Invention Grant
- Patent Title: Motion feedback in an elevator
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Application No.: US16029298Application Date: 2018-07-06
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Publication No.: US11584617B2Publication Date: 2023-02-21
- Inventor: Antti Saarelainen , Andrej Burakov
- Applicant: KONE Corporation
- Applicant Address: FI Helsinki
- Assignee: KONE Corporation
- Current Assignee: KONE Corporation
- Current Assignee Address: FI Helsinki
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: EP16150464 20160107
- Main IPC: B66B1/32
- IPC: B66B1/32 ; B66B5/02 ; B66B5/06 ; B66B1/34 ; B66B9/00 ; B66B11/04

Abstract:
An elevator drive apparatus is described which includes a drive unit for driving an elevator car, a brake device for braking a motion of the elevator car, a detector for detecting an electrical operation amount of the drive unit, and a controller. The controller is configured to release the brake device, to compare the detected electrical operation amount with a threshold, and to apply the brake device when the detected electrical operation amount exceeds the threshold. In this way, it is ensured that a speed of the elevator car in case of a rescue situation is within a safety limit.
Public/Granted literature
- US20180312370A1 MOTION FEEDBACK IN AN ELEVATOR Public/Granted day:2018-11-01
Information query
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