TR2022-057

PYROBOCOP: Python-based Robotic Control & Optimization Package for Manipulation


Abstract:

PYROBOCOP is a Python-based package for con-trol, optimization and estimation of robotic systems described by nonlinear Differential Algebraic Equations (DAEs). In par-ticular, the package can handle systems with contacts that are described by complementarity constraints and provides a gen-eral framework for specifying obstacle avoidance constraints. The package performs direct transcription of the DAEs into a set of nonlinear equations by performing orthogonal collocation on finite elements. PYROBOCOP provides automatic reformu-lation of the complementarity constraints that are tractable to NLP solvers to perform optimization of robotic systems. The package is interfaced with ADOL-C [1] for obtaining sparse derivatives by automatic differentiation and IPOPT [2] for performing optimization. We evaluate PYROBOCOP on several manipulation problems for control and estimation.

 

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  •  Raghunathan, A., Jha, D.K., Romeres, D., "PYROBOCOP: Python-based Robotic Control & Optimization Package for Manipulation", arXiv, DOI: 10.48550/​arXiv.2106.03220, March 2022.
    BibTeX arXiv
    • @article{Raghunathan2022mar,
    • author = {Raghunathan, Arvind and Jha, Devesh K. and Romeres, Diego},
    • title = {PYROBOCOP: Python-based Robotic Control & Optimization Package for Manipulation},
    • journal = {arXiv},
    • year = 2022,
    • month = mar,
    • doi = {10.48550/arXiv.2106.03220},
    • url = {https://arxiv.org/abs/2106.03220}
    • }