2008

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Track 1 Session 5
8:50 to 10:00 a.m. Thursday June 15, 2006

Case Studies Using Weibull++ to Predict Potential Warranty Exposure and Life Distribution Based on Early Warranty Data

Warranty data is commonly tracked and analyzed in the automotive industry with a greater appreciation that a significant effort exerted in early detection is in the best interest of the business. This presentation highlights an analysis method to detect potential product issues early in the production cycle and the detailed steps of how it is being performed. The method involves estimation of the failure distribution from available warranty data coupled with customer usage and application specific data to more quickly detect and react to potential business risks and determine the cost impact. Failure distribution analysis for both the time and usage aspect is recommended for addition to the standard warranty analysis toolset.

Key Words: Warranty Analysis, Suspension Strategy, Weibull, Early Warning System