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
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  • 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 anti-backlash mechanism stand-alone structure, a driving control method for the anti-backlash locking mechanism f

Method used

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  • 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

Example Embodiment

[0057] Example:

[0058] The control computer can control the anti-backlash mechanism through fixed address injection, and the involved fixed address injection information 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 to be locked in the forward direction, it is driven at a frequency of 200Hz at the 1st gear current. Lock switch position.

[0063] If it is detected that the lock Hall output signal changes from high to low within 50000 steps of forward running, it will continue to move forward for 1000 steps;

[0064] If the lock Hall output signal is still high after 50,000 steps of forward running, it will drive forward with the 2nd gear current at 200Hz frequency. If the lock Hall output signal becomes low within 20000 steps, it will continue to move forward for 1000 steps...

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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

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Application Information

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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
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