 for retarding ignition timing by a predetermined retardation angle when it is determined that the knocking occurs (Yes in S100), a step S104 for advancing ignition timing by a predetermined advancement angle when it is determined that the knocking does not occur (No in S100), and a step S108 for prohibiting the renewal of a KCS learning value indicating corrected ignition timing if an alcohol concentration DEN in fuel is not lower than a predetermined concentration (Yes in S106).
Inventors:
TOMITA YUKIEI
Application Number:
JP2008123163A
Publication Date:
November 19, 2009
Filing Date:
May 09, 2008
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D45/00; F02P5/152; F02P5/153
Domestic Patent References:
| JP2007162649A | 2007-06-28 | |||
| JPH1068376A | 1998-03-10 |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yutaka Horii
Nobuo Arakawa
Toshio Morita
Yutaka Horii
Nobuo Arakawa
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