Elevator component separation assurance system and method of operation

    公开(公告)号:US10421642B2

    公开(公告)日:2019-09-24

    申请号:US16023684

    申请日:2018-06-29

    Abstract: An elevator component separation assurance system includes a controller, and a brake controller. The controller includes an electronic processor, a computer readable storage medium, a safety motion state estimator, and a safety assurance module. The safety motion state estimator is configured to identify velocity and position of each one of a plurality of elevator components. The safety assurance module is configured to select a separation map from a plurality of pre-pre-programmed separation maps for each one of an adjacent component pair of the plurality of elevator components for initiating a Ustop that maintains elevator component separation. The brake controller is carried by each one of the plurality of elevator components, and is configured to actuate a secondary brake upon detection of a loss of communication with at least a portion of the controller.

    THRUST AND MOMENT CONTROL SYSTEM FOR AN ELEVATOR SYSTEM

    公开(公告)号:US20170158461A1

    公开(公告)日:2017-06-08

    申请号:US15366577

    申请日:2016-12-01

    CPC classification number: B66B1/30 B66B9/003 B66B11/0407

    Abstract: An elevator system includes a lane and at least one rail extending along the lane. An elevator car is arranged in the lane and is operatively coupled to the at least one rail. The elevator car has a predetermined alignment relative to the at least one rail. A propulsion system is operatively connected between the elevator car and the at least one rail. A thrust and moment control system is operatively connected to the propulsion system. The thrust and moment control system selectively controls the propulsion system to substantially maintain the predetermined alignment of the elevator car relative to the at least one rail.

    ELEVATOR TENSION MEMBER ELONGATION AND STIFFNESS MONITORING SYSTEM

    公开(公告)号:US20250122050A1

    公开(公告)日:2025-04-17

    申请号:US18487652

    申请日:2023-10-16

    Abstract: A monitoring system of an elevator system in which an elevator car and a counterweight, which are attached to a tension member, travel through a hoistway in opposite directions is provided. The monitoring system includes a controller to cause the elevator car to travel to a predefined position in the hoistway, a sensor to sense a position of the counterweight with the elevator car stopped at the predefined position and to generate data corresponding to sensing results and a processor operably coupled to the sensor and configured to analyze the data and to calculate, based on analysis results, an elongation of the tension member.

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