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Elevator running curve correcting method

A technology for elevator operation and curves, applied in the field of elevators, can solve the problems of not being able to satisfy high computing efficiency and achieving low operating efficiency

Active Publication Date: 2014-11-19
YUNGTAY ELEVATOR EQUIP CHINA
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

From the perspective of implementation, the curve needs to be stored and calculated in segments, and the operating efficiency is low, which cannot better meet the needs of using the limited computing resources of the elevator to achieve high computing efficiency.

Method used

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  • Elevator running curve correcting method

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] When the elevator runs from the uniform deceleration area (T 6 ) into deceleration zone (T 7 ) at the instant moment, the speed of the elevator at this time is set to v 0 , the theoretically estimated remaining distance is S 0 .

[0034] Due to the deceleration and deceleration zone in the theoretically estimated speed curve (T 7 ) is a constant value, if the jerk is α, then the initial acceleration a of the deceleration zone 0 Expressed as:

[0035] a 0 =αT 7 (3)

[0036] The initial velocity v in the deceleration zone 0 and the theoretical estimated remaining distance is S 0 Expressed as:

[0037] v 0 = 1 2 α T 7 2 - - - ( 4 ...

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Abstract

The invention relates to an elevator running curve correcting method. The elevator running curve correcting method is used for correcting an estimated running curve after an elevator enters a speed reduction area so as to solve the problem that the elevator stops inaccurately due to position sliding. The elevator running curve correcting method includes steps of measuring the actual surplus distance of the elevator, comparing the actual surplus distance with the estimated surplus distance to obtain a deviation surplus distance. By the elevator running curve correcting method on the basis of trigonometric function, a corrected displacement curve, a speed curve, an acceleration curve and a jerk curve are all smooth and continuous, the curves are convenient for solution without piecewise calculation and storage; the corrected curves and a theoretical estimated curve are linearly superposed to obtain the corrected running curve. Accordingly, the elevator can smoothly stop, and comfort of passengers is achieved to the greatest extent.

Description

technical field [0001] The invention relates to elevator technology, in particular to an elevator running curve correction method based on trigonometric functions. technical background [0002] During the operation of the elevator, the steel wire rope may slip relative to the driving wheel due to inertia, or the operating speed deviation due to the response speed of the frequency converter, resulting in a deviation between the actual travel distance of the elevator car and the estimated distance, resulting in the elevator Docking inaccurate issues. [0003] The input signal of the frequency converter that controls the operation of the elevator is determined by the estimated elevator running speed curve, so the generation and online optimization of the elevator speed curve are of great significance to the running performance of the elevator. The usual elevator running curve (such as figure 1 ) including the jerk zone (T 1 ), uniform acceleration region (T 2 ), deceleratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B1/40G06F19/00
Inventor 安康卢为明杨亚军
Owner YUNGTAY ELEVATOR EQUIP CHINA
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