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

A self-learning-based lifting control system and its anti-pinch method

A lifting control and self-learning technology, which is applied to tables with variable table heights, household utensils, furniture parts, etc., can solve problems such as collisions of moving parts, potential safety hazards, and tilting of moving parts, so as to improve the safety performance of use and reduce production costs. Consistency requirements, the effect of eliminating the consistency deviation of moving parts

Active Publication Date: 2022-07-26
上海衡鲁汽车科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the lifting process of adjusting the height of the control system, it often happens that the moving part hits the obstacle placed below or above it, causing the moving part to tilt, which poses a certain safety hazard

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
  • A self-learning-based lifting control system and its anti-pinch method
  • A self-learning-based lifting control system and its anti-pinch method
  • A self-learning-based lifting control system and its anti-pinch method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] The motor control unit can identify the anti-pinch state based on information such as steady-state current, actuating stroke, motor position, and anti-pinch threshold. The motor control unit records the current detection value or the current change rate value, the motor position, and the anti-pinch threshold value when the anti-pinch occurs, and stores it in the storage part of the motor control unit, for example, into the EEPROM, so that even if the power is turned on again, it will not be Lost recorded data. However, before the next anti-pinch occurs, it is necessary to reduce the anti-pinch threshold of the next anti-pinch judgment condition correspondingly by a certain proportion or in equal steps. easier to trigger.

[0083] figure 1 It is a schematic flowchart of an anti-pinch method based on a self-learning lifting control system.

[0084] like figure 1 As shown, the anti-pinch self-learning method includes the following steps:

[0085] Step A1: The system i...

Embodiment 2

[0101] The EEPROM of the motor control unit can be preset with a threshold table, which can be divided into blocks according to different values ​​according to main characteristic information such as current or current change rate, motor position, and each block stores different learned values. Anti-pinch threshold. In practical applications, the interpolation algorithm can be used to obtain different anti-pinch thresholds under different current detection values ​​at different positions, which can be used for anti-pinch judgment.

[0102] Table 1 gives an example of a threshold table. As shown in Table 1, the table stores the anti-pinch thresholds corresponding to different current values ​​under different motor positions. At this time, the motor power supply voltage is 12V, the no-load speed is 300+ / -10% RPM, and the rated load is 1.2 Nm.

[0103] Table 1, Threshold Table

[0104]

[0105] The motor control unit can obtain the current value and motor position detected ...

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 a self-learning-based lifting control system and an anti-pinch method. In this anti-pinch method, the anti-pinch threshold recorded in the last anti-pinch state is corrected; during the lifting and lowering process of the motor-driven lifting control system, the running current of the motor is collected according to the preset sampling period, and the motor position and current detection at the current moment are obtained. value or current change rate value; judge whether the current detection value or current change rate value at the current moment is greater than or equal to the corrected anti-pinch threshold; The rate of change value updates the old data in the EEPROM. The self-learning method can eliminate the consistency deviation of moving parts caused by fatigue in the production process and after repeated use, reduce the production consistency requirements for moving parts, and effectively achieve the function of safety and anti-pinch.

Description

technical field [0001] The invention relates to a lift control system, in particular to a lift control system based on self-learning and an anti-pinch method thereof. Background technique [0002] When a general lift control system is used, different users have differences in height and body shape. Therefore, if the height of the moving parts of the control system can be adjusted to an appropriate height, the user can be more comfortable. A related industry has developed a control system that can be raised and lowered to adjust the height of the control system for users of different heights and body types. At present, according to the control method of lifting, it is mainly divided into electric lifting and manual lifting. For the manual lifting control system, the adjustment speed is slow, the user's physical strength is required, and due to the existence of the mechanical transmission mechanism, the mechanism needs to be maintained more frequently, otherwise it is easy t...

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
Patent Type & Authority Patents(China)
IPC IPC(8): A47B9/00
CPCA47B9/00A47B2200/005A47B2200/0056A47B2200/008
Inventor 何德管陈礼樊人豪
Owner 上海衡鲁汽车科技有限公司
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