Thermal measuring and testing – Temperature measurement – Combined with diverse art device
Reexamination Certificate
2008-09-30
2008-09-30
Verbitsky, Gail (Department: 2855)
Thermal measuring and testing
Temperature measurement
Combined with diverse art device
C374S001000, C702S099000, C702S104000, C701S034000
Reexamination Certificate
active
11497265
ABSTRACT:
A failure determination system for determining failures of temperature sensors, which is capable of easily and accurately determining failures of the sensors in actual operating temperature ranges thereof, even when the ranges are different from each other. Temperatures detected by exhaust gas temperature sensors are stored as initial temperatures when the engine has stopped. Temperatures detected by the respective sensors after stoppage of the engine are made dimensionless based on the corresponding initial temperatures to thereby calculate dimensionless values. An estimated dimensionless value of a temperature to be detected when each sensor is normal is set in advance as an estimated normal value. Failures of the sensors are determined based on results of comparisons of the dimensionless values with the estimated normal value.
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Japanese Office Action, issued on Jan. 29, 2008, for corresponding Japanese Application No. 2005-245064.
Gosyo Eisaku
Izumiura Atsushi
Sato Daisuke
Arent Fox LLP.
Honda Motor Co. Ltd.
Jagan Mirellys
Verbitsky Gail
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