Boots – shoes – and leggings
Patent
1991-08-08
1993-10-19
Black, Thomas G.
Boots, shoes, and leggings
36442404, 371 165, 371 291, G06F 1100
Patent
active
052552080
ABSTRACT:
A method and apparatus for on-line diagnostics, particularly for use in power circuits of a DC-DC converter is described. Signals are sensed at selected strategic test points in a circuit and compared with stored expected signals for those points under normal operating conditions. Whenever the signals sensed at the selected test points do not correlate with the corresponding expected signals, the sensed signal is compared with abnormal signals stored in the memory associated with known failure conditions for that test point. Whenever the sensed signal matches closely with a signal for a known failure condition, an indication of the particular failure is logged into memory. If the sensed signal does not match a known failure condition, an indication of an unknown failure condition is logged into memory. Failure information can later be retrieved by maintenance personnel at a convenient time or can be displayed on an operator's display during operation.
REFERENCES:
patent: 4241403 (1980-12-01), Schultz
patent: 4307455 (1981-12-01), Juhasz et al.
patent: 4484329 (1984-11-01), Slamka et al.
patent: 4521885 (1985-06-01), Melocik et al.
patent: 4539682 (1985-09-01), Herman et al.
patent: 4710932 (1987-12-01), Hiroshi
patent: 4817418 (1989-04-01), Asami et al.
patent: 4847795 (1989-07-01), Baker et al.
patent: 4853850 (1989-08-01), Krass et al.
patent: 4906970 (1990-03-01), Momura
patent: 4926330 (1990-05-01), Abe et al.
patent: 5051996 (1991-09-01), Bergeson et al.
Coulter John L.
Monaghan William D.
Thakore Prashant B.
AEG Westinghouse Transportation Systems, Inc.
Black Thomas G.
Park Collin W.
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