logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11079239 B1

PDFFull Text
Expired
Date of Patent:
Aug. 03, 2021

Filed:

Sep. 24, 2020

Method for directly planning reentry trajectory in height-velocity profile

Applicant:

Dalian University of Technology, Dalian, CN;

Inventors:

Wenya Zhou, Dalian, CN;

Zhentao Nie, Dalian, CN;

Feng Yang, Dalian, CN;

Kai Liu, Dalian, CN;

Guanjun Wang, Dalian, CN;

Zhe Li, Dalian, CN;

Honggang Xu, Dalian, CN;

Feixiong Gao, Dalian, CN;

Assignee:

DALIAN UNIVERSITY OF TECHNOLOGY, Dalian, CN;

Attorney:

Bayramoglu Law Offices LLC

Primary Examiner:

Tyler D Paige

Int. Cl.
CPC ...
G01C 21/20 (2006.01); G05D 1/10 (2006.01); B64G 1/62 (2006.01);
U.S. Cl.
CPC ...
G01C 21/20 (2013.01); B64G 1/62 (2013.01); G05D 1/101 (2013.01);
Abstract

A method for directly planning a reentry trajectory in a height-velocity profile includes the following steps: S, extracting an actual working parameter of an aircraft, setting the maximum value {dot over (Q)}of a stagnation point heat flux, the maximum value qof dynamic pressure, and the maximum value nof overload according to the mission requirement, and solving the height-velocity boundary of the reentry trajectory, that is, a lower boundary of the reentry trajectory in the height-velocity profile; S, solving a reentry trajectory of an initial descent stage according to differential equations of reentry motion, and determining a starting point of a trajectory of a gliding stage according to the trajectory of the initial descent stage; and S, planning a trajectory in the height-velocity profile satisfying terminal constraints based on the lower boundary in the height-velocity profile, and calculating a corresponding bank angle, to obtain the reentry trajectory.

Find Patent Forward Citations

Zhou, Wenya. (2021). Method for directly planning reentry trajectory in height-velocity profile (U.S. Patent No. 11079239). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11079239

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…