| Abstract
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<p>Operators of fleets of vehicles d … <p>Operators of fleets of vehicles desire the best possible availability and usage of their vehicles. This means the preference is that maintenance of a vehicle is scheduled with as long intervals as possible. However, it is then important to be able to detect if a component in a specific vehicle is not functioning properly earlier than expected (due to e.g. manufacturing variations). This paper proposes a telematic based fault detection scheme for enabling fault detection for diagnostics by using a population of vehicles. The basic idea is that it is possible to create low-dimensional representations of a sub-system or component in a vehicle, where the representation (or model parameters) of a vehicle can be monitored for changes compared to the model parameters observed in a fleet of vehicles. If a model in a vehicle is found to deviate compared to a group of models from a fleet of vehicles, then the vehicle is judged to need diagnostics for that component (assuming the deviation in the model cannot be attributed to e.g. a different driver behavior). The representation should be low-dimensional so it is possible to have it transferred over a limited wireless communication channel to a communications center where the comparison is made. The algorithm is shown to be able to detect leakage on simulated data from a cooling system, work is currently in progress for detecting other types of faults.</p>detecting other types of faults.</p>
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| Author
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Stefan Byttner +
, Thorsteinn Rögnvaldsson +
, Magnus Svensson +
|
| Conference
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SAE World Congress & Exhibition, April 2008, Detroit, Michigan, United States
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| DOI
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http://dx.doi.org/10.4271/2008-01-1297 +
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| Diva
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http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:239275
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| HostPublication
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Proceedings of the SAE World Congress & Exhibition +
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| PublicationType
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Conference Paper +
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| Publisher
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SAE Inc. +
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| Series
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SAE Technical Papers ; 2008-01-1297 +
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| Title
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Self-organized Modeling for Vehicle Fleet Based Fault Detection +
|
| Year
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2008 +
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| Has queryThis property is a special property in this wiki.
|
Publications:Self-organized Modeling for Vehicle Fleet Based Fault Detection +
, Publications:Self-organized Modeling for Vehicle Fleet Based Fault Detection +
, Publications:Self-organized Modeling for Vehicle Fleet Based Fault Detection +
, Publications:Self-organized Modeling for Vehicle Fleet Based Fault Detection +
, Publications:Self-organized Modeling for Vehicle Fleet Based Fault Detection +
, Publications:Self-organized Modeling for Vehicle Fleet Based Fault Detection +
, Publications:Self-organized Modeling for Vehicle Fleet Based Fault Detection +
, Publications:Self-organized Modeling for Vehicle Fleet Based Fault Detection +
, Publications:Self-organized Modeling for Vehicle Fleet Based Fault Detection +
, Publications:Self-organized Modeling for Vehicle Fleet Based Fault Detection +
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| Categories |
Publication +
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| Modification dateThis property is a special property in this wiki.
|
30 September 2016 20:41:21 +
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