Elevator speed control

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United States of America Patent

PATENT NO 9957131
SERIAL NO

14651284

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Embodiments are directed to calculating a current associated with a motor of an elevator based on an output of a speed regulator, and controlling the elevator based on the current. Embodiments are directed to examining a feeder current obtained via a converter current sensor of a regenerative drive during a peak power condition, and regulating a speed of an elevator based on the feeder current.

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Patent Owner(s)

Patent OwnerAddress
OTIS ELEVATOR COMPANYONE CARRIER PLACE FARMINGTON CT 06032

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Agirman, Ismail Southington, US 73 327
Piedra, Edward Chicopee, US 13 27

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