Electricity: motive power systems – Battery-fed motor systems
Reexamination Certificate
2006-01-24
2006-01-24
Fletcher, Marlon T. (Department: 2837)
Electricity: motive power systems
Battery-fed motor systems
C318S700000, C318S474000, C318S490000
Reexamination Certificate
active
06989641
ABSTRACT:
A method for controlling an electric machine having current sensors for less than every phase of the electric machine includes operating a processor to perform a test to preliminarily determine whether a fault exists in one or more of the current sensors and a test to finally determine that the fault exists in the one or more current sensors. The method further includes operating the processor to utilize a state observer of the electric machine to estimate states of the electric machine, wherein the state observer is provided state input measurements from each non-faulty current sensor, if any. Measurements from the current sensor or sensors determined to be faulty are disregarded. The processor controls the electric machine utilizing results from the state observer.
REFERENCES:
patent: 4509110 (1985-04-01), Levesque et al.
patent: 4695941 (1987-09-01), Kumar
patent: 4761703 (1988-08-01), Kliman et al.
patent: 4943758 (1990-07-01), Tsurumiya
patent: 5254921 (1993-10-01), Matsubara
patent: 5357181 (1994-10-01), Mutoh et al.
patent: 5469032 (1995-11-01), Otake
patent: 5514978 (1996-05-01), Koegl et al.
patent: 5661380 (1997-08-01), Obara et al.
patent: 5677611 (1997-10-01), Yoshihara et al.
patent: 5689170 (1997-11-01), Ishikawa
patent: 5739649 (1998-04-01), Akao
patent: 5912539 (1999-06-01), Sugitani et al.
patent: 6046553 (2000-04-01), Matsunaga et al.
patent: 6054827 (2000-04-01), Takatsuka et al.
patent: 6064172 (2000-05-01), Kuznetsov
patent: 6359405 (2002-03-01), Tsurumi
patent: 6683435 (2004-01-01), Liang et al.
Jeong Yu-Seok
Nagashima James M.
Patel Nitinkumar R.
Schulz Steven E.
Sul Seung Ki
Colon Santana Eduardo
DeVries Christopher
Fletcher Marlon T.
General Motors Corporation
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