Spacecraft and control device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11485521
APP PUB NO 20200239163A1
SERIAL NO

16318844

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A spacecraft including: an engine; a thrust vector control device controlling a thrust vector as a direction of a thrust acting on the spacecraft; and a main control device configured to acquire state quantities of the spacecraft in a powered descending in which the spacecraft is guided to a target point while the engine generates the thrust, and generate a throttling command by which combustion of the engine is controlled and an operation command by which the thrust vector control device is operated. The state quantities contain a first acceleration parameter and a second acceleration parameter. The first and second acceleration parameters are calculated as coefficients A and B obtained by fitting based on acceleration of the spacecraft previously detected, supposing the following equation is satisfied between a reciprocal number 1/a of the acceleration a of the spacecraft and time t:

description='In-line Formulae' end='lead'1/a=−At+B  (1).description='In-line Formulae' end='tail'

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Patent Owner(s)

  • MITSUBISHI HEAVY INDUSTRIES, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kobayakawa, Toyonori Tokyo, JP 3 6
Nagase, Tetsuya Tokyo, JP 25 337
Sasaki, Atsushi Tokyo, JP 86 1609

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