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.:
Date of Patent:
Aug. 11, 2015
Filed:
Jun. 15, 2013
Orbit insertion device for artificial satellite aimed to explore a planet of unknown characteristics
Fukashi Andoh, Toyota, JP;
Fukashi Andoh, Toyota, JP;
Other;
Abstract
An orbit insertion device for artificial satellite aiming to explore a planet with unknown characteristics. A plurality of sensors send a plurality of measured states of the artificial satellite. A planetary attraction constant estimator calculates a planetary attraction constant based on the plurality of measured states. A drag force coefficient estimator calculates a drag force coefficient based on the plurality of measured states. A rate of convergence calculation unit calculates a rate of convergence based on the drag force coefficient. A fictitious control calculation unit calculates a fictitious control based on the planetary attraction constant, the drag force coefficient and the rate of convergence. A normalized thrust calculation unit calculates a normalized thrust based on the fictitious control. A plurality of thrusters generate a thrust based on the normalized thrust.