Mission, technologies and design of planetary mobile vehicle

Computer Science – Robotics

Scientific paper

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Design Analysis, Mars Exploration, Mars Surface, Mission Planning, Robots, Roving Vehicles, Autonomous Navigation, French Space Program, Robotics, Trajectory Planning

Scientific paper

The French Space Agency (CNES) started a study in late 1992 of an autonomous rover VAP (for Planetary Autonomous Vehicle). The aim of this study was to investigate multimission mobile platform design. The focus was placed on a martian mission for several reasons: (1) there is a very high scientific interest for Mars surface exploration leading to a better understanding of the solar system and Earth evolution; (2) roving on the planet is one mandatory and preliminary step before the conquest of the 'red planet' by manned mission; and (3) it is a necessary complement to fixed networks and sample return, in order to get data relevant to very large areas. The overall system concept including launch, cruise, deboost from Mars orbit, Mars atmosphere entry, and landing is not part of the study but is only kept in mind, as these phases of the mission induce several constraints. The main results of the study are given, showing the two possibilities: a large vehicle of 450 kg as the baseline and a smaller vehicle of 250 kg as an option. The various subsystems are described and the choices justified. The expected performances are summarized.

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