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

Anti-backlash locking mechanism driving control method and system for spacecraft

A locking mechanism and a technology for spacecraft, which are applied to motor vehicles, aerospace vehicles, and docking devices for aerospace vehicles, etc., can solve minor problems and achieve the effects of improving reliability, avoiding jamming, and reducing the amount of calculation.

Pending Publication Date: 2021-10-08
BEIJING INST OF CONTROL ENG
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem of the present invention is: to overcome the deficiencies of the prior art, aiming at the plastic deformation characteristics of the structure of the anti-backlash mechanism stand-alone machine, a driving control method for the anti-backlash locking mechanism for space vehicles is provided. The size of the current ensures that during the forward locking task, the driving torque of the mechanism is always not greater than the torque of the reverse unlocking, so as to avoid stuck faults caused by plastic deformation of the structure

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
  • Anti-backlash locking mechanism driving control method and system for spacecraft
  • Anti-backlash locking mechanism driving control method and system for spacecraft
  • Anti-backlash locking mechanism driving control method and system for spacecraft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0058] The control computer can control the anti-backlash mechanism through fixed address injection, and the fixed address injection information involved includes:

[0059]

[0060] (1) The anti-backlash mechanism is positively locked

[0061] a) Control method

[0062] The requirements for the use of the anti-backlash mechanism are: when the anti-backlash mechanism is connected to the mechanism and locked in the forward direction, it will be driven at a frequency of 200Hz at the first gear. Under normal circumstances, it will run to Lock switch position.

[0063] If it detects that the locking Hall output signal changes from high to low within 50,000 steps of forward running, it will continue to move forward for 1,000 steps;

[0064] If the locking Hall output signal is still high after 50,000 steps of forward running, it will be driven forward with the second gear current at 200Hz frequency. If the locking hall output signal becomes low within 20000 steps, then continu...

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 relates to an anti-backlash locking mechanism driving control method and system for a spacecraft, and the method comprises the steps: adjusting the driving current of the stepping motor of the anti-backlash locking mechanism in a forward locking mode and a reverse unlocking mode, so that in a forward locking task, the driving torque of the anti-backlash locking mechanism is not larger than the torque during reverse unlocking all the time, locking of the mechanism during operation can be effectively avoided, and the feasibility of the method is verified through test results of special tests.

Description

technical field [0001] The invention relates to a drive control method and system for an anti-backlash locking mechanism for a space spacecraft, belonging to the field of spacecraft attitude control. Background technique [0002] The rotary joint subsystem is associated with the satellite platform and the load platform, and is divided into two working conditions: mechanical bearing and magnetic suspension bearing. The switching of the working conditions is performed by the anti-backlash mechanism of the satellite platform, and the anti-backlash mechanism is driven by the anti-backlash locking mechanism. drive control. The anti-backlash mechanism is an important single unit of the rotary joint subsystem, which needs to perform two tasks of forward locking and reverse unlocking, and its normal operation directly affects the success or failure of the rotary joint subsystem. Due to the plastic deformation characteristics of the anti-backlash mechanism stand-alone structure, it ...

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): B64G1/64B64G1/22
CPCB64G1/64B64G1/22
Inventor 国锋于国庆李贵明武登云张激扬王勇张猛王红卫宋晓慧刘瑞吴纾婕
Owner BEIJING INST OF CONTROL ENG
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com