Thermal measuring and testing – Temperature measurement – Combined with diverse art device
Reexamination Certificate
2007-09-11
2010-11-30
Verbitsky, Gail (Department: 2855)
Thermal measuring and testing
Temperature measurement
Combined with diverse art device
C374S163000, C374S183000, C374S164000, C374S144000, C703S022000, C701S108000, C060S277000
Reexamination Certificate
active
07841769
ABSTRACT:
An internal combustion engine includes an exhaust gas feedstream flowing past a gas sensing device disposed therein. The gas sensor includes an integrated electrical heating element which provides a resistance indicative of its temperature. An unknown input observer is used to determine the exhaust gas feedstream temperature based on the heating element temperature.
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Kalweit Nicholas John
Ma Qi
Verdejo Julian R.
GM Global Technology Operations Inc.
Verbitsky Gail
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