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Proceedings Paper

Establishing UGV power requirements based on mission profiles
Author(s): Jody D. Priddy; Randolph A. Jones; Burhman Q. Gates; Josh R. Fairley
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Paper Abstract

The propulsion systems employed on unmanned ground vehicle platforms in Future Force Units of Action will likely involve electric or hybrid-electric drive. Power storage systems for these platforms will therefore be driven largely by expected power depletion rates. Resistances that propulsion systems must overcome during maneuvers will be a major factor affecting power depletion rates, and the resistance forces will vary drastically depending on the mission. Therefore, realistic mission-related considerations need to be applied when defining power storage requirements. The US Army has developed numerous models and simulations that use terra-mechanics algorithms to predict maneuver capability for ground vehicles as limited by terrain and environmental factors, and the algorithms employed for predicting maneuver capability in most of these models and simulations are founded on the terra-mechanics algorithms contained in the NATO Reference Mobility Model. The NATO Reference Mobility Model uses physics-based force balancing algorithms with terra-mechanics relationships that were empirically derived from decades of vehicle-terrain interaction research, and it also incorporates proven methodologies for assessing mission effectiveness in terms of maneuver capabilities. The terra-mechanics algorithms and methodologies for assessing mission effectiveness that are implemented in this model and in other related software tools, such as those used for route analysis, can be used to generate realistic mission-related resistance profiles for defining power storage requirements.

Paper Details

Date Published: 9 May 2006
PDF: 9 pages
Proc. SPIE 6230, Unmanned Systems Technology VIII, 62302A (9 May 2006); doi: 10.1117/12.666289
Show Author Affiliations
Jody D. Priddy, U.S. Army Engineer Research and Development Ctr. (United States)
Randolph A. Jones, U.S. Army Engineer Research and Development Ctr. (United States)
Burhman Q. Gates, U.S. Army Engineer Research and Development Ctr. (United States)
Josh R. Fairley, U.S. Army Engineer Research and Development Ctr. (United States)

Published in SPIE Proceedings Vol. 6230:
Unmanned Systems Technology VIII
Grant R. Gerhart; Charles M. Shoemaker; Douglas W. Gage, Editor(s)

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