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

Method and system for vertical return control of launch vehicle sub-stage based on multiple actuators

A multi-actuator and launch vehicle technology, applied in the field of aircraft control, to achieve the effects of solving singular problems, small loss of precision, and simple calculation process

Active Publication Date: 2021-02-09
CHINA ACAD OF LAUNCH VEHICLE TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide a method and system for the vertical return control of the carrier rocket sub-stage based on multiple actuators, and to solve the attitude control problem of the flight process after the separation of the first sub-stage of the carrier rocket

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
  • Method and system for vertical return control of launch vehicle sub-stage based on multiple actuators
  • Method and system for vertical return control of launch vehicle sub-stage based on multiple actuators
  • Method and system for vertical return control of launch vehicle sub-stage based on multiple actuators

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0027] Method example:

[0028] According to the external environment characteristics of different flight segments during the return process of the first sub-s...

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 method and system for vertical return control of a sub-stage of a carrier rocket based on multiple actuators. Wherein, the method includes the following steps: Step 1: Determine the actuator used for attitude control during the vertical return process of the rocket body of the first sub-stage of the launch vehicle; Step 2: use the actuator according to the principle of using the attitude actuator, and then control the first sub-stage Rocket body attitude; Step 3: Using the quaternion method based on area division to calculate the first-level rocket body attitude parameters. The invention solves the attitude control problem of different flight stages after the first sub-stage of the carrier rocket is separated, and meets the requirements of the vertical return scheme of the sub-stage of the carrier rocket.

Description

technical field [0001] The invention belongs to the field of aircraft control, in particular to a method for controlling the vertical return of a carrier rocket sub-stage based on multiple actuators. Background technique [0002] The vertical return of the sub-stage of the launch vehicle refers to that after the sub-stage of the rocket completes the flight mission and separates the stages, it flies back to the landing site autonomously according to the set trajectory through the control system and the power device, and lands stably on the landing site with a vertical rocket body attitude. Designated location of the landing field. [0003] In the process of returning to the ground after the separation of the rocket sub-stages, it has to go through different flight stages such as attitude adjustment, reentry, landing point adjustment, and vertical landing. The airspace span is large and the flight environment is complex. Different flight segments have different attitude contr...

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): G05D1/08G05D1/10
CPCB64G1/244G05D1/101
Inventor 张柳吴胜宝刘丙利汪小卫胡冬生何朔张烽李扬焉宁童科伟张雪梅唐琼
Owner CHINA ACAD OF LAUNCH VEHICLE TECH
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