Energy based position and speed self-sensing method and...

Details Energy based position and speed self-sensing method and... Energy based position and speed self-sensing method and...

2007-07-02

2009-08-04

Dunn, Drew A (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Orientation or position

C318S479000, C318S504000

Reexamination Certificate

active

07571072

ABSTRACT:
An envelope of a voltage may be extracted using an operator to calculate a position and speed of a rotor. A position and speed sensing method may include supplying voltage to a stator, coupling the voltage into a rotor, extracting an envelope of the voltage using an operator, and calculating a rotor angular position based on the extracted envelope. A position and speed sensing apparatus may include a stator, a rotor and a controller to extract an envelope of a voltage coupled through the rotor into the stator using an operator and to calculate a rotor angular position based on the extracted envelope.

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patent: 1 736 736 (2006-12-01), None
patent: WO2006017306 (2006-02-01), None

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