Electronic components are delivered today with "0 failure quality" to automotive industry. For these components it is required to function the lifetime of a car (15 year at different stresses). The achievement of failure rates smaller than 1 ppm demands an enormous effort during the development phase and experts knowing all the failure mechanisms which potentially can lead to a breakdown of the component or the system. Considering all the influences, development cycles become intolerably long and so costly that over the product lifetime there is no way to recover. Unlike to consumer electronics automotive components often are quite near to the physical limits considering temperature and current density. In order to avoid a catastrophic failure methods are needed to measure the state (function and age) during the operation of the system (health monitoring). Redundancy can help to reduce the probability to fail, but monitoriing of degradation processes in the component makes it possible to predict the remaining lifetime and a complete breakdown can be avoided by in time substitution of the module.
Avoidance of catastrophic fails through redundancy and health monitoring
Innovations in Electro Mobility and Clean Microtechnologies join the Discussion, MicroCar, 4 ; 12-18
2011
7 Seiten, 15 Bilder, 3 Quellen
Conference paper
English
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