Lifetime prediction and design of reliability tests for high-power devices in automotive applications

摘要: Different procedures are defined and compared to extract the statistical distribution of thermal cycles experienced by power devices that installed in hybrid vehicles operated according arbitrary mission profiles. This enables both design efficient accelerated tests tailored on realistic data provide input for lifetime prediction models. Initially, system is predicted under assumption linear accumulation damage produced low cycling fatigue. Also, a novel model based some fundamental equations introduced which takes into consideration creep compliant materials when they submitted cycles.