Title:
センサ合理性診断
Document Type and Number:
Japanese Patent JP2011506912
Kind Code:
A
Abstract:
A sensor diagnostic method, such as to determine rationality of one of three temperature sensors used in an exhaust aftertreatment system, includes determining the temperature difference between the first and second sensor, determining the temperature difference between the second and third sensor, determining whether the temperature differences are within an acceptable threshold range and comparing the two temperature differences to determine which sensor is in error, if any.
Inventors:
Corvette, todd
Berry Hill, Ross Sea.
Hirschberger, Daniel Earl.
Berry Hill, Ross Sea.
Hirschberger, Daniel Earl.
Application Number:
JP2010515230A
Publication Date:
March 03, 2011
Filing Date:
June 30, 2008
Export Citation:
Assignee:
Cummins Filtration IP ink.
International Classes:
G01K15/00; F02D45/00; G01D21/00; G01M15/04
Domestic Patent References:
| JP2003106140A | 2003-04-09 | |||
| JP2006350707A | 2006-12-28 | |||
| JP2005307778A | 2005-11-04 | |||
| JPS58129316A | 1983-08-02 | |||
| JPH0626894A | 1994-02-04 | |||
| JP2003106140A | 2003-04-09 |
Attorney, Agent or Firm:
Mieko Kashihara
Goichi Takahashi
Masahito Shibata
Goichi Takahashi
Masahito Shibata