Diagnosis method for vehicle systems
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United States of America Patent
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May 20, 1997
Issued Date -
N/A
app pub date -
Aug 8, 1995
filing date -
Feb 26, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A data driven, multi-dimensional diagnostic method that combines vehicle system test data, vehicle attributes, symptoms, and extrinsic data to produce vehicle system diagnostics. Data are combined according to predetermined equations to yield intermediate diagnostic results. Intermediate diagnostic results are combined recursively according to fixed expressions to produce final diagnostic results relating to the state of the vehicle system under diagnosis. Fixed expressions may be algebraic, Boolean, fuzzy logic, statistical, or relate to an expert system.
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