Title:
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2005155339
Kind Code:
A
Abstract:
To appropriately suppress temperature rise of an exhaust system in accordance with a fuel octane number.
High-octane gasoline and low-octane gasoline are injected from fuel injection valves 110H, 110L provided each cylinder of an internal combustion engine 100, at an arbitrary supply proportion. In accordance with the supply proportion (octane number) of fuel, ignition timing is delayed. When excessive temperature rise of the exhaust system is prevented by increasing the fuel amount, if rich air fuel ratio misfire occurs by the increase in the fuel amount, fuel cut is performed to prevent overheating and misfire of the exhaust system of the engine.
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Inventors:
NIIMI KUNIAKI
Application Number:
JP2003391035A
Publication Date:
June 16, 2005
Filing Date:
November 20, 2003
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02P5/15; F02D19/06; F02D37/02; F02D41/00; F02D41/14; F02D41/22; F02D45/00; F02P5/152; (IPC1-7): F02D41/22; F02D19/06; F02D45/00; F02P5/15
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Masaya Nishiyama
Jun Tsuruta
Tetsuro Shimada
Masaya Nishiyama