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Reusable launch vehicle control reconstruction method and system

A control system and vehicle technology, applied in attitude control, transportation and packaging, aircraft, etc., can solve problems such as unbalanced aerodynamic force and moment, loss of balance, vehicle actuator or sensor failure, etc., to ensure stability performance, improved robustness and reliability

Active Publication Date: 2018-04-27
CHINA ACAD OF LAUNCH VEHICLE TECH
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AI Technical Summary

Problems solved by technology

Due to the repeated use of the carrier to work in various harsh environments such as vacuum, weightlessness, high and low temperature, and strong radiation, as well as the aging of system components caused by long-term work, the actuator or sensor of the carrier will fail, which will affect the entire control. system reliability
For example, a failure of the actuator will cause the vehicle to generate unbalanced aerodynamic force and moment, and destroy the original aerodynamic force distribution of the vehicle. If it is not handled in time, the vehicle will not be able to complete the flight mission. Loss of balance and dangerous accident

Method used

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  • Reusable launch vehicle control reconstruction method and system
  • Reusable launch vehicle control reconstruction method and system
  • Reusable launch vehicle control reconstruction method and system

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Embodiment Construction

[0040] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the public implementation manners of the present invention in detail with reference to the accompanying drawings.

[0041] The research on the control law under the fault condition of the reusable vehicle can be divided into two categories, one is the active reconfiguration control technology, and the other is the passive reconfiguration control technology, that is, the fault-tolerant control technology. Among them, active reconfiguration control technology needs to detect and diagnose faults, and reconstruct a new control system based on fault information to ensure system stability. Passive fault-tolerant technology does not rely on fault detection and diagnosis. According to the current sensor information, a control law with strong self-adaptive ability is designed. System stability. Passive reconfiguration technology does not rely on ...

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Abstract

The invention discloses a reusable launch vehicle control reconstruction method and system. The method comprises steps that the output information of a sensor is monitored and analyzed in real time; according to the analysis result of the output information of the sensor, the control strategy matched with the analysis result is selected; according to the selected control strategy, adaptive reconstruction of a control system of a reusable launch vehicle is carried out. The method is advantaged in that adaptive reconstruction of the reusable launch vehicle control system in the whole flight taskprocess is realized.

Description

technical field [0001] The invention belongs to the technical field of reusable vehicles, and in particular relates to a method and system for reconfiguring control of a reusable vehicle. Background technique [0002] The technical level of the space transportation system represents a country's ability to independently enter and exit space, reflects a country's ability to use space and develop space technology, maintains a country's space security and space interests, and is also a symbol of comprehensive national strength. With the rapid development of the field of space transportation in recent years, the concept of "reuse" has been paid more and more attention. The reusable vehicle is an ideal transportation tool to reduce the cost of space transportation, improve safety and reliability, and shorten the preparation time for transition. It is an important part of my country's space transportation system in the future. In addition, from the perspective of technological dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/08
CPCB64G1/244
Inventor 马婷婷韩鹏鑫郭金花闻悦李鑫郑平军吴莉莉黄世勇王飞王宁宇张广春蔡巧言朱永贵张旭辉张化照邵秋虎赵大海刘岱何朔海尔瀚
Owner CHINA ACAD OF LAUNCH VEHICLE TECH
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