Method for monitoring a component situated in an exhaust gas...

Details Method for monitoring a component situated in an exhaust gas... Method for monitoring a component situated in an exhaust gas...

2007-08-28

2007-08-28

Cronin, Stephen K. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C374S144000, C073S118040, C060S277000

Reexamination Certificate

active

10996490

ABSTRACT:
A method for monitoring a component situated in an exhaust gas region of an internal combustion engine in which the low pass behavior, which is determined by the heat capacity of the component, is monitored by a valuation of a measure of a first exhaust gas temperature, which appears upstream of the component that is to be monitored, and of a second exhaust gas temperature, which is recorded by a second temperature sensor downstream from the component to be monitored.

REFERENCES:
patent: 3882451 (1975-05-01), Fujishiro et al.
patent: 5177463 (1993-01-01), Bradshaw et al.
patent: 2004/0221571 (2004-11-01), Lewis et al.
patent: 2005/0103099 (2005-05-01), van Nieuwstadt et al.
patent: 44 26 020 (1996-01-01), None

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