Title:
OIL DILUTION RATE CALCULATION SYSTEM OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2016/098278
Kind Code:
A1
Abstract:
An oil dilution rate calculation system of an internal combustion engine acquires a blowby gas flow ratio showing the ratio of the flow of blowby gas to the flow of gas to the combustion chamber 5 and an output current of the air-fuel ratio sensor 40 or 41 during fuel cut control in which the internal combustion engine stops the feed of fuel to the combustion chamber 5 and at a plurality of points of time of different flows of blowby gas passing through the blowby gas passage 25 and flowing to the downstream side of the throttle valve 17 in the intake passage, and calculate an oil dilution rate based on the acquired blowby gas flow ratio and output current.
Inventors:
MIYAMOTO HIROSHI (JP)
KIDOKORO TORU (JP)
IWAZAKI YASUSHI (JP)
SUZUKI KENJI (JP)
KIDOKORO TORU (JP)
IWAZAKI YASUSHI (JP)
SUZUKI KENJI (JP)
Application Number:
PCT/JP2015/005607
Publication Date:
June 23, 2016
Filing Date:
November 10, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
International Classes:
F02D41/12; F01M13/00; F02D41/24; F01M1/16
Domestic Patent References:
| WO2012146972A1 | 2012-11-01 |
Foreign References:
| DE102009046417A1 | 2011-05-12 | |||
| JP2007127076A | 2007-05-24 | |||
| JP2002243694A | 2002-08-28 | |||
| JP2011122543A | 2011-06-23 | |||
| JP2010174790A | 2010-08-12 | |||
| JP2014101863A | 2014-06-05 | |||
| JP2012031869A | 2012-02-16 | |||
| JP2008202472A | 2008-09-04 | |||
| JP2007127076A | 2007-05-24 | |||
| JP2011226351A | 2011-11-10 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chome, Minato-k, Tokyo 23, JP)
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