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Expert Guided Adaptive Maintenance
Stockholm University, Faculty of Social Sciences, Department of Computer and Systems Sciences.
2014 (English)In: European Conference of the Prognostics and Health Management Society, New York: The Prognostics and Health Management Society (PHM Society) , 2014Conference paper, Published paper (Refereed)
Abstract [en]

The heavy truck industry is a highly competitive business field; traditionally maintenance plans for heavy trucks are static and not subject to change. The advent of affordable telematics solutions has created a new venue for services that use information from the truck in operation. Such services could for example aim at improving the maintenance offer by taking into account information of how a truck has been utilized to dynamically adjust maintenance to align with the truck’s actual need. These types of services for maintenance are often referred to as condition based maintenance (CBM) and more recently Integrated Vehicle Health Management (IVHM). In this paper we explain how we at Scania developed an expert system for adapting the maintenance intervals dependent on operational data from trucks. The expert system is aimed at handling components which maintenance experts have knowledge about but do not find it worth the effort to create a correct physical wear-model for. We developed a systematic way for maintenance experts to express how operational data should influence the maintenance intervals. The rules in the expert system therefore are limited in what they can express, and as such our presented system differs from other expert systems in general. In a comparison between our expert system and another general expert system framework, the expert system we constructed outperforms the general expert framework using our limited type of rules.

Place, publisher, year, edition, pages
New York: The Prognostics and Health Management Society (PHM Society) , 2014.
National Category
Information Systems
Research subject
Computer and Systems Sciences
Identifiers
URN: urn:nbn:se:su:diva-110985ISBN: 978-1-936263-16-5 (print)OAI: oai:DiVA.org:su-110985DiVA: diva2:773759
Conference
European Conference of the Prognostics and Health Management Society, Nantes France, 8th-10th July 2014
Available from: 2014-12-19 Created: 2014-12-19 Last updated: 2015-06-15Bibliographically approved

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