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Method for correcting speed curve of elevator

A speed correction, speed curve technology, applied in elevators, transportation and packaging, etc., can solve the problems of elevator car moving distance error, speed deviation, etc.

Inactive Publication Date: 2013-08-21
YUNG TAY ENG
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] However, during the operation of the elevator, the cables that hang the elevator car may slide due to inertia relative to the driving pulley on which the cables are hung, or due to factors such as speed deviations caused by the response speed of the frequency converter, resulting in There is an error between the actual movement distance of the elevator car and the estimated movement

Method used

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  • Method for correcting speed curve of elevator
  • Method for correcting speed curve of elevator
  • Method for correcting speed curve of elevator

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Embodiment Construction

[0029] Preferred embodiments according to the present invention will be described below with reference to the accompanying drawings. Although the drawings and preferred embodiment show many details of the invention, the invention is not limited to the details shown. The drawings are for illustrative purposes only and are not drawn to scale.

[0030] figure 2 Displays the predetermined speed curve and corresponding acceleration curve in the second half stroke of deceleration in which the speed decreases with a constant jerk. The second half stroke of this deceleration is equivalent to figure 1 Last trip shown.

[0031] When the elevator running curve enters the second half of the deceleration stroke from the constant deceleration stroke, the acceleration a of the constant deceleration stroke 6 , the initial speed V of the half stroke after deceleration 6 and estimated residual distance S 7 is known.

[0032] Since the half-stroke after deceleration is the stroke in whic...

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Abstract

The invention relates to a method for correcting a speed curve of an elevator. The method is used for correcting a speed curve comprising a deceleration second half travel; and in the deceleration second half travel, the speed is decreased progressively to zero at positive constant jerk. The method comprises the following steps of: detecting the actual position of an elevator car to obtain an actual residual distance; comparing an estimated residual distance with the actual residual distance to obtain a residual distance error value; providing a speed correction curve used for correcting the deceleration second half travel under the condition that the residual distance error value is not zero; and superposing the speed curve and the speed correction curve to obtain the corrected speed curved.

Description

technical field [0001] The invention relates to a correction method of an elevator speed curve. Background technique [0002] In order to take into account the comfort of passengers when taking the elevator, the speed curve of the elevator is a smooth and continuous curve throughout the whole process, and the acceleration curve is a continuous curve without gaps. When the floor where the elevator car stops is input, the operation curve for controlling the movement of the elevator will be generated correspondingly according to the predetermined moving distance of the elevator car. The operation curve includes the curve of position versus time, curve of speed versus time, curve of acceleration versus time, and jerk curve against time. [0003] Such as figure 1 As shown, usually the speed curve contains the time period T 1 The inner velocity is constant jerk α 1 Increments from zero to speed V 1 The acceleration of the first half stroke (that is, non-constant acceleration ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B1/40B66B1/28
Inventor 卢为明李文雄
Owner YUNG TAY ENG
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