US 2007/0163536 A1Published application

Control device of internal combustion engine

AssigneeToyota Jidosha Kabushiki Kaisha

InventorsShigeo Okubo, Zenichiro Mashiki, Nobuyuki Shibagaki, Hiroyuki Nomura, Yoshiyuki Shogenji, Kenichi Kinose, Takuji Matsubara, Yusuke Nakayama, Yukihiro Sonoda, Koji Morita

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Abstract

Avoiding inconvenience during purge processing execution of fuel vapor in an internal combustion engine including an in-cylinder injector and an intake manifold injector. An engine ECU 300 executes a program including the steps of: when the purge control execution flag is ON (YES at S400), the step (S410) of calculating injection ratio (DI ratio) r; the step (420) of calculating the basic injection amounts of the in-cylinder injector and the intake manifold injector; when the injection ratio r is not 0 (NO at S430) and the injection ratio r is not 1 (NO at S460), the step (S480) of substituting 0 for purge reduction calculation value fpgd at the in-cylinder injector side, and substituting fpg for purge reduction calculation value fpgp of the intake manifold injector side; and the step (490) of calculating the final injection amounts of the in-cylinder injector and the intake manifold injector.

Claims5

Dependent claims

A control device of an internal combustion engine including first fuel injection means for injecting fuel into a cylinder, and second fuel injection means for injecting the fuel into an intake manifold, and being configured to execute purge processing of fuel vapor, comprising:

control means for controlling the fuel injection means to inject the fuel by sharing the injection between said first fuel injection means and said second fuel injection means according to conditions required in said internal combustion engine;
and
purge control means for controlling the fuel injection means to correct a fuel injection amount corresponding to an introduced purged fuel amount during execution of said purge processing by sharing the correction between said first and second fuel injection means, wherein
said purge control means includes means for controlling the fuel injection means such that a ratio of the fuel injection amount of said first fuel injection means with respect to a whole fuel supply amount does not change in a region of the fuel injection shared by said first and second fuel injection means.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 11/715,972Filed 9 Mar 2007
Priority: JP 2004-17741615 Jun 2004
Published: 19 Jul 2007
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

F02D 41/0042
Adding fuel vapours, e.g. drawn from engine fuel reservoir: controlling the combustible mixture as a function of the canister purging, e.g.…
F02D 41/3023
Characterised by the mode being used: a mode being the stratified charge spark-ignited mode
F02D 41/3094
Controlling fuel injection: the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the…
F02M 63/029
Having more than one common rail: per cylinder bank, e.g. storing different fuels or fuels at different pressure levels per cylinder bank

Family

Application11/150,368Division · filed 13 Jun 2005
Application11/715,972Division · filed 9 Mar 2007
US 2005/0274353 A1Published application
US 7,234,447 B2Related patent
US 7,273,043 B2Related patent
US 2007/0163536 A1This patent

From the US filing history. Foreign family members aren’t listed.