ENBIS: European Network for Business and Industrial Statistics

ICAR – An Integrated Method to Create and Assess Reliability Test Plans

Abstract

Submitted by

Christoph Ruf

Authors

Christoph Ruf (Daimler AG), Nikolaus Haselgruber (CIS Consulting in Industrial Statistics GmbH)

Abstract

Due to very tight time schedules in the development of heavy duty trucks there is limited time for planning reliability activities. Nevertheless, a sufficiently valid statement is expected.
ICAR is a collection of methods for creation and assessing test programs. These test programs need to have a robust design (DoE) and the capability to demonstrate a reliability target. To get the best trade-off between testing budget and the predicted warranty costs it is also possible to adjust the test program by reducing these total costs till an optimum.
The aim of ICAR is to obtain a statistically reliable, methodologically verifiable and reproducible statement with few assumptions. A practical application of the ICAR method will be shown.

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