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Title:
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2010216266
Kind Code:
A
Abstract:

To suppress degradation in fuel economy and increase in particulate number of PM, while suppressing increase in dilution rate of lubricating oil.

The control device for an internal combustion engine includes: an oil jet 46 jetting the lubricating oil toward a piston 20 reciprocating in a cylinder 12 of the internal combustion engine 10; an injection amount calculation means 72 calculating a total injection amount of fuel injected from a fuel injection valve 38 for injecting the fuel into the cylinder 12, from the start of the internal combustion engine 10; an oil temperature sensor 60 as an oil temperature measurement means measuring an oil temperature of the lubricating oil; a working fluid temperature region determination means 74 determining a working fluid temperature region A of the oil jet 46 according to the total injection amount of the fuel, from the start of the internal combustion engine 10; and an oil jet control means 76 determining whether or not the oil temperature measured by the oil temperature sensor 60 is within the working fluid temperature region A according to the total injection amount calculated by the injection amount calculation means 72, and controlling operation of the oil jet 46 according to the determination result.


Inventors:
Nomura, Hiroshi
Application Number:
JP2009000060462
Publication Date:
September 30, 2010
Filing Date:
March 13, 2009
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F01M1/08; F01M5/04; F01P3/08; F01P7/16; F02D17/02
Domestic Patent References:
2009-04-30
2008-12-11
1998-12-02
2004-10-21
2008-02-07
1985-07-27
2006-07-13