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公开(公告)号：US20170267486A1
公开(公告)日：2017-09-21
申请号：US15074402
申请日：2016-03-18
Applicant: Otis Elevator Company
Inventor： Amir Lotfi , Daniel M. Bohn
CPC classification number: B66B1/32 , B66B1/3407 , B66B9/00
Abstract: An elevator system includes an elevator car; a machine to impart motion to the elevator car; a brake to stop rotation of the machine, the brake comprising a first coil and a second coil, wherein removing power from the first coil and the second coil applies the brake to the machine; and a controller in communication with the brake, the controller configured to connect the first coil and the second coil in one of a first electrical configuration and a second electrical configuration.
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公开(公告)号：US10919730B2
公开(公告)日：2021-02-16
申请号：US15074402
申请日：2016-03-18
Applicant: Otis Elevator Company
Inventor： Amir Lotfi , Daniel M. Bohn
Abstract: An elevator system includes an elevator car; a machine to impart motion to the elevator car; a brake to stop rotation of the machine, the brake comprising a first coil and a second coil, wherein removing power from the first coil and the second coil applies the brake to the machine; and a controller in communication with the brake, the controller configured to connect the first coil and the second coil in one of a first electrical configuration and a second electrical configuration.
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