06442511 is referenced by 52 patents.

A method and apparatus for determining severity of a trend toward an impending machine failure under actual operating conditions. The method and apparatus includes providing a typical failure trend based on a set of normal operating conditions for the machine, determining a slope value for the typical failure trend, determining a slope value for the trend toward the impending machine failure under the actual or proposed operating conditions, determining a weight value for at least the actual or proposed operating conditions, and determining the severity as a function of the slope values and the weight value.

Title
Method and apparatus for determining the severity of a trend toward an impending machine failure and responding to the same
Application Number
9/390063
Publication Number
6442511 (B1)
Application Date
September 3, 1999
Publication Date
August 27, 2002
Inventor
Sri K Rangarajan
Peoria
IL, US
Jagannathan Sarangapani
San Antonio
TX, US
Agent
Blackwell Sanders Peper Martin
US
Assignee
Caterpillar
IL, US
IPC
H04B 15/00
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