Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Elevator starting torque compensation method

A technology of starting torque and compensation method, which is applied in the direction of elevators, transportation and packaging, etc., can solve the problems of effective control, limited number of encoder lines, insufficient speed and other problems, and achieve the effect of reducing dependence

Inactive Publication Date: 2010-06-16
SHANGHAI GIE EM
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its limitations, the weighing device will inevitably have a weighing deviation. The traditional controller usually overcomes this part of the load torque through the speed regulator. However, the number of encoder lines is limited. The speed information cannot be effectively controlled, resulting in unqualified elevator startup vibration; and the same weighing deviation, the faster the brake is released (equivalent to the heavier the load per beat), the worse the situation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Elevator starting torque compensation method
  • Elevator starting torque compensation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0019] The method of the invention includes several parts such as motor initial direction detection, torque compensation, compensation end judgment and the like.

[0020] During the start-up process of this method, if the speed command remains unchanged but the motor speed changes, it is considered that there is an unbalanced load. In order not to produce back-and-forth vibration, by observing the direction of the first beat speed when the brake is released, the weight of the load can be known in advance, so that it can be adjusted in one direction.

[0021] Such as figure 1 As shown, the specific process is: after the brake is opened, the controller starts to detect the actual speed direction of the motor, and enters the corresponding torque c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an elevator starting torque compensation method in an elevator control system. The method comprises the following steps: firstly the load weight information obtained from a weighting device is sent to a controller to be used as the original value of torque command before a general elevator band brake releases, then the brake is released, the speed command of the controller stays the same during the brake-braking process until the band brake is completely opened; and if weighting is accurate, the elevator can not move during the process, thus the weighting deviation can be judged by observing the actual speed of the elevator and the corresponding compensation can be carried out. The method of the invention is used in the elevator control system with the weighting device, better solves the starting problem of the elevator when the weighting is not accurate and ensures that the dependency of the elevator on the weighting device can be reduced greatly.

Description

Technical field: [0001] The invention relates to the field of electromechanical and elevator control systems, in particular to an elevator starting torque compensation method used in the elevator control system. Background technique: [0002] At present, in order to obtain good starting performance in elevator applications, the load weight information is usually obtained by the weighing device before the elevator releases the brakes and compensated by the controller. If the weighing is inaccurate, unbalanced load rotation will occur on the motor side. At this time, the brake release process is actually a continuous loading process for the elevator motor. Due to its limitations, the weighing device will inevitably have a weighing deviation. The traditional controller usually overcomes this part of the load torque through the speed regulator. However, the number of encoder lines is limited. The speed information cannot be effectively controlled, resulting in unqualified eleva...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B66B1/32
Inventor 杨根胜吴志敢黄洪剑周根富
Owner SHANGHAI GIE EM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com