Method and device for diagnosing an external temperature sensor

Details Method and device for diagnosing an external temperature sensor Method and device for diagnosing an external temperature sensor

2006-08-09

2008-11-04

Cygan, Michael (Department: 2855)

Thermal measuring and testing

Temperature measurement

Temperature distribution or profile

C374S001000, C701S034000

Reexamination Certificate

active

07445383

ABSTRACT:
A method and apparatus for fault recovery and/or fault detection of an external temperature sensor of a motor vehicle, in which a temperature gradient is determined from the profile of the measured temperatures over time, in which the determined temperature gradient is compared with a predefined or predefinable limiting gradient, and in which a fault is detected as a function of this comparison.

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German Search Report dated Jan. 20, 2006 including English Translation of relevant portion (Nine (9) pages).

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