Title:
NOX SENSOR PURIFICATION PROGRAM, INTERNAL COMBUSTION ENGINE, AND NOX SENSOR PURIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/084584
Kind Code:
A1
Abstract:
In the present invention, when a predetermined purification time t1 arrives, a purification program 70 causes a DCU 52 to execute a start procedure for issuing to a control unit 34 a start command for causing the control unit 34 to perform a purification control. By means of this start command the control unit 34 is made to execute a purification procedure wherein the current flowing to a reference pump cell 28 is changed from a reference pump current I3 to a purification pump current I4 that has been set to a larger current value than the reference pump current I3. Thus, reliability and robustness of a NOx sensor with respect to disturbances is improved without the loss of durability.
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Inventors:
SAKUMOTO KOUJI (JP)
Application Number:
PCT/JP2015/081326
Publication Date:
June 02, 2016
Filing Date:
November 06, 2015
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
International Classes:
F02D45/00; G01N27/416; F01N3/00
Foreign References:
| JP2010237044A | 2010-10-21 | |||
| JP2000180400A | 2000-06-30 | |||
| JP2009074884A | 2009-04-09 | |||
| US20140202135A1 | 2014-07-24 | |||
| JP2015200643A | 2015-11-12 |
Other References:
See also references of EP 3225826A4
Attorney, Agent or Firm:
Seiryu Patent Professional Corporation et al. (JP)
Clear stream international patent business corporation (JP)
Clear stream international patent business corporation (JP)
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