ANGULAR RESOLVER IMBALANCE DETECTION

An angular resolver system includes, for example, an imbalance detector for detecting degraded resolver output signals. The imbalance detector includes a first and second power averaging circuits and a comparator circuit. The first power averaging circuit includes a first integrator for generating o...

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Bibliographische Detailangaben
Hauptverfasser:	CHELLAMUTHU, Shanmuganand, LI, Qunying, EASWARAN, Sri Navaneethakrishnan
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS BASIC ELECTRONIC CIRCUITRY CHAMBERS PROVIDED WITH MANIPULATION DEVICES CODE CONVERSION IN GENERAL CODING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DECODING DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION HAND TOOLS INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MANIPULATORS MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PHYSICS PORTABLE POWER-DRIVEN TOOLS SIGNALLING TARIFF METERING APPARATUS TESTING TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS TRANSPORTING
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Beschreibung
Zusammenfassung:	An angular resolver system includes, for example, an imbalance detector for detecting degraded resolver output signals. The imbalance detector includes a first and second power averaging circuits and a comparator circuit. The first power averaging circuit includes a first integrator for generating over a first time window a first average power signal in response to resolver sensor output signals. The second power averaging circuit includes a second integrator for generating over a second time window a second average power signal in response to the resolver sensor output signals, where the first time window is longer than the second time window. The comparator circuit compares the first average power signal and the second average power signal and generates a fault signal when the first average power signal and the second average power signal differ by a selected voltage threshold.