Title:
METHOD OF CALCULATING COMBUSTION RATE IN EXHAUST GAS HEATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/108286
Kind Code:
A1
Abstract:
By adding fuel to an exhaust gas passage (23a) and heating and igniting said fuel added to the exhaust passage, this method calculates the combustion rate RC of the fuel added in the exhaust gas passage when heating exhaust gas discharged from the engine (10). In this method, an exhaust gas temperature sensor (29) obtains the exhaust gas temperature To of exhaust gas flowing through the exhaust gas passage downstream of the region where the fuel added to the exhaust gas passage is combusted, the heat capacity CE of the exhaust gas is obtained, the energy amount QF of the fuel supplied to the exhaust gas passage is obtained, the exhaust gas temperature increase amount ΔTo from immediately before the exhaust gas is heated is calculated, the exhaust gas temperature change rate dTo from immediately before the exhaust gas is heated is calculated, the parameter Z relating to exhaust gas flowing through the exhaust gas passage is obtained, and the combustion rate of the fuel added to the exhaust gas passage is calculated by RC=(CE/QF)(Z・dTo+ΔTo).
Inventors:
MORI TOSHIHIRO (JP)
FUSE HIDETAKA (JP)
NUMATA YOSHIKI (JP)
FUSE HIDETAKA (JP)
NUMATA YOSHIKI (JP)
Application Number:
PCT/JP2012/000222
Publication Date:
July 25, 2013
Filing Date:
January 16, 2012
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
MORI TOSHIHIRO (JP)
FUSE HIDETAKA (JP)
NUMATA YOSHIKI (JP)
MORI TOSHIHIRO (JP)
FUSE HIDETAKA (JP)
NUMATA YOSHIKI (JP)
International Classes:
F01N3/023; F01N3/025; F01N3/029; F01N3/36
Foreign References:
| JP2011080399A | 2011-04-21 | |||
| JP2010510440A | 2010-04-02 | |||
| JP2005256633A | 2005-09-22 |
Attorney, Agent or Firm:
TANI & ABE, p. c. (JP)
Patent business corporation A valley and Abe patent firm (JP)
Patent business corporation A valley and Abe patent firm (JP)
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Claims: