Patent Document ID: 20040044499
Application ID: 10231084
Patent Flag: 0

Claim One:
1. A method for determining reliability and a remaining time before failure with statistical confidence for an electric motor system, comprising steps performed by a computer system of: acquiring and organizing historical motor repair data corresponding to the motor system into a computer system database; continually monitoring and uploading operational parameter data from sensors at the motor system to the computer system; performing failure analysis based on a composite of reliability probability distributions corresponding to predetermined sub-populations of historical motor system failure causes; developing a causal network for modeling reliability of one or more motor system components and assessing motor system component condition based on the causal network; performing an integrated causal network and reliability analysis of the motor system, wherein results from performing failure analysis based on historical data are integrated with analysis results based on the causal network to compute a quantitative value for a time remaining before failure with an acertained statistical confidence; and outputing the computed value on a display device associated with the computer system.