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Elevator controller

A control device and elevator technology, applied in the field of elevator control devices, can solve the problems of aroused car vibration, hoist gain decrease, car ride feeling deterioration, etc., so as to suppress lateral vibration, prevent the deterioration of ride feel, and speed up the rotation speed. the effect of change

Active Publication Date: 2011-09-21
MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, since the gain of the hoist is decreased by increasing the frequency of the rotation speed change of the motor, the desired driving force cannot be obtained.
In addition, when the gain of the hoist is set to be large, the vibration of the car is excited, and the ride quality of the car during normal operation may deteriorate.

Method used

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Examples

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Embodiment approach 1

[0013] figure 1 It is a block diagram showing the elevator control device according to Embodiment 1 of the present invention. exist figure 1 Among them, a car 2 and a counterweight 3 are provided in the hoistway 1 so as to be able to go up and down. A hoist (drive device) 4 and a deflector pulley 5 for raising and lowering the car 2 and the counterweight 3 are provided on the upper portion of the hoistway 1 .

[0014] The hoist 4 has a hoist main body 6 including a motor, and a drive pulley 7 that is rotated by the hoist main body 6 . A plurality of main ropes (moving connectors) 8 are wound on the driving pulley 7 and the deflecting pulley 5 . The car 2 and the counterweight 3 are suspended in the hoistway 1 by respective main ropes 8 . One end of each main rope 8 is connected to the upper portion of the car 2 , and the other end of each main rope 8 is connected to the upper portion of the counterweight 3 .

[0015] The car 2 is provided with a car vibration measuring de...

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Abstract

An elevator controlling device can prevent depravation of riding felling of litter when operating normally, and can more reliably restrain transverse vibration of the movement connection body. The elevator controlling device (11) has a drive control section (14), a control mode switching section (12) and a calculation section (13). The drive control section (14) can switch between the general mode of restraining the variation frequency of the rotate speed of the drive pulley (7) in determined low-frequency band and vibration abatement mode of making the rotate speed varies to a frequency higher than the low-frequency band when varying the rotate speed of the drive pulley (7) in terms of wave. The control mode switching section (12) detects the transverse vibration of the main cordage (8),the control mode of the drive control section (14) is switched to the vibration abatement mode. The calculation section (13) calculates the signal counteracting the transverse vibration. The drive control section (14) control the rotation of the drive pulley (7) to restrain the transverse vibration based on the information from the calculation section (13) when in the vibration abatement mode.

Description

technical field [0001] The present invention relates to an elevator control device for suppressing lateral vibration of a moving connecting body, such as a rope or a control cable, which moves with the movement of the car. Background technique [0002] When the tension of the main ropes suspending the car changes due to vibration of the car caused by passengers in the car or shaking of the building caused by earthquakes or strong winds, the main ropes vibrate in the vertical direction and also in the horizontal direction. In addition, due to the vertical vibration of the car, the governor rope and control cables that move together with the car may also vibrate in the horizontal direction. In this way, when vibration in the horizontal direction (transverse vibration) occurs in the moving connecting body such as the main rope, the moving connecting body interferes with lifting equipment such as guide rails or various switches, and the lifting equipment and the moving connectin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B1/00
Inventor 福井大树渡边诚治汤村敬西山秀树塩崎秀树
Owner MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP
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