Physics-of-failure assessment of a cruise control module
| Autor: | Marc Hoit, N Tiwari, K Kimseng, Michael Pecht |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Engineering
business.industry Warranty Cruise Automotive industry Thread (computing) Condensed Matter Physics Atomic and Molecular Physics and Optics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Reliability engineering Aeronautics New product development Physics of failure Electrical and Electronic Engineering Safety Risk Reliability and Quality business Cruise control |
| Zdroj: | Microelectronics Reliability. 39:1423-1444 |
| ISSN: | 0026-2714 |
| DOI: | 10.1016/s0026-2714(99)00018-9 |
| Popis: | The purpose of a cruise control system is to accurately maintain the driver’s desired set speed, without intervention from the driver, by actuating the throttle-accelerator pedal linkage. Over the past five years, owners of a particular cruise control have complained that it did not operate properly. Complaints ranged from not engaging upon command, to the cruise unexpectedly accelerating past the desired speed. A common thread among all the complaints was the intermittent nature of the problems. More than 96% of the reported failed modules removed from vehicles and returned to the company, passed bench tests. This paper presents a physics-of-failure process to identify, induce and analyze failure mechanisms causing intermittent failures, high warranty returns and cannot duplicate (CND) problems of the digital electronic cruise control module (CCM). In addition, we explain why the manufacturer’s tests were not representative of the actual automotive environments, nor were they conducted in a manner to access actual failures. We conclude with a recommendation for a physics-of-failure approach for future product development. |
| Databáze: | OpenAIRE |
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