Elevator system using dynamic braking

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United States of America Patent

PATENT NO 9975729
SERIAL NO

14422775

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An elevator system includes a motor having a plurality of motor windings; a plurality of braking switches coupled to the motor windings, the braking switches coupling the motor windings to a common electrical point; a sensor coupled to the motor, the sensor providing a sensed signal indicative of a parameter of the motor; and a controller providing a braking signal to the braking switches in response to the sensed signal to selectively control the braking switches to short the motor windings.

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Patent Owner(s)

  • OTIS ELEVATOR COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Marvin, Daryl J Farmington, US 73 569
Rogers, Kyle W Arlington, US 11 44

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