Mobile robot battery life estimation: battery energy use of an unmanned ground vehicle

Arnon M. Hurwitz; James M. Dotterweich; Trevor A. Rocks

doi:10.1117/12.2587660

12 April 2021 Mobile robot battery life estimation: battery energy use of an unmanned ground vehicle

Arnon M. Hurwitz, James M. Dotterweich, Trevor A. Rocks

Proceedings Volume 11722, Energy Harvesting and Storage: Materials, Devices, and Applications XI; 117220I (2021) https://doi.org/10.1117/12.2587660
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

Engineers find it of importance to have a quantitative understanding of the charge-depletion characteristics of the battery-bank that powers a mobile unmanned ground vehicle (UGV) so as to have mission-duration, cost-of-transport, range, and other useful estimates. Data analysis to determine the energy use of a ‘large’ wheeled robot – the Clearpath™ Warthog – with Gross Vehicle Weight (GVW) 590 Kg. -- are here discussed. The analysis is based on gravel-surface, straight-path level trials. The results of this analysis inform how far the UGV can travel over the specified surface. We give basic methods for obtaining expected energy usage: tables with estimates for cost of transport and for mission range. Included in the analysis is a nonparametric method for identifying and dealing with the small number of ‘outlier,’ readings that often occur in field trials.

Conference Presentation

Citation Download Citation

Arnon M. Hurwitz, James M. Dotterweich, and Trevor A. Rocks "Mobile robot battery life estimation: battery energy use of an unmanned ground vehicle", Proc. SPIE 11722, Energy Harvesting and Storage: Materials, Devices, and Applications XI, 117220I (12 April 2021); https://doi.org/10.1117/12.2587660

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