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elevator

A technology of elevators and elevator control devices, which is applied in the field of elevators and can solve problems such as waiting for a large amount of time

Active Publication Date: 2019-07-12
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when the elevator stops suddenly in the fast running section of the doorless area of ​​the hoistway, before running at high speed again, in order to determine the position data, it is necessary to make the elevator run at a low speed to the door zone with a door (door zone), but at low speed While driving, it takes a lot of time to wait for passenger rescue

Method used

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Examples

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Embodiment approach

[0024] figure 1 It is a schematic diagram showing an example of the overall configuration of an elevator according to an embodiment of the present invention. figure 1 The structure of the shown elevator 100 is a general structure, but the elevator to which this invention is applicable is not limited to this example. Hereinafter, the structure of the elevator 100 will be briefly described.

[0025] The elevator 100 includes a control cabinet 2 , a motor 4 and a car 8 connected to a counterweight 9 via a main rope 7 . In the elevator 100 , the electric power supplied from the three-phase AC power supply 1 is controlled by the elevator control device 3 in the control cabinet 2 and supplied to the electric motor 4 to drive the electric motor 4 . Then, the car 8 and the counterweight 9 are raised and lowered in the hoistway 101 by the driving force supplied from the traction sheave 5 (tractor) connected to the drive shaft of the motor 4 via the main rope 7 .

[0026] A motor rot...

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PUM

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Abstract

The present invention provides an elevator that allows an elevator car that has lost absolute position information to reach the end layer safely and quickly. In one embodiment of the present invention, after a state in which the calculation of the absolute position cannot be performed, that is, a state in which the position cannot calculated is restored to a state in which the position can be calculated, when the movement of the elevator car to the end layer is stopped, and the travel distance of the elevator car after the movement is calculated. The speed of the travel distance of the elevator car is increased when the travel distance exceeds a set distance value, and when an end layer detection device detects that the speed of the elevator car passing a predetermined position near the end layer exceeds a speed set value, control for forcibly decelerating the elevator car to the speed set value or less is performed.

Description

technical field [0001] The present invention relates to an elevator for controlling the raising and lowering of a car ascending and descending in a hoistway. Background technique [0002] In order to make the elevator car go up and down safely, it is very important to have the correct position information. For example, when the elevator stops suddenly in the fast running section of the doorless area of ​​the hoistway, before running at high speed again, in order to determine the position data, it is necessary to make the elevator run at a low speed to the door zone with a door (door zone), but at low speed While driving, a significant amount of time is required for passenger rescue to take place. [0003] In order to solve such a problem, Patent Document 1 discloses an elevator including a control device for raising and lowering the car at a first speed after an emergency stop of the car, and a control device for generating position information of the car using a speed-regu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00B66B5/06B66B1/24B66B1/34
CPCB66B1/24B66B1/3423B66B5/0018B66B5/044
Inventor 宫前真贵齐藤勇来加藤可奈子
Owner HITACHI LTD