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Path Planning: Differential Dynamic Programming and Model Predictive Path Integral Control on VTOL Aircraft Presentation Slides

Matthew D Houghton·Alex Oshin·Michael J Acheson·Irene Gregory·Evangelos A Theodorou
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Differential Dynamic ProgrammingModel Predictive Path Integral ControlModel Predictive ControlTrajectory Planning

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Matthew D Houghton, Alex Oshin, Michael J Acheson, Irene Gregory, Evangelos A Theodorou. 2022-01-03. Path Planning: Differential Dynamic Programming and Model Predictive Path Integral Control on VTOL Aircraft Presentation Slides. https://ntrs.nasa.gov/citations/20210025670

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Path Planning: Differential Dynamic Programming and Model Predictive Path Integral Control on VTOL Aircraft

This paper explores two optimal control approaches, widely used in robotics, to establish their viability as real-time trajectory planners for vehicle configurations envisioned for the emerging aviation sector of Urban Air Mobility (UAM). Differential Dynamic Programming (DDP) enables planning over highly nonlinear dynamics using second-order approximations along a nominal trajectory, and displays quadratic convergence to a local solution. Model Predictive Path Integral (MPPI) is a stochastic sampling-based algorithm that can optimize for general cost criteria, including potentially highly nonlinear formulations, and supports parallel computation through the use of modern GPU hardware. In this work, DDP and MPPI were implemented using model predictive control (MPC), and the results indicate they are able to successfully transition the aircraft over different flight envelopes and generate trajectories unique to UAM vehicles.

Differential Dynamic Programming↗