Model-based statistical process to determine diagnostic...

Details Model-based statistical process to determine diagnostic... Model-based statistical process to determine diagnostic...

2006-11-21

2006-11-21

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Method of operation

C415S118000, C415S165000, C060S600000

Reexamination Certificate

active

07137773

ABSTRACT:
A method of determining diagnostic limits for a vane position sensing system installed in a variable nozzle turbocharger (VNT). The method includes defining mechanical input probability distribution functions (PDFs) of the VNT, describing the vane position sensing system in terms of component models and defining component parameter PDFs for parameters associated with the component models. Vane position signal PDFs based are generated on the mechanical input PDFs, the component models and the component parameter PDFs, and diagnostic limits are set for the vane position sensing system based on the vane position signal PDFs.

REFERENCES:
patent: 4067661 (1978-01-01), Gebhart et al.
patent: 5346359 (1994-09-01), Propst
patent: 6427445 (2002-08-01), Isaac et al.
patent: 6681573 (2004-01-01), Arnold

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