Title:
ENGINE OIL DILUTED STATE ESTIMATING DEVICE
Document Type and Number:
Japanese Patent JP2008138538
Kind Code:
A
Abstract:
To accurately estimate an engine oil diluted state by post injection.
An engine oil diluted degree Dd per one combustion cycle is calculated based on fuel injection amounts Qs1, Qs2 in the post injection, injection intervals ti1, ti2 being time between the post injection and fuel injection immediately before the post injection and injection timing tt1, tt2 for the post injection, and an engine oil dilution amount Qd is calculated by integrating the diluted degree Dd.
Inventors:
KURATA KAZUO
Application Number:
JP2006323415A
Publication Date:
June 19, 2008
Filing Date:
November 30, 2006
Export Citation:
Assignee:
MITSUBISHI MOTORS CORP
International Classes:
F01M11/10; F01M11/12; F01N3/02; F02D45/00
Domestic Patent References:
| JP2005307778A | 2005-11-04 | |||
| JP2000045828A | 2000-02-15 |
Foreign References:
| WO2006005650A1 | 2006-01-19 |
Attorney, Agent or Firm:
Koji Nagato
Junichi Yamanaka
Junichi Yamanaka
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