Data processing: measuring – calibrating – or testing – Measurement system – Orientation or position
Reexamination Certificate
2006-09-05
2006-09-05
Bui, Bryan (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Orientation or position
C702S150000, C318S721000, C318S823000
Reexamination Certificate
active
07103498
ABSTRACT:
According to the invention, in a method for determining the angular position of a rotor, a reference voltage is set in a calibration phase, such that when the rotor, rotating at a calibration speed, passes through a particular detection position, said voltage is the same as the electromotive force induced in the one winding coil. In a subsequent measuring phase the reference voltage is updated to a value (UR) which is equal to the product of the voltage value set in the calibration phase and the ratio of the instantaneous motor rotational speed to the calibration rotational speed. The angular position of the rotor (ω1) at which the electromotive force corresponds to the updated reference voltage is thus identified as the detection position.
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patent: 5969491 (1999-10-01), Viti et al.
patent: 6046554 (2000-04-01), Becerra
patent: 0647014 (1995-04-01), None
patent: 09009676 (1997-01-01), None
patent: 11146685 (1999-05-01), None
patent: 2001008489 (2001-01-01), None
Bui Bryan
Conti Temic microelectronic GmbH
Fasse W. F.
Fasse W. G.
Moffat Jonathan
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