CUED Publications database

Surface excavation with model predictive control

Shekhar, RC and Maciejowski, JM (2010) Surface excavation with model predictive control. Proceedings of the IEEE Conference on Decision and Control. pp. 5239-5244. ISSN 0191-2216

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Abstract

This paper describes the application of variable-horizon model predictive control to trajectory generation in surface excavation. A nonlinear dynamic model of a surface mining machine digging in oil sand is developed as a test platform. This model is then stabilised with an inner-loop controller before being linearised to generate a prediction model. The linear model is used to design a predictive controller for trajectory generation. A variable horizon formulation is augmented with extra terms in the cost function to allow more control over digging, whilst still preserving the guarantee of finite-time completion. Simulations show the generation of realistic trajectories, motivating new applications of variable horizon MPC for autonomy that go beyond the realm of vehicle path planning. ©2010 IEEE.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div F > Control
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:52
Last Modified: 27 Nov 2014 19:19
DOI: 10.1109/CDC.2010.5717851