Method and device for detecting the electrical position of...

Details Method and device for detecting the electrical position of... Method and device for detecting the electrical position of...

2007-08-28

2007-08-28

Wolfe, Willis R. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C290S031000

Reexamination Certificate

active

10500060

ABSTRACT:
A method of detecting an angular position of a rotor of an electrical machine includes determining a rotor position for the electrical machine using data obtained from a first data source, determining a rotor position for the electrical machine using data obtained from a second data source, and switching between determining a rotor position using data obtained from the first data source and using data obtained from the second data source. A point at which switching occurs is different when a speed of rotation is increasing than when the speed of rotation is decreasing.

REFERENCES:
patent: 5461293 (1995-10-01), Rozman et al.
patent: 5691625 (1997-11-01), Kumar et al.
patent: 6681173 (2004-01-01), Turner et al.
patent: 0 952 335 (1999-10-01), None

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