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Title:
FUEL-CETANE-NUMBER ESTIMATION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/129049
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a fuel-cetane-number estimation method and device which can be implemented using a simple and inexpensive configuration whilst inhibiting outbreak of accidental fire when in a combustion state. In this fuel-cetane-number estimation method, a map specifying a relationship between cetane number and a control parameter at which NOx concentration in exhaust gas reaches a prescribed value is prepared in advance. The control parameter is variably controlled, and the transition of NOx concentration in the exhaust gas from an internal combustion engine is detected to obtain the control parameter for the internal combustion engine when the NOx concentration has reached the prescribed value, and a cetane number corresponding to the control parameter is estimated on the basis of the map.

Inventors:
YAMAMOTO, Takayuki (C/O MITSUBISHI HEAVY INDUSTRIES LTD, 16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
Application Number:
JP2013/083190
Publication Date:
August 28, 2014
Filing Date:
December 11, 2013
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
International Classes:
F02D45/00; F02D21/08; F02D41/40
Foreign References:
JP2011117392A2011-06-16
JP2011247214A2011-12-08
JP2008190403A2008-08-21
JP2008196409A2008-08-28
JP2010285901A2010-12-24
JP2008082245A2008-04-10
JP2002256931A2002-09-11
JP2002276345A2002-09-25
JP2007154699A2007-06-21
JP2009144634A2009-07-02
Other References:
See also references of EP 2940280A4
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (Room 1003, Ambassador Roppongi Buildings 16-13, Roppongi 3-chome, Minato-k, Tokyo 32, 〒1060032, JP)
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