Elevator apparatus and rope sway suppressing method therefor
AssigneesMitsubishi Electric Research Laboratories, Inc., Mitsubishi Electric Corporation
InventorsDaiki FUKUI, Seiji WATANABE, Daisuke NAKAZAWA, Mouhacine BENOSMAN
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Abstract
In an elevator apparatus, an actuating device applies a tension for suppressing a lateral vibration to a rope. A computation controller controls the actuating device by using lateral-vibration information of the rope as an input. Also, the computation controller selectively outputs, to the actuating device, a plurality of actuating commands including a first actuating command for applying the tension to the rope regardless of phase information of the lateral vibration of the rope and a second actuating command for applying a tension fluctuation for damping the lateral vibration to the rope based on the phase information.
Claims10
An elevator apparatus, comprising:
- an actuating device for applying a tension for suppressing a lateral vibration to a rope;
- and
- a computation controller for controlling the actuating device by using lateral-vibration information of the rope as an input,
- wherein the computation controller selectively outputs, to the actuating device, a plurality of actuating commands including a first actuating command for applying the tension to the rope regardless of phase information of the lateral vibration of the rope and a second actuating command for applying a tension fluctuation for damping the lateral vibration to the rope based on the phase information.
A rope sway suppressing method for an elevator apparatus, for applying a tension to a rope by an actuating device to suppress a lateral vibration of the rope, the rope sway suppressing method comprising:
- applying the tension to the rope regardless of phase information of the lateral vibration of the rope when an amplitude of the lateral vibration of the rope is smaller than a preset amplitude threshold value;
- and
- applying a tension fluctuation for damping the lateral vibration to the rope based on the phase information when the amplitude becomes equal to or larger than the amplitude threshold value.
A rope sway suppressing method for an elevator apparatus, for applying a tension to a plurality of ropes arranged side by side by an actuating device to suppress lateral vibrations of the ropes, comprising:
- determining whether or not the lateral vibrations of the ropes are synchronous with each other to apply the tension to the ropes regardless of phase information of the lateral vibrations of the ropes when the lateral vibrations of the ropes are asynchronous with each other, and to apply a tension fluctuation for damping the lateral vibrations to the ropes based on the phase information when the lateral vibrations of the ropes are synchronous with each other.
A rope sway suppressing method for an elevator apparatus, for applying a tension to a rope by an actuating device to suppress a lateral vibration of the rope, the rope sway suppressing method comprising:
- applying the tension to the rope regardless of phase information of the lateral vibration of the rope when sway of a building equal to or larger than a preset building sway threshold value is detected;
- and
- applying a tension fluctuation for damping the lateral vibration to the rope based on the phase information when an amplitude of the lateral vibration of the rope becomes equal to or larger than a preset amplitude threshold value.
Dependencies are inferred from the claim text.